CVE-2026-98211mmc: mmci: Fix use-after-free in busy-timeout work
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from b1a665932dc23cad0b8af2745cd9713f9e930d63 before af6fbf72e899932f330c4e5d0b84d985c922c633; from b1a665932dc23cad0b8af2745cd9713f9e930d63 before 7fecf79f31568de161be14911db10d1251617b01; from b1a665932dc23cad0b8af2745cd9713f9e930d63 before 432b98c1f5daecf04a33c8e1688d26e7ac221e23; from b1a665932dc23cad0b8af2745cd9713f9e930d63 before 2b19cf3e50cddaff07b657dae1a8f30f06032852 | CNA record |
References
- https://git.kernel.org/stable/c/af6fbf72e899932f330c4e5d0b84d985c922c633
- https://git.kernel.org/stable/c/7fecf79f31568de161be14911db10d1251617b01
- https://git.kernel.org/stable/c/432b98c1f5daecf04a33c8e1688d26e7ac221e23
- https://git.kernel.org/stable/c/2b19cf3e50cddaff07b657dae1a8f30f06032852
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.