media: bcm2835-unicam: Fix asc leaked in error/remove path (CVE-2026-93071) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-93071

media: bcm2835-unicam: Fix asc leaked in error/remove path

Answer in brief

CVE-2026-93071 records a Unknown severity vulnerability in media: bcm2835-unicam: Fix asc leaked in error/remove path. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=392cd78d495f36c201eb5cc425b01017d493e094 <5479372db364c80bb6bd59f640f5c31de3984bab \|\| >=392cd78d495f36c201eb5cc425b01017d493e094 <2c29cd408ef86e695acb2a5d4e00fa2f5695368d \|\| >=392cd78d495f36c201eb5cc425b01017d493e094 <de9be39cefda1ecd762e6a913665c01f7bb18100 \|\| >=392cd78d495f36c201eb5cc425b01017d493e094 <253c9659e25131b0169f718e7d094ac1aa0d9279	5479372db364c80bb6bd59f640f5c31de3984bab, 2c29cd408ef86e695acb2a5d4e00fa2f5695368d, de9be39cefda1ecd762e6a913665c01f7bb18100, 253c9659e25131b0169f718e7d094ac1aa0d9279
Linux/Linuxgeneric	6.10	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 5479372db364c80bb6bd59f640f5c31de3984bab if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source 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

Quoted source text, attributed separately from HOL analysis.