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kernel BUG at fs/ext4/inode.c:2724!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 11172 Comm: syz-executor.3 Tainted: G        W         5.4.147-syzkaller-00015-g5b673be0c6b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mpage_prepare_extent_to_map+0xa8f/0xaa0 fs/ext4/inode.c:2724
Code: 4c 89 f7 e8 63 09 d1 ff e9 4e f7 ff ff 0f 8f e7 fe ff ff 48 8d bc 24 98 00 00 00 e8 4b 09 d1 ff e9 d5 fe ff ff e8 01 ed a3 ff <0f> 0b e8 fa ec a3 ff 0f 0b e8 23 73 7d ff 0f 1f 00 55 41 57 41 56
RSP: 0018:ffff8881b5ed7938 EFLAGS: 00010293
RAX: ffffffff81bce3bf RBX: 0000000000000217 RCX: ffff8881ee115e80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81bce0ac R09: fffff94000cb9a69
R10: fffff94000cb9a69 R11: 0000000000000000 R12: ffffea00065cd340
R13: dffffc0000000000 R14: ffff8881b5ed7c18 R15: ffff8881b5ed7c28
FS:  000055555569e400(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32960a8090 CR3: 00000001da17e000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_writepages+0x1433/0x3cd0 fs/ext4/inode.c:2897
 do_writepages+0xda/0x1f0 mm/page-writeback.c:2344
 __filemap_fdatawrite_range mm/filemap.c:421 [inline]
 __filemap_fdatawrite mm/filemap.c:429 [inline]
 filemap_flush+0x20e/0x2a0 mm/filemap.c:456
 ext4_release_file+0x7e/0x300 fs/ext4/file.c:89
 __fput+0x27d/0x6c0 fs/file_table.c:281
 task_work_run+0x186/0x1b0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:163 [inline]
 prepare_exit_to_usermode+0x2b0/0x310 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f7320b82c2b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007ffdbcc04a40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f7320b82c2b
RDX: 0000000000000000 RSI: 0000001b2da2413c RDI: 0000000000000004
RBP: 00007f7320ce4960 R08: 0000000000000000 R09: 00000000e1c35260
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000259383
R13: 00007ffdbcc04b40 R14: 00007ffdbcc04b60 R15: 0000000000000032
Modules linked in:
---[ end trace c95262b4b2abe19d ]---
RIP: 0010:mpage_prepare_extent_to_map+0xa8f/0xaa0 fs/ext4/inode.c:2724
Code: 4c 89 f7 e8 63 09 d1 ff e9 4e f7 ff ff 0f 8f e7 fe ff ff 48 8d bc 24 98 00 00 00 e8 4b 09 d1 ff e9 d5 fe ff ff e8 01 ed a3 ff <0f> 0b e8 fa ec a3 ff 0f 0b e8 23 73 7d ff 0f 1f 00 55 41 57 41 56
RSP: 0018:ffff8881b5ed7938 EFLAGS: 00010293
RAX: ffffffff81bce3bf RBX: 0000000000000217 RCX: ffff8881ee115e80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81bce0ac R09: fffff94000cb9a69
R10: fffff94000cb9a69 R11: 0000000000000000 R12: ffffea00065cd340
R13: dffffc0000000000 R14: ffff8881b5ed7c18 R15: ffff8881b5ed7c28
FS:  000055555569e400(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31121000 CR3: 00000001da17e000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400