VYPR
High severity8.4NVD Advisory· Published Jul 19, 2026· Updated Jul 29, 2026

CVE-2026-53369

CVE-2026-53369

Description

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

udf: reject descriptors with oversized CRC length

udf_read_tagged() skips CRC verification when descCRCLength + sizeof(struct tag) exceeds the block size. A crafted UDF image can set descCRCLength to an oversized value to bypass CRC validation entirely; the descriptor is then accepted based solely on the 8-bit tag checksum, which is trivially recomputable.

Reject such descriptors instead of silently accepting them. A legitimate single-block descriptor should never have a CRC length that exceeds the block.

Affected products

22

Patches

Vulnerability mechanics

References

8

News mentions

0

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