program:
syz_mount_image$bfs(&(0x7f00000001c0), &(0x7f0000000400)='\x13\x13w\xc5\xfc5\xd4\x14T\xd5\xd4\x1d)\xad\x1a`)Y\x81F\xe6\xbe\x16nA\xad\r\xbd@T\x03<\x9f3\xbb\xda\x82$\xa2\xf3\xd7r\xe7cnH\xb3<\xbfp\x83r\xe8\xf1\xb9\x93>\xc5\x12wC\xbe\"\x06 \x9e\xf0-\xf9\xcb\xf2\xf6\xe8\x80\xd38/\x00', 0x4, &(0x7f0000000600)=ANY=[], 0x8, 0xad, &(0x7f0000000040)="$eJzs0btpA0EUBdC7H/xJ7ALcg3tw6twVbOjQkY3BjlSGOlArKmE7ULCpkhHLrkChEAhJcA7MzA3mwYW33q5e8pSUv6SUUu6SPGbKX98/nx/v490kyTJt7jPZv9y4ej4P486fp7x5y+L/4E8//HZ9la4fyuyChQEAgJPVeZ1TdfxQm6Q5VyMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACA67ILAAD//1vZIlc=")
munmap(&(0x7f000045e000/0x1000)=nil, 0x1000)
mremap(&(0x7f00006e7000/0x3000)=nil, 0x3000, 0x4000, 0x3, &(0x7f0000ffa000/0x4000)=nil)
munmap(&(0x7f0000a88000/0x1000)=nil, 0x1000) (async)
munmap(&(0x7f0000a88000/0x1000)=nil, 0x1000)
prctl$PR_GET_CHILD_SUBREAPER(0x25)
munmap(&(0x7f0000694000/0x3000)=nil, 0x3000)
mremap(&(0x7f0000dde000/0x4000)=nil, 0x4000, 0x3000, 0x3, &(0x7f0000968000/0x3000)=nil)
mremap(&(0x7f0000b89000/0x1000)=nil, 0x1000, 0x1000, 0x3, &(0x7f0000bdf000/0x1000)=nil)
madvise(&(0x7f0000bdc000/0x4000)=nil, 0x86ac726dff2f4713, 0xa) (async)
madvise(&(0x7f0000bdc000/0x4000)=nil, 0x86ac726dff2f4713, 0xa)
syz_clone(0x1000000, 0x0, 0x0, 0x0, 0x0, 0x0) (async)
syz_clone(0x1000000, 0x0, 0x0, 0x0, 0x0, 0x0)
openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cpu.stat\x00', 0x275a, 0x0)
[ 84.726603][ T4672] Bluetooth: hci0: command tx timeout
[ 84.777619][ T5330] loop0: detected capacity change from 0 to 64
[ 84.856732][ T5336] ------------[ cut here ]------------
[ 84.859029][ T5336] WARNING: CPU: 0 PID: 5336 at fs/buffer.c:1183 mark_buffer_dirty+0x2a9/0x410
[ 84.862615][ T5336] Modules linked in:
[ 84.864574][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 84.868322][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 84.872769][ T5336] RIP: 0010:mark_buffer_dirty+0x2a9/0x410
[ 84.875418][ T5336] Code: 4c 89 f7 e8 69 08 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 bc 75 ff eb 8c e8 f8 bc 75 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ea bc 75 ff 90 0f 0b 90 e9 bf fd ff ff
[ 84.883690][ T5336] RSP: 0018:ffffc9000d4764c8 EFLAGS: 00010293
[ 84.886396][ T5336] RAX: ffffffff824a5658 RBX: ffff888042ed0828 RCX: ffff888000258000
[ 84.889642][ T5336] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[ 84.892867][ T5336] RBP: ffff888035e62001 R08: ffff888042ed082f R09: 1ffff110085da105
[ 84.897946][ T5336] R10: dffffc0000000000 R11: ffffed10085da106 R12: ffff88804c17da00
[ 84.901672][ T5336] R13: ffff888042ed0488 R14: ffff888042ed0828 R15: 000000000000000a
[ 84.905099][ T5336] FS: 00007f94add926c0(0000) GS:ffff88808d72f000(0000) knlGS:0000000000000000
[ 84.908869][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 84.911734][ T5336] CR2: 00007ffcef71af04 CR3: 0000000052510000 CR4: 0000000000352ef0
[ 84.915283][ T5336] Call Trace:
[ 84.916804][ T5336]
[ 84.918118][ T5336] bfs_get_block+0x5da/0xae0
[ 84.920157][ T5336] __block_write_begin_int+0x6b5/0x1900
[ 84.922610][ T5336] ? filemap_get_entry+0xad/0x2f0
[ 84.925025][ T5336] ? __pfx_bfs_get_block+0x10/0x10
[ 84.927228][ T5336] ? __pfx___block_write_begin_int+0x10/0x10
[ 84.929754][ T5336] ? __filemap_get_folio+0x79f/0xaf0
[ 84.931991][ T5336] ? __pfx_bfs_get_block+0x10/0x10
[ 84.934456][ T5336] block_write_begin+0x8a/0x120
[ 84.936473][ T5336] ? bfs_write_begin+0x1e/0xd0
[ 84.938579][ T5336] bfs_write_begin+0x35/0xd0
[ 84.940638][ T5336] generic_perform_write+0x2c5/0x900
[ 84.942813][ T5336] ? __pfx_generic_perform_write+0x10/0x10
[ 84.945381][ T5336] ? file_update_time+0x2da/0x490
[ 84.947514][ T5336] ? __generic_file_write_iter+0xf9/0x230
[ 84.949848][ T5336] ? generic_file_write_iter+0x103/0x550
[ 84.952453][ T5336] generic_file_write_iter+0x117/0x550
[ 84.955165][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 84.957912][ T5336] ? __lock_acquire+0xab9/0xd20
[ 84.960002][ T5336] ? do_raw_spin_lock+0x121/0x290
[ 84.962375][ T5336] ? _raw_spin_unlock_irqrestore+0x85/0x110
[ 84.965084][ T5336] ? lockdep_hardirqs_on+0x9c/0x150
[ 84.967376][ T5336] ? _raw_spin_unlock_irqrestore+0xad/0x110
[ 84.969794][ T5336] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 84.972784][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 84.975688][ T5336] __kernel_write_iter+0x428/0x910
[ 84.977847][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 84.980290][ T5336] ? __pfx___kernel_write_iter+0x10/0x10
[ 84.982785][ T5336] ? __kasan_kmalloc+0x93/0xb0
[ 84.984971][ T5336] ? __asan_memset+0x22/0x50
[ 84.986976][ T5336] ? iov_iter_kvec+0xb8/0x180
[ 84.988969][ T5336] __kernel_write+0xef/0x150
[ 84.990995][ T5336] ? __pfx___kernel_write+0x10/0x10
[ 84.993385][ T5336] __dump_emit+0x206/0x310
[ 84.995688][ T5336] ? __pfx___dump_emit+0x10/0x10
[ 84.997888][ T5336] ? __kmalloc_cache_noprof+0x3d5/0x6f0
[ 85.000675][ T5336] ? elf_core_dump+0x2243/0x3960
[ 85.002878][ T5336] ? dump_emit+0xa6/0xe0
[ 85.004760][ T5336] ? elf_core_dump+0x2cd0/0x3960
[ 85.006886][ T5336] elf_core_dump+0x2d05/0x3960
[ 85.008889][ T5336] ? __pfx_elf_core_dump+0x10/0x10
[ 85.011029][ T5336] ? kasan_save_track+0x4f/0x80
[ 85.013070][ T5336] ? kasan_save_track+0x3e/0x80
[ 85.015298][ T5336] ? __kasan_kmalloc+0x93/0xb0
[ 85.017363][ T5336] ? __kvmalloc_node_noprof+0x5cd/0x910
[ 85.020057][ T5336] ? coredump_write+0x343/0x1900
[ 85.022706][ T5336] ? vfs_coredump+0x1db5/0x2a60
[ 85.025419][ T5336] ? get_signal+0x1108/0x1340
[ 85.028033][ T5336] ? arch_do_signal_or_restart+0xa0/0x790
[ 85.031095][ T5336] ? exit_to_user_mode_loop+0x72/0x130
[ 85.034127][ T5336] ? ret_from_fork+0x53f/0x870
[ 85.036348][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.038576][ T5336] ? up_write+0x1c4/0x420
[ 85.040547][ T5336] coredump_write+0x116c/0x1900
[ 85.042738][ T5336] ? __pfx_coredump_write+0x10/0x10
[ 85.045145][ T5336] ? kfree+0x4d/0x6d0
[ 85.046857][ T5336] ? unshare_files+0xa9/0x140
[ 85.048701][ T5336] vfs_coredump+0x1db5/0x2a60
[ 85.050720][ T5336] ? rep_stos_alternative+0xf/0x80
[ 85.052815][ T5336] ? __pfx_vfs_coredump+0x10/0x10
[ 85.055186][ T5336] ? __pfx_fixup_exception+0x10/0x10
[ 85.057404][ T5336] ? __lock_acquire+0xab9/0xd20
[ 85.059598][ T5336] ? __lock_acquire+0xab9/0xd20
[ 85.061620][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.063887][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.066308][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.068561][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.070658][ T5336] ? unwind_next_frame+0x19ae/0x2390
[ 85.072926][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.075292][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.077595][ T5336] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 85.080561][ T5336] ? arch_stack_walk+0x11c/0x150
[ 85.083145][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.085916][ T5336] ? stack_trace_save+0x9c/0xe0
[ 85.088522][ T5336] ? stack_depot_save_flags+0x40/0x860
[ 85.091478][ T5336] ? kasan_save_track+0x4f/0x80
[ 85.093627][ T5336] ? kasan_save_track+0x3e/0x80
[ 85.095682][ T5336] ? __kasan_save_free_info+0x46/0x50
[ 85.097826][ T5336] ? __kasan_slab_free+0x5c/0x80
[ 85.099998][ T5336] ? kmem_cache_free+0x19b/0x690
[ 85.102526][ T5336] ? get_signal+0xa4b/0x1340
[ 85.104902][ T5336] ? arch_do_signal_or_restart+0xa0/0x790
[ 85.107661][ T5336] ? exit_to_user_mode_loop+0x72/0x130
[ 85.110133][ T5336] ? ret_from_fork+0x53f/0x870
[ 85.112315][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.114643][ T5336] ? _raw_spin_unlock_irq+0x23/0x50
[ 85.116820][ T5336] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.119150][ T5336] get_signal+0x1108/0x1340
[ 85.121245][ T5336] arch_do_signal_or_restart+0xa0/0x790
[ 85.123566][ T5336] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 85.126369][ T5336] ? exit_to_user_mode_loop+0x40/0x130
[ 85.128490][ T5336] exit_to_user_mode_loop+0x72/0x130
[ 85.130452][ T5336] ret_from_fork+0x53f/0x870
[ 85.132344][ T5336] ? __pfx_ret_from_fork+0x10/0x10
[ 85.134816][ T5336] ret_from_fork_asm+0x1a/0x30
[ 85.136911][ T5336]
[ 85.138212][ T5336] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 85.141005][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
[ 85.144553][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 85.148973][ T5336] Call Trace:
[ 85.150412][ T5336]
[ 85.151689][ T5336] dump_stack_lvl+0x99/0x250
[ 85.153579][ T5336] ? __asan_memcpy+0x40/0x70
[ 85.155460][ T5336] ? __pfx_dump_stack_lvl+0x10/0x10
[ 85.157645][ T5336] ? __pfx__printk+0x10/0x10
[ 85.160155][ T5336] vpanic+0x237/0x6d0
[ 85.162417][ T5336] ? __pfx_vpanic+0x10/0x10
[ 85.164879][ T5336] panic+0xb9/0xc0
[ 85.166675][ T5336] ? __pfx_panic+0x10/0x10
[ 85.168511][ T5336] __warn+0x31b/0x4b0
[ 85.170089][ T5336] ? mark_buffer_dirty+0x2a9/0x410
[ 85.172215][ T5336] ? mark_buffer_dirty+0x2a9/0x410
[ 85.174294][ T5336] report_bug+0x2be/0x4f0
[ 85.176038][ T5336] ? mark_buffer_dirty+0x2a9/0x410
[ 85.178119][ T5336] ? mark_buffer_dirty+0x2a9/0x410
[ 85.180038][ T5336] ? mark_buffer_dirty+0x2ab/0x410
[ 85.181983][ T5336] handle_bug+0x84/0x160
[ 85.183654][ T5336] exc_invalid_op+0x1a/0x50
[ 85.185446][ T5336] asm_exc_invalid_op+0x1a/0x20
[ 85.187321][ T5336] RIP: 0010:mark_buffer_dirty+0x2a9/0x410
[ 85.189322][ T5336] Code: 4c 89 f7 e8 69 08 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 bc 75 ff eb 8c e8 f8 bc 75 ff 90 <0f> 0b 90 e9 95 fd ff ff e8 ea bc 75 ff 90 0f 0b 90 e9 bf fd ff ff
[ 85.196826][ T5336] RSP: 0018:ffffc9000d4764c8 EFLAGS: 00010293
[ 85.199391][ T5336] RAX: ffffffff824a5658 RBX: ffff888042ed0828 RCX: ffff888000258000
[ 85.202719][ T5336] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
[ 85.206054][ T5336] RBP: ffff888035e62001 R08: ffff888042ed082f R09: 1ffff110085da105
[ 85.209019][ T5336] R10: dffffc0000000000 R11: ffffed10085da106 R12: ffff88804c17da00
[ 85.212223][ T5336] R13: ffff888042ed0488 R14: ffff888042ed0828 R15: 000000000000000a
[ 85.215728][ T5336] ? mark_buffer_dirty+0x2a8/0x410
[ 85.217872][ T5336] ? mark_buffer_dirty+0x2a8/0x410
[ 85.219928][ T5336] bfs_get_block+0x5da/0xae0
[ 85.221647][ T5336] __block_write_begin_int+0x6b5/0x1900
[ 85.223692][ T5336] ? filemap_get_entry+0xad/0x2f0
[ 85.225555][ T5336] ? __pfx_bfs_get_block+0x10/0x10
[ 85.227598][ T5336] ? __pfx___block_write_begin_int+0x10/0x10
[ 85.230084][ T5336] ? __filemap_get_folio+0x79f/0xaf0
[ 85.232112][ T5336] ? __pfx_bfs_get_block+0x10/0x10
[ 85.234161][ T5336] block_write_begin+0x8a/0x120
[ 85.236242][ T5336] ? bfs_write_begin+0x1e/0xd0
[ 85.238564][ T5336] bfs_write_begin+0x35/0xd0
[ 85.240578][ T5336] generic_perform_write+0x2c5/0x900
[ 85.242755][ T5336] ? __pfx_generic_perform_write+0x10/0x10
[ 85.245182][ T5336] ? file_update_time+0x2da/0x490
[ 85.247310][ T5336] ? __generic_file_write_iter+0xf9/0x230
[ 85.249647][ T5336] ? generic_file_write_iter+0x103/0x550
[ 85.251719][ T5336] generic_file_write_iter+0x117/0x550
[ 85.253692][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 85.256286][ T5336] ? __lock_acquire+0xab9/0xd20
[ 85.258294][ T5336] ? do_raw_spin_lock+0x121/0x290
[ 85.260502][ T5336] ? _raw_spin_unlock_irqrestore+0x85/0x110
[ 85.263080][ T5336] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.265323][ T5336] ? _raw_spin_unlock_irqrestore+0xad/0x110
[ 85.267887][ T5336] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 85.270634][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 85.273221][ T5336] __kernel_write_iter+0x428/0x910
[ 85.275477][ T5336] ? __pfx_generic_file_write_iter+0x10/0x10
[ 85.278037][ T5336] ? __pfx___kernel_write_iter+0x10/0x10
[ 85.280470][ T5336] ? __kasan_kmalloc+0x93/0xb0
[ 85.282558][ T5336] ? __asan_memset+0x22/0x50
[ 85.284555][ T5336] ? iov_iter_kvec+0xb8/0x180
[ 85.286651][ T5336] __kernel_write+0xef/0x150
[ 85.288642][ T5336] ? __pfx___kernel_write+0x10/0x10
[ 85.290903][ T5336] __dump_emit+0x206/0x310
[ 85.292861][ T5336] ? __pfx___dump_emit+0x10/0x10
[ 85.295009][ T5336] ? __kmalloc_cache_noprof+0x3d5/0x6f0
[ 85.297332][ T5336] ? elf_core_dump+0x2243/0x3960
[ 85.299478][ T5336] ? dump_emit+0xa6/0xe0
[ 85.301188][ T5336] ? elf_core_dump+0x2cd0/0x3960
[ 85.303154][ T5336] elf_core_dump+0x2d05/0x3960
[ 85.305102][ T5336] ? __pfx_elf_core_dump+0x10/0x10
[ 85.307138][ T5336] ? kasan_save_track+0x4f/0x80
[ 85.309049][ T5336] ? kasan_save_track+0x3e/0x80
[ 85.310991][ T5336] ? __kasan_kmalloc+0x93/0xb0
[ 85.312848][ T5336] ? __kvmalloc_node_noprof+0x5cd/0x910
[ 85.314924][ T5336] ? coredump_write+0x343/0x1900
[ 85.316876][ T5336] ? vfs_coredump+0x1db5/0x2a60
[ 85.319196][ T5336] ? get_signal+0x1108/0x1340
[ 85.321097][ T5336] ? arch_do_signal_or_restart+0xa0/0x790
[ 85.323474][ T5336] ? exit_to_user_mode_loop+0x72/0x130
[ 85.326000][ T5336] ? ret_from_fork+0x53f/0x870
[ 85.328072][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.330274][ T5336] ? up_write+0x1c4/0x420
[ 85.332130][ T5336] coredump_write+0x116c/0x1900
[ 85.334218][ T5336] ? __pfx_coredump_write+0x10/0x10
[ 85.336328][ T5336] ? kfree+0x4d/0x6d0
[ 85.337901][ T5336] ? unshare_files+0xa9/0x140
[ 85.339973][ T5336] vfs_coredump+0x1db5/0x2a60
[ 85.341926][ T5336] ? rep_stos_alternative+0xf/0x80
[ 85.343981][ T5336] ? __pfx_vfs_coredump+0x10/0x10
[ 85.346122][ T5336] ? __pfx_fixup_exception+0x10/0x10
[ 85.348363][ T5336] ? __lock_acquire+0xab9/0xd20
[ 85.350381][ T5336] ? __lock_acquire+0xab9/0xd20
[ 85.352506][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.354667][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.356801][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.358978][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.361283][ T5336] ? unwind_next_frame+0x19ae/0x2390
[ 85.363678][ T5336] ? unwind_next_frame+0xa5/0x2390
[ 85.365940][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.368175][ T5336] ? __pfx_stack_trace_consume_entry+0x10/0x10
[ 85.370959][ T5336] ? arch_stack_walk+0x11c/0x150
[ 85.373150][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.375342][ T5336] ? stack_trace_save+0x9c/0xe0
[ 85.377462][ T5336] ? stack_depot_save_flags+0x40/0x860
[ 85.379857][ T5336] ? kasan_save_track+0x4f/0x80
[ 85.382093][ T5336] ? kasan_save_track+0x3e/0x80
[ 85.384308][ T5336] ? __kasan_save_free_info+0x46/0x50
[ 85.386852][ T5336] ? __kasan_slab_free+0x5c/0x80
[ 85.389103][ T5336] ? kmem_cache_free+0x19b/0x690
[ 85.391329][ T5336] ? get_signal+0xa4b/0x1340
[ 85.393325][ T5336] ? arch_do_signal_or_restart+0xa0/0x790
[ 85.395794][ T5336] ? exit_to_user_mode_loop+0x72/0x130
[ 85.398276][ T5336] ? ret_from_fork+0x53f/0x870
[ 85.400499][ T5336] ? ret_from_fork_asm+0x1a/0x30
[ 85.402737][ T5336] ? _raw_spin_unlock_irq+0x23/0x50
[ 85.405013][ T5336] ? lockdep_hardirqs_on+0x9c/0x150
[ 85.407390][ T5336] get_signal+0x1108/0x1340
[ 85.409402][ T5336] arch_do_signal_or_restart+0xa0/0x790
[ 85.411860][ T5336] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 85.414519][ T5336] ? exit_to_user_mode_loop+0x40/0x130
[ 85.416865][ T5336] exit_to_user_mode_loop+0x72/0x130
[ 85.419180][ T5336] ret_from_fork+0x53f/0x870
[ 85.421185][ T5336] ? __pfx_ret_from_fork+0x10/0x10
[ 85.423439][ T5336] ret_from_fork_asm+0x1a/0x30
[ 85.425640][ T5336]
[ 85.427401][ T5336] Kernel Offset: disabled
[ 85.429285][ T5336] Rebooting in 86400 seconds..