CVE-2025-40358
In the Linux kernel, the following vulnerability has been resolved: riscv: stacktrace: Disable KASAN checks for non-current tasks Unwinding the stack of a task other than current, KASAN would report "BUG: KASAN: out-of-bounds in…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: riscv: stacktrace: Disable KASAN checks for non-current tasks Unwinding the stack of a task other than current, KASAN would report "BUG: KASAN: out-of-bounds in walk_stackframe+0x41c/0x460" There is a same issue on x86 and has been resolved by the commit 84936118bdf3 ("x86/unwind: Disable KASAN checks for non-current tasks") The solution could be applied to RISC-V too. This patch also can solve the issue: https://seclists.org/oss-sec/2025/q4/23 [pjw@kernel.org: clean up checkpatch issues]
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.15% probability · 4th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/060ea84a484e852b52b938f234bf9b5503a6c910
- https://git.kernel.org/stable/c/27379fcc15a10d3e3780fe79ba3fc7ed1ccd78e2
- https://git.kernel.org/stable/c/2c8d2b53866fb229b438296526ef0fa5a990e5e5
- https://git.kernel.org/stable/c/ef4d626ac59a56f8ec5cc09c1fef26f2923eec6f
- https://git.kernel.org/stable/c/f34ba22989da61186f30a40b6a82e0b3337b96fc
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.