GHSA-8G43-4633-H8MF
Vulnerability from github – Published: 2026-10-18 18:31 – Updated: 2026-10-30 15:33In the Linux kernel, the following vulnerability has been resolved:
smb: client: close handle after create-context parsing failure
SMB2_open() accounts a successful CREATE response as a remote open before parsing its create contexts. If smb2_parse_contexts() rejects malformed context data, SMB2_open() returns without closing the handle, leaving the server-side handle open and num_remote_opens elevated.
Close the handle after a post-CREATE context parsing failure so the error path releases the remote resource and balances the open count.
{
"affected": [],
"aliases": [
"CVE-2026-98453"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:16:55Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: close handle after create-context parsing failure\n\nSMB2_open() accounts a successful CREATE response as a remote open before\nparsing its create contexts. If smb2_parse_contexts() rejects malformed\ncontext data, SMB2_open() returns without closing the handle, leaving the\nserver-side handle open and num_remote_opens elevated.\n\nClose the handle after a post-CREATE context parsing failure so the error\npath releases the remote resource and balances the open count.",
"id": "GHSA-8g43-4633-h8mf",
"modified": "2026-10-30T15:33:53Z",
"published": "2026-10-18T18:31:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98453"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/007b87f6a7c38959ed79cf7d3fd7b3b4eb5f67fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d4c05b5cb0a3132453e36a300d45de44bf6783c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eaa97a196a107d4ef8775df2248181624151812e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ee61f1dc516d97afa79908140d0a8c556c2fe90c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45"
}
],
"schema_version": "1.4.0",
"severity": []
}
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