Bug 2396406 (CVE-2023-53381) - CVE-2023-53381 kernel: NFSD: fix leaked reference count of nfsd4_ssc_umount_item
Summary: CVE-2023-53381 kernel: NFSD: fix leaked reference count of nfsd4_ssc_umount_item
Keywords:
Status: NEW
Alias: CVE-2023-53381
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-09-18 14:03 UTC by OSIDB Bzimport
Modified: 2025-09-18 16:45 UTC (History)
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Description OSIDB Bzimport 2025-09-18 14:03:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFSD: fix leaked reference count of nfsd4_ssc_umount_item

The reference count of nfsd4_ssc_umount_item is not decremented
on error conditions. This prevents the laundromat from unmounting
the vfsmount of the source file.

This patch decrements the reference count of nfsd4_ssc_umount_item
on error.
Comment 1 Keith Grant 2025-09-18 16:43:11 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091856-CVE-2023-53381-a774@gregkh/T
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