FKIE_CVE-2026-93811
Vulnerability from fkie_nvd - Published: 2026-09-24 17:17 - Updated: 2026-10-03 11:17| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"fs/smb/server/vfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "f46a70a082bdbfecbe074af8a719c26c4deb58c6",
"status": "affected",
"version": "cb69d4d6f709f87c94afa28ae64c501576692171",
"versionType": "git"
},
{
"lessThan": "86c2625fb9863139b359805fc6be1e31edbd3d65",
"status": "affected",
"version": "8f0541186e9ad1b62accc9519cc2b7a7240272a7",
"versionType": "git"
},
{
"lessThan": "edc17db83085624a2b1bacf6a4521d7f15571737",
"status": "affected",
"version": "8f0541186e9ad1b62accc9519cc2b7a7240272a7",
"versionType": "git"
},
{
"lessThan": "c3836f55e0dab96314774215e12d87f63fa919f2",
"status": "affected",
"version": "8f0541186e9ad1b62accc9519cc2b7a7240272a7",
"versionType": "git"
},
{
"lessThan": "6e6329322ad733c5b23555c609353841560b26bc",
"status": "affected",
"version": "8f0541186e9ad1b62accc9519cc2b7a7240272a7",
"versionType": "git"
},
{
"lessThan": "d708a36634bb7b6f94d0e76d587d2ec50b2b93b5",
"status": "affected",
"version": "8f0541186e9ad1b62accc9519cc2b7a7240272a7",
"versionType": "git"
},
{
"status": "affected",
"version": "6e8f4abf584253cbaa596ea4ad13110cf61cd4c9",
"versionType": "git"
},
{
"status": "affected",
"version": "8e33102309bd6839b2e2e158f93a7b378cb4655d",
"versionType": "git"
},
{
"lessThan": "5.15.222",
"status": "affected",
"version": "5.15.62",
"versionType": "semver"
},
{
"lessThan": "5.19",
"status": "affected",
"version": "5.18.18",
"versionType": "semver"
},
{
"lessThan": "5.20",
"status": "affected",
"version": "5.19.2",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"fs/smb/server/vfs.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"lessThan": "6.0",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling\n\n1. When ndr_decode_v4_ntacl() fails, the code jumped to free_n_data\n which only freed n.data, skipping kfree(acl.sd_buf) and leaking\n the buffer. Zero-initialize struct xattr_ntacl acl, reorder error\n labels to out_free to release acl.sd_buf on all error paths.\n\n2. if (acl.sd_size \u003c sizeof(struct smb_ntsd)) is true, original code\n returned success without freeing sd_buf and left stale *pntsd.\n Set rc = -EINVAL before jumping to out_free to return error code and\n free buffer."
}
],
"id": "CVE-2026-93811",
"lastModified": "2026-10-03T11:17:50.870",
"metrics": {},
"published": "2026-09-24T17:17:14.550",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6e6329322ad733c5b23555c609353841560b26bc"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/86c2625fb9863139b359805fc6be1e31edbd3d65"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c3836f55e0dab96314774215e12d87f63fa919f2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d708a36634bb7b6f94d0e76d587d2ec50b2b93b5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/edc17db83085624a2b1bacf6a4521d7f15571737"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f46a70a082bdbfecbe074af8a719c26c4deb58c6"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
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- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
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