High
io_uring/zctx: check chained notif contexts
In the Linux kernel, the following vulnerability has been resolved: io_uring/zctx: check chained notif contexts Send zc only links ubuf_info for requests coming from the same context. There are some ambiguous syz reports, so let's check the assumption on notification completion.
Announced Group revision 1
Original source ↗CVE-2025-68317
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-2025-68317
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": "6fe4220912d19152a26ce19713ab232f4263018d",
"lessThan": "aaafd17d3f4be2c15539359a5b4bfa00237f687f",
"versionType": "git"
},
{
"status": "affected",
"version": "6fe4220912d19152a26ce19713ab232f4263018d",
"lessThan": "d664a3ce3a604231a0b144c152a3755d03b18b60",
"versionType": "git"
},
{
"status": "affected",
"version": "6fe4220912d19152a26ce19713ab232f4263018d",
"lessThan": "ab3ea6eac5f45669b091309f592c4ea324003053",
"versionType": "git"
}
],
"programFiles": [
"io_uring/notif.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.58",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.8",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"io_uring/notif.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-68317
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30740 · Revision 1
- Added to Heist Feed
- Publisher date