------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:2732! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2851 Comm: syz-executor.0 Tainted: G W 5.4.180-syzkaller-00002-gb730087e9a5d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mpage_prepare_extent_to_map+0xa9f/0xab0 fs/ext4/inode.c:2732 Code: 4c 89 f7 e8 23 75 d1 ff e9 3d f7 ff ff 0f 8f e7 fe ff ff 48 8d bc 24 98 00 00 00 e8 0b 75 d1 ff e9 d5 fe ff ff e8 11 15 a5 ff <0f> 0b e8 0a 15 a5 ff 0f 0b e8 83 57 7e ff 0f 1f 00 55 41 57 41 56 RSP: 0018:ffff8881e598f990 EFLAGS: 00010293 RAX: ffffffff81bb29cf RBX: 0000000000000000 RCX: ffff8881e4066e40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff81bb26b0 R09: fffff94000d70301 R10: fffff94000d70301 R11: 1ffffd4000d70300 R12: ffffea0006b81800 R13: dffffc0000000000 R14: ffff8881e598fc68 R15: 7fffffffffffffff FS: 00007ff123bdc700(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555572df098 CR3: 00000001af6cc000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_writepages+0xd98/0x3590 fs/ext4/inode.c:2861 do_writepages+0xda/0x1f0 mm/page-writeback.c:2344 __filemap_fdatawrite_range mm/filemap.c:421 [inline] file_write_and_wait_range+0x2cd/0x360 mm/filemap.c:782 ext4_sync_file+0x1ba/0xc70 fs/ext4/fsync.c:126 vfs_fsync_range fs/sync.c:199 [inline] vfs_fsync fs/sync.c:213 [inline] do_fsync fs/sync.c:223 [inline] __do_sys_fdatasync fs/sync.c:237 [inline] __se_sys_fdatasync fs/sync.c:235 [inline] __x64_sys_fdatasync+0xb1/0x130 fs/sync.c:235 do_syscall_64+0xcb/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7ff124a660e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007ff123bdc168 EFLAGS: 00000246 ORIG_RAX: 000000000000004b RAX: ffffffffffffffda RBX: 00007ff124b78f60 RCX: 00007ff124a660e9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007ff124ac008d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe128168bf R14: 00007ff123bdc300 R15: 0000000000022000 Modules linked in: ---[ end trace 097a684d8f79b6df ]--- RIP: 0010:mpage_prepare_extent_to_map+0xa9f/0xab0 fs/ext4/inode.c:2732 Code: 4c 89 f7 e8 23 75 d1 ff e9 3d f7 ff ff 0f 8f e7 fe ff ff 48 8d bc 24 98 00 00 00 e8 0b 75 d1 ff e9 d5 fe ff ff e8 11 15 a5 ff <0f> 0b e8 0a 15 a5 ff 0f 0b e8 83 57 7e ff 0f 1f 00 55 41 57 41 56 RSP: 0018:ffff8881e598f990 EFLAGS: 00010293 RAX: ffffffff81bb29cf RBX: 0000000000000000 RCX: ffff8881e4066e40 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff81bb26b0 R09: fffff94000d70301 R10: fffff94000d70301 R11: 1ffffd4000d70300 R12: ffffea0006b81800 R13: dffffc0000000000 R14: ffff8881e598fc68 R15: 7fffffffffffffff FS: 00007ff123bdc700(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8e6ab095a8 CR3: 00000001af6cc000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400