CVE-2023-4134: Kernel: cyttsp4_core: use-after-free in cyttsp4_watchdog_work()
First published: Mon Jul 10 2023(Updated: )
A use-after-free vulnerability was found in the cyttsp4_core driver in the Linux kernel. This issue occurs in the device cleanup routine due to a possible rearming of the watchdog_timer from the workqueue. This could allow a local user to crash the system, causing a denial of service.
Credit: patrick@puiterwijk.org patrick@puiterwijk.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.5 | 6.5 |
| Linux Linux kernel | <6.5 | |
| Fedoraproject Fedora | =38 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.123-1<=6.1.119-1 | 6.12.6-1 6.12.9-1 |
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Reference Links
- https://github.com/torvalds/linux/commit/dbe836576f12743a7d2d170ad4ad4fd324c4d47a
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2228792
- https://access.redhat.com/security/cve/cve-2023-4134
- https://bugzilla.redhat.com/show_bug.cgi?id=2221700
- https://access.redhat.com/security/cve/CVE-2023-4134
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-4134
- https://nvd.nist.gov/vuln/detail/CVE-2023-4134
- https://launchpad.net/bugs/cve/CVE-2023-4134
- https://security-tracker.debian.org/tracker/CVE-2023-4134
- https://ubuntu.com/security/CVE-2023-4134
- https://git.kernel.org/linus/dbe836576f12743a7d2d170ad4ad4fd324c4d47a
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