bpf: Disable preemption in bpf_get_stackid
In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpf_get_stackid The get_perf_callchain call needs disabled preemption plus we need it disabled as long as we access its returned trace entries buffer. Note the bpf_get_stackid_pe function is executed already with preemption disabled.
CVE-2026-89799
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-2026-89799
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": "d5a3b1f691865be576c2bffa708549b8cdccda19",
"lessThan": "e79a70c2e97ae36bbdd371f0ce88a525f7b49f01",
"versionType": "git"
},
{
"status": "affected",
"version": "d5a3b1f691865be576c2bffa708549b8cdccda19",
"lessThan": "18c71e4b65ee60b8611fc071bdd7159f10185117",
"versionType": "git"
},
{
"status": "affected",
"version": "d5a3b1f691865be576c2bffa708549b8cdccda19",
"lessThan": "ccf481d73bce6e851cec364fe831c86fe66877cf",
"versionType": "git"
},
{
"status": "affected",
"version": "d5a3b1f691865be576c2bffa708549b8cdccda19",
"lessThan": "c4efdc1d4cb3e9183e41a1b2a5e0901dbbb31cdf",
"versionType": "git"
},
{
"status": "affected",
"version": "d5a3b1f691865be576c2bffa708549b8cdccda19",
"lessThan": "15f1bd8574662f1b7b26aaa2e23ebf4066f0117d",
"versionType": "git"
}
],
"programFiles": [
"kernel/bpf/stackmap.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/bpf/stackmap.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89799
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46728 · Revision 1
- Added to Heist Feed
- Publisher date