High 7.8Published Dec 16, 2025

CVE-2025-68168jfs: fix uninitialized waitqueue in transaction manager

Updated under an hour ago (Oct 28, 2026, 8:10 AM ET)

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Exploited in the last 30 days

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().

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5 before d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64; from 5c094ca994824e038b6a97835ded4e5d1d808504 before 8cae9cf23e0bd424ac904e753639a587543ce03a; from 2febd5f81e4bfba61d9f374dcca628aff374cc56 before a2aa97cde9857f881920635a2e3d3b11769619c5; from aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c before d2dd7ca05a11685c314e62802a55e8d67a90e974; 95e2b352c03b0a86c5717ba1d24ea20969abcacc builds before 2a9575a372182ca075070b3cd77490dcf0c951e7; from 95e2b352c03b0a86c5717ba1d24ea20969abcacc before cbf2f527ae4ca7c7dabce42e85e8deb58588a37e; from 95e2b352c03b0a86c5717ba1d24ea20969abcacc before 038861414ab383b41dd35abbf9ff0ef715592d53; from 95e2b352c03b0a86c5717ba1d24ea20969abcacc before 300b072df72694ea330c4c673c035253e07827b8; and 10 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64
https://git.kernel.org/stable/c/8cae9cf23e0bd424ac904e753639a587543ce03a
https://git.kernel.org/stable/c/a2aa97cde9857f881920635a2e3d3b11769619c5
https://git.kernel.org/stable/c/d2dd7ca05a11685c314e62802a55e8d67a90e974
https://git.kernel.org/stable/c/2a9575a372182ca075070b3cd77490dcf0c951e7
https://git.kernel.org/stable/c/cbf2f527ae4ca7c7dabce42e85e8deb58588a37e
https://git.kernel.org/stable/c/038861414ab383b41dd35abbf9ff0ef715592d53
https://git.kernel.org/stable/c/300b072df72694ea330c4c673c035253e07827b8

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.