program: syz_mount_image$bfs(&(0x7f0000000000), &(0x7f0000000240)='./bus\x00', 0x8008, &(0x7f0000000100)=ANY=[@ANYRES64=0x0], 0xf, 0xab, &(0x7f0000010140)="$eJzs1zGKwkAYBeB/s7CbdptFsLBO4x08ilhqI1aK4A3Ei3gVj5DewiKtiCOYiIidRQT5vmLgzWPgtbM7brubIiKtIlLRme7T3Wy+GA8n9Rl8pCwifiMij4jeX50Pg7r7avqyWo7K6vv58c+69b0AAMDrsug/5nNqLk7NL/Aa/m993vI+AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgHe7BAAA//+dfyiL") r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='rdma.current\x00', 0x275a, 0x0) write$binfmt_script(r0, &(0x7f00000008c0), 0xfecc) (async) r1 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000040), 0x101000, 0x0) close_range(r1, r0, 0x2) (async) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000000c0)='memory.events\x00', 0x275a, 0x0) write$binfmt_script(r2, &(0x7f0000000100), 0xfecc) syz_emit_ethernet(0x8e, &(0x7f0000000200)={@local, @random="86082b9827c1", @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x58, 0x3a, 0x0, @private2, @mcast2, {[], @time_exceed={0x3, 0x0, 0x0, 0x0, '\x00', {0x0, 0x6, '%kT', 0x0, 0x2b, 0x0, @mcast1, @dev, [@srh={0x0, 0x4, 0x4, 0x2, 0x0, 0x0, 0x0, [@rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01', @ipv4={'\x00', '\xff\xff', @loopback}]}]}}}}}}}, 0x0) [ 85.715036][ T5329] loop0: detected capacity change from 0 to 64 [ 85.734233][ T4666] Bluetooth: hci0: command tx timeout [ 85.854632][ T5330] ------------[ cut here ]------------ [ 85.856986][ T5330] WARNING: CPU: 0 PID: 5330 at fs/buffer.c:1183 mark_buffer_dirty+0x2a9/0x410 [ 85.860871][ T5330] Modules linked in: [ 85.862670][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.866606][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.871233][ T5330] RIP: 0010:mark_buffer_dirty+0x2a9/0x410 [ 85.873623][ T5330] Code: 4c 89 f7 e8 b9 06 dd ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 14 ea fb ff e8 ff b8 75 ff eb 8c e8 f8 b8 75 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ea b8 75 ff 90 0f 0b 90 e9 bf fd ff ff [ 85.882068][ T5330] RSP: 0018:ffffc9000d367608 EFLAGS: 00010293 [ 85.884751][ T5330] RAX: ffffffff824a5a58 RBX: ffff8880320fad98 RCX: ffff88801f124900 [ 85.888715][ T5330] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 85.892258][ T5330] RBP: ffff888042e58001 R08: ffff8880320fad9f R09: 1ffff1100641f5b3 [ 85.895703][ T5330] R10: dffffc0000000000 R11: ffffed100641f5b4 R12: ffff88804c0e0400 [ 85.899187][ T5330] R13: ffff8880320b30e8 R14: ffff8880320fad98 R15: 000000000000000a [ 85.902422][ T5330] FS: 00007f117177b6c0(0000) GS:ffff88808d72d000(0000) knlGS:0000000000000000 [ 85.906232][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.909206][ T5330] CR2: 0000200000002000 CR3: 0000000011964000 CR4: 0000000000352ef0 [ 85.912537][ T5330] Call Trace: [ 85.914044][ T5330] [ 85.915396][ T5330] bfs_get_block+0x5da/0xae0 [ 85.917398][ T5330] __block_write_begin_int+0x6b5/0x1900 [ 85.920018][ T5330] ? __pfx_bfs_get_block+0x10/0x10 [ 85.922305][ T5330] ? __pfx___block_write_begin_int+0x10/0x10 [ 85.924815][ T5330] ? __filemap_get_folio+0x79f/0xaf0 [ 85.927265][ T5330] ? __pfx_bfs_get_block+0x10/0x10 [ 85.929828][ T5330] block_write_begin+0x8a/0x120 [ 85.931707][ T5330] ? bfs_write_begin+0x1e/0xd0 [ 85.933673][ T5330] bfs_write_begin+0x35/0xd0 [ 85.935643][ T5330] generic_perform_write+0x2c5/0x900 [ 85.938034][ T5330] ? __pfx_generic_perform_write+0x10/0x10 [ 85.940710][ T5330] ? file_update_time+0x2da/0x490 [ 85.942919][ T5330] ? __generic_file_write_iter+0xf9/0x230 [ 85.945349][ T5330] ? generic_file_write_iter+0x103/0x550 [ 85.947725][ T5330] generic_file_write_iter+0x117/0x550 [ 85.950262][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.952845][ T5330] ? __lock_acquire+0xab9/0xd20 [ 85.954861][ T5330] ? rcu_read_lock_any_held+0xb3/0x120 [ 85.957132][ T5330] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 85.959921][ T5330] vfs_write+0x5c9/0xb30 [ 85.961739][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.964213][ T5330] ? __pfx_vfs_write+0x10/0x10 [ 85.966264][ T5330] ? __fget_files+0x2a/0x420 [ 85.968063][ T5330] ksys_write+0x145/0x250 [ 85.970054][ T5330] ? __pfx_ksys_write+0x10/0x10 [ 85.971999][ T5330] ? do_syscall_64+0xbe/0xfa0 [ 85.974066][ T5330] do_syscall_64+0xfa/0xfa0 [ 85.976073][ T5330] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.978276][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.980928][ T5330] ? clear_bhb_loop+0x60/0xb0 [ 85.982920][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.985353][ T5330] RIP: 0033:0x7f117098f7c9 [ 85.987281][ T5330] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 85.995769][ T5330] RSP: 002b:00007f117177b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.999266][ T5330] RAX: ffffffffffffffda RBX: 00007f1170be6090 RCX: 00007f117098f7c9 [ 86.002639][ T5330] RDX: 000000000000fecc RSI: 0000200000000100 RDI: 0000000000000006 [ 86.006177][ T5330] RBP: 00007f1170a13f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.009504][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.012597][ T5330] R13: 00007f1170be6128 R14: 00007f1170be6090 R15: 00007ffe9c05b718 [ 86.016104][ T5330] [ 86.017528][ T5330] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 86.020578][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.024251][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.028627][ T5330] Call Trace: [ 86.030121][ T5330] [ 86.031347][ T5330] dump_stack_lvl+0x99/0x250 [ 86.033367][ T5330] ? __asan_memcpy+0x40/0x70 [ 86.035205][ T5330] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.037598][ T5330] ? __pfx__printk+0x10/0x10 [ 86.039552][ T5330] vpanic+0x237/0x6d0 [ 86.041016][ T5330] ? __pfx_vpanic+0x10/0x10 [ 86.042911][ T5330] panic+0xb9/0xc0 [ 86.044673][ T5330] ? __pfx_panic+0x10/0x10 [ 86.046495][ T5330] __warn+0x31b/0x4b0 [ 86.048140][ T5330] ? mark_buffer_dirty+0x2a9/0x410 [ 86.050192][ T5330] ? mark_buffer_dirty+0x2a9/0x410 [ 86.052402][ T5330] report_bug+0x2be/0x4f0 [ 86.054418][ T5330] ? mark_buffer_dirty+0x2a9/0x410 [ 86.056635][ T5330] ? mark_buffer_dirty+0x2a9/0x410 [ 86.058889][ T5330] ? mark_buffer_dirty+0x2ab/0x410 [ 86.061095][ T5330] handle_bug+0x84/0x160 [ 86.063003][ T5330] exc_invalid_op+0x1a/0x50 [ 86.065085][ T5330] asm_exc_invalid_op+0x1a/0x20 [ 86.067104][ T5330] RIP: 0010:mark_buffer_dirty+0x2a9/0x410 [ 86.069481][ T5330] Code: 4c 89 f7 e8 b9 06 dd ff 49 8b 3e be 40 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 14 ea fb ff e8 ff b8 75 ff eb 8c e8 f8 b8 75 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ea b8 75 ff 90 0f 0b 90 e9 bf fd ff ff [ 86.077336][ T5330] RSP: 0018:ffffc9000d367608 EFLAGS: 00010293 [ 86.079739][ T5330] RAX: ffffffff824a5a58 RBX: ffff8880320fad98 RCX: ffff88801f124900 [ 86.083133][ T5330] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 86.086501][ T5330] RBP: ffff888042e58001 R08: ffff8880320fad9f R09: 1ffff1100641f5b3 [ 86.089608][ T5330] R10: dffffc0000000000 R11: ffffed100641f5b4 R12: ffff88804c0e0400 [ 86.092835][ T5330] R13: ffff8880320b30e8 R14: ffff8880320fad98 R15: 000000000000000a [ 86.095866][ T5330] ? mark_buffer_dirty+0x2a8/0x410 [ 86.097766][ T5330] ? mark_buffer_dirty+0x2a8/0x410 [ 86.099561][ T5330] bfs_get_block+0x5da/0xae0 [ 86.117143][ T5330] __block_write_begin_int+0x6b5/0x1900 [ 86.120204][ T5330] ? __pfx_bfs_get_block+0x10/0x10 [ 86.122200][ T5330] ? __pfx___block_write_begin_int+0x10/0x10 [ 86.124742][ T5330] ? __filemap_get_folio+0x79f/0xaf0 [ 86.126963][ T5330] ? __pfx_bfs_get_block+0x10/0x10 [ 86.129183][ T5330] block_write_begin+0x8a/0x120 [ 86.131328][ T5330] ? bfs_write_begin+0x1e/0xd0 [ 86.133379][ T5330] bfs_write_begin+0x35/0xd0 [ 86.135375][ T5330] generic_perform_write+0x2c5/0x900 [ 86.137707][ T5330] ? __pfx_generic_perform_write+0x10/0x10 [ 86.140153][ T5330] ? file_update_time+0x2da/0x490 [ 86.142306][ T5330] ? __generic_file_write_iter+0xf9/0x230 [ 86.144616][ T5330] ? generic_file_write_iter+0x103/0x550 [ 86.146980][ T5330] generic_file_write_iter+0x117/0x550 [ 86.149296][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10 [ 86.151866][ T5330] ? __lock_acquire+0xab9/0xd20 [ 86.153928][ T5330] ? rcu_read_lock_any_held+0xb3/0x120 [ 86.156230][ T5330] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 86.158591][ T5330] vfs_write+0x5c9/0xb30 [ 86.160350][ T5330] ? __pfx_generic_file_write_iter+0x10/0x10 [ 86.163077][ T5330] ? __pfx_vfs_write+0x10/0x10 [ 86.165237][ T5330] ? __fget_files+0x2a/0x420 [ 86.167064][ T5330] ksys_write+0x145/0x250 [ 86.168628][ T5330] ? __pfx_ksys_write+0x10/0x10 [ 86.170419][ T5330] ? do_syscall_64+0xbe/0xfa0 [ 86.172450][ T5330] do_syscall_64+0xfa/0xfa0 [ 86.175741][ T5330] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.177801][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.180377][ T5330] ? clear_bhb_loop+0x60/0xb0 [ 86.182123][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.184761][ T5330] RIP: 0033:0x7f117098f7c9 [ 86.188206][ T5330] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 86.195910][ T5330] RSP: 002b:00007f117177b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.199192][ T5330] RAX: ffffffffffffffda RBX: 00007f1170be6090 RCX: 00007f117098f7c9 [ 86.202356][ T5330] RDX: 000000000000fecc RSI: 0000200000000100 RDI: 0000000000000006 [ 86.205617][ T5330] RBP: 00007f1170a13f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.208496][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.211321][ T5330] R13: 00007f1170be6128 R14: 00007f1170be6090 R15: 00007ffe9c05b718 [ 86.214591][ T5330] [ 86.216245][ T5330] Kernel Offset: disabled [ 86.218129][ T5330] Rebooting in 86400 seconds..