CVE-2026-43269 (GCVE-0-2026-43269)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-11 22:21
VLAI
Title
drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback After several commits, the slab memory increases. Some drm_crtc_commit objects are not freed. The atomic_destroy_state callback only put the framebuffer. Use the __drm_atomic_helper_plane_destroy_state() function to put all the objects that are no longer needed. It has been seen after hours of usage of a graphics application or using kmemleak: unreferenced object 0xc63a6580 (size 64): comm "egt_basic", pid 171, jiffies 4294940784 hex dump (first 32 bytes): 40 50 34 c5 01 00 00 00 ff ff ff ff 8c 65 3a c6 @P4..........e:. 8c 65 3a c6 ff ff ff ff 98 65 3a c6 98 65 3a c6 .e:......e:..e:. backtrace (crc c25aa925): kmemleak_alloc+0x34/0x3c __kmalloc_cache_noprof+0x150/0x1a4 drm_atomic_helper_setup_commit+0x1e8/0x7bc drm_atomic_helper_commit+0x3c/0x15c drm_atomic_commit+0xc0/0xf4 drm_atomic_helper_set_config+0x84/0xb8 drm_mode_setcrtc+0x32c/0x810 drm_ioctl+0x20c/0x488 sys_ioctl+0x14c/0xc20 ret_fast_syscall+0x0/0x54
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 6d4e91ab97fda64e8cf9c8881cc3b4da026bd849 (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 5718d98976ad6b9700e5a6afec67fc47a8a92580 (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 57fa3487acfa3467405f8506b94682abd96e7393 (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < ec40702029b08ee8d5f5b03303d64a10e74a957b (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 25e832a7830740e72103eb0b527680a4b64bbcb3 (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 082271e364a3205598c2e4e6233a9f49ce7941cf (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < 3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489 (git)
Affected: 2389fc1305fc1e2cf8b310a75463fefd3058bf48 , < f12352471061df83a36edf54bbb16284793284e4 (git)
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Linux Linux Affected: 4.1
Unaffected: 0 , < 4.1 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.