High severity7.1NVD Advisory· Published May 1, 2025· Updated Jun 17, 2026
CVE-2022-49852
CVE-2022-49852
Description
In the Linux kernel, the following vulnerability has been resolved:
riscv: process: fix kernel info leakage
thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork.
As for kthread case, it's better to clear the s[12] array as well.
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Affected products
3Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68nvdPatch
- git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4bnvdPatch
- git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30nvdPatch
- git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fbnvdPatch
- git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbcnvdPatch
- git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712nvdPatch
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