5.5

CVE-2025-38659

gfs2: No more self recovery

In the Linux kernel, the following vulnerability has been resolved:

gfs2: No more self recovery

When a node withdraws and it turns out that it is the only node that has
the filesystem mounted, gfs2 currently tries to replay the local journal
to bring the filesystem back into a consistent state.  Not only is that
a very bad idea, it has also never worked because gfs2_recover_func()
will refuse to do anything during a withdraw.

However, before even getting to this point, gfs2_recover_func()
dereferences sdp->sd_jdesc->jd_inode.  This was a use-after-free before
commit 04133b607a78 ("gfs2: Prevent double iput for journal on error")
and is a NULL pointer dereference since then.

Simply get rid of self recovery to fix that.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.7 < 6.6.102
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.42
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.10
Linux ≫ Linux Kernel Version >= 6.16 < 6.16.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.039
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/1a91ba12abef628b43cada87478328274d988e88
Patch
https://git.kernel.org/stable/c/f5426ffbec971a8f7346a57392d3a901bdee5a9b
Patch
https://git.kernel.org/stable/c/6784367b2f3cd7b89103de35764f37f152590dbd
Patch
https://git.kernel.org/stable/c/97c94c7dbddc34d353c83b541b3decabf98d04af
Patch
https://git.kernel.org/stable/c/deb016c1669002e48c431d6fd32ea1c20ef41756
Patch
https://git.kernel.org/stable/c/6ebe17b359bead383581f729e43f591c1c36e159
https://git.kernel.org/stable/c/69cf5699a402ee7ae1be53954dc2ae652c0a053c