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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-43269

drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback

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Status
Published
Published
Updated
Assigning organization
Linux

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 6d4e91ab97fda64e8cf9c8881cc3b4da026bd849affected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 5718d98976ad6b9700e5a6afec67fc47a8a92580affected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 57fa3487acfa3467405f8506b94682abd96e7393affected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < ec40702029b08ee8d5f5b03303d64a10e74a957baffected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 25e832a7830740e72103eb0b527680a4b64bbcb3affected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 082271e364a3205598c2e4e6233a9f49ce7941cfaffected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < 3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489affected
  • 2389fc1305fc1e2cf8b310a75463fefd3058bf48 to < f12352471061df83a36edf54bbb16284793284e4affected

Linux Linux

Default version status: affected

  • 4.1affected
  • 0 to < 4.1unaffected
  • 5.10.252 to ≤ 5.10.*unaffected
  • 5.15.202 to ≤ 5.15.*unaffected
  • 6.1.165 to ≤ 6.1.*unaffected
  • 6.6.128 to ≤ 6.6.*unaffected
  • 6.12.75 to ≤ 6.12.*unaffected
  • 6.18.16 to ≤ 6.18.*unaffected
  • 6.19.6 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References