CVE-2024-43856 (GCVE-0-2024-43856)

Vulnerability from cvelistv5 – Published: 2024-08-17 09:24 – Updated: 2025-11-03 22:05
VLAI?
Title
dma: fix call order in dmam_free_coherent
Summary
In the Linux kernel, the following vulnerability has been resolved: dma: fix call order in dmam_free_coherent dmam_free_coherent() frees a DMA allocation, which makes the freed vaddr available for reuse, then calls devres_destroy() to remove and free the data structure used to track the DMA allocation. Between the two calls, it is possible for a concurrent task to make an allocation with the same vaddr and add it to the devres list. If this happens, there will be two entries in the devres list with the same vaddr and devres_destroy() can free the wrong entry, triggering the WARN_ON() in dmam_match. Fix by destroying the devres entry before freeing the DMA allocation. kokonut //net/encryption http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < fe2d246080f035e0af5793cb79067ba125e4fb63 (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 2f7bbdc744f2e7051d1cb47c8e082162df1923c9 (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 257193083e8f43907e99ea633820fc2b3bcd24c7 (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 87b34c8c94e29fa01d744e5147697f592998d954 (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < f993a4baf6b622232e4c190d34c220179e5d61eb (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 1fe97f68fce1ba24bf823bfb0eb0956003473130 (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 22094f5f52e7bc16c5bf9613365049383650b02e (git)
Affected: 9ac7849e35f705830f7b016ff272b0ff1f7ff759 , < 28e8b7406d3a1f5329a03aa25a43aa28e087cb20 (git)
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    Linux Linux Affected: 2.6.21
Unaffected: 0 , < 2.6.21 (semver)
Unaffected: 4.19.320 , ≤ 4.19.* (semver)
Unaffected: 5.4.282 , ≤ 5.4.* (semver)
Unaffected: 5.10.224 , ≤ 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 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.



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