RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000008 R10: 0000000000004000 R11: 0000000000000246 R12: 00007ffee9c289bc R13: 0000000000000002 R14: 431bde82d7b634db R15: 00007ffee9c28a00 BTRFS warning (device loop0): direct IO failed ino 263 op 0x8801 offset 0x4000 len 4096 err no 9 general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067] CPU: 0 PID: 5072 Comm: syz-executor267 Not tainted 6.5.0-rc1-syzkaller-00152-g4b810bf037e5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:btrfs_finish_ordered_extent+0x3c/0x2a0 fs/btrfs/ordered-data.c:375 Code: 55 44 89 c5 53 48 89 fb 48 83 ec 08 48 89 34 24 e8 39 d7 0c fe 48 8d 7b 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 33 02 00 00 4c 8b 6b 60 40 0f b6 ed 0f 1f 44 00 RSP: 0018:ffffc90003c1f4b8 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000000c RSI: ffffffff83799767 RDI: 0000000000000060 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000009 R11: 0000000000000001 R12: ffff88802999c100 R13: 0000000000004000 R14: 0000000000004000 R15: 0000000000001000 FS: 0000555555fee380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4acf86c100 CR3: 0000000023465000 CR4: 0000000000350ef0 Call Trace: btrfs_dio_end_io+0x235/0x4b0 fs/btrfs/inode.c:7810 btrfs_dio_submit_io+0x454/0x720 fs/btrfs/inode.c:7853 iomap_dio_submit_bio+0x194/0x210 fs/iomap/direct-io.c:75 iomap_dio_bio_iter+0x7ac/0x1460 fs/iomap/direct-io.c:347 iomap_dio_iter fs/iomap/direct-io.c:430 [inline] __iomap_dio_rw+0xd10/0x1da0 fs/iomap/direct-io.c:575 btrfs_dio_write+0xb1/0xe0 fs/btrfs/inode.c:7884 btrfs_direct_write fs/btrfs/file.c:1526 [inline] btrfs_do_write_iter+0x995/0x11a0 fs/btrfs/file.c:1667 call_write_iter include/linux/fs.h:1871 [inline] do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735 do_iter_write+0x17f/0x830 fs/read_write.c:860 vfs_writev+0x221/0x700 fs/read_write.c:933 do_pwritev+0x1af/0x260 fs/read_write.c:1030 __do_sys_pwritev2 fs/read_write.c:1089 [inline] __se_sys_pwritev2 fs/read_write.c:1080 [inline] __x64_sys_pwritev2+0xef/0x150 fs/read_write.c:1080 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4acf7ef329 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007ffee9c28988 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007ffee9c289c0 RCX: 00007f4acf7ef329 RDX: 0000000000000002 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000008 R10: 0000000000004000 R11: 0000000000000246 R12: 00007ffee9c289bc R13: 0000000000000002 R14: 431bde82d7b634db R15: 00007ffee9c28a00 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:btrfs_finish_ordered_extent+0x3c/0x2a0 fs/btrfs/ordered-data.c:375 Code: 55 44 89 c5 53 48 89 fb 48 83 ec 08 48 89 34 24 e8 39 d7 0c fe 48 8d 7b 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 33 02 00 00 4c 8b 6b 60 40 0f b6 ed 0f 1f 44 00 RSP: 0018:ffffc90003c1f4b8 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000000c RSI: ffffffff83799767 RDI: 0000000000000060 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000009 R11: 0000000000000001 R12: ffff88802999c100 R13: 0000000000004000 R14: 0000000000004000 R15: 0000000000001000 FS: 0000555555fee380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4acf86c100 CR3: 0000000023465000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 55 push %rbp 1: 44 89 c5 mov %r8d,%ebp 4: 53 push %rbx 5: 48 89 fb mov %rdi,%rbx 8: 48 83 ec 08 sub $0x8,%rsp c: 48 89 34 24 mov %rsi,(%rsp) 10: e8 39 d7 0c fe call 0xfe0cd74e 15: 48 8d 7b 60 lea 0x60(%rbx),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 33 02 00 00 jne 0x267 34: 4c 8b 6b 60 mov 0x60(%rbx),%r13 38: 40 0f b6 ed movzbl %bpl,%ebp 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 44 rex.R