In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix query_info() replay double-free

A response-bearing attempt can return a replayable error and free its
response buffer. If SMB2_query_info_init() fails before the next send,
cleanup retains the previous buffer type and frees that response again.

Reset response bookkeeping before each attempt to prevent the stale free.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00209.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
433042a91f9373241307725b52de573933ffedbf affected < 100fb7c455fa86d248b8bd7bb9de757c192870b4
4f1fffa2376922f3d1d506e49c0fd445b023a28e affected < 3c81dda84799f76b42aec598564316e2964440db
4f1fffa2376922f3d1d506e49c0fd445b023a28e affected < f1add4acb656f5a82806a1ab0e63fed3d8b1bfca
4f1fffa2376922f3d1d506e49c0fd445b023a28e affected < 89234773e8348918111aa15f6922b58cf3843364
4f1fffa2376922f3d1d506e49c0fd445b023a28e affected < 2a88561d66eb855813cf004a0abe648bbb17de5e
6.6.32 affected < 6.6.145
Linux Linux affected
Version Status Constraints
6.8 affected —
0 unaffected < 6.8
6.6.145 unaffected ≤ 6.6.*
6.12.96 unaffected ≤ 6.12.*
6.18.39 unaffected ≤ 6.18.*
7.1.4 unaffected ≤ 7.1.*
7.2-rc1 unaffected ≤ *

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/100fb7c455fa86d248b8bd7bb9de757c192870b4 cve-icon
https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e cve-icon
https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db cve-icon
https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364 cve-icon
https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca cve-icon
History

Sat, 25 Jul 2026 09:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.
Title smb: client: fix query_info() replay double-free
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-25T08:50:34.729Z

Reserved: 2026-07-19T15:36:31.784Z

Link: CVE-2026-64386

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-25T16:15:18Z

Weaknesses

No weakness.