7.1

CVE-2026-23388

Squashfs: check metadata block offset is within range

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

Squashfs: check metadata block offset is within range

Syzkaller reports a "general protection fault in squashfs_copy_data"

This is ultimately caused by a corrupted index look-up table, which
produces a negative metadata block offset.

This is subsequently passed to squashfs_copy_data (via
squashfs_read_metadata) where the negative offset causes an out of bounds
access.

The fix is to check that the offset is within range in
squashfs_read_metadata.  This will trap this and other cases.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.29.1 < 5.10.253
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.203
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.167
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.130
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.77
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.17
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.7
Linux ≫ Linux Kernel Version 2.6.29 Update -
Linux ≫ Linux Kernel Version 7.0 Update rc1
Linux ≫ Linux Kernel Version 7.0 Update rc2
Linux ≫ Linux Kernel Version 7.0 Update rc3
Linux ≫ Linux Kernel Version 7.0 Update rc4
Linux ≫ Linux Kernel Version 7.0 Update rc5
Linux ≫ Linux Kernel Version 7.0 Update rc6
Linux ≫ Linux Kernel Version 7.0 Update rc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.021
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/0c8ab092aec3ac4294940054772d30b511b16713
Patch
https://git.kernel.org/stable/c/6b847d65f5b0065e02080c61fad93d57d6686383
Patch
https://git.kernel.org/stable/c/9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c
Patch
https://git.kernel.org/stable/c/01ee0bcc29864b78249308e8b35042b09bbf5fe3
Patch
https://git.kernel.org/stable/c/3b9499e7d677dd4366239a292238489a804936b2
Patch
https://git.kernel.org/stable/c/fdb24a820a5832ec4532273282cbd4f22c291a0d
Patch
https://git.kernel.org/stable/c/3f68a9457a6190814377577374da75f872e0a013
Patch
https://git.kernel.org/stable/c/60f679f643f3f36a8571ea585e4ce5d93ef952b5
Patch