CVE-2023-0468: Use After Free
First published: Tue Jan 24 2023(Updated: )
A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <6.1 | |
| Linux Linux kernel | =6.1 | |
| Linux Linux kernel | =6.1-rc1 | |
| Linux Linux kernel | =6.1-rc2 | |
| Linux Linux kernel | =6.1-rc3 | |
| Linux Linux kernel | =6.1-rc4 | |
| Linux Linux kernel | =6.1-rc5 | |
| Linux Linux kernel | =6.1-rc6 | |
| redhat/Kernel | <6.1 | 6.1 |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=2164024
- https://launchpad.net/bugs/cve/CVE-2023-0468
- https://github.com/torvalds/linux/commit/12ad3d2d6c5b0131a6052de91360849e3e154846
- https://github.com/torvalds/linux/commit/a26a35e9019fd70bf3cf647dcfdae87abc7bacea
- https://access.redhat.com/security/cve/cve-2023-0468
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0468
- https://nvd.nist.gov/vuln/detail/CVE-2023-0468
- https://security-tracker.debian.org/tracker/CVE-2023-0468
- https://ubuntu.com/security/CVE-2023-0468
- https://git.kernel.org/linus/12ad3d2d6c5b0131a6052de91360849e3e154846
- https://git.kernel.org/linus/a26a35e9019fd70bf3cf647dcfdae87abc7bacea
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