CVE-2024-50005
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50005
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50005.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-50005
- Downstream
- Related
- Published
- 2024-10-21T18:53:59Z
- Modified
- 2025-10-15T17:11:51.997886Z
- Summary
- mac802154: Fix potential RCU dereference issue in mac802154_scan_worker
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mac802154: Fix potential RCU dereference issue in mac802154scanworker
In the
mac802154_scan_workerfunction, thescan_req->typefield 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->typevalue is now stored in a local variablescan_req_typewhile still within the RCU read-side critical section. Thescan_req_typeis then used after the RCU lock is released, ensuring that the type value is safely accessed without violating RCU rules. - References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/540138377b22f601f06f55ebfa3ca171dcab471a
- https://git.kernel.org/stable/c/bff1709b3980bd7f80be6786f64cc9a9ee9e56da
- https://git.kernel.org/stable/c/d18f669461811dfe2915d5554ab2a9834f810013
- https://git.kernel.org/stable/c/e676e4ea76bbe7f1156d8c326b9b6753849481c2
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8Fixede676e4ea76bbe7f1156d8c326b9b6753849481c2
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8Fixed540138377b22f601f06f55ebfa3ca171dcab471a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8Fixedd18f669461811dfe2915d5554ab2a9834f810013
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede2c3e6f53a7a8a00ffeed127cfd1b397c3b016f8Fixedbff1709b3980bd7f80be6786f64cc9a9ee9e56da