bpf: Fix CFI mismatch in task work callback
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix CFI mismatch in task work callback BPF subprograms use the bpf_callback_t ABI, but task work invokes the callback through a three-argument function pointer. This trips kCFI. Store and invoke the callback as bpf_callback_t.
CVE-2026-92486
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-92486
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "38aa7003e369802f81a078f6673d10d97013f04f",
"lessThan": "85a33c910edc3651f68b17ae3c597c012545958f",
"versionType": "git"
},
{
"status": "affected",
"version": "38aa7003e369802f81a078f6673d10d97013f04f",
"lessThan": "a2cbab47f44e9ea8c5a161ecba1b6bb8535771eb",
"versionType": "git"
},
{
"status": "affected",
"version": "38aa7003e369802f81a078f6673d10d97013f04f",
"lessThan": "2805abd089576799b15092949420e3f8ba97fabd",
"versionType": "git"
}
],
"programFiles": [
"kernel/bpf/helpers.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/bpf/helpers.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-92486
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #37720 · Revision 1
- Added to Heist Feed
- Publisher date