CVE-2026-89609
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux
PublishedSep 11, 2026
First seenSep 11, 2026
How to fix
Update
- Linux Linux64d8998e36cfd2bb7114f3af0aa51c5a559a39b3, 4d50b8aea11ad9594c8704a4c647e11311ab7b19, 956541efd125a10442f9514668bc5c852702c93b, ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a, 7e48afafe7abc275f7b6916613bb18b821e7d94a, 0d9636ecba34bd553ecf19049f7705505aea62fd, 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31, 779972513c2fa8c7938e54976f686091dafff22f or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 64d8998e36cfd2bb7114f3af0aa51c5a559a39b3, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 4d50b8aea11ad9594c8704a4c647e11311ab7b19, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 956541efd125a10442f9514668bc5c852702c93b, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 7e48afafe7abc275f7b6916613bb18b821e7d94a, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 0d9636ecba34bd553ecf19049f7705505aea62fd, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31, f66e883eb6186bc43a79581b67aff7d1a69d0ff1 ≤ v < 779972513c2fa8c7938e54976f686091dafff22f, 2.6.26 | 64d8998e36cfd2bb7114f3af0aa51c5a559a39b3, 4d50b8aea11ad9594c8704a4c647e11311ab7b19, 956541efd125a10442f9514668bc5c852702c93b, ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a, 7e48afafe7abc275f7b6916613bb18b821e7d94a, 0d9636ecba34bd553ecf19049f7705505aea62fd, 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31, 779972513c2fa8c7938e54976f686091dafff22f |
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