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Eric Auger fe3bcc2e23 iommu: fix KASAN use-after-free in iommu_insert_resv_region 
commit 4c80ba392b upstream.

In case the new region gets merged into another one, the nr list node is
freed.  Checking its type while completing the merge algorithm leads to
a use-after-free.  Use new->type instead.

Fixes: 4dbd258ff6 ("iommu: Revisit iommu_insert_resv_region() implementation")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reported-by: Qian Cai <cai@lca.pw>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Stable <stable@vger.kernel.org> #v5.3+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-31 16:45:52 +01:00
arch
MIPS: futex: Restore \n after sync instructions
2019-12-31 16:45:49 +01:00
block
block: fix "check bi_size overflow before merge"
2019-12-21 11:04:32 +01:00
certs
PKCS#7: Refactor verify_pkcs7_signature()
2019-08-05 18:40:18 -04:00
crypto
crypto: aegis128/simd - build 32-bit ARM for v8 architecture explicitly
2019-12-31 16:43:57 +01:00
Documentation
USB: documentation: flags on usb-storage versus UAS
2019-12-17 19:55:32 +01:00
drivers
iommu: fix KASAN use-after-free in iommu_insert_resv_region
2019-12-31 16:45:52 +01:00
fs
btrfs: don't prematurely free work in scrub_missing_raid56_worker()
2019-12-31 16:45:50 +01:00
include
net: avoid potential false sharing in neighbor related code
2019-12-31 16:45:03 +01:00
init
Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-09-28 08:14:15 -07:00
ipc
ipc/sem.c: convert to use built-in RCU list checking
2019-09-25 17:51:41 -07:00
kernel
bpf: Provide better register bounds after jmp32 instructions
2019-12-31 16:45:48 +01:00
lib
ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions
2019-12-31 16:44:25 +01:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
mm/shmem.c: cast the type of unmap_start to u64
2019-12-17 19:56:51 +01:00
net
mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED
2019-12-31 16:45:44 +01:00
samples
samples: pktgen: fix proc_cmd command result check logic
2019-12-31 16:43:45 +01:00
scripts
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2019-11-15 09:14:23 -08:00
security
efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN
2019-10-31 09:40:21 +01:00
sound
ASoC: soc-pcm: check symmetry before hw_params
2019-12-31 16:45:42 +01:00
tools
tools, bpf: Fix build for 'make -s tools/bpf O=<dir>'
2019-12-31 16:45:47 +01:00
usr
kbuild: update compile-test header list for v5.4-rc2
2019-10-05 15:29:49 +09:00
virt
KVM: arm/arm64: vgic: Don't rely on the wrong pending table
2019-12-13 08:43:00 +01:00
.clang-format
clang-format: Update with the latest for_each macro list
2019-08-31 10:00:51 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2019-09-22 10:34:46 -07:00
.mailmap
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-11-10 13:41:59 -08:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer
2019-10-10 08:12:51 -07:00
Kbuild
kbuild: do not descend to ./Kbuild when cleaning
2019-08-21 21:03:58 +09:00
Kconfig
docs: kbuild: convert docs to ReST and rename to *.rst
2019-06-14 14:21:21 -06:00
MAINTAINERS
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2019-11-22 14:28:14 -08:00
Makefile
Linux 5.4.6
2019-12-21 11:05:23 +01:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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