GHSA-63c9-g3g8-7rpvHighCVSS 7.8
In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix kernel stack...
🔗 CVE IDs covered (1)
📋 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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-92518
- https://git.kernel.org/stable/c/34b1bb33a025787e05f966e74de18cd36276f801
- https://git.kernel.org/stable/c/52fb1756ea1d2759dfef2d86245be00b05dac3a2
- https://git.kernel.org/stable/c/a6e11a81da3420fd37f1518d4f238c4d5784086e
- https://github.com/advisories/GHSA-63c9-g3g8-7rpv