CVE-2026-45948 (GCVE-0-2026-45948)
Vulnerability from cvelistv5
Published
2026-05-27 12:18
Modified
2026-05-27 12:18
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix memory leak in ext4_ext_shift_extents()
In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the
function returns immediately without releasing the path obtained via
ext4_find_extent(), leading to a memory leak.
Fix this by jumping to the out label to ensure the path is properly
released.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 Version: a18ed359bdddcded4f97ff5e2f07793ff9336913 |
||
{
"containers": {
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"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.15"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.252",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.202",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.165",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.128",
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},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.75",
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},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.14",
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},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.4",
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},
{
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"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix memory leak in ext4_ext_shift_extents()\n\nIn ext4_ext_shift_extents(), if the extent is NULL in the while loop, the\nfunction returns immediately without releasing the path obtained via\next4_find_extent(), leading to a memory leak.\n\nFix this by jumping to the out label to ensure the path is properly\nreleased."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-27T12:18:04.937Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d"
},
{
"url": "https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2"
},
{
"url": "https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f"
},
{
"url": "https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec"
},
{
"url": "https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58"
},
{
"url": "https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1"
},
{
"url": "https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935"
},
{
"url": "https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833"
}
],
"title": "ext4: fix memory leak in ext4_ext_shift_extents()",
"x_generator": {
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}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-45948",
"datePublished": "2026-05-27T12:18:04.937Z",
"dateReserved": "2026-05-13T15:03:33.088Z",
"dateUpdated": "2026-05-27T12:18:04.937Z",
"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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