7.8

CVE-2025-38226: debian debian_linux Out-of-bounds Write

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2025-38226DEBIAN-CVE-2025-38226
Published 04-07-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-38226 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 53 · Related 47
DLA-4327-1DLA-4328-1DSA-5973-1LSN-0122-1MGASA-2025-0218MGASA-2025-0219

Timeline

  1. 04-07-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

+0.02 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu145 products
  • linuxAll versions (No fix recorded) | < 5.15.0-156.166 | < 6.8.0-100.100
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1092.99 | < 6.8.0-1046.49
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ 54f259906039dbfe46c550011409fa16f72370f6, < 57597d8db5bbda618ba2145b7e8a7e6f01b6a27e | ≥ f9d19f3a044ca651b0be52a4bf951ffe74259b9f, < 635cea4f44c1ddae208666772c164eab5a6bce39 | ≥ ab54081a2843aefb837812fac5488cc8f1696142, < 89b5ab822bf69867c3951dd0eb34b0314c38966b | ≥ 2f558c5208b0f70c8140e08ce09fcc84da48e789, < 5d89aa42534723400fefd46e26e053b9c382b4ee | ≥ 94a7ad9283464b75b12516c5512541d467cefcf8, < f6b1b0f8ba0b61d8b511df5649d57235f230c135 | ≥ 94a7ad9283464b75b12516c5512541d467cefcf8, < 00da1c767a6567e56f23dda586847586868ac064 | ≥ 94a7ad9283464b75b12516c5512541d467cefcf8, < c56398885716d97ee9bcadb2bc9663a8c1757a34 | ≥ 94a7ad9283464b75b12516c5512541d467cefcf8, < f83ac8d30c43fd902af7c84c480f216157b60ef0 | 8c0ee15d9a102c732d0745566d254040085d5663 | 5edc3604151919da8da0fb092b71d7dce07d848a | 9c7fba9503b826f0c061d136f8f0c9f953ed18b9 | ccb5392c4fea0e7d9f7ab35567e839d74cb3998b | ≥ 5.4.229, < 5.4.296 | ≥ 5.10.163, < 5.10.239 | ≥ 5.15.86, < 5.15.186 | ≥ 6.1.2, < 6.1.142 | ≥ 4.9.337, < 4.10 | ≥ 4.14.303, < 4.15 | ≥ 4.19.270, < 4.20 | ≥ 6.0.16, < 6.1 | 6.2
  • linux_kernel≥ 4.9.337, < 4.10 | ≥ 4.14.303, < 4.15 | ≥ 4.19.270, < 4.20 | ≥ 5.4.229, < 5.4.296 | ≥ 5.10.163, < 5.10.239 | ≥ 5.15.86, < 5.15.186 | ≥ 6.0.16, < 6.1 | ≥ 6.1.2, < 6.1.142 | ≥ 6.2, < 6.6.95 | ≥ 6.7, < 6.12.35 | ≥ 6.13, < 6.15.4

3 vendors · 149 products

References

46 links
Show all 46 references