smb: client: fix smbd_connection leak on cifs_get_tcp_session() error
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix smbd_connection leak on cifs_get_tcp_session() error When an RDMA connection is successfully established via smbd_get_connection() but cifs_get_tcp_session() later fails (e.g. kthread_create() returns an error), the error path frees tcp_ses without first destroying the smbd_connection. Fix this by calling smbd_destroy() in the out_err cleanup path before kfree(tcp_ses). smbd_destroy() safely handles the case where smbd_conn is NULL, so it can be called unconditionally.
CVE-2026-98172
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-2026-98172
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": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "3164402c58940ff58a3cecdb026405f07b0253af",
"versionType": "git"
},
{
"status": "affected",
"version": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "e3344bb0ff5ec8a276f42239e140f5442841ef23",
"versionType": "git"
},
{
"status": "affected",
"version": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "5c908e49d349266dff0c86dda6a05df0ff19b824",
"versionType": "git"
},
{
"status": "affected",
"version": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "928edc4bd6a617caabeb575fc13c254d9df623c4",
"versionType": "git"
},
{
"status": "affected",
"version": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "b26a3fcf2f1c2cadba400290b639f01395db8fc8",
"versionType": "git"
},
{
"status": "affected",
"version": "2f8946464b11822169b9f10c7cf58a2440b51d54",
"lessThan": "e75c96157d45e498970158c8f7373d90102e33b9",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/client/connect.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/connect.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98172
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38257 · Revision 1
- Added to Heist Feed
- Publisher date