NetSight
IP …
high7.1

CVE-2026-23388

In the Linux kernel, the following vulnerability has been resolved: Squashfs: check metadata block offset is within range Syzkaller reports a "general protecti…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.29.1 before 5.10.253
from 5.11 before 5.15.203
from 5.16 before 6.1.167
from 6.2 before 6.6.130
from 6.7 before 6.12.77
from 6.13 before 6.18.17

Weakness classification

CWE-125

References