smb: client: clean up failed cached directory opens
In the Linux kernel, the following vulnerability has been resolved: smb: client: clean up failed cached directory opens open_cached_dir() sends CREATE and QUERY_INFO as a compound request. If the CREATE succeeds but a later command returns an error, the function must retain the CREATE FID so common cleanup can issue SMB2_close(). It also must not treat a response error as a valid CREATE. Validate the CREATE response before using its fields, record the FIDs, and mark the handle open before handling errors from later compound commands. Move the -EREMCHG reconnect handling before response validation so a missing response does not hide the reconnect request. Count the handle when it is marked open; confirmed close responses decrement the counter, while existing close retry behavior remains best effort on transport failures.
CVE-2026-98452
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-2026-98452
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": "b0f6df737a1c5d9d5ff90cc946205d8af46cc067",
"lessThan": "48958ddda3d7eee3600261e2d90671f63e055dc4",
"versionType": "git"
},
{
"status": "affected",
"version": "b0f6df737a1c5d9d5ff90cc946205d8af46cc067",
"lessThan": "abab661eed00fa102d3c35ddf1cce4f687e718c1",
"versionType": "git"
},
{
"status": "affected",
"version": "b0f6df737a1c5d9d5ff90cc946205d8af46cc067",
"lessThan": "7c1509598a4fdfb54cb09ce33e4405bd6dbd8295",
"versionType": "git"
},
{
"status": "affected",
"version": "b0f6df737a1c5d9d5ff90cc946205d8af46cc067",
"lessThan": "d2ff5fb93ea83034025850266b5eed391f96b825",
"versionType": "git"
}
],
"programFiles": [
"fs/smb/client/cached_dir.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/smb/client/cached_dir.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98452
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38509 · Revision 1
- Added to Heist Feed
- Publisher date