program: syz_mount_image$ext4(&(0x7f0000000780)='ext4\x00', &(0x7f0000000480)='./file1\x00', 0x0, &(0x7f0000000280), 0x1, 0x792, &(0x7f0000001a40)="$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") openat(0xffffffffffffff9c, &(0x7f0000000080)='./bus\x00', 0x141842, 0x0) openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x0) (async) r0 = openat(0xffffffffffffff9c, &(0x7f0000004400)='./bus\x00', 0x1c1002, 0x0) write(r0, &(0x7f0000004200)='t', 0x1) r1 = creat(&(0x7f0000000040)='./bus\x00', 0x0) io_setup(0x202, &(0x7f0000000100)) (async) io_setup(0x202, &(0x7f0000000100)=0x0) r3 = add_key$keyring(&(0x7f00000000c0), &(0x7f00000001c0)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffe) add_key(&(0x7f0000000240)='rxrpc\x00', 0x0, &(0x7f0000000040)="0000000000000040ff000014f200000000861f4104bfeacd1f63dd65dd5307000000000000000000", 0x28, r3) io_submit(r2, 0x20000000000002c9, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0x0, 0x0, 0x1, 0x0, r1, &(0x7f0000000000), 0x4000}]) r4 = openat$hwrng(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) preadv(r4, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) (async) preadv(r4, &(0x7f0000000240)=[{&(0x7f0000033a80)=""/102386, 0xfffffd6e}], 0x1, 0x0, 0x0) r5 = open(&(0x7f0000000080)='./bus\x00', 0x185102, 0x0) ftruncate(r5, 0x2007ffb) (async) ftruncate(r5, 0x2007ffb) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r5, 0x0) [ 67.851746][ T5294] Bluetooth: hci0: command tx timeout [ 67.922422][ T5309] loop0: detected capacity change from 0 to 2048 [ 67.978520][ T5309] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 68.054479][ T5309] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1220: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 68.715013][ T5308] ------------[ cut here ]------------ [ 68.717412][ T5308] kernel BUG at fs/ext4/inode.c:2624! [ 68.721205][ T5308] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 68.723879][ T5308] CPU: 0 UID: 0 PID: 5308 Comm: syz.0.0 Not tainted 6.15.0-rc4-syzkaller-00208-g00b827f0cffa #0 PREEMPT(full) [ 68.728704][ T5308] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 68.733257][ T5308] RIP: 0010:ext4_do_writepages+0x3e47/0x3e50 [ 68.735893][ T5308] Code: c1 0f 8c 23 fd ff ff 4c 89 e7 e8 84 cd b0 ff e9 16 fd ff ff e8 da d8 4e ff 90 0f 0b e8 d2 d8 4e ff 90 0f 0b e8 ca d8 4e ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 68.743611][ T5308] RSP: 0018:ffffc9000fdef400 EFLAGS: 00010293 [ 68.746113][ T5308] RAX: ffffffff8270e786 RBX: 0000004a10000000 RCX: ffff88800014a440 [ 68.749351][ T5308] RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 [ 68.752614][ T5308] RBP: ffffc9000fdef7f0 R08: ffff88804279d97f R09: 1ffff110084f3b2f [ 68.755836][ T5308] R10: dffffc0000000000 R11: ffffed10084f3b30 R12: ffffc9000fdefb00 [ 68.759215][ T5308] R13: ffffc9000fdef840 R14: 0000004000000000 R15: 0000000000000001 [ 68.762519][ T5308] FS: 000055555cad3500(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 [ 68.766298][ T5308] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.769015][ T5308] CR2: 0000200000039000 CR3: 0000000042064000 CR4: 0000000000352ef0 [ 68.772461][ T5308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.775908][ T5308] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.779212][ T5308] Call Trace: [ 68.780773][ T5308] [ 68.782022][ T5308] ? cgroup_rstat_updated+0x144/0xb50 [ 68.784352][ T5308] ? __pfx_cgroup_rstat_updated+0x10/0x10 [ 68.786742][ T5308] ? rcu_read_lock_sched_held+0x89/0x100 [ 68.789174][ T5308] ? arch_scale_cpu_capacity+0x18/0xb0 [ 68.791548][ T5308] ? xfd_validate_state+0x6d/0x150 [ 68.793834][ T5308] ? save_fpregs_to_fpstate+0xa3/0x210 [ 68.796252][ T5308] ? __pfx_ext4_do_writepages+0x10/0x10 [ 68.798663][ T5308] ? cgroup_rstat_updated+0x144/0xb50 [ 68.801868][ T5308] ? look_up_lock_class+0x74/0x170 [ 68.805110][ T5308] ? register_lock_class+0x51/0x320 [ 68.807280][ T5308] ? __lock_acquire+0xaac/0xd20 [ 68.809375][ T5308] ? rcu_read_lock_any_held+0xb3/0x120 [ 68.811650][ T5308] ext4_writepages+0x203/0x350 [ 68.813753][ T5308] ? __pfx_ext4_writepages+0x10/0x10 [ 68.815912][ T5308] ? do_raw_spin_unlock+0x4d/0x240 [ 68.817974][ T5308] ? __pfx_ext4_writepages+0x10/0x10 [ 68.820188][ T5308] do_writepages+0x3ae/0x7b0 [ 68.821880][ T5308] ? do_raw_spin_lock+0x121/0x290 [ 68.823774][ T5308] ? __pfx_do_writepages+0x10/0x10 [ 68.825952][ T5308] ? do_raw_spin_unlock+0x4d/0x240 [ 68.828060][ T5308] filemap_flush+0x189/0x220 [ 68.830073][ T5308] ? __pfx_filemap_flush+0x10/0x10 [ 68.832238][ T5308] ? __pfx___might_resched+0x10/0x10 [ 68.834203][ T5308] ? rcu_is_watching+0x15/0xb0 [ 68.836151][ T5308] ext4_release_file+0x82/0x310 [ 68.838093][ T5308] ? __pfx_ext4_release_file+0x10/0x10 [ 68.840353][ T5308] __fput+0x449/0xa70 [ 68.841903][ T5308] task_work_run+0x1d1/0x260 [ 68.843754][ T5308] ? __pfx_task_work_run+0x10/0x10 [ 68.845712][ T5308] resume_user_mode_work+0x5e/0x80 [ 68.847623][ T5308] syscall_exit_to_user_mode+0x9a/0x120 [ 68.849875][ T5308] do_syscall_64+0x103/0x210 [ 68.851916][ T5308] ? clear_bhb_loop+0x45/0xa0 [ 68.853773][ T5308] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 68.856236][ T5308] RIP: 0033:0x7f2ade98e969 [ 68.858144][ T5308] 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 [ 68.865938][ T5308] RSP: 002b:00007ffeec678e08 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 68.869590][ T5308] RAX: 0000000000000000 RBX: 00007f2adebb7ba0 RCX: 00007f2ade98e969 [ 68.873139][ T5308] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 68.876096][ T5308] RBP: 00007f2adebb7ba0 R08: 0000000000000000 R09: 00000012ec6790ff [ 68.878845][ T5308] R10: 00007f2adebb7ac0 R11: 0000000000000246 R12: 0000000000010bca [ 68.882050][ T5308] R13: 00007ffeec678f00 R14: ffffffffffffffff R15: 00007ffeec678f20 [ 68.885393][ T5308] [ 68.886630][ T5308] Modules linked in: [ 68.889976][ T5308] ---[ end trace 0000000000000000 ]--- [ 69.089227][ T5308] RIP: 0010:ext4_do_writepages+0x3e47/0x3e50 [ 69.091688][ T5308] Code: c1 0f 8c 23 fd ff ff 4c 89 e7 e8 84 cd b0 ff e9 16 fd ff ff e8 da d8 4e ff 90 0f 0b e8 d2 d8 4e ff 90 0f 0b e8 ca d8 4e ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 69.110079][ T5308] RSP: 0018:ffffc9000fdef400 EFLAGS: 00010293 [ 69.112999][ T5308] RAX: ffffffff8270e786 RBX: 0000004a10000000 RCX: ffff88800014a440 [ 69.119934][ T5308] RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000 [ 69.129558][ T5308] RBP: ffffc9000fdef7f0 R08: ffff88804279d97f R09: 1ffff110084f3b2f [ 69.132972][ T5308] R10: dffffc0000000000 R11: ffffed10084f3b30 R12: ffffc9000fdefb00 [ 69.147255][ T5308] R13: ffffc9000fdef840 R14: 0000004000000000 R15: 0000000000000001 [ 69.151035][ T5308] FS: 000055555cad3500(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000 [ 69.154741][ T5308] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.167734][ T5308] CR2: 0000200000039000 CR3: 0000000042064000 CR4: 0000000000352ef0 [ 69.172636][ T5308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.175944][ T5308] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.189318][ T5308] Kernel panic - not syncing: Fatal exception [ 69.191846][ T5308] Kernel Offset: disabled [ 69.194984][ T5308] Rebooting in 86400 seconds..