High severity7.8NVD Advisory· Published Sep 17, 2026· Updated Oct 19, 2026
CVE-2026-92518
CVE-2026-92518
Description
In the Linux kernel, the following vulnerability has been resolved:
riscv, bpf: Fix kernel stack corruption in tailcall with CFI
When CONFIG_CFI_CLANG is enabled, prog->bpf_func already skips the kcfi instruction during setup. Including it again in the tailcall jump offset causes it to jump over an extra 4 bytes, skipping the stack pointer adjustment, which will result in kernel stack corruption.
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Affected products
3- osv-coords2 versions
>= 6.12.0, < 6.18.52+ 1 more
- (no CPE)range: >= 6.12.0, < 6.18.52
- (no CPE)range: < 7.2.8-1.1
Patches
Vulnerability mechanics
References
3News mentions
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