Bug 2373401 (CVE-2022-49938) - CVE-2022-49938 kernel: cifs: fix small mempool leak in SMB2_negotiate()
Summary: CVE-2022-49938 kernel: cifs: fix small mempool leak in SMB2_negotiate()
Keywords:
Status: NEW
Alias: CVE-2022-49938
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-18 11:01 UTC by OSIDB Bzimport
Modified: 2025-06-20 13:09 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-06-18 11:01:19 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cifs: fix small mempool leak in SMB2_negotiate()

In some cases of failure (dialect mismatches) in SMB2_negotiate(), after
the request is sent, the checks would return -EIO when they should be
rather setting rc = -EIO and jumping to neg_exit to free the response
buffer from mempool.
Comment 1 Avinash Hanwate 2025-06-20 13:00:37 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061848-CVE-2022-49938-3c2f@gregkh/T
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