What’s Vulnerable › Vulnerabilities

CVE-2026-46127: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-06-24
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 3.5 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.88; from 6.13 before 6.18.30 — fixed in 5.10.258, 5.15.209, 6.1.175, 6.12.88, 6.18.30, 6.6.140

How to fix

Upgrade to a fixed version: Linux kernel 5.10.258, 5.15.209, 6.1.175, 6.12.88. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/27b6eb1f27fda9bdd5cae028e396758cdf525845
• https://git.kernel.org/stable/c/34fbf48cf3b410d2a6e8c586fa952a36331ca5ba
• https://git.kernel.org/stable/c/443c991fbc954cc9363e963c09f404b9f281f3a2
• https://git.kernel.org/stable/c/75fc130664ae324e7b2f9ad3630e0f175e9ca6c8
• https://git.kernel.org/stable/c/8832626a483439e207734e027afff322ccdf726e
• https://git.kernel.org/stable/c/b610f33c5523fe26f6dd897667fff9c7a1de5905
• https://git.kernel.org/stable/c/e01a957561f663d3b68d2fd233a4502e3367efcd
• https://git.kernel.org/stable/c/ec44c00a4fe1327efa35083f98b39c01cb535a51

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