CVE-2022-2327
Use-after-free in io_uring ad work_flags in Linux Kernel
- State
- Published
- Severity
- 7.5 High
- Published
- Jul 22, 2022
- Updated
- Oct 14, 2026
- Reserved
- Jul 6, 2022
Description
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N |
Weaknesses
- CWE-416 Use After Free
Affected Products
| Product | Versions |
|---|---|
Linux KernelLinux Kernel |
|
References
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=df3f3bb5059d20ef094d6b2f0256c4bf4127a859
- https://kernel.dance/#df3f3bb5059d20ef094d6b2f0256c4bf4127a859
- https://security.netapp.com/advisory/ntap-20230203-0009/
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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