CVE-2026-89609high

CVE-2026-89609: high-severity vulnerability in Linux

ecryptfs: hold msg ctx list lock when cleaning daemon queue

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/0d9636ecba34bd553ecf19049f7705505aea62fdhttps://git.kernel.org/stable/c/4c02acbe0a2692ca9991c51e62bbe6d6b59dac31https://git.kernel.org/stable/c/4d50b8aea11ad9594c8704a4c647e11311ab7b19https://git.kernel.org/stable/c/64d8998e36cfd2bb7114f3af0aa51c5a559a39b3https://git.kernel.org/stable/c/779972513c2fa8c7938e54976f686091dafff22fhttps://git.kernel.org/stable/c/7e48afafe7abc275f7b6916613bb18b821e7d94ahttps://git.kernel.org/stable/c/956541efd125a10442f9514668bc5c852702c93bhttps://git.kernel.org/stable/c/ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a