CVE-2026-92518
riscv, bpf: Fix kernel stack corruption in tailcall with CFI
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
30a59cc79754fd9ff3f41b7ee2eb21da85988548 < 34b1bb33a025787e05f966e74de18cd36276f801 30a59cc79754fd9ff3f41b7ee2eb21da85988548 < a6e11a81da3420fd37f1518d4f238c4d5784086e 30a59cc79754fd9ff3f41b7ee2eb21da85988548 < 52fb1756ea1d2759dfef2d86245be00b05dac3a2 fe5b68fdcec0f3d97a32f4c4acfef59cf90718f7 6.11.6 < 6.12
Linux / Linux
6.12