CVE-2025-68168 | THREATINT

Description

In the Linux kernel, the following vulnerability has been resolved: jfs: fix uninitialized waitqueue in transaction manager The transaction manager initialization in txInit() was not properly initializing TxBlock[0].waitor waitqueue, causing a crash when txEnd(0) is called on read-only filesystems. When a filesystem is mounted read-only, txBegin() returns tid=0 to indicate no transaction. However, txEnd(0) still gets called and tries to access TxBlock[0].waitor via tid_to_tblock(0), but this waitqueue was never initialized because the initialization loop started at index 1 instead of 0. This causes a 'non-static key' lockdep warning and system crash: INFO: trying to register non-static key in txEnd Fix by ensuring all transaction blocks including TxBlock[0] have their waitqueues properly initialized during txInit().

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

Product status

Default status

unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 8cae9cf23e0bd424ac904e753639a587543ce03a

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before a2aa97cde9857f881920635a2e3d3b11769619c5

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d2dd7ca05a11685c314e62802a55e8d67a90e974

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 2a9575a372182ca075070b3cd77490dcf0c951e7

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before cbf2f527ae4ca7c7dabce42e85e8deb58588a37e

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 038861414ab383b41dd35abbf9ff0ef715592d53

affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 300b072df72694ea330c4c673c035253e07827b8

affected

Default status

affected

5.4.302 (semver)

unaffected

5.10.247 (semver)

unaffected

5.15.197 (semver)

unaffected

6.1.159 (semver)

unaffected

6.6.117 (semver)

unaffected

6.12.58 (semver)

unaffected

6.17.8 (semver)

unaffected

6.18 (original_commit_for_fix)

unaffected

References

git.kernel.org/...c/d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64

git.kernel.org/...c/8cae9cf23e0bd424ac904e753639a587543ce03a

git.kernel.org/...c/a2aa97cde9857f881920635a2e3d3b11769619c5

git.kernel.org/...c/d2dd7ca05a11685c314e62802a55e8d67a90e974

git.kernel.org/...c/2a9575a372182ca075070b3cd77490dcf0c951e7

git.kernel.org/...c/cbf2f527ae4ca7c7dabce42e85e8deb58588a37e

git.kernel.org/...c/038861414ab383b41dd35abbf9ff0ef715592d53

git.kernel.org/...c/300b072df72694ea330c4c673c035253e07827b8

cve.org (CVE-2025-68168)

nvd.nist.gov (CVE-2025-68168)

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