CVE-2025-37839

NameCVE-2025-37839
DescriptionIn the Linux kernel, the following vulnerability has been resolved: jbd2: remove wrong sb->s_sequence check Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4178-1, DLA-4193-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.237-1fixed
bookworm6.1.137-1fixed
bookworm (security)6.1.140-1fixed
trixie6.12.27-1fixed
sid6.12.30-1fixed
linux-6.1 (PTS)bullseye (security)6.1.137-1~deb11u1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.237-1DLA-4178-1
linuxsourcebookworm6.1.135-1
linuxsource(unstable)6.12.25-1
linux-6.1sourcebullseye6.1.137-1~deb11u1DLA-4193-1

Notes

https://git.kernel.org/linus/e6eff39dd0fe4190c6146069cc16d160e71d1148 (6.15-rc1)

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