[ Upstream commit b44c0e7fef ]
The functions stop_active_transfers and ep_disable are both calling
remove_requests. This functions in both cases will giveback the requests
with status ESHUTDOWN, which also represents an physical disconnection.
For ep_disable this is not true. This patch adds the status parameter to
remove_requests and sets the status to ECONNRESET on ep_disable.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lore.kernel.org/r/20220720213523.1055897-1-m.grzeschik@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: f90f5afd50 ("usb: dwc3: gadget: Clear ep descriptor last")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit aa1d627207 ]
Prefer using kcalloc(a, b) over kzalloc(a * b) as this improves
semantics since kcalloc is intended for allocating an array of memory.
Signed-off-by: Kenneth Lee <klee33@uw.edu>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Stable-dep-of: 5bd76b8de5 ("ceph: fix NULL pointer dereference for req->r_session")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 89d43d0551 ]
When failing to allocate the sessions memory we should make sure
the req1 and req2 and the sessions get put. And also in case the
max_sessions decreased so when kreallocate the new memory some
sessions maybe missed being put.
And if the max_sessions is 0 krealloc will return ZERO_SIZE_PTR,
which will lead to a distinct access fault.
URL: https://tracker.ceph.com/issues/53819
Fixes: e1a4541ec0 ("ceph: flush the mdlog before waiting on unsafe reqs")
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Stable-dep-of: 5bd76b8de5 ("ceph: fix NULL pointer dereference for req->r_session")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 708c87168b ]
The "> max" tests should be ">= max" to prevent an out of bounds access
on the next lines.
Fixes: e1a4541ec0 ("ceph: flush the mdlog before waiting on unsafe reqs")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Stable-dep-of: 5bd76b8de5 ("ceph: fix NULL pointer dereference for req->r_session")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e1a4541ec0 ]
For the client requests who will have unsafe and safe replies from
MDS daemons, in the MDS side the MDS daemons won't flush the mdlog
(journal log) immediatelly, because they think it's unnecessary.
That's true for most cases but not all, likes the fsync request.
The fsync will wait until all the unsafe replied requests to be
safely replied.
Normally if there have multiple threads or clients are running, the
whole mdlog in MDS daemons could be flushed in time if any request
will trigger the mdlog submit thread. So usually we won't experience
the normal operations will stuck for a long time. But in case there
has only one client with only thread is running, the stuck phenomenon
maybe obvious and the worst case it must wait at most 5 seconds to
wait the mdlog to be flushed by the MDS's tick thread periodically.
This patch will trigger to flush the mdlog in the relevant and auth
MDSes to which the in-flight requests are sent just before waiting
the unsafe requests to finish.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Stable-dep-of: 5bd76b8de5 ("ceph: fix NULL pointer dereference for req->r_session")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit db8892bb1b ]
Patch adds support for Cadence DRD Super Speed Plus controller(CDNSP).
CDNSP DRD is a part of Cadence CDNSP controller.
The DRD CDNSP controller has a lot of difference on hardware level but on
software level is quite compatible with CDNS3 DRD. For this reason
CDNS3 DRD part of CDNS3 driver was reused for CDNSP driver.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Tested-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Stable-dep-of: 9d5333c931 ("usb: cdns3: host: fix endless superspeed hub port reset")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 56baa208f9 ]
[[ NOTE: this is completely untested by the author, but included solely
because, as noted in commit df57d73276 ("mmc: sdhci-pci: Fix
SDHCI_RESET_ALL for CQHCI for Intel GLK-based controllers"), "other
drivers using CQHCI might benefit from a similar change, if they
also have CQHCI reset by SDHCI_RESET_ALL." We've now seen the same
bug on at least MSM, Arasan, and Intel hardware. ]]
SDHCI_RESET_ALL resets will reset the hardware CQE state, but we aren't
tracking that properly in software. When out of sync, we may trigger
various timeouts.
It's not typical to perform resets while CQE is enabled, but this may
occur in some suspend or error recovery scenarios.
Include this fix by way of the new sdhci_and_cqhci_reset() helper.
I only patch the bcm7216 variant even though others potentially *could*
provide the 'supports-cqe' property (and thus enable CQHCI), because
d46ba2d17f ("mmc: sdhci-brcmstb: Add support for Command Queuing
(CQE)") and some Broadcom folks confirm that only the 7216 variant
actually supports it.
This patch depends on (and should not compile without) the patch
entitled "mmc: cqhci: Provide helper for resetting both SDHCI and
CQHCI".
Fixes: d46ba2d17f ("mmc: sdhci-brcmstb: Add support for Command Queuing (CQE)")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221026124150.v4.3.I6a715feab6d01f760455865e968ecf0d85036018@changeid
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6bcc55fe64 ]
Enabling this feature will allow the controller to stop the bus
clock when the bus is idle. The feature is not part of the standard
and is unique to newer Arasan cores and is enabled with a bit in a
vendor specific register. This feature will only be enabled for
non-removable devices because they don't switch the voltage and
clock gating breaks SD Card volatge switching.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20220427180853.35970-3-kdasu.kdev@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Stable-dep-of: 56baa208f9 ("mmc: sdhci-brcmstb: Fix SDHCI_RESET_ALL for CQHCI")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 869e4ae4cd ]
Add FORCE to placate a warning from make:
arch/nios2/boot/Makefile:24: FORCE prerequisite is missing
Fixes: 2fc8483fdc ("nios2: Build infrastructure")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 534bd70374 ]
When using dash as /bin/sh, the CC_HAS_ASM_GOTO_TIED_OUTPUT test fails
with a syntax error which is not the one we are looking for:
<stdin>: In function ‘foo’:
<stdin>:1:29: warning: missing terminating " character
<stdin>:1:29: error: missing terminating " character
<stdin>:2:5: error: expected ‘:’ before ‘+’ token
<stdin>:2:7: warning: missing terminating " character
<stdin>:2:7: error: missing terminating " character
<stdin>:2:5: error: expected declaration or statement at end of input
Removing '\n' solves this.
Fixes: 1aa0e8b144 ("Kconfig: Add option for asm goto w/ tied outputs to workaround clang-13 bug")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 4ad09d956f upstream.
In iio_register_sw_trigger_type(), configfs_register_default_group() is
possible to fail, but the entry add to iio_trigger_types_list is not
deleted.
This leaves wild in iio_trigger_types_list, which can cause page fault
when module is loading again. So fix this by list_del(&t->list) in error
path.
BUG: unable to handle page fault for address: fffffbfff81d7400
Call Trace:
<TASK>
iio_register_sw_trigger_type
do_one_initcall
do_init_module
load_module
...
Fixes: b662f809d4 ("iio: core: Introduce IIO software triggers")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221108032802.168623-1-chenzhongjin@huawei.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f6b1a1cf1c upstream.
If the starting position of our insert range happens to be in the hole
between the two ext4_extent_idx, because the lblk of the ext4_extent in
the previous ext4_extent_idx is always less than the start, which leads
to the "extent" variable access across the boundary, the following UAF is
triggered:
==================================================================
BUG: KASAN: use-after-free in ext4_ext_shift_extents+0x257/0x790
Read of size 4 at addr ffff88819807a008 by task fallocate/8010
CPU: 3 PID: 8010 Comm: fallocate Tainted: G E 5.10.0+ #492
Call Trace:
dump_stack+0x7d/0xa3
print_address_description.constprop.0+0x1e/0x220
kasan_report.cold+0x67/0x7f
ext4_ext_shift_extents+0x257/0x790
ext4_insert_range+0x5b6/0x700
ext4_fallocate+0x39e/0x3d0
vfs_fallocate+0x26f/0x470
ksys_fallocate+0x3a/0x70
__x64_sys_fallocate+0x4f/0x60
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xa9
==================================================================
For right shifts, we can divide them into the following situations：
1. When the first ee_block of ext4_extent_idx is greater than or equal to
start, make right shifts directly from the first ee_block.
1) If it is greater than start, we need to continue searching in the
previous ext4_extent_idx.
2) If it is equal to start, we can exit the loop (iterator=NULL).
2. When the first ee_block of ext4_extent_idx is less than start, then
traverse from the last extent to find the first extent whose ee_block
is less than start.
1) If extent is still the last extent after traversal, it means that
the last ee_block of ext4_extent_idx is less than start, that is,
start is located in the hole between idx and (idx+1), so we can
exit the loop directly (break) without right shifts.
2) Otherwise, make right shifts at the corresponding position of the
found extent, and then exit the loop (iterator=NULL).
Fixes: 331573febb ("ext4: Add support FALLOC_FL_INSERT_RANGE for fallocate")
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Link: https://lore.kernel.org/r/20220922120434.1294789-1-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 290b5fe096 ]
In the blamed commit, a rudimentary reallocation procedure for RX buffer
descriptors was implemented, for the situation when their format changes
between normal (no PTP) and extended (PTP).
enetc_hwtstamp_set() calls enetc_close() and enetc_open() in a sequence,
and this sequence loses information which was previously configured in
the TX BDR Mode Register, specifically via the enetc_set_bdr_prio() call.
The TX ring priority is configured by tc-mqprio and tc-taprio, and
affects important things for TSN such as the TX time of packets. The
issue manifests itself most visibly by the fact that isochron --txtime
reports premature packet transmissions when PTP is first enabled on an
enetc interface.
Save the TX ring priority in a new field in struct enetc_bdr (occupies a
2 byte hole on arm64) in order to make this survive a ring reconfiguration.
Fixes: 434cebabd3 ("enetc: Add dynamic allocation of extended Rx BD rings")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Link: https://lore.kernel.org/r/20221122130936.1704151-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 715bf2610f ]
The &priv->si->hw construct dereferences 2 pointers and makes lines
longer than they need to be, in turn making the code harder to read.
Replace &priv->si->hw accesses with a "hw" variable when there are 2 or
more accesses within a function that dereference this. This includes
loops, since &priv->si->hw is a loop invariant.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 290b5fe096 ("net: enetc: preserve TX ring priority across reconfiguration")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 32bf8e1f6f ]
Future work in this driver would like to look at priv->active_offloads &
ENETC_F_QBV to determine whether a tc-taprio qdisc offload was
installed, but this does not produce the intended effect.
All the other flags in priv->active_offloads are managed dynamically,
except ENETC_F_QBV which is set statically based on the probed SI capability.
This change makes priv->active_offloads & ENETC_F_QBV really track the
presence of a tc-taprio schedule on the port.
Some existing users, like the enetc_sched_speed_set() call from
phylink_mac_link_up(), are best kept using the old logic: the tc-taprio
offload does not re-trigger another link mode resolve, so the scheduler
needs to be functional from the get go, as long as Qbv is supported at
all on the port. So to preserve functionality there, look at the static
station interface capability from pf->si->hw_features instead.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 290b5fe096 ("net: enetc: preserve TX ring priority across reconfiguration")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f44e07a8af ]
The size of the TOD programmable field was incorrectly increased from
four to eight bytes with commit 1a2c5840ac ("s390/dump: cleanup CPU
save area handling").
This leads to an elf notes section NT_S390_TODPREG which has a size of
eight instead of four bytes in case of kdump, however even worse is
that the contents is incorrect: it is supposed to contain only the
contents of the TOD programmable field, but in fact contains a mix of
the TOD programmable field (32 bit upper bits) and parts of the CPU
timer register (lower 32 bits).
Fix this by simply changing the size of the todpreg field within the
save area structure. This will implicitly also fix the size of the
corresponding elf notes sections.
This also gets rid of this compile time warning:
in function ‘fortify_memcpy_chk’,
inlined from ‘save_area_add_regs’ at arch/s390/kernel/crash_dump.c:99:2:
./include/linux/fortify-string.h:413:25: error: call to ‘__read_overflow2_field’
declared with attribute warning: detected read beyond size of field
(2nd parameter); maybe use struct_group()? [-Werror=attribute-warning]
413 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixes: 1a2c5840ac ("s390/dump: cleanup CPU save area handling")
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c60c152230 ]
The first validation check for EVT_TRANSACTION has two different checks
tied together with logical AND. One is a check for minimum packet length,
and the other is for a valid aid_tag. If either condition is true (fails),
then an error should be triggered. The fix is to change && to ||.
Reported-by: Denis Efremov <denis.e.efremov@oracle.com>
Reviewed-by: Guenter Roeck <groeck@google.com>
Fixes: 5d1ceb7f5e ("NFC: st21nfcb: Add HCI transaction event support")
Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1c40cde6b5 ]
In com20020_probe(), if com20020_config() fails, dev and info
will not be freed, which will lead to a memory leak.
This patch adds freeing dev and info after com20020_config()
fails to fix this bug.
Compile tested only.
Fixes: 15b99ac172 ("[PATCH] pcmcia: add return value to _config() functions")
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 01365633bd ]
The main arcnet interrupt handler calls arcnet_close() then
arcnet_open(), if the RESET status flag is encountered.
This is invalid:
1) In general, interrupt handlers should never call ->ndo_stop() and
->ndo_open() functions. They are usually full of blocking calls and
other methods that are expected to be called only from drivers
init and exit code paths.
2) arcnet_close() contains a del_timer_sync(). If the irq handler
interrupts the to-be-deleted timer, del_timer_sync() will just loop
forever.
3) arcnet_close() also calls tasklet_kill(), which has a warning if
called from irq context.
4) For device reset, the sequence "arcnet_close(); arcnet_open();" is
not complete. Some children arcnet drivers have special init/exit
code sequences, which then embed a call to arcnet_open() and
arcnet_close() accordingly. Check drivers/net/arcnet/com20020.c.
Run the device RESET sequence from a scheduled workqueue instead.
Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/20210128194802.727770-1-a.darwish@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 1c40cde6b5 ("arcnet: fix potential memory leak in com20020_probe()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 590ce6d96d ]
For DASD devices in raw_track_access mode only full track images are
read and written.
For this purpose it is not necessary to do search operation in the
locate record extended function. The documentation even states that
this might fail if the searched record is not found on a track.
Currently the driver sets a value of 1 in the search field for the first
record after record zero. This is the default for disks not in
raw_track_access mode but record 1 might be missing on a completely
empty track.
There has not been any problem with this on IBM storage servers but it
might lead to errors with DASD devices on other vendors storage servers.
Fix this by setting the search field to 0. Record zero is always available
even on a completely empty track.
Fixes: e4dbb0f2b5 ("[S390] dasd: Add support for raw ECKD access.")
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20221123160719.3002694-4-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 77934dc6db ]
When connect() is called on a socket bound to the wildcard address,
we change the socket's saddr to a local address. If the socket
fails to connect() to the destination, we have to reset the saddr.
However, when an error occurs after inet_hash6?_connect() in
(dccp|tcp)_v[46]_conect(), we forget to reset saddr and leave
the socket bound to the address.
From the user's point of view, whether saddr is reset or not varies
with errno. Let's fix this inconsistent behaviour.
Note that after this patch, the repro [0] will trigger the WARN_ON()
in inet_csk_get_port() again, but this patch is not buggy and rather
fixes a bug papering over the bhash2's bug for which we need another
fix.
For the record, the repro causes -EADDRNOTAVAIL in inet_hash6_connect()
by this sequence:
s1 = socket()
s1.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s1.bind(('127.0.0.1', 10000))
s1.sendto(b'hello', MSG_FASTOPEN, (('127.0.0.1', 10000)))
# or s1.connect(('127.0.0.1', 10000))
s2 = socket()
s2.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s2.bind(('0.0.0.0', 10000))
s2.connect(('127.0.0.1', 10000)) # -EADDRNOTAVAIL
s2.listen(32) # WARN_ON(inet_csk(sk)->icsk_bind2_hash != tb2);
[0]: https://syzkaller.appspot.com/bug?extid=015d756bbd1f8b5c8f09
Fixes: 3df80d9320 ("[DCCP]: Introduce DCCPv6")
Fixes: 7c657876b6 ("[DCCP]: Initial implementation")
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit bcd9e3c165 ]
nf_flow_table_block_setup and the driver TC_SETUP_FT call can modify the flow
block cb list while they are being traversed elsewhere, causing a crash.
Add a write lock around the calls to protect readers
Fixes: c29f74e0df ("netfilter: nf_flow_table: hardware offload support")
Reported-by: Chad Monroe <chad.monroe@smartrg.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 40781bfb83 ]
When IPv6 module initializing in xfrm6_init(), register_pernet_subsys()
is possible to fail but its return value is ignored.
If IPv6 initialization fails later and xfrm6_fini() is called,
removing uninitialized list in xfrm6_net_ops will cause null-ptr-deref:
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 330 Comm: insmod
RIP: 0010:unregister_pernet_operations+0xc9/0x450
Call Trace:
<TASK>
unregister_pernet_subsys+0x31/0x3e
xfrm6_fini+0x16/0x30 [ipv6]
ip6_route_init+0xcd/0x128 [ipv6]
inet6_init+0x29c/0x602 [ipv6]
...
Fix it by catching the error return value of register_pernet_subsys().
Fixes: 8d068875ca ("xfrm: make gc_thresh configurable in all namespaces")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a7b42969d6 ]
One extra conn_get() is needed in tipc_conn_alloc(), as after
tipc_conn_alloc() is called, tipc_conn_close() may free this
con before deferencing it in tipc_topsrv_accept():
tipc_conn_alloc();
newsk = newsock->sk;
<---- tipc_conn_close();
write_lock_bh(&sk->sk_callback_lock);
newsk->sk_data_ready = tipc_conn_data_ready;
Then an uaf issue can be triggered:
BUG: KASAN: use-after-free in tipc_topsrv_accept+0x1e7/0x370 [tipc]
Call Trace:
<TASK>
dump_stack_lvl+0x33/0x46
print_report+0x178/0x4b0
kasan_report+0x8c/0x100
kasan_check_range+0x179/0x1e0
tipc_topsrv_accept+0x1e7/0x370 [tipc]
process_one_work+0x6a3/0x1030
worker_thread+0x8a/0xdf0
This patch fixes it by holding it in tipc_conn_alloc(), then after
all accessing in tipc_topsrv_accept() releasing it. Note when does
this in tipc_topsrv_kern_subscr(), as tipc_conn_rcv_sub() returns
0 or -1 only, we don't need to check for "> 0".
Fixes: c5fa7b3cf3 ("tipc: introduce new TIPC server infrastructure")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 0e5d56c64a ]
A crash was reported by Wei Chen:
BUG: kernel NULL pointer dereference, address: 0000000000000018
RIP: 0010:tipc_conn_close+0x12/0x100
Call Trace:
tipc_topsrv_exit_net+0x139/0x320
ops_exit_list.isra.9+0x49/0x80
cleanup_net+0x31a/0x540
process_one_work+0x3fa/0x9f0
worker_thread+0x42/0x5c0
It was caused by !con->sock in tipc_conn_close(). In tipc_topsrv_accept(),
con is allocated in conn_idr then its sock is set:
con = tipc_conn_alloc();
... <----[1]
con->sock = newsock;
If tipc_conn_close() is called in anytime of [1], the null-pointer-def
is triggered by con->sock->sk due to con->sock is not yet set.
This patch fixes it by moving the con->sock setting to tipc_conn_alloc()
under s->idr_lock. So that con->sock can never be NULL when getting the
con from s->conn_idr. It will be also safer to move con->server and flag
CF_CONNECTED setting under s->idr_lock, as they should all be set before
tipc_conn_alloc() is called.
Fixes: c5fa7b3cf3 ("tipc: introduce new TIPC server infrastructure")
Reported-by: Wei Chen <harperchen1110@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit aaf2e65cac ]
In case command interface is down, or the command is not allowed, driver
did not increment the entry refcount, but might have decrement as part
of forced completion handling.
Fix that by always increment and decrement the refcount to make it
symmetric for all flows.
Fixes: 50b2412b7e ("net/mlx5: Avoid possible free of command entry while timeout comp handler")
Signed-off-by: Eran Ben Elisha <eranbe@nvidia.com>
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reported-by: Jack Wang <jinpu.wang@ionos.com>
Tested-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 61db3d7b99 ]
Fix a bug in calculation of FW tracer timestamp. Decreasing one in the
calculation should effect only bits 52_7 and not effect bits 6_0 of the
timestamp, otherwise bits 6_0 are always set in this calculation.
Fixes: 70dd6fdb89 ("net/mlx5: FW tracer, parse traces and kernel tracing support")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Feras Daoud <ferasda@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c7aa1a76d4 ]
This patch introduced a regression: commit 48596a8ddc ("netfilter:
ipset: Fix adding an IPv4 range containing more than 2^31 addresses")
The variable e.ip is passed to adtfn() function which finally adds the
ip address to the set. The patch above refactored the for loop and moved
e.ip = htonl(ip) to the end of the for loop.
What this means is that if the value of "ip" changes between the first
assignement of e.ip and the forloop, then e.ip is pointing to a
different ip address than "ip".
Test case:
$ ipset create jdtest_tmp hash:ip family inet hashsize 2048 maxelem 100000
$ ipset add jdtest_tmp 10.0.1.1/31
ipset v6.21.1: Element cannot be added to the set: it's already added
The value of ip gets updated inside the "else if (tb[IPSET_ATTR_CIDR])"
block but e.ip is still pointing to the old value.
Fixes: 48596a8ddc ("netfilter: ipset: Fix adding an IPv4 range containing more than 2^31 addresses")
Reviewed-by: Joshua Hunt <johunt@akamai.com>
Signed-off-by: Vishwanath Pai <vpai@akamai.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5f7b51bf09 ]
The range size of consecutive elements were not limited. Thus one could
define a huge range which may result soft lockup errors due to the long
execution time. Now the range size is limited to 2^20 entries.
Reported-by: Brad Spengler <spender@grsecurity.net>
Signed-off-by: Jozsef Kadlecsik <kadlec@netfilter.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Stable-dep-of: c7aa1a76d4 ("netfilter: ipset: regression in ip_set_hash_ip.c")
Signed-off-by: Sasha Levin <sashal@kernel.org>
