Commit Graph

1165241 Commits

Author SHA1 Message Date
Quentin Schulz
0194856287 arm64: dts: rockchip: override BIOS_DISABLE signal via GPIO hog on RK3399 Puma
commit 741f5ba7ccba5d7ae796dd11c320e28045524771 upstream.

The Qseven BIOS_DISABLE signal on the RK3399-Q7 keeps the on-module eMMC
and SPI flash powered-down initially (in fact it keeps the reset signal
asserted). BIOS_DISABLE_OVERRIDE pin allows to override that signal so
that eMMC and SPI can be used regardless of the state of the signal.

Let's make this GPIO a hog so that it's reserved and locked in the
proper state.

At the same time, make sure the pin is reserved for the hog and cannot
be requested by another node.

Cc: stable@vger.kernel.org
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://lore.kernel.org/r/20240731-puma-emmc-6-v1-2-4e28eadf32d0@cherry.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-18 19:23:04 +02:00
Quentin Schulz
b8afddb8b6 arm64: dts: rockchip: fix eMMC/SPI corruption when audio has been used on RK3399 Puma
commit bb94a157b37ec23f53906a279320f6ed64300eba upstream.

In commit 91419ae042 ("arm64: dts: rockchip: use BCLK to GPIO switch
on rk3399"), an additional pinctrl state was added whose default pinmux
is for 8ch i2s0. However, Puma only has 2ch i2s0. It's been overriding
the pinctrl-0 property but the second property override was missed in
the aforementioned commit.

On Puma, a hardware slider called "BIOS Disable/Normal Boot" can disable
eMMC and SPI to force booting from SD card. Another software-controlled
GPIO is then configured to override this behavior to make eMMC and SPI
available without human intervention. This is currently done in U-Boot
and it was enough until the aforementioned commit.

Indeed, because of this additional not-yet-overridden property, this
software-controlled GPIO is now muxed in a state that does not override
this hardware slider anymore, rendering SPI and eMMC flashes unusable.

Let's override the property with the 2ch pinmux to fix this.

Fixes: 91419ae042 ("arm64: dts: rockchip: use BCLK to GPIO switch on rk3399")
Cc: stable@vger.kernel.org
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Link: https://lore.kernel.org/r/20240731-puma-emmc-6-v1-1-4e28eadf32d0@cherry.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-18 19:23:04 +02:00
Edward Adam Davis
67409b3585 mptcp: pm: Fix uaf in __timer_delete_sync
commit b4cd80b0338945a94972ac3ed54f8338d2da2076 upstream.

There are two paths to access mptcp_pm_del_add_timer, result in a race
condition:

     CPU1				CPU2
     ====                               ====
     net_rx_action
     napi_poll                          netlink_sendmsg
     __napi_poll                        netlink_unicast
     process_backlog                    netlink_unicast_kernel
     __netif_receive_skb                genl_rcv
     __netif_receive_skb_one_core       netlink_rcv_skb
     NF_HOOK                            genl_rcv_msg
     ip_local_deliver_finish            genl_family_rcv_msg
     ip_protocol_deliver_rcu            genl_family_rcv_msg_doit
     tcp_v4_rcv                         mptcp_pm_nl_flush_addrs_doit
     tcp_v4_do_rcv                      mptcp_nl_remove_addrs_list
     tcp_rcv_established                mptcp_pm_remove_addrs_and_subflows
     tcp_data_queue                     remove_anno_list_by_saddr
     mptcp_incoming_options             mptcp_pm_del_add_timer
     mptcp_pm_del_add_timer             kfree(entry)

In remove_anno_list_by_saddr(running on CPU2), after leaving the critical
zone protected by "pm.lock", the entry will be released, which leads to the
occurrence of uaf in the mptcp_pm_del_add_timer(running on CPU1).

Keeping a reference to add_timer inside the lock, and calling
sk_stop_timer_sync() with this reference, instead of "entry->add_timer".

Move list_del(&entry->list) to mptcp_pm_del_add_timer and inside the pm lock,
do not directly access any members of the entry outside the pm lock, which
can avoid similar "entry->x" uaf.

Fixes: 00cfd77b90 ("mptcp: retransmit ADD_ADDR when timeout")
Cc: stable@vger.kernel.org
Reported-and-tested-by: syzbot+f3a31fb909db9b2a5c4d@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=f3a31fb909db9b2a5c4d
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://patch.msgid.link/tencent_7142963A37944B4A74EF76CD66EA3C253609@qq.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-18 19:23:03 +02:00
Hans de Goede
1e8c2fa6a8 platform/x86: panasonic-laptop: Allocate 1 entry extra in the sinf array
commit 33297cef3101d950cec0033a0dce0a2d2bd59999 upstream.

Some DSDT-s have an off-by-one bug where the SINF package count is
one higher than the SQTY reported value, allocate 1 entry extra.

Also make the SQTY <-> SINF package count mismatch error more verbose
to help debugging similar issues in the future.

This fixes the panasonic-laptop driver failing to probe() on some
devices with the following errors:

[    3.958887] SQTY reports bad SINF length SQTY: 37 SINF-pkg-count: 38
[    3.958892] Couldn't retrieve BIOS data
[    3.983685] Panasonic Laptop Support - With Macros: probe of MAT0019:00 failed with error -5

Fixes: 709ee531c1 ("panasonic-laptop: add Panasonic Let's Note laptop extras driver v0.94")
Cc: stable@vger.kernel.org
Tested-by: James Harmison <jharmison@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240909113227.254470-2-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-18 19:23:03 +02:00
Hans de Goede
9291fadbd2 platform/x86: panasonic-laptop: Fix SINF array out of bounds accesses
commit f52e98d16e9bd7dd2b3aef8e38db5cbc9899d6a4 upstream.

The panasonic laptop code in various places uses the SINF array with index
values of 0 - SINF_CUR_BRIGHT(0x0d) without checking that the SINF array
is big enough.

Not all panasonic laptops have this many SINF array entries, for example
the Toughbook CF-18 model only has 10 SINF array entries. So it only
supports the AC+DC brightness entries and mute.

Check that the SINF array has a minimum size which covers all AC+DC
brightness entries and refuse to load if the SINF array is smaller.

For higher SINF indexes hide the sysfs attributes when the SINF array
does not contain an entry for that attribute, avoiding show()/store()
accessing the array out of bounds and add bounds checking to the probe()
and resume() code accessing these.

Fixes: e424fb8cc4 ("panasonic-laptop: avoid overflow in acpi_pcc_hotkey_add()")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240909113227.254470-1-hdegoede@redhat.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-18 19:23:03 +02:00
Trond Myklebust
996c148dcd NFS: Avoid unnecessary rescanning of the per-server delegation list
[ Upstream commit f92214e4c312f6ea9d78650cc6291d200f17abb6 ]

If the call to nfs_delegation_grab_inode() fails, we will not have
dropped any locks that require us to rescan the list.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Trond Myklebust
ca52183ac4 NFSv4: Fix clearing of layout segments in layoutreturn
[ Upstream commit d72b7963115bea971a28eaa2cb76722c023f9fdf ]

Make sure that we clear the layout segments in cases where we see a
fatal error, and also in the case where the layout is invalid.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
ChenXiaoSong
d2952183ee smb/server: fix return value of smb2_open()
[ Upstream commit 2186a116538a715b20e15f84fdd3545e5fe0a39b ]

In most error cases, error code is not returned in smb2_open(),
__process_request() will not print error message.

Fix this by returning the correct value at the end of smb2_open().

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Takashi Iwai
a6d2d2ad82 Input: i8042 - add Fujitsu Lifebook E756 to i8042 quirk table
[ Upstream commit 7ce7c2283fa6843ab3c2adfeb83dcc504a107858 ]

Yet another quirk entry for Fujitsu laptop.  Lifebook E756 requires
i8041.nomux for keeping the touchpad working after suspend/resume.

Link: https://bugzilla.suse.com/show_bug.cgi?id=1229056
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20240814100630.2048-1-tiwai@suse.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Rob Clark
7dc9997328 drm/msm/adreno: Fix error return if missing firmware-name
[ Upstream commit 624ab9cde26a9f150b4fd268b0f3dae3184dc40c ]

-ENODEV is used to signify that there is no zap shader for the platform,
and the CPU can directly take the GPU out of secure mode.  We want to
use this return code when there is no zap-shader node.  But not when
there is, but without a firmware-name property.  This case we want to
treat as-if the needed fw is not found.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/604564/
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Maximilian Luz
b6effaa7c5 platform/surface: aggregator_registry: Add support for Surface Laptop Go 3
[ Upstream commit ed235163c3f02329d5e37ed4485bbc39ed2568d4 ]

Add SAM client device nodes for the Surface Laptop Go 3. It seems to use
the same SAM client devices as the Surface Laptop Go 1 and 2, so re-use
their node group.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20240811131948.261806-3-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Maximilian Luz
646f2fcced platform/surface: aggregator_registry: Add Support for Surface Pro 10
[ Upstream commit 9c8e022567bbec53bee8ae75c44b3d6cd2080d42 ]

Add SAM client device nodes for the Surface Pro 10. It seems to use the
same SAM client devices as the Surface Pro 9, so re-use its node group.

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20240811131948.261806-2-luzmaximilian@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Anders Roxell
3698570389 scripts: kconfig: merge_config: config files: add a trailing newline
[ Upstream commit 33330bcf031818e60a816db0cfd3add9eecc3b28 ]

When merging files without trailing newlines at the end of the file, two
config fragments end up at the same row if file1.config doens't have a
trailing newline at the end of the file.

file1.config "CONFIG_1=y"
file2.config "CONFIG_2=y"
./scripts/kconfig/merge_config.sh -m .config file1.config file2.config

This will generate a .config looking like this.
cat .config
...
CONFIG_1=yCONFIG_2=y"

Making sure so we add a newline at the end of every config file that is
passed into the script.

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Dmitry Savin
45ec9f17ce HID: multitouch: Add support for GT7868Q
[ Upstream commit c8000deb68365b461b324d68c7ea89d730f0bb85 ]

GT7868Q has incorrect data in the report and needs a fixup.
The change enables haptic touchpad on Lenovo ThinkBook 13x Gen 4
and has been tested on the device.

Signed-off-by: Dmitry Savin <envelsavinds@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Jonathan Denose
415403a2a0 Input: synaptics - enable SMBus for HP Elitebook 840 G2
[ Upstream commit da897484557b34a54fabb81f6c223c19a69e546d ]

The kernel reports that the touchpad for this device can support a
different bus.

With SMBus enabled the touchpad movement is smoother and three-finger
gestures are recognized.

Signed-off-by: Jonathan Denose <jdenose@google.com>
Link: https://lore.kernel.org/r/20240719180612.1.Ib652dd808c274076f32cd7fc6c1160d2cf71753b@changeid
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:03 +02:00
Marek Vasut
2f4b531619 Input: ads7846 - ratelimit the spi_sync error message
[ Upstream commit ccbfea78adf75d3d9e87aa739dab83254f5333fa ]

In case the touch controller is not connected, this message keeps scrolling
on the console indefinitelly. Ratelimit it to avoid filling kernel logs.

"
ads7846 spi2.1: spi_sync --> -22
"

Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://lore.kernel.org/r/20240708211913.171243-1-marex@denx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Jeff Layton
5b7e3e9c2c btrfs: update target inode's ctime on unlink
[ Upstream commit 3bc2ac2f8f0b78a13140fc72022771efe0c9b778 ]

Unlink changes the link count on the target inode. POSIX mandates that
the ctime must also change when this occurs.

According to https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlink.html:

"Upon successful completion, unlink() shall mark for update the last data
 modification and last file status change timestamps of the parent
 directory. Also, if the file's link count is not 0, the last file status
 change timestamp of the file shall be marked for update."

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add link to the opengroup docs ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Christophe Leroy
deede79975 powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL
[ Upstream commit e7e846dc6c73fbc94ae8b4ec20d05627646416f2 ]

Booting with CONFIG_DEBUG_VIRTUAL leads to following warning when
passing hugepage reservation on command line:

  Kernel command line: hugepagesz=1g hugepages=1 hugepagesz=64m hugepages=1 hugepagesz=256m hugepages=1 noreboot
  HugeTLB: allocating 1 of page size 1.00 GiB failed.  Only allocated 0 hugepages.
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at arch/powerpc/include/asm/io.h:948 __alloc_bootmem_huge_page+0xd4/0x284
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc6-00396-g6b0e82791bd0-dirty #936
  Hardware name: MPC8544DS e500v2 0x80210030 MPC8544 DS
  NIP:  c1020240 LR: c10201d0 CTR: 00000000
  REGS: c13fdd30 TRAP: 0700   Not tainted  (6.10.0-rc6-00396-g6b0e82791bd0-dirty)
  MSR:  00021000 <CE,ME>  CR: 44084288  XER: 20000000

  GPR00: c10201d0 c13fde20 c130b560 e8000000 e8001000 00000000 00000000 c1420000
  GPR08: 00000000 00028001 00000000 00000004 44084282 01066ac0 c0eb7c9c efffe149
  GPR16: c0fc4228 0000005f ffffffff c0eb7d0c c0eb7cc0 c0eb7ce0 ffffffff 00000000
  GPR24: c1441cec efffe153 e8001000 c14240c0 00000000 c1441d64 00000000 e8000000
  NIP [c1020240] __alloc_bootmem_huge_page+0xd4/0x284
  LR [c10201d0] __alloc_bootmem_huge_page+0x64/0x284
  Call Trace:
  [c13fde20] [c10201d0] __alloc_bootmem_huge_page+0x64/0x284 (unreliable)
  [c13fde50] [c10207b8] hugetlb_hstate_alloc_pages+0x8c/0x3e8
  [c13fdeb0] [c1021384] hugepages_setup+0x240/0x2cc
  [c13fdef0] [c1000574] unknown_bootoption+0xfc/0x280
  [c13fdf30] [c0078904] parse_args+0x200/0x4c4
  [c13fdfa0] [c1000d9c] start_kernel+0x238/0x7d0
  [c13fdff0] [c0000434] set_ivor+0x12c/0x168
  Code: 554aa33e 7c042840 3ce0c142 80a7427c 5109a016 50caa016 7c9a2378 7fdcf378 4180000c 7c052040 41810160 7c095040 <0fe00000> 38c00000 40800108 3c60c0eb
  ---[ end trace 0000000000000000 ]---

This is due to virt_addr_valid() using high_memory before it is set.

high_memory is set in mem_init() using max_low_pfn, but max_low_pfn
is available long before, it is set in mem_topology_setup(). So just
like commit daa9ada209 ("powerpc/mm: Fix boot crash with FLATMEM")
moved the setting of max_mapnr immediately after the call to
mem_topology_setup(), the same can be done for high_memory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/62b69c4baad067093f39e7e60df0fe27a86b8d2a.1723100702.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Pawel Dembicki
179a4810fd net: phy: vitesse: repair vsc73xx autonegotiation
[ Upstream commit de7a670f8defe4ed2115552ad23dea0f432f7be4 ]

When the vsc73xx mdio bus work properly, the generic autonegotiation
configuration works well.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Bouke Sybren Haarsma
ac5021c257 drm: panel-orientation-quirks: Add quirk for Ayn Loki Max
[ Upstream commit 2c71c8459c8ca66bd8f597effaac892ee8448a9f ]

Add quirk orientation for Ayn Loki Max model.

This has been tested by JELOS team that uses their
own patched kernel for a while now and confirmed by
users in the ChimeraOS discord servers.

Signed-off-by: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240728124731.168452-3-boukehaarsma23@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Bouke Sybren Haarsma
192586247d drm: panel-orientation-quirks: Add quirk for Ayn Loki Zero
[ Upstream commit b86aa4140f6a8f01f35bfb05af60e01a55b48803 ]

Add quirk orientation for the Ayn Loki Zero.

This also has been tested/used by the JELOS team.

Signed-off-by: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240728124731.168452-2-boukehaarsma23@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Moon Yeounsu
29a103bbd8 net: ethernet: use ip_hdrlen() instead of bit shift
[ Upstream commit 9a039eeb71a42c8b13408a1976e300f3898e1be0 ]

`ip_hdr(skb)->ihl << 2` is the same as `ip_hdrlen(skb)`
Therefore, we should use a well-defined function not a bit shift
to find the header length.

It also compresses two lines to a single line.

Signed-off-by: Moon Yeounsu <yyyynoom@gmail.com>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Foster Snowhill
1f0e1917c4 usbnet: ipheth: fix carrier detection in modes 1 and 4
[ Upstream commit 67927a1b255d883881be9467508e0af9a5e0be9d ]

Apart from the standard "configurations", "interfaces" and "alternate
interface settings" in USB, iOS devices also have a notion of
"modes". In different modes, the device exposes a different set of
available configurations.

Depending on the iOS version, and depending on the current mode, the
length and contents of the carrier state control message differs:

* 1 byte (seen on iOS 4.2.1, 8.4):
    * 03: carrier off (mode 0)
    * 04: carrier on (mode 0)
* 3 bytes (seen on iOS 10.3.4, 15.7.6):
    * 03 03 03: carrier off (mode 0)
    * 04 04 03: carrier on (mode 0)
* 4 bytes (seen on iOS 16.5, 17.6):
    * 03 03 03 00: carrier off (mode 0)
    * 04 03 03 00: carrier off (mode 1)
    * 06 03 03 00: carrier off (mode 4)
    * 04 04 03 04: carrier on (mode 0 and 1)
    * 06 04 03 04: carrier on (mode 4)

Before this change, the driver always used the first byte of the
response to determine carrier state.

From this larger sample, the first byte seems to indicate the number of
available USB configurations in the current mode (with the exception of
the default mode 0), and in some cases (namely mode 1 and 4) does not
correlate with the carrier state.

Previous logic erroneously counted `04 03 03 00` as "carrier on" and
`06 04 03 04` as "carrier off" on iOS versions that support mode 1 and
mode 4 respectively.

Only modes 0, 1 and 4 expose the USB Ethernet interfaces necessary for
the ipheth driver.

Check the second byte of the control message where possible, and fall
back to checking the first byte on older iOS versions.

Signed-off-by: Foster Snowhill <forst@pen.gy>
Tested-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Namjae Jeon
92b27473d2 ksmbd: override fsids for smb2_query_info()
[ Upstream commit f6bd41280a44dcc2e0a25ed72617d25f586974a7 ]

Sangsoo reported that a DAC denial error occurred when accessing
files through the ksmbd thread. This patch override fsids for
smb2_query_info().

Reported-by: Sangsoo Lee <constant.lee@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
Namjae Jeon
d5e407468c ksmbd: override fsids for share path check
[ Upstream commit a018c1b636e79b60149b41151ded7c2606d8606e ]

Sangsoo reported that a DAC denial error occurred when accessing
files through the ksmbd thread. This patch override fsids for share
path check.

Reported-by: Sangsoo Lee <constant.lee@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-18 19:23:02 +02:00
jiangxinpei
8a268cb981 ANDROID: GKI: Update symbol list for honor
Update symbol list for honor in android/abi_gki_aarch64_honor

Bug: 365506689
Change-Id: I604163b979660eaedbc13d3da5c9e3cdb8275e50
Signed-off-by: jiangxinpei <jiangxinpei@honor.corp-partner.google.com>
2024-09-18 05:46:35 +00:00
jiangxinpei
be07389110 ANDROID: Allow vendor modules perform operationson on memleak detect
When an LMK (Low Memory Killer) occurs, it is crucial for us to identify
the underlying cause of low memory. Based on past experiences, memory
leaks are often the root cause in such situations. The purpose of this
function is to assist us in identifying which application or type of
memory is experiencing memory leaks, thereby enabling us to effectively
locate and address the memory leakage issue.

Bug: 365506689
Bug: 346707562
Change-Id: I5d7d6bdbca30660f2a552211fd8aff40d3550df7
Signed-off-by: jiangxinpei <jiangxinpei@honor.corp-partner.google.com>
(cherry picked from commit d61134668c2d37846a6cea3e1ab3c237f2c7bc99)
2024-09-18 05:46:35 +00:00
jiangxinpei
47871c381d ANDROID: GKI: Update symbol list for honor
Update symbol list for honor in android/abi_gki_aarch64_honor

Bug: 365506454
Change-Id: I5d9a7a41da2a6f97998fadbbcb447db53b873bcc
Signed-off-by: jiangxinpei <jiangxinpei@honor.corp-partner.google.com>
2024-09-18 10:51:09 +08:00
Dezhi Huang
c7b8f95c21 ANDROID: Allow vendor modules perform more operations on binder transaction.
Export binder_alloc_copy_from_buffer, allow vendor modules perform more operations
on binder transaction and improve user operation fluency and timeliness experience.

Bug: 365506454
Bug: 343139379
Change-Id: I4353763099d854a62d0b70b003fbaca00e2c76e4
Signed-off-by: Dezhi Huang <huangdezhi@hihonor.com>
(cherry picked from commit d8db83d94e14b48819bba18cb975943c237e33df)
2024-09-18 10:48:45 +08:00
Greg Kroah-Hartman
20739a07f1 Revert "leds: trigger: Remove unused function led_trigger_rename_static()"
This reverts commit b4e147d3f1 which is
commit c82a1662d4548c454de5343b88f69b9fc82266b3 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Iea8ece3b5c88a97395e25c2ba7a512872a81e93f
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-14 14:37:04 +00:00
Greg Kroah-Hartman
20c4ef91bd Revert "leds: trigger: Store brightness set by led_trigger_event()"
This reverts commit 2bc78ff25f which is
commit 822c91e72eac568ed8d83765634f00decb45666c upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: If8dc383e04251ba799709f922a570097a65982ac
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-14 14:36:59 +00:00
Greg Kroah-Hartman
35455634f9 Revert "leds: trigger: Call synchronize_rcu() before calling trig->activate()"
This reverts commit c3f8e2ec3c which is
commit b1bbd20f35e19774ea01989320495e09ac44fba3 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I3c84527151f1018837dce6c1c77756ae4909da8e
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-14 14:36:55 +00:00
Greg Kroah-Hartman
ba60d6bd37 Revert "leds: triggers: Flush pending brightness before activating trigger"
This reverts commit 7118f97916 which is
commit ab477b766edd3bfb6321a6e3df4c790612613fae upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I504fb7dbfa49fb2d1b79107fc35325b9d5bc399d
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-14 14:36:51 +00:00
Greg Kroah-Hartman
2d60d8fc30 Revert "sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)"
This reverts commit cf3a73eeb5 which is
commit 520713a93d550406dae14d49cdb8778d70cecdfd upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I53affa8f6283544467f3335459862a5a5c04e500
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-14 14:31:33 +00:00
Daeho Jeong
d1f3a046a6 FROMGIT: f2fs: prevent atomic file from being dirtied before commit
Keep atomic file clean while updating and make it dirtied during commit
in order to avoid unnecessary and excessive inode updates in the previous
fix.

Fixes: 4bf78322346f ("f2fs: mark inode dirty for FI_ATOMIC_COMMITTED flag")
Change-Id: I2a29d047fa4233632876c61cf909340d1f60c26d
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Bug: 352181300
(cherry picked from commit fccaa81de87e80b1809906f7e438e5766fbdc172
 https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git dev)
Change-Id: I5970e56a5318804cfebea340b5b19d6e0a66dc01
Signed-off-by: Daeho Jeong <daehojeong@google.com>
2024-09-13 13:22:33 -07:00
Greg Kroah-Hartman
0733d0505b Merge 6.1.104 into android14-6.1-lts
Changes in 6.1.104
	arm64: dts: qcom: msm8998: switch USB QMP PHY to new style of bindings
	arm64: dts: qcom: msm8998: Disable SS instance in Parkmode for USB
	arm64: dts: qcom: ipq8074: Disable SS instance in Parkmode for USB
	sysctl: allow change system v ipc sysctls inside ipc namespace
	sysctl: allow to change limits for posix messages queues
	sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)
	sysctl: always initialize i_uid/i_gid
	ext4: make ext4_es_insert_extent() return void
	ext4: refactor ext4_da_map_blocks()
	ext4: convert to exclusive lock while inserting delalloc extents
	ext4: factor out a common helper to query extent map
	ext4: check the extent status again before inserting delalloc block
	cpufreq: qcom-nvmem: Convert to platform remove callback returning void
	cpufreq: qcom-nvmem: Simplify driver data allocation
	cpufreq: qcom-nvmem: fix memory leaks in probe error paths
	leds: trigger: Remove unused function led_trigger_rename_static()
	leds: trigger: Store brightness set by led_trigger_event()
	leds: trigger: Call synchronize_rcu() before calling trig->activate()
	leds: triggers: Flush pending brightness before activating trigger
	mm: restrict the pcp batch scale factor to avoid too long latency
	mm: page_alloc: control latency caused by zone PCP draining
	mm/page_alloc: fix pcp->count race between drain_pages_zone() vs __rmqueue_pcplist()
	f2fs: fix to avoid use SSR allocate when do defragment
	f2fs: assign CURSEG_ALL_DATA_ATGC if blkaddr is valid
	irqdomain: Fixed unbalanced fwnode get and put
	drm/udl: Rename struct udl_drm_connector to struct udl_connector
	drm/udl: Test pixel limit in mode-config's mode-valid function
	drm/udl: Use USB timeout constant when reading EDID
	drm/udl: Various improvements to the connector
	drm/udl: Move connector to modesetting code
	drm/udl: Remove DRM_CONNECTOR_POLL_HPD
	drm/i915/dp: Don't switch the LTTPR mode on an active link
	MIPS: Loongson64: DTS: Add RTC support to Loongson-2K1000
	MIPS: Loongson64: DTS: Fix PCIe port nodes for ls7a
	MIPS: dts: loongson: Fix liointc IRQ polarity
	MIPS: dts: loongson: Fix ls2k1000-rtc interrupt
	HID: amd_sfh: Remove duplicate cleanup
	HID: amd_sfh: Split sensor and HID initialization
	HID: amd_sfh: Move sensor discovery before HID device initialization
	drm/nouveau: prime: fix refcount underflow
	drm/vmwgfx: Fix overlay when using Screen Targets
	drm/vmwgfx: Trigger a modeset when the screen moves
	sched: act_ct: take care of padding in struct zones_ht_key
	ALSA: hda: conexant: Fix headset auto detect fail in the polling mode
	Bluetooth: hci_sync: Fix suspending with wrong filter policy
	net: axienet: start napi before enabling Rx/Tx
	rtnetlink: Don't ignore IFLA_TARGET_NETNSID when ifname is specified in rtnl_dellink().
	ice: respect netif readiness in AF_XDP ZC related ndo's
	ice: don't busy wait for Rx queue disable in ice_qp_dis()
	ice: replace synchronize_rcu with synchronize_net
	ice: add missing WRITE_ONCE when clearing ice_rx_ring::xdp_prog
	net/iucv: fix use after free in iucv_sock_close()
	drm/i915/hdcp: Fix HDCP2_STREAM_STATUS macro
	net: mvpp2: Don't re-use loop iterator
	ALSA: hda: Conditionally use snooping for AMD HDMI
	netfilter: iptables: Fix null-ptr-deref in iptable_nat_table_init().
	netfilter: iptables: Fix potential null-ptr-deref in ip6table_nat_table_init().
	net/mlx5: Lag, don't use the hardcoded value of the first port
	net/mlx5: Fix missing lock on sync reset reload
	net/mlx5e: Add a check for the return value from mlx5_port_set_eth_ptys
	ipv6: fix ndisc_is_useropt() handling for PIO
	riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error()
	arm64: jump_label: Ensure patched jump_labels are visible to all CPUs
	rust: SHADOW_CALL_STACK is incompatible with Rust
	platform/chrome: cros_ec_proto: Lock device when updating MKBP version
	HID: wacom: Modify pen IDs
	btrfs: zoned: fix zone_unusable accounting on making block group read-write again
	protect the fetch of ->fd[fd] in do_dup2() from mispredictions
	mptcp: sched: check both directions for backup
	ALSA: usb-audio: Correct surround channels in UAC1 channel map
	ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G
	Revert "ALSA: firewire-lib: obsolete workqueue for period update"
	Revert "ALSA: firewire-lib: operate for period elapse event in process context"
	drm/vmwgfx: Fix a deadlock in dma buf fence polling
	drm/i915: Fix possible int overflow in skl_ddi_calculate_wrpll()
	net: usb: sr9700: fix uninitialized variable use in sr_mdio_read
	r8169: don't increment tx_dropped in case of NETDEV_TX_BUSY
	mptcp: fix user-space PM announced address accounting
	mptcp: distinguish rcv vs sent backup flag in requests
	mptcp: fix NL PM announced address accounting
	mptcp: fix bad RCVPRUNED mib accounting
	mptcp: pm: only set request_bkup flag when sending MP_PRIO
	mptcp: fix duplicate data handling
	selftests: mptcp: always close input's FD if opened
	netfilter: ipset: Add list flush to cancel_gc
	Linux 6.1.104

Change-Id: I6e7acf04893dbbfc6dc8e57c1f2bdb487687f227
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-13 07:52:15 +00:00
iabdullah
6e5b92a6a1 ANDROID: GKI: Add symbol list for exynosauto
These symbols are required to use custom driver
for writing data into Serial device
using common TTY drivers for basic data trasmit via UART/SPI.

INFO: 2 function symbol(s) added
  'int serdev_device_write(struct serdev_device*, const unsigned char*, size_t, long)'
  'void serdev_device_write_wakeup(struct serdev_device*)'

Bug: 356635235
Change-Id: Ia365485ad4b533e5e2826add9182bc98b5563f81
Signed-off-by: iabdullah <imrankhan.abdullah@harman.com>
2024-09-12 18:53:21 +00:00
Greg Kroah-Hartman
1353c19161 Revert "spi: microchip-core: switch to use modern name"
This reverts commit b39ec657ac which is
commit 8f8bf52ed5b76fc7958b0fbe3131540aecdff8ac upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Id0361c629d7c4941f132ac93f035f05fc5bf5099
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-12 15:08:43 +00:00
Greg Kroah-Hartman
3dc93ab587 Revert "spi: microchip-core: fix init function not setting the master and motorola modes"
This reverts commit 99dab05987 which is
commit 3a5e76283672efddf47cea39ccfe9f5735cc91d5 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I46d93ecc53d873a566f2d3ef8a9e8acf3a09cc59
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-12 15:08:25 +00:00
Greg Kroah-Hartman
cb1459f2a5 Revert "jump_label: Prevent key->enabled int overflow"
This reverts commit 550cb99691 which is
commit eb8c507296 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Ibfe863eab77b6e07e72bd50022cd994ee15d75dc
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-12 13:51:43 +00:00
Greg Kroah-Hartman
7c3cc07862 Revert "jump_label: Fix concurrency issues in static_key_slow_dec()"
This reverts commit 6b8ccab544 which is
commit 83ab38ef0a0b2407d43af9575bb32333fdd74fb2 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Ie36013c12e969a77b3f68bd37a3b4caab877d593
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-12 13:51:27 +00:00
Greg Kroah-Hartman
81c0bf47a8 ANDROID: fix up crc issue for cpuset_cpus_allowed()
In commit 29a8d4e02f ("cgroup/cpuset: Prevent UAF in
proc_cpuset_show()"), a new .h file is added to kernel/cgroup/cpuset.c
which ends up changing the CRC for cpuset_cpus_allowed().  Fix this up
by only including it in the real build, not when generating the looney
crc values.

Fixes: 29a8d4e02f ("cgroup/cpuset: Prevent UAF in proc_cpuset_show()")
Change-Id: I151a87d3bae9f2319d1a965a4bf715cffead702e
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-09-12 10:43:22 +00:00
Greg Kroah-Hartman
5f55cad62c Linux 6.1.110
Link: https://lore.kernel.org/r/20240910092557.876094467@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240911130536.697107864@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Pavel Machek (CIP) <pavel@denx.de>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:30 +02:00
Miklos Szeredi
2d3bc3d403 fuse: add feature flag for expire-only
commit 5cadfbd5a1 upstream.

Add an init flag idicating whether the FUSE_EXPIRE_ONLY flag of
FUSE_NOTIFY_INVAL_ENTRY is effective.

This is needed for backports of this feature, otherwise the server could
just check the protocol version.

Fixes: 4f8d37020e ("fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY")
Cc: <stable@vger.kernel.org> # v6.2
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:30 +02:00
Peng Wu
81eb07e299 regulator: of: fix a NULL vs IS_ERR() check in of_regulator_bulk_get_all()
commit c957387c40 upstream.

The regulator_get() function never returns NULL. It returns error pointers.

Fixes: 27b9ecc7a9 ("regulator: Add of_regulator_bulk_get_all")
Signed-off-by: Peng Wu <wupeng58@huawei.com>
Link: https://lore.kernel.org/r/20221122082242.82937-1-wupeng58@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:29 +02:00
Shakeel Butt
56fd70f4aa memcg: protect concurrent access to mem_cgroup_idr
commit 9972605a238339b85bd16b084eed5f18414d22db upstream.

Commit 73f576c04b ("mm: memcontrol: fix cgroup creation failure after
many small jobs") decoupled the memcg IDs from the CSS ID space to fix the
cgroup creation failures.  It introduced IDR to maintain the memcg ID
space.  The IDR depends on external synchronization mechanisms for
modifications.  For the mem_cgroup_idr, the idr_alloc() and idr_replace()
happen within css callback and thus are protected through cgroup_mutex
from concurrent modifications.  However idr_remove() for mem_cgroup_idr
was not protected against concurrency and can be run concurrently for
different memcgs when they hit their refcnt to zero.  Fix that.

We have been seeing list_lru based kernel crashes at a low frequency in
our fleet for a long time.  These crashes were in different part of
list_lru code including list_lru_add(), list_lru_del() and reparenting
code.  Upon further inspection, it looked like for a given object (dentry
and inode), the super_block's list_lru didn't have list_lru_one for the
memcg of that object.  The initial suspicions were either the object is
not allocated through kmem_cache_alloc_lru() or somehow
memcg_list_lru_alloc() failed to allocate list_lru_one() for a memcg but
returned success.  No evidence were found for these cases.

Looking more deeply, we started seeing situations where valid memcg's id
is not present in mem_cgroup_idr and in some cases multiple valid memcgs
have same id and mem_cgroup_idr is pointing to one of them.  So, the most
reasonable explanation is that these situations can happen due to race
between multiple idr_remove() calls or race between
idr_alloc()/idr_replace() and idr_remove().  These races are causing
multiple memcgs to acquire the same ID and then offlining of one of them
would cleanup list_lrus on the system for all of them.  Later access from
other memcgs to the list_lru cause crashes due to missing list_lru_one.

Link: https://lkml.kernel.org/r/20240802235822.1830976-1-shakeel.butt@linux.dev
Fixes: 73f576c04b ("mm: memcontrol: fix cgroup creation failure after many small jobs")
Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Muchun Song <muchun.song@linux.dev>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Adapted over commit 6f0df8e16e ("memcontrol: ensure memcg acquired by id is
  properly set up") not in the tree ]
Signed-off-by: Tomas Krcka <krckatom@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:29 +02:00
Yonghong Song
61f4bd46a0 bpf: Silence a warning in btf_type_id_size()
commit e6c2f594ed upstream.

syzbot reported a warning in [1] with the following stacktrace:
  WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btf_type_id_size+0x2d9/0x9d0 kernel/bpf/btf.c:1988
  ...
  RIP: 0010:btf_type_id_size+0x2d9/0x9d0 kernel/bpf/btf.c:1988
  ...
  Call Trace:
   <TASK>
   map_check_btf kernel/bpf/syscall.c:1024 [inline]
   map_create+0x1157/0x1860 kernel/bpf/syscall.c:1198
   __sys_bpf+0x127f/0x5420 kernel/bpf/syscall.c:5040
   __do_sys_bpf kernel/bpf/syscall.c:5162 [inline]
   __se_sys_bpf kernel/bpf/syscall.c:5160 [inline]
   __x64_sys_bpf+0x79/0xc0 kernel/bpf/syscall.c:5160
   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
   do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
   entry_SYSCALL_64_after_hwframe+0x63/0xcd

With the following btf
  [1] DECL_TAG 'a' type_id=4 component_idx=-1
  [2] PTR '(anon)' type_id=0
  [3] TYPE_TAG 'a' type_id=2
  [4] VAR 'a' type_id=3, linkage=static
and when the bpf_attr.btf_key_type_id = 1 (DECL_TAG),
the following WARN_ON_ONCE in btf_type_id_size() is triggered:
  if (WARN_ON_ONCE(!btf_type_is_modifier(size_type) &&
                   !btf_type_is_var(size_type)))
          return NULL;

Note that 'return NULL' is the correct behavior as we don't want
a DECL_TAG type to be used as a btf_{key,value}_type_id even
for the case like 'DECL_TAG -> STRUCT'. So there
is no correctness issue here, we just want to silence warning.

To silence the warning, I added DECL_TAG as one of kinds in
btf_type_nosize() which will cause btf_type_id_size() returning
NULL earlier without the warning.

  [1] https://lore.kernel.org/bpf/000000000000e0df8d05fc75ba86@google.com/

Reported-by: syzbot+958967f249155967d42a@syzkaller.appspotmail.com
Signed-off-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20230530205029.264910-1-yhs@fb.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Diogo Jahchan Koike <djahchankoike@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:29 +02:00
Filipe Manana
cd3087582e btrfs: fix race between direct IO write and fsync when using same fd
commit cd9253c23aedd61eb5ff11f37a36247cd46faf86 upstream.

If we have 2 threads that are using the same file descriptor and one of
them is doing direct IO writes while the other is doing fsync, we have a
race where we can end up either:

1) Attempt a fsync without holding the inode's lock, triggering an
   assertion failures when assertions are enabled;

2) Do an invalid memory access from the fsync task because the file private
   points to memory allocated on stack by the direct IO task and it may be
   used by the fsync task after the stack was destroyed.

The race happens like this:

1) A user space program opens a file descriptor with O_DIRECT;

2) The program spawns 2 threads using libpthread for example;

3) One of the threads uses the file descriptor to do direct IO writes,
   while the other calls fsync using the same file descriptor.

4) Call task A the thread doing direct IO writes and task B the thread
   doing fsyncs;

5) Task A does a direct IO write, and at btrfs_direct_write() sets the
   file's private to an on stack allocated private with the member
   'fsync_skip_inode_lock' set to true;

6) Task B enters btrfs_sync_file() and sees that there's a private
   structure associated to the file which has 'fsync_skip_inode_lock' set
   to true, so it skips locking the inode's VFS lock;

7) Task A completes the direct IO write, and resets the file's private to
   NULL since it had no prior private and our private was stack allocated.
   Then it unlocks the inode's VFS lock;

8) Task B enters btrfs_get_ordered_extents_for_logging(), then the
   assertion that checks the inode's VFS lock is held fails, since task B
   never locked it and task A has already unlocked it.

The stack trace produced is the following:

   assertion failed: inode_is_locked(&inode->vfs_inode), in fs/btrfs/ordered-data.c:983
   ------------[ cut here ]------------
   kernel BUG at fs/btrfs/ordered-data.c:983!
   Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI
   CPU: 9 PID: 5072 Comm: worker Tainted: G     U     OE      6.10.5-1-default #1 openSUSE Tumbleweed 69f48d427608e1c09e60ea24c6c55e2ca1b049e8
   Hardware name: Acer Predator PH315-52/Covini_CFS, BIOS V1.12 07/28/2020
   RIP: 0010:btrfs_get_ordered_extents_for_logging.cold+0x1f/0x42 [btrfs]
   Code: 50 d6 86 c0 e8 (...)
   RSP: 0018:ffff9e4a03dcfc78 EFLAGS: 00010246
   RAX: 0000000000000054 RBX: ffff9078a9868e98 RCX: 0000000000000000
   RDX: 0000000000000000 RSI: ffff907dce4a7800 RDI: ffff907dce4a7800
   RBP: ffff907805518800 R08: 0000000000000000 R09: ffff9e4a03dcfb38
   R10: ffff9e4a03dcfb30 R11: 0000000000000003 R12: ffff907684ae7800
   R13: 0000000000000001 R14: ffff90774646b600 R15: 0000000000000000
   FS:  00007f04b96006c0(0000) GS:ffff907dce480000(0000) knlGS:0000000000000000
   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
   CR2: 00007f32acbfc000 CR3: 00000001fd4fa005 CR4: 00000000003726f0
   Call Trace:
    <TASK>
    ? __die_body.cold+0x14/0x24
    ? die+0x2e/0x50
    ? do_trap+0xca/0x110
    ? do_error_trap+0x6a/0x90
    ? btrfs_get_ordered_extents_for_logging.cold+0x1f/0x42 [btrfs bb26272d49b4cdc847cf3f7faadd459b62caee9a]
    ? exc_invalid_op+0x50/0x70
    ? btrfs_get_ordered_extents_for_logging.cold+0x1f/0x42 [btrfs bb26272d49b4cdc847cf3f7faadd459b62caee9a]
    ? asm_exc_invalid_op+0x1a/0x20
    ? btrfs_get_ordered_extents_for_logging.cold+0x1f/0x42 [btrfs bb26272d49b4cdc847cf3f7faadd459b62caee9a]
    ? btrfs_get_ordered_extents_for_logging.cold+0x1f/0x42 [btrfs bb26272d49b4cdc847cf3f7faadd459b62caee9a]
    btrfs_sync_file+0x21a/0x4d0 [btrfs bb26272d49b4cdc847cf3f7faadd459b62caee9a]
    ? __seccomp_filter+0x31d/0x4f0
    __x64_sys_fdatasync+0x4f/0x90
    do_syscall_64+0x82/0x160
    ? do_futex+0xcb/0x190
    ? __x64_sys_futex+0x10e/0x1d0
    ? switch_fpu_return+0x4f/0xd0
    ? syscall_exit_to_user_mode+0x72/0x220
    ? do_syscall_64+0x8e/0x160
    ? syscall_exit_to_user_mode+0x72/0x220
    ? do_syscall_64+0x8e/0x160
    ? syscall_exit_to_user_mode+0x72/0x220
    ? do_syscall_64+0x8e/0x160
    ? syscall_exit_to_user_mode+0x72/0x220
    ? do_syscall_64+0x8e/0x160
    entry_SYSCALL_64_after_hwframe+0x76/0x7e

Another problem here is if task B grabs the private pointer and then uses
it after task A has finished, since the private was allocated in the stack
of task A, it results in some invalid memory access with a hard to predict
result.

This issue, triggering the assertion, was observed with QEMU workloads by
two users in the Link tags below.

Fix this by not relying on a file's private to pass information to fsync
that it should skip locking the inode and instead pass this information
through a special value stored in current->journal_info. This is safe
because in the relevant section of the direct IO write path we are not
holding a transaction handle, so current->journal_info is NULL.

The following C program triggers the issue:

   $ cat repro.c
   /* Get the O_DIRECT definition. */
   #ifndef _GNU_SOURCE
   #define _GNU_SOURCE
   #endif

   #include <stdio.h>
   #include <stdlib.h>
   #include <unistd.h>
   #include <stdint.h>
   #include <fcntl.h>
   #include <errno.h>
   #include <string.h>
   #include <pthread.h>

   static int fd;

   static ssize_t do_write(int fd, const void *buf, size_t count, off_t offset)
   {
       while (count > 0) {
           ssize_t ret;

           ret = pwrite(fd, buf, count, offset);
           if (ret < 0) {
               if (errno == EINTR)
                   continue;
               return ret;
           }
           count -= ret;
           buf += ret;
       }
       return 0;
   }

   static void *fsync_loop(void *arg)
   {
       while (1) {
           int ret;

           ret = fsync(fd);
           if (ret != 0) {
               perror("Fsync failed");
               exit(6);
           }
       }
   }

   int main(int argc, char *argv[])
   {
       long pagesize;
       void *write_buf;
       pthread_t fsyncer;
       int ret;

       if (argc != 2) {
           fprintf(stderr, "Use: %s <file path>\n", argv[0]);
           return 1;
       }

       fd = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC | O_DIRECT, 0666);
       if (fd == -1) {
           perror("Failed to open/create file");
           return 1;
       }

       pagesize = sysconf(_SC_PAGE_SIZE);
       if (pagesize == -1) {
           perror("Failed to get page size");
           return 2;
       }

       ret = posix_memalign(&write_buf, pagesize, pagesize);
       if (ret) {
           perror("Failed to allocate buffer");
           return 3;
       }

       ret = pthread_create(&fsyncer, NULL, fsync_loop, NULL);
       if (ret != 0) {
           fprintf(stderr, "Failed to create writer thread: %d\n", ret);
           return 4;
       }

       while (1) {
           ret = do_write(fd, write_buf, pagesize, 0);
           if (ret != 0) {
               perror("Write failed");
               exit(5);
           }
       }

       return 0;
   }

   $ mkfs.btrfs -f /dev/sdi
   $ mount /dev/sdi /mnt/sdi
   $ timeout 10 ./repro /mnt/sdi/foo

Usually the race is triggered within less than 1 second. A test case for
fstests will follow soon.

Reported-by: Paulo Dias <paulo.miguel.dias@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219187
Reported-by: Andreas Jahn <jahn-andi@web.de>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219199
Reported-by: syzbot+4704b3cc972bd76024f1@syzkaller.appspotmail.com
Link: https://lore.kernel.org/linux-btrfs/00000000000044ff540620d7dee2@google.com/
Fixes: 939b656bc8ab ("btrfs: fix corruption after buffer fault in during direct IO append write")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:29 +02:00
Thomas Gleixner
c5e3ce3e82 x86/mm: Fix PTI for i386 some more
commit c48b5a4cf3125adb679e28ef093f66ff81368d05 upstream.

So it turns out that we have to do two passes of
pti_clone_entry_text(), once before initcalls, such that device and
late initcalls can use user-mode-helper / modprobe and once after
free_initmem() / mark_readonly().

Now obviously mark_readonly() can cause PMD splits, and
pti_clone_pgtable() doesn't like that much.

Allow the late clone to split PMDs so that pagetables stay in sync.

[peterz: Changelog and comments]
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lkml.kernel.org/r/20240806184843.GX37996@noisy.programming.kicks-ass.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-09-12 11:10:29 +02:00
Li Nan
ca24943589 ublk_drv: fix NULL pointer dereference in ublk_ctrl_start_recovery()
[ Upstream commit e58f5142f88320a5b1449f96a146f2f24615c5c7 ]

When two UBLK_CMD_START_USER_RECOVERY commands are submitted, the
first one sets 'ubq->ubq_daemon' to NULL, and the second one triggers
WARN in ublk_queue_reinit() and subsequently a NULL pointer dereference
issue.

Fix it by adding the check in ublk_ctrl_start_recovery() and return
immediately in case of zero 'ub->nr_queues_ready'.

  BUG: kernel NULL pointer dereference, address: 0000000000000028
  RIP: 0010:ublk_ctrl_start_recovery.constprop.0+0x82/0x180
  Call Trace:
   <TASK>
   ? __die+0x20/0x70
   ? page_fault_oops+0x75/0x170
   ? exc_page_fault+0x64/0x140
   ? asm_exc_page_fault+0x22/0x30
   ? ublk_ctrl_start_recovery.constprop.0+0x82/0x180
   ublk_ctrl_uring_cmd+0x4f7/0x6c0
   ? pick_next_task_idle+0x26/0x40
   io_uring_cmd+0x9a/0x1b0
   io_issue_sqe+0x193/0x3f0
   io_wq_submit_work+0x9b/0x390
   io_worker_handle_work+0x165/0x360
   io_wq_worker+0xcb/0x2f0
   ? finish_task_switch.isra.0+0x203/0x290
   ? finish_task_switch.isra.0+0x203/0x290
   ? __pfx_io_wq_worker+0x10/0x10
   ret_from_fork+0x2d/0x50
   ? __pfx_io_wq_worker+0x10/0x10
   ret_from_fork_asm+0x1a/0x30
   </TASK>

Fixes: c732a852b4 ("ublk_drv: add START_USER_RECOVERY and END_USER_RECOVERY support")
Reported-and-tested-by: Changhui Zhong <czhong@redhat.com>
Closes: https://lore.kernel.org/all/CAGVVp+UvLiS+bhNXV-h2icwX1dyybbYHeQUuH7RYqUvMQf6N3w@mail.gmail.com
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Li Nan <linan122@huawei.com>
Link: https://lore.kernel.org/r/20240904031348.4139545-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12 11:10:29 +02:00