CVE-2024-50005 (GCVE-0-2024-50005)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:53 – Updated: 2025-05-04 09:43
VLAI?
Title
mac802154: Fix potential RCU dereference issue in mac802154_scan_worker
Summary
In the Linux kernel, the following vulnerability has been resolved: mac802154: Fix potential RCU dereference issue in mac802154_scan_worker In the `mac802154_scan_worker` function, the `scan_req->type` field was accessed after the RCU read-side critical section was unlocked. According to RCU usage rules, this is illegal and can lead to unpredictable behavior, such as accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the `scan_req->type` value is now stored in a local variable `scan_req_type` while still within the RCU read-side critical section. The `scan_req_type` is then used after the RCU lock is released, ensuring that the type value is safely accessed without violating RCU rules.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 , < e676e4ea76bbe7f1156d8c326b9b6753849481c2 (git)
Affected: e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 , < 540138377b22f601f06f55ebfa3ca171dcab471a (git)
Affected: e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 , < d18f669461811dfe2915d5554ab2a9834f810013 (git)
Affected: e2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8 , < bff1709b3980bd7f80be6786f64cc9a9ee9e56da (git)
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    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (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.
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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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