In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Keep EQ resources alive while IRQ is registered The completion IRQ handler accesses the EQ state and DMA buffer. Its IRQ was registered before that state was initialized, while teardown released the buffer before free_irq() synchronized the handler. Initialize the EQ without arming it, register the IRQ, and then arm it. Reverse the resource order during teardown by freeing the IRQ before destroying the EQ.
Fix
Microsoft's update · Moderate
- Release Notes — azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 · build 6.6.159.1-1
From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-30.
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 2
- StatusReceived → PublishedNVD modified 2026-10-19 09:19
- First seenunscoredNVD modified 2026-10-14 14:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://git.kernel.org/stable/c/38871ff47e2a02f8d9a333a65f358d987247b5b0
- https://git.kernel.org/stable/c/3cd652dfcd822af26ba75d6d2d245ea7f73b499e
- https://git.kernel.org/stable/c/795eb34bfd8b1ab347adc41a11e4bb97c3ac0ce6
- https://git.kernel.org/stable/c/9ecd3dcbdf1f315aadc049b291f59c79dc478062
- https://git.kernel.org/stable/c/c767e2812cac83fef70fb8932c3f0fe97dff9388
- https://git.kernel.org/stable/c/e22a3627b7151754f07f90ea3d1ab6e85f5d93f4