CVE-2023-52457
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:…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690Patch
- https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9bPatch
- https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeeePatch
- https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04ePatch
- https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93Patch
- https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0Patch
- https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494Patch
- https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690Patch
- https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9bPatch
- https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeeePatch
- https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04ePatch
- https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93Patch
- https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0Patch
- https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.