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.
References
| Link | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/12/27/1 | Mailing List Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161&id=0f544353fec8e717d37724d95b92538e1de79e86 | Mailing List Patch Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2022/12/22/2 | Exploit Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2022/12/27/1 | Mailing List Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161&id=0f544353fec8e717d37724d95b92538e1de79e86 | Mailing List Patch Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2022/12/22/2 | Exploit Mailing List Third Party Advisory |
Configurations
History
21 Nov 2024, 07:32
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://www.openwall.com/lists/oss-security/2022/12/27/1 - Mailing List, Third Party Advisory | |
| References | () https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.10.161&id=0f544353fec8e717d37724d95b92538e1de79e86 - Mailing List, Patch, Third Party Advisory | |
| References | () https://www.openwall.com/lists/oss-security/2022/12/22/2 - Exploit, Mailing List, Third Party Advisory |
Information
Published : 2022-12-23 22:15
Updated : 2024-11-21 07:32
NVD link : CVE-2022-47946
Mitre link : CVE-2022-47946
CVE.ORG link : CVE-2022-47946
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-416
Use After Free