ecryptfs: hold msg ctx list lock when cleaning daemon queue (CVE-2026-89609) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89609

ecryptfs: hold msg ctx list lock when cleaning daemon queue

Answer in brief

CVE-2026-89609 records a Unknown severity vulnerability in ecryptfs: hold msg ctx list lock when cleaning daemon queue. 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 11, 2026Updated Sep 11, 2026Source checked Sep 11, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 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	>=f66e883eb6186bc43a79581b67aff7d1a69d0ff1 <7e48afafe7abc275f7b6916613bb18b821e7d94a \|\| >=f66e883eb6186bc43a79581b67aff7d1a69d0ff1 <0d9636ecba34bd553ecf19049f7705505aea62fd \|\| >=f66e883eb6186bc43a79581b67aff7d1a69d0ff1 <4c02acbe0a2692ca9991c51e62bbe6d6b59dac31 \|\| >=f66e883eb6186bc43a79581b67aff7d1a69d0ff1 <779972513c2fa8c7938e54976f686091dafff22f	7e48afafe7abc275f7b6916613bb18b821e7d94a, 0d9636ecba34bd553ecf19049f7705505aea62fd, 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31, 779972513c2fa8c7938e54976f686091dafff22f
Linux/Linuxgeneric	2.6.26	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 7e48afafe7abc275f7b6916613bb18b821e7d94a if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 11, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfs_exorcise_daemon() drops queued messages from a dying daemon without holding ecryptfs_msg_ctx_lists_mux, but ecryptfs_msg_ctx_alloc_to_free() requires that lock. Take the list lock while moving the queued contexts back to the free list to avoid racing with other global msg ctx list users.

Quoted source text, attributed separately from HOL analysis.