CVE-2025-40358
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
16/12/2025
Last modified:
16/12/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
riscv: stacktrace: Disable KASAN checks for non-current tasks<br />
<br />
Unwinding the stack of a task other than current, KASAN would report<br />
"BUG: KASAN: out-of-bounds in walk_stackframe+0x41c/0x460"<br />
<br />
There is a same issue on x86 and has been resolved by the commit<br />
84936118bdf3 ("x86/unwind: Disable KASAN checks for non-current tasks")<br />
The solution could be applied to RISC-V too.<br />
<br />
This patch also can solve the issue:<br />
https://seclists.org/oss-sec/2025/q4/23<br />
<br />
[pjw@kernel.org: clean up checkpatch issues]



