bpf: Fix tcx/netkit detach permissions when prog fd isn't given
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.
CVE-2026-45932
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-2026-45932
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": "e420bed025071a623d2720a92bc2245c84757ecb",
"lessThan": "8e1623e7d61faf16cbadc80550da874303611ff5",
"versionType": "git"
},
{
"status": "affected",
"version": "e420bed025071a623d2720a92bc2245c84757ecb",
"lessThan": "0c249f523175963b0a746bba673ecebdf6cefd86",
"versionType": "git"
},
{
"status": "affected",
"version": "e420bed025071a623d2720a92bc2245c84757ecb",
"lessThan": "4e0772cded109c238411f2fac36ac39302758b81",
"versionType": "git"
},
{
"status": "affected",
"version": "e420bed025071a623d2720a92bc2245c84757ecb",
"lessThan": "3f04cc1e5374da4c5e791ae010a06cfea7bacbe6",
"versionType": "git"
},
{
"status": "affected",
"version": "e420bed025071a623d2720a92bc2245c84757ecb",
"lessThan": "ae23bc81ddf7c17b663c4ed1b21e35527b0a7131",
"versionType": "git"
}
],
"programFiles": [
"include/linux/bpf.h",
"include/linux/bpf_mprog.h",
"kernel/bpf/syscall.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.14",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"include/linux/bpf.h",
"include/linux/bpf_mprog.h",
"kernel/bpf/syscall.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-45932
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46309 · Revision 1
- Added to Heist Feed
- Publisher date