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THREATINT
PUBLISHED

CVE-2025-38226

media: vivid: Change the siize of the composing



Description

In the Linux kernel, the following vulnerability has been resolved: media: vivid: Change the siize of the composing syzkaller found a bug: BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2608 [inline] BUG: KASAN: vmalloc-out-of-bounds in tpg_fill_plane_buffer+0x1a9c/0x5af0 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705 Write of size 1440 at addr ffffc9000d0ffda0 by task vivid-000-vid-c/5304 CPU: 0 UID: 0 PID: 5304 Comm: vivid-000-vid-c Not tainted 6.14.0-rc2-syzkaller-00039-g09fbf3d50205 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0x169/0x550 mm/kasan/report.c:489 kasan_report+0x143/0x180 mm/kasan/report.c:602 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189 __asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106 tpg_fill_plane_pattern drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2608 [inline] tpg_fill_plane_buffer+0x1a9c/0x5af0 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705 vivid_fillbuff drivers/media/test-drivers/vivid/vivid-kthread-cap.c:470 [inline] vivid_thread_vid_cap_tick+0xf8e/0x60d0 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:629 vivid_thread_vid_cap+0x8aa/0xf30 drivers/media/test-drivers/vivid/vivid-kthread-cap.c:767 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> The composition size cannot be larger than the size of fmt_cap_rect. So execute v4l2_rect_map_inside() even if has_compose_cap == 0.

Reserved 2025-04-16 | Published 2025-07-04 | Updated 2025-07-04 | Assigner Linux

Product status

Default status
unaffected

f9d19f3a044ca651b0be52a4bf951ffe74259b9f before 635cea4f44c1ddae208666772c164eab5a6bce39
affected

ab54081a2843aefb837812fac5488cc8f1696142 before 89b5ab822bf69867c3951dd0eb34b0314c38966b
affected

2f558c5208b0f70c8140e08ce09fcc84da48e789 before 5d89aa42534723400fefd46e26e053b9c382b4ee
affected

94a7ad9283464b75b12516c5512541d467cefcf8 before f6b1b0f8ba0b61d8b511df5649d57235f230c135
affected

94a7ad9283464b75b12516c5512541d467cefcf8 before 00da1c767a6567e56f23dda586847586868ac064
affected

94a7ad9283464b75b12516c5512541d467cefcf8 before c56398885716d97ee9bcadb2bc9663a8c1757a34
affected

94a7ad9283464b75b12516c5512541d467cefcf8 before f83ac8d30c43fd902af7c84c480f216157b60ef0
affected

8c0ee15d9a102c732d0745566d254040085d5663
affected

5edc3604151919da8da0fb092b71d7dce07d848a
affected

9c7fba9503b826f0c061d136f8f0c9f953ed18b9
affected

54f259906039dbfe46c550011409fa16f72370f6
affected

ccb5392c4fea0e7d9f7ab35567e839d74cb3998b
affected

Default status
affected

6.2
affected

Any version before 6.2
unaffected

5.10.239
unaffected

5.15.186
unaffected

6.1.142
unaffected

6.6.95
unaffected

6.12.35
unaffected

6.15.4
unaffected

6.16-rc1
unaffected

References

git.kernel.org/...c/635cea4f44c1ddae208666772c164eab5a6bce39

git.kernel.org/...c/89b5ab822bf69867c3951dd0eb34b0314c38966b

git.kernel.org/...c/5d89aa42534723400fefd46e26e053b9c382b4ee

git.kernel.org/...c/f6b1b0f8ba0b61d8b511df5649d57235f230c135

git.kernel.org/...c/00da1c767a6567e56f23dda586847586868ac064

git.kernel.org/...c/c56398885716d97ee9bcadb2bc9663a8c1757a34

git.kernel.org/...c/f83ac8d30c43fd902af7c84c480f216157b60ef0

cve.org (CVE-2025-38226)

nvd.nist.gov (CVE-2025-38226)

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