um: Add winch to winch_handlers before registering winch IRQ
In the Linux kernel, the following vulnerability has been resolved: um: Add winch to winch_handlers before registering winch IRQ Registering a winch IRQ is racy, an interrupt may occur before the winch is added to the winch_handlers list. If that happens, register_winch_irq() adds to that list a winch that is scheduled to be (or has already been) freed, causing a panic later in winch_cleanup(). Avoid the race by adding the winch to the winch_handlers list before registering the IRQ, and rolling back if um_request_irq() fails.
CVE-2024-39292
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-2024-39292
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": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "66ea9a7c6824821476914bed21a476cd20094f33",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "dc1ff95602ee908fcd7d8acee7a0dadb61b1a0c0",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "351d1a64544944b44732f6a64ed65573b00b9e14",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "31960d991e43c8d6dc07245f19fc13398e90ead2",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "0c02d425a2fbe52643a5859a779db0329e7dddd4",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "434a06c38ee1217a8baa0dd7c37cc85d50138fb0",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "73b8e21f76c7dda4905655d2e2c17dc5a73b87f1",
"versionType": "git"
},
{
"status": "affected",
"version": "42a359e31a0e438b5b978a8f0fecdbd3c86bb033",
"lessThan": "a0fbbd36c156b9f7b2276871d499c9943dfe5101",
"versionType": "git"
}
],
"programFiles": [
"arch/um/drivers/line.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.23"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.23",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.316",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.278",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.219",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.161",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.93",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.33",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.9.4",
"versionType": "semver",
"lessThanOrEqual": "6.9.*"
},
{
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/um/drivers/line.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-39292
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26626 · Revision 1
- Added to Heist Feed
- Publisher date