CVE - CVE-2024-50005

CVE-ID
CVE-2024-50005	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/540138377b22f601f06f55ebfa3ca171dcab471a URL:https://git.kernel.org/stable/c/540138377b22f601f06f55ebfa3ca171dcab471a MISC:https://git.kernel.org/stable/c/bff1709b3980bd7f80be6786f64cc9a9ee9e56da URL:https://git.kernel.org/stable/c/bff1709b3980bd7f80be6786f64cc9a9ee9e56da MISC:https://git.kernel.org/stable/c/d18f669461811dfe2915d5554ab2a9834f810013 URL:https://git.kernel.org/stable/c/d18f669461811dfe2915d5554ab2a9834f810013 MISC:https://git.kernel.org/stable/c/e676e4ea76bbe7f1156d8c326b9b6753849481c2 URL:https://git.kernel.org/stable/c/e676e4ea76bbe7f1156d8c326b9b6753849481c2
Assigning CNA
kernel.org
Date Record Created
20241021	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241021)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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