5.5

CVE-2025-38467: drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling

Analyzed
AliasesUBUNTU-CVE-2025-38467DEBIAN-CVE-2025-38467
Published 25-07-2025Last modified 11-05-2026

Vulnerability summary

CVE-2025-38467 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.20%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 53 · Related 47
DLA-4327-1DLA-4328-1DSA-5973-1DSA-5975-1MGASA-2025-0218MGASA-2025-0219

Timeline

  1. 25-07-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling If there's support for another console device (such as a TTY serial), the kernel occasionally panics during boot. The panic message and a relevant snippet of the call stack is as follows: Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Call trace: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 [...] Otherwise, the panics don't happen. This indicates that it's some sort of race condition. Add a check to validate if the drm device can handle vblanks before calling drm_crtc_handle_vblank() to avoid this.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

Increase +0.03 pp

From 0.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu147 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
  • linux< 6.1.147-1 | < 6.12.41-1 | < 6.16.3-1
  • debian_linuxEOL11.0
Linux2 products
  • linux≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7 | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < a2130463fc9451005660b0eda7b61d5f746f7d74 | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 87825fbd1e176cd5b896940f3959e7c9a916945d | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < a40a35166f7e4f6dcd4b087d620c8228922dcb0a | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 391e5ea5b877230b844c9bd8bbcd91b681b1ce2d | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < e9d9b25f376737b81f06de9c5aa422b488f47184 | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 996740652e620ef8ee1e5c65832cf2ffa498577d | ≥ 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < b846350aa272de99bf6fecfa6b08e64ebfb13173 | 4.0
  • linux_kernel≥ 4.0, < 5.4.296 | ≥ 5.5, < 5.10.240 | ≥ 5.11, < 5.15.189 | ≥ 5.16, < 6.1.146 | ≥ 6.2, < 6.6.99 | ≥ 6.7, < 6.12.39 | ≥ 6.13, < 6.15.7 | 6.16:rc1 | 6.16:rc2 | 6.16:rc3 | 6.16:rc4

3 vendors · 151 products

References

46 links
Show all 46 references