riscv: process: fix kernel info leakage
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4bhttps://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fbhttps://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbchttps://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712