CVEvulnerability
CVE-2026-98211
- Status
- Received
- Published
- 2026-10-06
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/2b19cf3e50cddaff07b657dae1a8f30f06032852 git.kernel.org
- https://git.kernel.org/stable/c/432b98c1f5daecf04a33c8e1688d26e7ac221e23 git.kernel.org
- https://git.kernel.org/stable/c/7fecf79f31568de161be14911db10d1251617b01 git.kernel.org
- https://git.kernel.org/stable/c/af6fbf72e899932f330c4e5d0b84d985c922c633 git.kernel.org