CVE-2022-29582
In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.
02 / AFFECTED SOFTWARE
Affected packages
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In fs, there is a possible use-after-free due to a race condition in io_uring timeouts. This could lead to local escalation of privileges with no additional execution privileges needed. User interaction is not needed for exploitation
In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.
05 / REFERENCES
Further evidence
- https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a
- https://source.android.com/security/bulletin/2022-09-01
- http://www.openwall.com/lists/oss-security/2022/04/22/4
- http://www.openwall.com/lists/oss-security/2022/08/08/3
- http://www.openwall.com/lists/oss-security/2024/04/24/3
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
- https://github.com/Ruia-ruia/CVE-2022-29582-Exploit
- https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
- https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/
- https://www.debian.org/security/2022/dsa-5127
- https://www.openwall.com/lists/oss-security/2022/04/22/3