loop5: detected capacity change from 0 to 2048 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:2054! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 737 Comm: syz-executor.5 Not tainted 6.1.57-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:__block_commit_write+0x27d/0x280 fs/buffer.c:2054 Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 fb 5c e7 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 03 03 a2 ff <0f> 0b 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 28 4c 89 RSP: 0018:ffffc9000361f768 EFLAGS: 00010293 RAX: ffffffff81d1819d RBX: 0000000000000000 RCX: ffff88810dc36480 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000361f7b8 R08: ffffffff81d17f82 R09: fffff94000938751 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000c R13: 000000000000000c R14: 4800000000000017 R15: ffffea00049c3a80 FS: 00007f57d02af6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007efea80ff000 CR3: 0000000127681000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: block_write_end+0x47/0x90 fs/buffer.c:2144 ext4_write_end+0x218/0x910 fs/ext4/inode.c:1312 ext4_da_write_end+0x88/0x9a0 fs/ext4/inode.c:3060 generic_perform_write+0x3e6/0x5c0 mm/filemap.c:3765 ext4_buffered_write_iter+0x360/0x640 fs/ext4/file.c:285 ext4_file_write_iter+0x194/0x1cf0 call_write_iter include/linux/fs.h:2205 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x893/0xe30 fs/read_write.c:584 ksys_write+0x199/0x2c0 fs/read_write.c:637 __do_sys_write fs/read_write.c:649 [inline] __se_sys_write fs/read_write.c:646 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:646 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: 0033:0x7f57cf47cda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f57d02af0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f57cf5abf80 RCX: 00007f57cf47cda9 RDX: 000000000000000c RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007f57cf4c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f57cf5abf80 R15: 00007ffdb509e2a8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__block_commit_write+0x27d/0x280 fs/buffer.c:2054 Code: ff 48 8b 5d b8 48 89 df be 08 00 00 00 e8 fb 5c e7 ff f0 80 0b 04 48 83 c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 03 03 a2 ff <0f> 0b 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 28 4c 89 RSP: 0018:ffffc9000361f768 EFLAGS: 00010293 RAX: ffffffff81d1819d RBX: 0000000000000000 RCX: ffff88810dc36480 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000361f7b8 R08: ffffffff81d17f82 R09: fffff94000938751 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000000c R13: 000000000000000c R14: 4800000000000017 R15: ffffea00049c3a80 FS: 00007f57d02af6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e8b6ff000 CR3: 0000000127681000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400