Use after free in io_uring in the Linux Kernel
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).
CVE-2023-3389
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-2023-3389
Kernel
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
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org",
"vendor": "Linux",
"product": "Kernel",
"versions": [
{
"status": "affected",
"version": "5.13",
"lessThan": "6.4",
"versionType": "custom"
},
{
"status": "affected",
"version": "5.10.162",
"lessThan": "5.10.185",
"versionType": "custom"
}
],
"packageName": "kernel",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2023-3389
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #23222 · Revision 1
- Added to Heist Feed
- Publisher date