Riskcovery

CVE-2026-98211

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

State
Published
Severity
Not scored
Published
Oct 6, 2026
Updated
Oct 19, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • b1a665932dc23cad0b8af2745cd9713f9e930d63 to before af6fbf72e899932f330c4e5d0b84d985c922c633Affected
  • b1a665932dc23cad0b8af2745cd9713f9e930d63 to before 7fecf79f31568de161be14911db10d1251617b01Affected
  • b1a665932dc23cad0b8af2745cd9713f9e930d63 to before 432b98c1f5daecf04a33c8e1688d26e7ac221e23Affected
  • b1a665932dc23cad0b8af2745cd9713f9e930d63 to before 2b19cf3e50cddaff07b657dae1a8f30f06032852Affected
LinuxLinux
  • 6.5Affected
  • before 6.5Not affected
  • 6.12.112 through 6.12.*Not affected
  • 6.18.54 through 6.18.*Not affected
  • 7.2.8 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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