UBUNTU-CVE-2026-93071: Medium severity ubuntu/linux-hwe-edge vulnerability
In the Linux kernel, the following vulnerability has been resolved: media: bcm2835-unicam: Fix asc leaked in error/remove path v4l2asyncnfaddfwnoderemote() allocates the asc, which is freed when v4l2asyncnfcleanup() is called. Call v4l2asyncnfcleanup() 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>] kmemleakalloc+0x38/0x44 [<00000000d2fd9301>] kmalloc+0x1b0/0x250 [<000000004dd5354d>] v4l2asyncnfaddfwnode+0x28/0x9c [<0000000067587657>] v4l2asyncnfaddfwnoderemote+0x3c/0x64
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
In the bcm2835-unicam driver, call v4l2_async_nf_cleanup() properly in the error and remove paths to free the asc allocated by v4l2_async_nf_add_fwnode_remote().