CVE-2026-23388 (GCVE-0-2026-23388)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:28 – Updated: 2026-03-25 10:28
VLAI?
Title
Squashfs: check metadata block offset is within range
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < 0c8ab092aec3ac4294940054772d30b511b16713 (git)
Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < 6b847d65f5b0065e02080c61fad93d57d6686383 (git)
Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < 9e9fa5ad37c9cbad73c165c7ff1e76e650825e7c (git)
Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < 01ee0bcc29864b78249308e8b35042b09bbf5fe3 (git)
Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < 3b9499e7d677dd4366239a292238489a804936b2 (git)
Affected: f400e12656ab518be107febfe2315fb1eab5a342 , < fdb24a820a5832ec4532273282cbd4f22c291a0d (git)
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    Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.77 , ≤ 6.12.* (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc2 , ≤ * (original_commit_for_fix)
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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