CVE-2023-52457: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed
First published: Fri Feb 23 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.4.225<5.4.268 | |
| Linux Kernel | >=5.10.156<5.10.209 | |
| Linux Kernel | >=5.15.80<5.15.148 | |
| Linux Kernel | >=6.0.10<6.1.75 | |
| Linux Kernel | >=6.2<6.6.14 | |
| Linux Kernel | >=6.7<6.7.2 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.10-1 6.12.11-1 |
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Reference Links
- https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690
- https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9b
- https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeee
- https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04e
- https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93
- https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0
- https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494
- https://launchpad.net/bugs/cve/CVE-2023-52457
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52457
- https://nvd.nist.gov/vuln/detail/CVE-2023-52457
- https://security-tracker.debian.org/tracker/CVE-2023-52457
- https://ubuntu.com/security/CVE-2023-52457
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://git.kernel.org/linus/ad90d0358bd3b4554f243a425168fc7cebe7d04e
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