5.5

CVE-2025-38382

btrfs: fix iteration of extrefs during log replay

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

btrfs: fix iteration of extrefs during log replay

At __inode_add_ref() when processing extrefs, if we jump into the next
label we have an undefined value of victim_name.len, since we haven't
initialized it before we did the goto. This results in an invalid memory
access in the next iteration of the loop since victim_name.len was not
initialized to the length of the name of the current extref.

Fix this by initializing victim_name.len with the current extref's name
length.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.57 < 6.1.144
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.97
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.37
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.6
Linux ≫ Linux Kernel Version6.16 Updaterc1
Linux ≫ Linux Kernel Version6.16 Updaterc2
Linux ≫ Linux Kernel Version6.16 Updaterc3
Linux ≫ Linux Kernel Version6.16 Updaterc4
Debian ≫ Debian Linux Version11.0
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.051
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-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

https://git.kernel.org/stable/c/2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171
Patch
https://git.kernel.org/stable/c/539969fc472886a1d63565459514d47e27fef461
Patch
https://git.kernel.org/stable/c/54a7081ed168b72a8a2d6ef4ba3a1259705a2926
Patch
https://git.kernel.org/stable/c/7ac790dc2ba00499a8d671d4a24de4d4ad27e234
Patch
https://git.kernel.org/stable/c/aee57a0293dca675637e5504709f9f8fd8e871be
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
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