CVE-2026-46070
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5: validate payload size before accessing journal metadata r5c_recovery_analyze_meta_block() and r5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a journal metadata block using on-disk payload size fields without validating them against the remaining space in the metadata block. A corrupted journal contains payload sizes extending beyond the PAGE_SIZE boundary can cause out-of-bounds reads when accessing payload fields or computing offsets. Add bounds validation for each payload type to ensure the full payload fits within meta_size before processing.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Undergoing Analysis
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-05-27 14:17:28.283000
Last modified
2026-10-19 20:18:25.710000
View original CVE JSON
{
"id": "CVE-2026-46070",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-05-27T14:17:28.283",
"lastModified": "2026-10-19T20:18:25.710",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: validate payload size before accessing journal metadata\n\nr5c_recovery_analyze_meta_block() and\nr5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a\njournal metadata block using on-disk payload size fields without\nvalidating them against the remaining space in the metadata block.\n\nA corrupted journal contains payload sizes extending beyond the PAGE_SIZE\nboundary can cause out-of-bounds reads when accessing payload fields or\ncomputing offsets.\n\nAdd bounds validation for each payload type to ensure the full payload\nfits within meta_size before processing."
}
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