CVE-2026-89441Medium· 5.5▾ SunlitA flaw was found in the Linux kernel, specifically within the `mmc: via-sdmmc` driver responsible for managing SD and MultiMediaCard (MMC) devices. This vulnerability occurs during device removal, where a timing issue allows a process to a…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
— → 4.1
— → 4.1
none → medium
— → 7.8
none → high
Last analysed / modified upstream
7.8 → 4.1
high → medium
4.1 → 7.8
medium → high
7.8 → 4.1
high → medium
4.1 → 5.5
A flaw was found in the Linux kernel, specifically within the mmc: via-sdmmc driver responsible for managing SD and MultiMediaCard (MMC) devices. This vulnerability occurs during device removal, where a timing issue allows a process to attempt to access memory that has already been released. This unauthorized memory access can lead to system instability or cause the system to crash, resulting in a denial of service.
kernel: mmc: via-sdmmc: cancel card-detect work on remove — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.
Affected:
No fix planned:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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