mmc: mmci: Fix use-after-free in busy-timeout work
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.
CVE-2026-98211
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-2026-98211
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": "b1a665932dc23cad0b8af2745cd9713f9e930d63",
"lessThan": "af6fbf72e899932f330c4e5d0b84d985c922c633",
"versionType": "git"
},
{
"status": "affected",
"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63",
"lessThan": "7fecf79f31568de161be14911db10d1251617b01",
"versionType": "git"
},
{
"status": "affected",
"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63",
"lessThan": "432b98c1f5daecf04a33c8e1688d26e7ac221e23",
"versionType": "git"
},
{
"status": "affected",
"version": "b1a665932dc23cad0b8af2745cd9713f9e930d63",
"lessThan": "2b19cf3e50cddaff07b657dae1a8f30f06032852",
"versionType": "git"
}
],
"programFiles": [
"drivers/mmc/host/mmci.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/mmc/host/mmci.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98211
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38291 · Revision 1
- Added to Heist Feed
- Publisher date