CVEvulnerability
CVE-2026-43269
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-05-06
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
Description
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
Affected configurations
• linux linux kernel (>= 4.1 < 5.10.252)
• linux linux kernel (>= 5.11 < 5.15.202)
• linux linux kernel (>= 5.16 < 6.1.165)
• linux linux kernel (>= 6.2 < 6.6.128)
• linux linux kernel (>= 6.7 < 6.12.75)
• linux linux kernel (>= 6.13 < 6.18.16)
• linux linux kernel (>= 6.19 < 6.19.6)
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/082271e364a3205598c2e4e6233a9f49ce7941cf Patch
- https://git.kernel.org/stable/c/25e832a7830740e72103eb0b527680a4b64bbcb3 Patch
- https://git.kernel.org/stable/c/3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489 Patch
- https://git.kernel.org/stable/c/5718d98976ad6b9700e5a6afec67fc47a8a92580 Patch
- https://git.kernel.org/stable/c/57fa3487acfa3467405f8506b94682abd96e7393 Patch
- https://git.kernel.org/stable/c/6d4e91ab97fda64e8cf9c8881cc3b4da026bd849 Patch
- https://git.kernel.org/stable/c/ec40702029b08ee8d5f5b03303d64a10e74a957b Patch
- https://git.kernel.org/stable/c/f12352471061df83a36edf54bbb16284793284e4 Patch