CVE-2026-46070 (GCVE-0-2026-46070)
Vulnerability from cvelistv5
Published
2026-05-27 12:57
Modified
2026-10-19 19:26
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
Version: b4c625c67362b3940f619c1a836b4e8329106658
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      "cveMetadata": "{\"cveId\": \"CVE-2026-46070\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2026-05-13T15:03:33.095Z\", \"datePublished\": \"2026-05-27T12:57:54.345Z\", \"dateUpdated\": \"2026-10-19T19:26:42.780Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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