What’s Vulnerable › Vulnerabilities

CVE-2026-93037: RDMA/hfi1: Propagate sdma_txinit_ahg() errors

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Propagate sdma_txinit_ahg() errors set_txreq_header_ahg() ignores the return value of sdma_txinit_ahg(). If sdma_txinit_ahg() fails, it returns before initializing tx->txreq. However, set_txreq_header_ahg() ignores the error and returns the AHG change count, causing the caller to continue processing the request as though initialization had succeeded. Propagate sdma_txinit_ahg() failures to the caller and abort request processing when initialization fails. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

• Linux kernel: 4.14 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/091c6162c022cbdfb64219708a71728cfd1d4600
• https://git.kernel.org/stable/c/122a730675565ff2ad210537c3fc3afb8291d482
• https://git.kernel.org/stable/c/3416db552eb378e54cb2f2ce0db5f0df88654bda
• https://git.kernel.org/stable/c/5b7cefffd15d87c8103865f887cdcf9077d8094b
• https://git.kernel.org/stable/c/bf974994150cfd14bfc599748925f4d426e00d90
• https://git.kernel.org/stable/c/ca99431820e8cac19f6a091c04da54cbe8d64f52
• https://git.kernel.org/stable/c/cb73c2fe6e9cf563c99f22b7c8bca0d5f70d603e
• https://git.kernel.org/stable/c/fd6dee13f3857259b6b2ddd28e1ed95fd94ae2f9

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