CVE-2023-53732
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix NULL dereference in ni_write_inode Syzbot reports a NULL dereference in ni_write_inode. When creating a new inode, if allocation fails in mi_init function (called in mi_format_new function), mi->mrec is set to NULL. In the error path of this inode creation, mi->mrec is later dereferenced in ni_write_inode. Add a NULL check to prevent NULL dereference.
Affected versions
Linux kernel versions
5.15
and later are affected. Fixed in
5.15.113,
6.1.81,
6.3.4,
6.4
and their respective stable series.
References
The following references provide additional information about CVE-2023-53732 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/8dae4f6341e335a09575be60b4fdf697c732a470
-
PatchKernel patch commithttps://git.kernel.org/stable/c/b1135fbaf8ebef93df326761ac70ebcc3c2e3d63
-
PatchKernel patch commithttps://git.kernel.org/stable/c/b3152afc0eb864f7c6ecad134a15b577ef7aec77
Frequently asked questions
-
What is CVE-2023-53732?
CVE-2023-53732 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.15 onward and has been patched in 5.15.113, 6.1.81, 6.3.4 and others. CVE-2023-53732 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2023-53732?
Yes — CVE-2023-53732 has been patched. Fixed versions include 5.15.113, 6.1.81, 6.3.4 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2023-53732 actively exploited?
No — CVE-2023-53732 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.