CVE-2026-92518

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Source
https://cve.org/CVERecord?id=CVE-2026-92518
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92518.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-92518
Downstream
Related
Published
2026-09-17T16:10:26Z
Modified
2026-10-08T02:53:25Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
riscv, bpf: Fix kernel stack corruption in tailcall with CFI
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92518.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
30a59cc79754fd9ff3f41b7ee2eb21da85988548
Fixed
34b1bb33a025787e05f966e74de18cd36276f801
Fixed
a6e11a81da3420fd37f1518d4f238c4d5784086e
Fixed
52fb1756ea1d2759dfef2d86245be00b05dac3a2
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6.11.6
Fixed
6.12
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
fe5b68fdcec0f3d97a32f4c4acfef59cf90718f7

Affected versions

v6.*
v6.11.10
v6.11.11
v6.11.6
v6.11.7
v6.11.8
v6.11.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92518.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.12.0
Fixed
6.18.52
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-92518.json"