Unrated
fs: sysfs: Fix reference leak in sysfs_break_active_protection()
In the Linux kernel, the following vulnerability has been resolved: fs: sysfs: Fix reference leak in sysfs_break_active_protection() The sysfs_break_active_protection() routine has an obvious reference leak in its error path. If the call to kernfs_find_and_get() fails then kn will be NULL, so the companion sysfs_unbreak_active_protection() routine won't get called (and would only cause an access violation by trying to dereference kn->parent if it was called). As a result, the reference to kobj acquired at the start of the function will never be released. Fix the leak by adding an explicit kobject_put() call when kn is NULL.
Announced Source revision 1
Original source ↗CVE-2024-26993
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-2024-26993
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": "2afc9166f79b8f6da5f347f48515215ceee4ae37",
"lessThan": "f28bba37fe244889b81bb5c508d3f6e5c6e342c5",
"versionType": "git"
},
{
"status": "affected",
"version": "2afc9166f79b8f6da5f347f48515215ceee4ae37",
"lessThan": "57baab0f376bec8f54b0fe6beb8f77a57c228063",
"versionType": "git"
},
{
"status": "affected",
"version": "2afc9166f79b8f6da5f347f48515215ceee4ae37",
"lessThan": "84bd4c2ae9c3d0a7d3a5c032ea7efff17af17e17",
"versionType": "git"
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{
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{
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{
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{
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{
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{
"status": "affected",
"version": "e8a37b2fd5b5087bec6cbbf6946ee3caa712953b",
"versionType": "git"
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{
"status": "affected",
"version": "a6abc93760dd07fcd29760b70e6e7520f22cb288",
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{
"status": "affected",
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"versionType": "git"
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{
"status": "affected",
"version": "8a5e02a0f46ea33ed19e48e096a8e8d28e73d10a",
"versionType": "git"
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{
"status": "affected",
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{
"status": "affected",
"version": "807d1d299a04e9ad9a9dac55419c1137a105254b",
"versionType": "git"
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{
"status": "affected",
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{
"status": "affected",
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{
"status": "affected",
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"lessThan": "4.5",
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},
{
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"version": "4.9.125",
"lessThan": "4.10",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.14.68",
"lessThan": "4.15",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.18.6",
"lessThan": "4.19",
"versionType": "semver"
}
],
"programFiles": [
"fs/sysfs/file.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.313",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.275",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.216",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.157",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.88",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.29",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.8.8",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/sysfs/file.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-26993
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26475 · Revision 1
- Added to Heist Feed
- Publisher date