5.5

CVE-2025-71292

jfs: nlink overflow in jfs_rename

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

jfs: nlink overflow in jfs_rename

If nlink is maximal for a directory (-1) and inside that directory you
perform a rename for some child directory (not moving from the parent),
then the nlink of the first directory is first incremented and later
decremented. Normally this is fine, but when nlink = -1 this causes a
wrap around to 0, and then drop_nlink issues a warning.

After applying the patch syzbot no longer issues any warnings. I also
ran some basic fs tests to look for any regressions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.12.1 < 5.10.252
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.202
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.165
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.16
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.6
Linux ≫ Linux Kernel Version2.6.12 Update-
Linux ≫ Linux Kernel Version2.6.12 Updaterc2
Linux ≫ Linux Kernel Version2.6.12 Updaterc3
Linux ≫ Linux Kernel Version2.6.12 Updaterc4
Linux ≫ Linux Kernel Version2.6.12 Updaterc5
Linux ≫ Linux Kernel Version2.6.12 Updaterc6
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.01% 0.023
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
Es wurden noch keine Informationen zu CWE veröffentlicht.