CVE-2026-43269: Linux kernel · drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 12 Nov 2026, 00:50 UTC
Rated Low by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
AI-suggested
A fix has been implemented in the Linux kernel to address this memory leak by improving the cleanup process in the atomic_destroy_state callback. Users should update to the fixed kernel version once available. No other mitigation steps are indicated.
Description
A memory leak vulnerability was identified and fixed in the Linux kernel's drm/atmel-hlcdc driver. The issue involved the atomic_destroy_state callback not properly freeing all drm_crtc_commit objects, causing slab memory to increase over time during graphics application usage. The fix involved using the __drm_atomic_helper_plane_destroy_state() function to release all unneeded objects.
References
- git.kernel.org/stable/c/6d4e91ab97fda64e8cf9c8881cc3b4da026bd849 (opens in a new tab)
- git.kernel.org/stable/c/5718d98976ad6b9700e5a6afec67fc47a8a92580 (opens in a new tab)
- git.kernel.org/stable/c/57fa3487acfa3467405f8506b94682abd96e7393 (opens in a new tab)
- git.kernel.org/stable/c/ec40702029b08ee8d5f5b03303d64a10e74a957b (opens in a new tab)
- git.kernel.org/stable/c/25e832a7830740e72103eb0b527680a4b64bbcb3 (opens in a new tab)
- git.kernel.org/stable/c/082271e364a3205598c2e4e6233a9f49ce7941cf (opens in a new tab)
- git.kernel.org/stable/c/3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489 (opens in a new tab)
- git.kernel.org/stable/c/f12352471061df83a36edf54bbb16284793284e4 (opens in a new tab)