Unrated severityNVD Advisory· Published Oct 6, 2026

CVE-2026-98211

Description

In the Linux kernel, the following vulnerability has been resolved:

mmc: mmci: Fix use-after-free in busy-timeout work

ux500_busy_complete() can queue ux500_busy_timeout_work for an R1b command, but mmci_remove() never cancels it. The work can subsequently dereference the devm-allocated mmci_host after it has been released.

Mask the controller interrupts and disable the delayed work during removal. This drains any queued instance and stops an IRQ handler that is still in progress from queueing the work again once it has been disabled.

This issue was found by an in-house static analysis tool.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Linux/Kernelllm-fuzzy

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/2b19cf3e50cddaff07b657dae1a8f30f06032852nvd
git.kernel.org/stable/c/432b98c1f5daecf04a33c8e1688d26e7ac221e23nvd
git.kernel.org/stable/c/7fecf79f31568de161be14911db10d1251617b01nvd
git.kernel.org/stable/c/af6fbf72e899932f330c4e5d0b84d985c922c633nvd

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