perf: Revert to requiring CAP_SYS_ADMIN for uprobes
In the Linux kernel, the following vulnerability has been resolved: perf: Revert to requiring CAP_SYS_ADMIN for uprobes Jann reports that uprobes can be used destructively when used in the middle of an instruction. The kernel only verifies there is a valid instruction at the requested offset, but due to variable instruction length cannot determine if this is an instruction as seen by the intended execution stream. Additionally, Mark Rutland notes that on architectures that mix data in the text segment (like arm64), a similar things can be done if the data word is 'mistaken' for an instruction. As such, require CAP_SYS_ADMIN for uprobes.
CVE-2025-38466
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-2025-38466
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": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "d7ef1afd5b3f43f4924326164cee5397b66abd9c",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "c0aec35f861fa746ca45aa816161c74352e6ada8",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "8e8bf7bc6aa6f583336c2fda280b6cea0aed5612",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "183bdb89af1b5193b1d1d9316986053b15ca6fa4",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "a0a8009083e569b5526c64f7d3f2a62baca95164",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "d5074256b642cdeb46a70ce2f15193e766edca68",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e0924e5c2b59365f9c0d43ff8722e79ecf4088",
"lessThan": "ba677dbe77af5ffe6204e0f3f547f3ba059c6302",
"versionType": "git"
}
],
"programFiles": [
"kernel/events/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.240",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.189",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.146",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.99",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.39",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.7",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"kernel/events/core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-38466
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30575 · Revision 1
- Added to Heist Feed
- Publisher date