CVE-2026-23388
High · 7.1CVSS
7.1
EPSS
0.1%
Published
Mar 25, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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