CVE-2024-44949 (GCVE-0-2024-44949)

Vulnerability from cvelistv5 – Published: 2024-09-04 18:35 – Updated: 2025-11-03 22:13
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 00baca74fb5879e5f9034b6156671301f500f8ee (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 642a0b7453daff0295310774016fcb56d1f5bc7f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 533de2f470baac40d3bf622fe631f15231a03c9f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7ae04ba36b381bffe2471eff3a93edced843240f (git)
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    Linux Linux Unaffected: 6.1.119 , ≤ 6.1.* (semver)
Unaffected: 6.6.46 , ≤ 6.6.* (semver)
Unaffected: 6.10.5 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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      "cveMetadata": "{\"cveId\": \"CVE-2024-44949\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:13:59.062Z\", \"dateReserved\": \"2024-08-21T05:34:56.665Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-04T18:35:49.788Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.