CVE-2025-21988 (GCVE-0-2025-21988)

Vulnerability from cvelistv5 – Published: 2025-04-02 12:53 – Updated: 2025-10-10 16:45
VLAI?
Title
fs/netfs/read_collect: add to next->prev_donated
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < 62b9ad7e52d4777f7e775ee1f0ad2452f6041024 (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < e25cec3b76aba47a49138d2162fc809c6cd49c9e (git)
Affected: ee4cdf7ba857a894ad1650d6ab77669cbbfa329e , < e2d46f2ec332533816417b60933954173f602121 (git)
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    Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.20 , ≤ 6.12.* (semver)
Unaffected: 6.13.8 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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Sightings

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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.
  • 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.



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