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Description

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and gdlm_bast(). To prevent it from dereferencing freed glock objects, only free the glock if the lockspace has actually been released.

PUBLISHED Reserved 2025-04-16 | Published 2025-12-04 | Updated 2025-12-04 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 279bde3bbb0ac0bad5c729dfa85983d75a5d7641
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 64c61b4ac645222fa7b724cef616c1f862a72a40
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 28c4d9bc0708956c1a736a9e49fee71b65deee81
affected

Default status
affected

6.12.56 (semver)
unaffected

6.17.6 (semver)
unaffected

6.18 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/279bde3bbb0ac0bad5c729dfa85983d75a5d7641

git.kernel.org/...c/64c61b4ac645222fa7b724cef616c1f862a72a40

git.kernel.org/...c/28c4d9bc0708956c1a736a9e49fee71b65deee81

cve.org (CVE-2025-40242)

nvd.nist.gov (CVE-2025-40242)