CVE-2026-46127
Received Received - Intake
Null Pointer Dereference in Linux Kernel RDMA/ocrdma

Publication date: 2026-05-28

Last updated on: 2026-05-28

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp() Sashiko points out that pd->uctx isn't initialized until late in the function so all these error flow references are NULL and will crash. Use the uctx that isn't NULL.
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Meta Information
Published
2026-05-28
Last Modified
2026-05-28
Generated
2026-05-28
AI Q&A
2026-05-28
EPSS Evaluated
N/A
NVD
CVE-2026-46127
EUVD
EUVD-2026-32886
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability exists in the Linux kernel's RDMA ocrdma driver. Specifically, the issue is that the pd->uctx pointer is not initialized until late in the function ocrdma_copy_pd_uresp(). However, error handling code in this function references pd->uctx before it is initialized, which means it dereferences a NULL pointer. This causes the kernel to crash.

The fix involves using a uctx pointer that is guaranteed not to be NULL during error handling, preventing the NULL pointer dereference and subsequent crash.


How can this vulnerability impact me? :

This vulnerability can cause the Linux kernel to crash due to a NULL pointer dereference in the RDMA ocrdma driver when certain error conditions occur. A kernel crash can lead to system instability, downtime, and potential data loss.


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