CVE-2026-74745

CVE CVE-2026-74745EUVD EUVD-2026-66575Published 2026-08-26T14:36:55.000ZLast changed 2026-08-27T05:01:06.000ZCVSS 7.5

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: avoid deadlock when canceling IRQ affinity notifier Unregistering IRQ affinity notifiers waits for the callback synchronously. bnxt takes the netdev instance lock in the notifier (to restart the queue) and cancels the work under the same lock. This may obviously deadlock. Move the restart to the async service task. The queue restart isn't super time sensitive. Store the new TPH tag, schedule the task. Safely canceling the service task is already ironed out. In bnxt_request_irq() the order of registering notifier, affinity and initial TPH programming has to be inverted. I think it was racy previously since user may trigger an update as soon as notifier is installed. There's a small known gap - if pcie_tph_get_cpu_st() fails at init and the target tag is 0 we may miss programming the entry. This does not seem worth fixing, the code has skip-on-failure all over the place, anyway.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 7.2; c214410c47d6ec3128143370747d9e388bab21d7 <8b1118fc5a5d2cdc21cc07b5106921ad4f77c544; c214410c47d6ec3128143370747d9e388bab21d7 <51e96fa31f7e7eac2cba8f854e24d36600cc040b; patch: 0; patch: 7.1.10; 6.15

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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