ntfs3: loop2: Different NTFS' sector size (2048) and media sector size (512) BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 1a3e7067 P4D 1a3e7067 PUD 74604067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10413 Comm: syz-executor.2 Not tainted 6.1.30-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900153bf598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: ffff88801fa9e280 RSI: 0000000000000000 RDI: ffffffff8b1e31a0 RBP: ffffc900153bf7d0 R08: ffff888060098000 R09: ffffc900153bf640 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff88801fa9e270 R14: dffffc0000000000 R15: 0000000000000138 FS: 00007fadc100b700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000005d4de000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hdr_find_e+0x33a/0x600 fs/ntfs3/index.c:712 indx_find+0x313/0xb00 fs/ntfs3/index.c:1082 dir_search_u+0x1b3/0x390 fs/ntfs3/dir.c:254 ntfs_extend_init+0x191/0x530 fs/ntfs3/fsntfs.c:214 ntfs_fill_super+0x4162/0x4500 fs/ntfs3/super.c:1243 get_tree_bdev+0x3fe/0x620 fs/super.c:1346 vfs_get_tree+0x88/0x270 fs/super.c:1553 do_new_mount+0x28b/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fadc028d69a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fadc100af88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 000000000001f3b6 RCX: 00007fadc028d69a RDX: 0000000020000180 RSI: 0000000020000040 RDI: 00007fadc100afe0 RBP: 00007fadc100b020 R08: 00007fadc100b020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000180 R13: 0000000020000040 R14: 00007fadc100afe0 R15: 00000000200001c0 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900153bf598 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: ffff88801fa9e280 RSI: 0000000000000000 RDI: ffffffff8b1e31a0 RBP: ffffc900153bf7d0 R08: ffff888060098000 R09: ffffc900153bf640 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: ffff88801fa9e270 R14: dffffc0000000000 R15: 0000000000000138 FS: 00007fadc100b700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 000000005d4de000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400