CVE-2025-71203
In the Linux kernel, the following vulnerability has been resolved: riscv: Sanitize syscall table indexing under speculation The syscall number is a user-controlled value used to index into the syscall table.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). 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: Sanitize syscall table indexing under speculation The syscall number is a user-controlled value used to index into the syscall table. Use array_index_nospec() to clamp this value after the bounds check to prevent speculative out-of-bounds access and subsequent data leakage via cache side channels.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-129
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/25fd7ee7bf58ac3ec7be3c9f82ceff153451946cPatch
- https://git.kernel.org/stable/c/33743ec6679aa364ee19d1afbaa50593e9e6e443
- https://git.kernel.org/stable/c/8b44e753795107a22ba31495686e83f4aca48f36Patch
- https://git.kernel.org/stable/c/c45848936ebdb4fcab92f8c39510db83c16d0239Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.