7.8

CVE-2025-68168: linux

CVSS: 7.8v3.1HighDeferred
AliasesUBUNTU-CVE-2025-68168DEBIAN-CVE-2025-68168
Published 16-12-2025Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2025-68168 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.1% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 36 · Related 33
DLA-4436-1MGASA-2026-0017MGASA-2026-0018SUSE-SU-2026:0278-1SUSE-SU-2026:0281-1SUSE-SU-2026:0293-1

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

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().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

0.00 pp

From 0.15% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu149 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-106.106 | < 6.17.0-14.14
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1050.53 | < 6.17.0-1007.7
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.8-1
Linux1 product
  • linux≥ 2a8807f9f511c64de0c7cc9900a1683e3d72a3e5, < d6af7fce2e162ac68e85d3a11eb6ac8c35b24b64 | ≥ 5c094ca994824e038b6a97835ded4e5d1d808504, < 8cae9cf23e0bd424ac904e753639a587543ce03a | ≥ 2febd5f81e4bfba61d9f374dcca628aff374cc56, < a2aa97cde9857f881920635a2e3d3b11769619c5 | ≥ aa7cdf487ab3fa47284daaccc3d7d5de01c6a84c, < d2dd7ca05a11685c314e62802a55e8d67a90e974 | ≥ 95e2b352c03b0a86c5717ba1d24ea20969abcacc, < 2a9575a372182ca075070b3cd77490dcf0c951e7 | ≥ 95e2b352c03b0a86c5717ba1d24ea20969abcacc, < cbf2f527ae4ca7c7dabce42e85e8deb58588a37e | ≥ 95e2b352c03b0a86c5717ba1d24ea20969abcacc, < 038861414ab383b41dd35abbf9ff0ef715592d53 | ≥ 95e2b352c03b0a86c5717ba1d24ea20969abcacc, < 300b072df72694ea330c4c673c035253e07827b8 | a88efca805bea93cea9187dfd00835aa7093bf1b | 97c1f26e4d4af55e8584e4646dd5c5fa7baf62c7 | b0ed8ed0428ee96092da6fefa5cfacbe4abed701 | ≥ 5.4.255, < 5.4.302 | ≥ 5.10.192, < 5.10.247 | ≥ 5.15.123, < 5.15.197 | ≥ 6.1.42, < 6.1.159 | ≥ 4.14.324, < 4.15 | ≥ 4.19.293, < 4.20 | ≥ 6.4.7, < 6.5 | 6.5

3 vendors · 151 products

References

37 links
Show all 37 references