Unknown

CVE-2026-89896 — media: cedrus: fix memory leak in cedrus_init_ctrls()

In the Linux kernel, the following vulnerability has been resolved: media: cedrus: fix memory leak in cedrus_init_ctrls() In cedrus_init_ctrls(), the V4L2 control handler is initialized before allocating memory for ctx->ctrls. If this allocation fails, the function returns -ENOMEM without freeing the previously allocated handler resources, leading to a memory leak. Fix this by calling v4l2_ctrl_handler_free() on the ctx->ctrls allocation failure path. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1.1. An x86_64 allyesconfig build showed no new warnings. As we do not have an Allwinner SoC or board with a Cedrus VPU available to test with, no runtime testing was able to be performed.

Published Sep 16, 2026 · Updated Oct 19, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.21%

ahead of 11% of scored CVEs · Oct 20, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 6fabacc3b79a528450aef4c32464da2ec681049e≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 729a1ffab968b3c493f61d1cd683f5bafec500ea≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < ce5693b6e3a693fcdc3800af309363f6250104c8≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 22441be29ec27c693f40c1ef499093275ef529d1≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 79fd0b0161506fc9507bf7a6fe4c975a857a5be8≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < f78cf36cabf911da348ea80e4e9f430d74f6905c≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 81aa608ac3a56cdd4aab0bd12442ed529a24ba31≥ 50e761516f2b8c0cdeb31a8c6ca1b4ef98cd13f1 and < 9df2fbe563194da1967a5db083442186c1323efe and 1 more version 4.20	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 20, 2026 · 5 reading(s) · max 0.21%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 16, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× References added · Oct 19, 2026 – Oct 19, 2026
1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

10 on the record

git.kernel.org/stable/c/ce5693b6e3a693fcdc3800af309363f6250104c8
NIST National Vulnerability Database
nvd.nist.gov/vuln/detail/CVE-2026-89896
GitHub Security Advisories
git.kernel.org/stable/c/79fd0b0161506fc9507bf7a6fe4c975a857a5be8
NIST National Vulnerability Database
git.kernel.org/stable/c/9df2fbe563194da1967a5db083442186c1323efe
NIST National Vulnerability Database
git.kernel.org/stable/c/22441be29ec27c693f40c1ef499093275ef529d1
NIST National Vulnerability Database
git.kernel.org/stable/c/729a1ffab968b3c493f61d1cd683f5bafec500ea
NIST National Vulnerability Database
git.kernel.org/stable/c/f78cf36cabf911da348ea80e4e9f430d74f6905c
NIST National Vulnerability Database
git.kernel.org/stable/c/81aa608ac3a56cdd4aab0bd12442ed529a24ba31
NIST National Vulnerability Database
github.com/advisories/GHSA-832p-ggr6-5385
GitHub Security Advisories
git.kernel.org/stable/c/6fabacc3b79a528450aef4c32464da2ec681049e
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Unknown CVE-2026-98866 sched/cache: Introduce task_struct->sched_cache_grp to fix UAF 2d
Unknown CVE-2026-98867 dm-pcache: bound the logical key offset from persistent memory 2d
Unknown CVE-2026-98868 dm-pcache: reject a kset that overruns its segment 2d
Unknown CVE-2026-98856 kprobes: Skip disarmed probes when checking optkprobe overlap 2d
Unknown CVE-2026-98857 ipvs: bound LBLCR and LBLC cache growth 2d
Unknown CVE-2026-98858 io_uring: fix task_work add use-after-free with SQPOLL 2d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-89896 is "media: cedrus: fix memory leak in cedrus_init_ctrls()", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.21% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

Comments

Moderated technical discussion. Read the community guidelines.

No comments yet.