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Liu Shixin ab54081a28 media: vivid: fix compose size exceed boundary 
[ Upstream commit 94a7ad9283 ]

syzkaller found a bug:

 BUG: unable to handle page fault for address: ffffc9000a3b1000
 #PF: supervisor write access in kernel mode
 #PF: error_code(0x0002) - not-present page
 PGD 100000067 P4D 100000067 PUD 10015f067 PMD 1121ca067 PTE 0
 Oops: 0002 [#1] PREEMPT SMP
 CPU: 0 PID: 23489 Comm: vivid-000-vid-c Not tainted 6.1.0-rc1+ #512
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
 RIP: 0010:memcpy_erms+0x6/0x10
[...]
 Call Trace:
  <TASK>
  ? tpg_fill_plane_buffer+0x856/0x15b0
  vivid_fillbuff+0x8ac/0x1110
  vivid_thread_vid_cap_tick+0x361/0xc90
  vivid_thread_vid_cap+0x21a/0x3a0
  kthread+0x143/0x180
  ret_from_fork+0x1f/0x30
  </TASK>

This is because we forget to check boundary after adjust compose->height
int V4L2_SEL_TGT_CROP case. Add v4l2_rect_map_inside() to fix this problem
for this case.

Fixes: ef834f7836 ("[media] vivid: add the video capture and output parts")
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:14:08 +01:00
arch MIPS: OCTEON: warn only once if deprecated link status is being used 2022-12-31 13:14:05 +01:00
block block: move CONFIG_BLOCK guard to top Makefile 2022-12-14 11:37:30 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-26 12:35:25 +02:00
Documentation spi: Update reference to struct spi_controller 2022-12-31 13:14:08 +01:00
drivers media: vivid: fix compose size exceed boundary 2022-12-31 13:14:08 +01:00
fs hfs: Fix OOB Write in hfs_asc2mac 2022-12-31 13:14:05 +01:00
include soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:14:07 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-02 17:41:08 +01:00
io_uring io_uring: Fix a null-ptr-deref in io_tctx_exit_cb() 2022-12-14 11:37:31 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel bpf: Fix slot type check in check_stack_write_var_off 2022-12-31 13:14:08 +01:00
lib lib/notifier-error-inject: fix error when writing -errno to debugfs file 2022-12-31 13:14:03 +01:00
LICENSES
mm mm/gup: fix gup_pud_range() for dax 2022-12-14 11:37:20 +01:00
net soreuseport: Fix socket selection for SO_INCOMING_CPU. 2022-12-31 13:14:07 +01:00
samples samples/landlock: Format with clang-format 2022-06-09 10:23:23 +02:00
scripts scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:28:38 +01:00
security ima: Handle -ESTALE returned by ima_filter_rule_match() 2022-12-31 13:14:08 +01:00
sound ASoC: ops: Correct bounds check for second channel on SX controls 2022-12-19 12:36:44 +01:00
tools libbpf: Btf dedup identical struct test needs check for nested structs/arrays 2022-12-31 13:14:07 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:27:15 +01:00
virt kvm: Add support for arch compat vm ioctls 2022-10-29 10:12:54 +02:00
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MAINTAINERS futex: Move to kernel/futex/ 2022-12-31 13:14:04 +01:00
Makefile Linux 5.15.85 2022-12-21 17:36:38 +01:00
README

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.