CVE-2023-53755
In the Linux kernel, the following vulnerability has been resolved: dmaengine: ptdma: check for null desc before calling pt_cmd_callback Resolves a panic that can occur on AMD systems, typically during host shutdown, after the PTDMA driver had been exercised. The issue was the pt_issue_pending() function is mistakenly assuming that there will be at least one descriptor in the Submitted queue when the function is called. However, it is possible that both the Submitted and Issued queues could be empty, which could result in pt_cmd_callback() being mistakenly called with a NULL pointer. Ref: Bugzilla Bug 216856.
Affected versions
Linux kernel versions
5.18
and later are affected. Fixed in
6.1.16,
6.2.3,
6.3
and their respective stable series.
References
The following references provide additional information about CVE-2023-53755 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/5bba023b1241c7af5d40447503a68de282ad5190
-
PatchKernel patch commithttps://git.kernel.org/stable/c/8ae2113702613207efc05453bc9a3df2b992bf45
-
PatchKernel patch commithttps://git.kernel.org/stable/c/928469986171a6f763b34b039427f5667ba3fd50
Frequently asked questions
-
What is CVE-2023-53755?
CVE-2023-53755 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.18 onward and has been patched in 6.1.16, 6.2.3 and 6.3. CVE-2023-53755 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2023-53755?
Yes — CVE-2023-53755 has been patched. Fixed versions include 6.1.16, 6.2.3 and 6.3. If you are running Linux kernel 5.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2023-53755 actively exploited?
No — CVE-2023-53755 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.