5.5
Medium
CVE-2022-47946 An issue was discovered in the Linux kernel 5.10.x before 5.10.155
Description
An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can be skipped. An attack can occur in some situations by forking a process and then quickly terminating it. NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of io_sqpoll_wait_sq.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| n/a | Versions not published | |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 | earliest → < 1.1 | 1.1 |
References
- www.openwall.com www.openwall.com
- git.kernel.org git.kernel.org
- [oss-security] 20221227 Re: Linux kernel: use-after-free in io_sqpoll_wait_sq www.openwall.com
Timeline
- Published
- Last modified
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