GHSA-3667-r4r3-59jh

GHSA-3667-r4r3-59jh PUBLISHED CVSS 7.099999904632568 HIGH

Record from GitHub Advisory Database · Published March 25, 2026

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.

Risk scores

CVSS 3.1

7.099999904632568

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Timeline

Mar 25, 2026 CVE Published
Apr 19, 2026 Security Advisory

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