VulnerAlert



LINUX
17-07-2025 23:22

CVE-2025-38226 Vulnerabilidad documentada

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Tags
#test
#print
#kernel
#drive
#debian
#change
#add
#linux
#vulnerability
#execute
#bug
Descripción
In the Linux kernel, following vulnerability has been resolved: media: vivid: Change siize of 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: tpg_fill_plane_buffer+0x1a9c/0x5af0 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705 Write size 1440 at addr ffffc9000d0ffda0 by task vivid-000-vid-c/5304 CPU: 0 UID: 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: __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 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 drivers/media/common/v4l2-tpg/v4l2-tpg-core.c:2705 vivid_fillbuff drivers/media/test-drivers/vivid/vivid-kthread-cap.c:470 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 The composition cannot be larger than fmt_cap_rect. So execute v4l2_rect_map_inside() even if has_compose_cap == 0.
https://git.kernel.org/stable/c/00da1c767a6567e56f23dda586847586868ac064
https://git.kernel.org/stable/c/57597d8db5bbda618ba2145b7e8a7e6f01b6a27e
https://git.kernel.org/stable/c/5d89aa42534723400fefd46e26e053b9c382b4ee
https://git.kernel.org/stable/c/635cea4f44c1ddae208666772c164eab5a6bce39
https://git.kernel.org/stable/c/89b5ab822bf69867c3951dd0eb34b0314c38966b
https://git.kernel.org/stable/c/c56398885716d97ee9bcadb2bc9663a8c1757a34
https://git.kernel.org/stable/c/f6b1b0f8ba0b61d8b511df5649d57235f230c135
https://git.kernel.org/stable/c/f83ac8d30c43fd902af7c84c480f216157b60ef0
Referencia
Link externo
Ver detalles

Fuente
https://nvd.nist.gov/vuln/detail/CVE-2025-38226
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