CVE-2026-68422 (GCVE-0-2026-68422)
Vulnerability from cvelistv5
Published
2026-08-10 12:04
Modified
2026-08-19 16:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()
If we have an unexpected reloc_root for our root, we jump to the out label
but never drop the reference we obtained for root, resulting in a leak.
Add a missing btrfs_put_root() call.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 Version: 24213fa46c7080c31d79aa2e3e2f0d9480cab700 |
||
{
"containers": {
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"programFiles": [
"fs/btrfs/relocation.c"
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],
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"vendor": "Linux",
"versions": [
{
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},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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},
{
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],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()\n\nIf we have an unexpected reloc_root for our root, we jump to the out label\nbut never drop the reference we obtained for root, resulting in a leak.\nAdd a missing btrfs_put_root() call."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:35:17.540Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f89df93e8aefa4c1c813f835559f2ac727f79766"
},
{
"url": "https://git.kernel.org/stable/c/3f586b4c92e4272fcd01bf0db0590b63acf3e85b"
},
{
"url": "https://git.kernel.org/stable/c/b3d39b03799600c76c33486e2d29b73a771023db"
},
{
"url": "https://git.kernel.org/stable/c/72f673d1c1deb819554d3e7e154f6d84301eb735"
},
{
"url": "https://git.kernel.org/stable/c/60a23d4ea169e27403f3bb023bb98036797c0206"
},
{
"url": "https://git.kernel.org/stable/c/7591d1727067d6063247901ad25c4bdc4e5695c4"
},
{
"url": "https://git.kernel.org/stable/c/ce6050bafb4e33377dc17fcc357736bfc351180c"
}
],
"title": "btrfs: fix root leak if its reloc root is unexpected in merge_reloc_roots()",
"x_generator": {
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}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68422",
"datePublished": "2026-08-10T12:04:42.949Z",
"dateReserved": "2026-07-30T09:28:09.392Z",
"dateUpdated": "2026-08-19T16:35:17.540Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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