Bug 2419887 (CVE-2025-40286) - CVE-2025-40286 kernel: smb/server: fix possible memory leak in smb2_read()
Summary: CVE-2025-40286 kernel: smb/server: fix possible memory leak in smb2_read()
Keywords:
Status: NEW
Alias: CVE-2025-40286
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-08 07:06 UTC by OSIDB Bzimport
Modified: 2025-12-08 22:47 UTC (History)
0 users

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Description OSIDB Bzimport 2025-12-08 07:06:21 UTC 
In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix possible memory leak in smb2_read()

Memory leak occurs when ksmbd_vfs_read() fails.
Fix this by adding the missing kvfree().
Comment 1 Jon Moroney 2025-12-08 22:43:34 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120718-CVE-2025-40286-1b9c@gregkh/T
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