CVE-2023-53755 Details
Description
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.
A vulnerability in the Linux kernel's PTDMA driver can lead to a null pointer dereference, causing a system panic on AMD machines. This issue typically arises during host shutdown after the PTDMA driver has been active. The problem stems from the 'pt_issue_pending()' function, which incorrectly assumes that there will always be at least one descriptor in the Submitted queue. In reality, both the Submitted and Issued queues can be empty, leading to the 'pt_cmd_callback()' function being called with a null pointer.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched version are available on the Linux kernel's official website.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 8, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/5bba023b1241c7af5d40447503a68de282ad5190 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/8ae2113702613207efc05453bc9a3df2b992bf45 | kernel.org | Source CodeVendor |
| https://git.kernel.org/stable/c/928469986171a6f763b34b039427f5667ba3fd50 | kernel.org | Source CodeVendor |
Weakness Enumeration
No weakness enumeration is available for this CVE.
Affected Products
| Product | Versions |
|---|---|
| Linux kernel | All versions |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 8, 2025 | New CVE Received | kernel.org |