CVE-2023-53988

Summary

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de()

Here is a BUG report from syzbot:

BUG: KASAN: slab-out-of-bounds in hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806 Read of size 16842960 at addr ffff888079cc0600 by task syz-executor934/3631

Call Trace: memmove+0x25/0x60 mm/kasan/shadow.c:54 hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806 indx_delete_entry+0x74f/0x3670 fs/ntfs3/index.c:2193 ni_remove_name+0x27a/0x980 fs/ntfs3/frecord.c:2910 ntfs_unlink_inode+0x3d4/0x720 fs/ntfs3/inode.c:1712 ntfs_rename+0x41a/0xcb0 fs/ntfs3/namei.c:276

Before using the meta-data in struct INDEX_HDR, we need to check index header valid or not. Otherwise, the corruptedi (or malicious) fs image can cause out-of-bounds access which could make kernel panic.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux82cae269cfa953032fbb8980a7d554d60fb00b17 < c58ea97aa94f033ee64a8cb6587d84a9849b6216affected
LinuxLinux82cae269cfa953032fbb8980a7d554d60fb00b17 < 9163a5b4ed290da4a7d23fa92533e0e81fd0166eaffected
LinuxLinux82cae269cfa953032fbb8980a7d554d60fb00b17 < 114204d25e1dffdd3a0c1cfbba219afd344f4b4faffected
LinuxLinux82cae269cfa953032fbb8980a7d554d60fb00b17 < 4a034ece7e2877673d9085d6e7ed45e6ee40b761affected
LinuxLinux82cae269cfa953032fbb8980a7d554d60fb00b17 < ab84eee4c7ab929996602eda7832854c35a6dda2affected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux5.15.111 <= 5.15.*unaffected
LinuxLinux6.1.28 <= 6.1.*unaffected
LinuxLinux6.2.15 <= 6.2.*unaffected
LinuxLinux6.3.2 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References