CVE-2026-98210
What it is
In the Linux kernel, the following vulnerability has been resolved: mmc: mxcmmc: cancel data work and watchdog on remove mxcmci_remove() frees the host through the devm tail, but neither it nor mmc_remove_host() drains the driver's own asynchronous state. host->watchdog, a 10 s timer armed on the DMA path in mxcmci_setup_data(), is deleted only by the DMA- and IRQ-complete paths, which the remove path does not explicitly drain; it can therefore fire after the host is freed and dereference it in mxcmci_watchdog(). host->datawork, armed from the IRQ handler on the PIO path, is not cancelled by the remove path either. Free the devm-registered IRQ, then cancel datawork and delete the watchdog in mxcmci_remove(), before dma_release_channel(). Freeing the IRQ first keeps a trailing handler from re-arming datawork between the cancel and the host free. Both callbacks are non-self-rearming. This issue was found by an in-house static analysis tool.
At a glance
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: not scored yet.
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-98210.md and follow it. Check whether this project is affected by CVE-2026-98210. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- https://git.kernel.org/stable/c/23383e0578b58ba2dc0730cf9f7806bd66bf859a
- https://git.kernel.org/stable/c/314966b490323bdcfd3162a1398b00e587e0ced4
- https://git.kernel.org/stable/c/740f595f8ad678cb4d79f13edd12851df2492bdd
- https://git.kernel.org/stable/c/a1ff367e0dc961d73707add508a95df5c3509bd1
- https://git.kernel.org/stable/c/ae10838a7cdf0e54caa9d0a4f488704fd04e7f01
- https://git.kernel.org/stable/c/d3641afe6ee76d852834a34ef0669eefced32752
- https://git.kernel.org/stable/c/d3a421c82412344022982d5b91ba23194a0a6f29
- https://git.kernel.org/stable/c/e2948c4232209e87c861a680f20f1e3cf8a57fec