mmc: via-sdmmc: cancel card-detect work on remove
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: cancel card-detect work on remove Disabling the device interrupt and freeing the IRQ prevents new card-detect work from being queued, but carddet_work already queued by the handler can still run after via_sd_remove() returns. via_sdc_card_detect() recovers the host through container_of() and dereferences its MMIO base; once remove() returns the host can be freed, so that work would touch freed memory. Cancel carddet_work after freeing the IRQ and before cancelling finish_bh_work, which the card-detect handler can also queue. carddet_work can re-enable the interrupt through via_reset_pcictrl(); mask it again afterwards. This issue was found by an in-house static analysis tool and confirmed by manual code review.
CVE-2026-89441
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89441
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00",
"lessThan": "55d71c70f11d9f92c7d2653774001e98cb509deb",
"versionType": "git"
},
{
"status": "affected",
"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00",
"lessThan": "0a3c70191868fb007c03ff79693ad4e4b3fdcbb8",
"versionType": "git"
},
{
"status": "affected",
"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00",
"lessThan": "f7ff3027ef004a331ef911a4886f12bc2e996037",
"versionType": "git"
},
{
"status": "affected",
"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00",
"lessThan": "eaca730c6f5e3609df62a0469fb789235a93d276",
"versionType": "git"
},
{
"status": "affected",
"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00",
"lessThan": "57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5",
"versionType": "git"
}
],
"programFiles": [
"drivers/mmc/host/via-sdmmc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.31"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.31",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/mmc/host/via-sdmmc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89441
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46658 · Revision 1
- Added to Heist Feed
- Publisher date