CVEvulnerability
CVE-2026-93071
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
media: bcm2835-unicam: Fix asc leaked in error/remove path
v4l2_async_nf_add_fwnode_remote() allocates the asc, which is freed when
v4l2_async_nf_cleanup() is called.
Call v4l2_async_nf_cleanup() properly in the driver paths.
Discovered with kmemleak after rmmod:
unreferenced object 0xffff000084526b80 (size 64):
comm "modprobe", pid 185, jiffies 4295013512
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 e8 0d ff bf 00 00 ff ff ................
40 83 bc 84 00 00 ff ff 60 83 bc 84 00 00 ff ff @.......`.......
backtrace (crc ac584083):
[<00000000ffb081a7>] kmemleak_alloc+0x38/0x44
[<00000000d2fd9301>] __kmalloc+0x1b0/0x250
[<000000004dd5354d>] __v4l2_async_nf_add_fwnode+0x28/0x9c
[<0000000067587657>] __v4l2_async_nf_add_fwnode_remote+0x3c/0x64
References
- https://git.kernel.org/stable/c/253c9659e25131b0169f718e7d094ac1aa0d9279 git.kernel.org
- https://git.kernel.org/stable/c/2c29cd408ef86e695acb2a5d4e00fa2f5695368d git.kernel.org
- https://git.kernel.org/stable/c/5479372db364c80bb6bd59f640f5c31de3984bab git.kernel.org
- https://git.kernel.org/stable/c/de9be39cefda1ecd762e6a913665c01f7bb18100 git.kernel.org