loop5: detected capacity change from 0 to 8192 ntfs3: loop5: Different NTFS' sector size (4096) 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 1d5ec067 P4D 1d5ec067 PUD 7e4e9067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12878 Comm: syz-executor.5 Not tainted 6.1.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900142cf5b8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: ffff88807ce1e288 RSI: 0000000000000000 RDI: ffffffff8b26c020 RBP: ffffc900142cf7f0 R08: ffff888075408000 R09: ffffc900142cf9a0 R10: fffffbfff1cebeae R11: 1ffffffff1cebead R12: ffff888075408000 R13: 0000000000000138 R14: dffffc0000000000 R15: ffff88807ce1e278 FS: 00007f120ede6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000000283ca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hdr_find_e+0x2f2/0x580 fs/ntfs3/index.c:708 indx_find+0x30d/0xb20 fs/ntfs3/index.c:1068 dir_search_u+0x161/0x320 fs/ntfs3/dir.c:254 ntfs_extend_init+0x1b4/0x5a0 fs/ntfs3/fsntfs.c:214 ntfs_fill_super+0x3f20/0x42a0 fs/ntfs3/super.c:1243 get_tree_bdev+0x400/0x620 fs/super.c:1324 vfs_get_tree+0x88/0x270 fs/super.c:1531 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2d3/0x3c0 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: 0033:0x7f120e08d60a 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:00007f120ede5f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000020bb3 RCX: 00007f120e08d60a RDX: 0000000020020bc0 RSI: 0000000020020c00 RDI: 00007f120ede5fe0 RBP: 00007f120ede6020 R08: 00007f120ede6020 R09: 0000000000000452 R10: 0000000000000452 R11: 0000000000000202 R12: 0000000020020bc0 R13: 0000000020020c00 R14: 00007f120ede5fe0 R15: 0000000020000180 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900142cf5b8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: ffff88807ce1e288 RSI: 0000000000000000 RDI: ffffffff8b26c020 RBP: ffffc900142cf7f0 R08: ffff888075408000 R09: ffffc900142cf9a0 R10: fffffbfff1cebeae R11: 1ffffffff1cebead R12: ffff888075408000 R13: 0000000000000138 R14: dffffc0000000000 R15: ffff88807ce1e278 FS: 00007f120ede6700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000000283ca000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400