CVE-2023-53732

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < d4b74482529516477cf7b12502538e51827c699faffected
LinuxLinux4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < b3152afc0eb864f7c6ecad134a15b577ef7aec77affected
LinuxLinux4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < b1135fbaf8ebef93df326761ac70ebcc3c2e3d63affected
LinuxLinux4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 8dae4f6341e335a09575be60b4fdf697c732a470affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.113 <= 5.15.*unaffected
LinuxLinux6.1.81 <= 6.1.*unaffected
LinuxLinux6.3.4 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References