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kernel BUG at fs/ext4/inode.c:2705!
invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 PID: 9921 Comm: syz-executor.6 Not tainted 5.10.60 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:ext4_writepages+0x2b93/0x36e0 fs/ext4/inode.c:2705
Code: 31 db 89 85 c0 fd ff ff e9 44 f9 ff ff e8 65 e0 a2 ff 89 9d c0 fd ff ff 44 0f b6 a5 03 fd ff ff e9 77 e8 ff ff e8 4d e0 a2 ff <0f> 0b e8 46 e0 a2 ff 41 83 cd 01 be 04 00 00 00 48 8d bb b0 05 00
RSP: 0018:ffff88804ef3f560 EFLAGS: 00010212
RAX: 0000000000000909 RBX: 0000000000000001 RCX: ffffc90007c29000
RDX: 0000000000040000 RSI: ffffffff819c7e63 RDI: 0000000000000007
RBP: ffff88804ef3f8c0 R08: 0000000000000000 R09: ffff88801d7462c7
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801d7462c0
R13: 0000000000000001 R14: ffff88801d7465a8 R15: 00000000000000bc
FS:  00007f2d34569700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53800986f4 CR3: 0000000040f20000 CR4: 0000000000350ef0
Call Trace:
 do_writepages+0xfc/0x2a0 mm/page-writeback.c:2352
 __filemap_fdatawrite_range+0x247/0x2f0 mm/filemap.c:422
 file_write_and_wait_range+0xb2/0x120 mm/filemap.c:761
 ext4_sync_file+0x225/0xf30 fs/ext4/fsync.c:151
 vfs_fsync_range+0x13d/0x220 fs/sync.c:200
 generic_write_sync include/linux/fs.h:2739 [inline]
 ext4_buffered_write_iter+0x36a/0x4d0 fs/ext4/file.c:278
 ext4_file_write_iter+0x3c0/0x18b0 fs/ext4/file.c:681
 call_write_iter include/linux/fs.h:1903 [inline]
 new_sync_write+0x427/0x650 fs/read_write.c:518
 vfs_write+0x759/0xa50 fs/read_write.c:605
 ksys_write+0x12d/0x250 fs/read_write.c:658
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x466609
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2d34569188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 0000000000466609
RDX: 0000000000000041 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0
R13: 00007ffc8f30644f R14: 00007f2d34569300 R15: 0000000000022000
Modules linked in:
---[ end trace 2b922171cb3aed8b ]---
RIP: 0010:ext4_writepages+0x2b93/0x36e0 fs/ext4/inode.c:2705
Code: 31 db 89 85 c0 fd ff ff e9 44 f9 ff ff e8 65 e0 a2 ff 89 9d c0 fd ff ff 44 0f b6 a5 03 fd ff ff e9 77 e8 ff ff e8 4d e0 a2 ff <0f> 0b e8 46 e0 a2 ff 41 83 cd 01 be 04 00 00 00 48 8d bb b0 05 00
RSP: 0018:ffff88804ef3f560 EFLAGS: 00010212
RAX: 0000000000000909 RBX: 0000000000000001 RCX: ffffc90007c29000
RDX: 0000000000040000 RSI: ffffffff819c7e63 RDI: 0000000000000007
RBP: ffff88804ef3f8c0 R08: 0000000000000000 R09: ffff88801d7462c7
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801d7462c0
R13: 0000000000000001 R14: ffff88801d7465a8 R15: 00000000000000bc
FS:  00007f2d34569700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53800986f4 CR3: 0000000040f20000 CR4: 0000000000350ef0
FAT-fs (loop0): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)