CVE-2026-93055

Summary

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

UDF symlink pathComponent header OOB read

udf_symlink_filler() can enter udf_pc_to_char() with a partial pathComponent header.

Validate that enough input remains for a complete pathComponent header before accessing it. Reject malformed symlink data that would otherwise make udf_pc_to_char() perform an out-of-bounds read.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d9f49c8b55debf1512f912077b6c759cc8b6d2e0affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 48b2a74317e15f93983c74a5a07245bc94a00d39affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f44f5f795f1a56249821a05183347ea025855e31affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 57371e743398e0d485f0f7beede1ade41f812324affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ee264227b656218bc1b257d8e4f83467f5f17723affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8da8fd3df9fc14cf79ca3a3978d27ba067985111affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b21cb958292ee1e02eb305ff9de09f2f7edd551aaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d23eb7380d1594cda31a5dc8487dd2a5c8def8c7affected
LinuxLinux2.6.12affected
LinuxLinux0 < 2.6.12unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References