CVE - CVE-2022-49425

CVE-ID
CVE-2022-49425	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: f2fs: fix dereference of stale list iterator after loop body The list iterator variable will be a bogus pointer if no break was hit. Dereferencing it (cur->page in this case) could load an out-of-bounds/undefined value making it unsafe to use that in the comparision to determine if the specific element was found. Since 'cur->page' can be out-ouf-bounds it cannot be guaranteed that by chance (or intention of an attacker) it matches the value of 'page' even though the correct element was not found. This is fixed by using a separate list iterator variable for the loop and only setting the original variable if a suitable element was found. Then determing if the element was found is simply checking if the variable is set.
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/2aaf51dd39afb6d01d13f1e6fe20b684733b37d5 URL:https://git.kernel.org/stable/c/2aaf51dd39afb6d01d13f1e6fe20b684733b37d5 MISC:https://git.kernel.org/stable/c/385edd3ce5b4b1e9d31f474a5e35a39779ec1110 URL:https://git.kernel.org/stable/c/385edd3ce5b4b1e9d31f474a5e35a39779ec1110 MISC:https://git.kernel.org/stable/c/45b2b7d7108ae1e25a5036cab04ab9273e792332 URL:https://git.kernel.org/stable/c/45b2b7d7108ae1e25a5036cab04ab9273e792332 MISC:https://git.kernel.org/stable/c/51d584704d18e60fa473823654f35611c777b291 URL:https://git.kernel.org/stable/c/51d584704d18e60fa473823654f35611c777b291 MISC:https://git.kernel.org/stable/c/5e47a7add3dda7f236548c5ec3017776dc2a729f URL:https://git.kernel.org/stable/c/5e47a7add3dda7f236548c5ec3017776dc2a729f MISC:https://git.kernel.org/stable/c/b26e1c777890e4b938136deb8ec07a29f33862e4 URL:https://git.kernel.org/stable/c/b26e1c777890e4b938136deb8ec07a29f33862e4 MISC:https://git.kernel.org/stable/c/ed7efc472c00986dcd6903ab6ed165c7fa167674 URL:https://git.kernel.org/stable/c/ed7efc472c00986dcd6903ab6ed165c7fa167674
Assigning CNA
kernel.org
Date Record Created
20250226	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 (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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