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CVE-2026-89609

ecryptfs: hold msg ctx list lock when cleaning daemon queue

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 64d8998e36cfd2bb7114f3af0aa51c5a559a39b3; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 4d50b8aea11ad9594c8704a4c647e11311ab7b19; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 956541efd125a10442f9514668bc5c852702c93b; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 7e48afafe7abc275f7b6916613bb18b821e7d94a; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 0d9636ecba34bd553ecf19049f7705505aea62fd; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 4c02acbe0a2692ca9991c51e62bbe6d6b59dac31; From f66e883eb6186bc43a79581b67aff7d1a69d0ff1 · fixed in 779972513c2fa8c7938e54976f686091dafff22f

  • Linux Linux

    2.6.26

  • KernelLinux

    From 2.6.26 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.109; From 6.13.0 · fixed in 6.18.50; From 6.19.0 · fixed in 7.2.4

References 8

git.kernel.org