CVE-2026-89609

ecryptfs: hold msg ctx list lock when cleaning daemon queue

State: Published
Severity: 7.8 High
Published: Sep 11, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 64d8998e36cfd2bb7114f3af0aa51c5a559a39b3Affected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 4d50b8aea11ad9594c8704a4c647e11311ab7b19Affected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 956541efd125a10442f9514668bc5c852702c93bAffected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6aAffected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 7e48afafe7abc275f7b6916613bb18b821e7d94aAffected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 0d9636ecba34bd553ecf19049f7705505aea62fdAffected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31Affected f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 779972513c2fa8c7938e54976f686091dafff22fAffected
LinuxLinux	2.6.26Affected before 2.6.26Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.109 through 6.12.Not affected 6.18.50 through 6.18.Not affected 7.2.4 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 64d8998e36cfd2bb7114f3af0aa51c5a559a39b3Affected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 4d50b8aea11ad9594c8704a4c647e11311ab7b19Affected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 956541efd125a10442f9514668bc5c852702c93bAffected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6aAffected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 7e48afafe7abc275f7b6916613bb18b821e7d94aAffected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 0d9636ecba34bd553ecf19049f7705505aea62fdAffected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31Affected
f66e883eb6186bc43a79581b67aff7d1a69d0ff1 to before 779972513c2fa8c7938e54976f686091dafff22fAffected

LinuxLinux

2.6.26Affected
before 2.6.26Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.109 through 6.12.*Not affected
6.18.50 through 6.18.*Not affected
7.2.4 through 7.2.*Not affected
7.3 and laterNot affected

References

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