kernel: use-after-free when an io_uring request is being processed
Published Jan 8, 2024
7.0
HIGHCVSS 3.1
EPSS 1.43%
Description
io_uring UAF, Unix SCM garbage collection
Affected products
-
- Version 0StatusaffectedConstraints<6.1~rc1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| The Linux Kernel Organization | Linux | n/a |
|
Configuration 1
- ≤ 6.0.19
Configuration 2
- 18.04
- 20.04
- 22.04
- 22.10
No data.
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux is not affected by this flaw as io_uring (CONFIG_IO_URING) is not enabled in any current shipping kernels.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jan 10, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (6 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.43% (0.01433) | 72.11th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.27% (0.01270) | 65.91th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.19% (0.01185) | 77.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00046) | 18.09th | v3 (v2023.03.01) |
| May 2, 2024 | 0.05% (0.00046) | 14.76th | v3 (v2023.03.01) |
| Jan 10, 2024 | 0.05% (0.00046) | 12.75th | v3 (v2023.03.01) |
References (13)
- http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html
- https://access.redhat.com/security/cve/CVE-2022-2602 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2139586 Issue Tracking
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2602 issue-trackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0091bfc81741b8d3aeb3b7ab8636f911b2de6e80
- https://nvd.nist.gov/vuln/detail/CVE-2022-2602
- https://ubuntu.com/security/notices/USN-5691-1 third-party-advisoryThird Party Advisory
- https://ubuntu.com/security/notices/USN-5692-1 third-party-advisoryThird Party Advisory
- https://ubuntu.com/security/notices/USN-5693-1 third-party-advisoryThird Party Advisory
- https://ubuntu.com/security/notices/USN-5700-1 third-party-advisoryThird Party Advisory
- https://ubuntu.com/security/notices/USN-5752-1 third-party-advisoryThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-2602
- https://www.openwall.com/lists/oss-security/2022/10/18/4
Change history (0)
No recorded changes yet.