mmc: hsq: Fix use-after-free in retry work
In the Linux kernel, the following vulnerability has been resolved: mmc: hsq: Fix use-after-free in retry work mmc_hsq_pump_requests() queues retry_work when request_atomic() returns -EBUSY; today sdhci-sprd is the only consumer that implements request_atomic(). The work is embedded in a devm-allocated mmc_hsq, but is never cancelled during driver removal. Work still pending at unbind can therefore run after the devm allocation has been released and dereference hsq->mmc and hsq->mrq. Use devm_work_autocancel() to cancel and drain retry_work before the devm allocation is released. By the time devres cleanup begins, mmc_remove_host() has already stopped the host, so no new requests can arm the work. This issue was found by an in-house static analysis tool.
CVE-2026-98212
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-2026-98212
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": "6db96e5810e0a6a345b7d78549de7676ae5b2662",
"lessThan": "c50d6515bffb148c2c12be6d587ec201dfab4c34",
"versionType": "git"
},
{
"status": "affected",
"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662",
"lessThan": "df2eb59fd9eb33663dc1053f5a4ed851e0aa1f67",
"versionType": "git"
},
{
"status": "affected",
"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662",
"lessThan": "8439bf262ce3267bcfee29d3c61605f1731a2271",
"versionType": "git"
},
{
"status": "affected",
"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662",
"lessThan": "45341b341642c377192c95e4d48e0a859cf85f42",
"versionType": "git"
},
{
"status": "affected",
"version": "6db96e5810e0a6a345b7d78549de7676ae5b2662",
"lessThan": "5d132990475f02cfa1debe03d50b479432864ebd",
"versionType": "git"
}
],
"programFiles": [
"drivers/mmc/host/mmc_hsq.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"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/mmc_hsq.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98212
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38292 · Revision 1
- Added to Heist Feed
- Publisher date