CVE-2024-43854 (GCVE-0-2024-43854)

Vulnerability from cvelistv5 – Published: 2024-08-17 09:22 – Updated: 2025-11-03 22:05
VLAI?
Title
block: initialize integrity buffer to zero before writing it to media
Summary
In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < 9f4af4cf08f9a0329ade3d938f55d2220c40d0a6 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < 129f95948a96105c1fad8e612c9097763e88ac5f (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < 3fd11fe4f20756b4c0847f755a64cd96f8c6a005 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < d418313bd8f55c079a7da12651951b489a638ac1 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < 23a19655fb56f241e592041156dfb1c6d04da644 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < ebc0e91ba76dc6544fff9f5b66408b1982806a00 (git)
Affected: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b , < 899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f (git)
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    Linux Linux Affected: 2.6.27
Unaffected: 0 , < 2.6.27 (semver)
Unaffected: 4.19.322 , ≤ 4.19.* (semver)
Unaffected: 5.4.284 , ≤ 5.4.* (semver)
Unaffected: 5.10.226 , ≤ 5.10.* (semver)
Unaffected: 5.15.165 , ≤ 5.15.* (semver)
Unaffected: 6.1.103 , ≤ 6.1.* (semver)
Unaffected: 6.6.44 , ≤ 6.6.* (semver)
Unaffected: 6.10.3 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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