program: syz_mount_image$ext4(&(0x7f0000000000)='ext4\x00', &(0x7f0000000480)='./file0\x00', 0x0, &(0x7f0000000140)={[{@nouid32}]}, 0x1, 0x461, &(0x7f0000000540)="$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") open(0x0, 0x145142, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x105042, 0x1db) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) ioctl$sock_bt_hidp_HIDPCONNDEL(0xffffffffffffffff, 0x400448c9, 0x0) getsockname(0xffffffffffffffff, 0x0, 0x0) r1 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r1, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x0, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x200]}) r2 = bpf$MAP_CREATE(0x0, &(0x7f0000001780)=ANY=[@ANYBLOB="02000000040000000600000005000000"], 0x48) r3 = bpf$PROG_LOAD(0x5, &(0x7f00000000c0)={0x11, 0xc, &(0x7f0000000440)=ANY=[@ANYBLOB="1800000001070000000000000000260018110000", @ANYRES32=r2, @ANYBLOB="0000000000000000b7080000000000007b8af8ff00000000bfa200000000000007020000f8ffffffb703000008000000b704000000000000850000000100000095"], &(0x7f0000000240)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, &(0x7f0000000540)={&(0x7f0000000000)='sched_switch\x00', r3}, 0x10) ioctl$TIOCL_GETMOUSEREPORTING(0xffffffffffffffff, 0x5412, &(0x7f00000000c0)=0x13) ioctl$TIOCL_GETMOUSEREPORTING(0xffffffffffffffff, 0x5412, &(0x7f0000000280)=0x11) writev(r0, &(0x7f0000000140)=[{&(0x7f0000001200)="10", 0x60000}], 0x1) [ 74.342027][ T4685] Bluetooth: hci0: command tx timeout [ 74.414786][ T5336] loop0: detected capacity change from 0 to 512 [ 74.476966][ T5336] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. [ 74.498092][ T25] audit: type=1800 audit(1753091720.735:2): pid=5336 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=15 res=0 errno=0 [ 74.542759][ T5336] loop0: detected capacity change from 512 to 64 [ 74.572710][ T5336] syz.0.0: attempt to access beyond end of device [ 74.572710][ T5336] loop0: rw=2049, sector=88, nr_sectors = 24 limit=64 [ 74.578365][ T5336] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 15 starting block 44) [ 74.585158][ T5336] Buffer I/O error on device loop0, logical block 44 [ 74.588707][ T5336] Buffer I/O error on device loop0, logical block 45 [ 74.592015][ T5336] Buffer I/O error on device loop0, logical block 46 [ 74.594980][ T5336] Buffer I/O error on device loop0, logical block 47 [ 74.599263][ T5336] Buffer I/O error on device loop0, logical block 48 [ 74.602269][ T5336] Buffer I/O error on device loop0, logical block 49 [ 74.605172][ T5336] Buffer I/O error on device loop0, logical block 50 [ 74.608108][ T5336] Buffer I/O error on device loop0, logical block 51 [ 74.612640][ T5336] Buffer I/O error on device loop0, logical block 52 [ 74.615761][ T5336] Buffer I/O error on device loop0, logical block 53 [ 74.722608][ T5336] ------------[ cut here ]------------ [ 74.725405][ T5336] kernel BUG at fs/ext4/mballoc.c:4685! [ 74.728018][ T5336] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 74.731185][ T5336] CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(full) [ 74.735844][ T5336] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.740706][ T5336] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 74.743525][ T5336] Code: e8 f4 3d ab ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 70 bd 47 ff 90 0f 0b e8 68 bd 47 ff 90 0f 0b e8 60 bd 47 ff 90 <0f> 0b e8 58 bd 47 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 74.752457][ T5336] RSP: 0018:ffffc9000d5ce8c8 EFLAGS: 00010287 [ 74.755320][ T5336] RAX: ffffffff827873a0 RBX: 00000000ffffffcc RCX: 0000000000100000 [ 74.758977][ T5336] RDX: ffffc9000e1b2000 RSI: 0000000000011723 RDI: 0000000000011724 [ 74.762585][ T5336] RBP: 1ffff11008858c22 R08: ffff8880442c7503 R09: 1ffff11008858ea0 [ 74.766266][ T5336] R10: dffffc0000000000 R11: ffffed1008858ea1 R12: 0000000000000000 [ 74.769908][ T5336] R13: 0000000000000054 R14: 1ffff11008858ea3 R15: ffff8880442c7518 [ 74.773544][ T5336] FS: 00007fd8cc3f56c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 [ 74.777987][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.781149][ T5336] CR2: 0000562cc63cb168 CR3: 00000000437de000 CR4: 0000000000352ef0 [ 74.784794][ T5336] Call Trace: [ 74.786407][ T5336] [ 74.787833][ T5336] ext4_mb_use_preallocated+0x660/0x13f0 [ 74.790299][ T5336] ext4_mb_new_blocks+0x5b4/0x46a0 [ 74.792578][ T5336] ? ext4_new_meta_blocks+0x2b3/0x3c0 [ 74.794862][ T5336] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 74.797261][ T5336] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 74.799844][ T5336] ? ext4_block_to_path+0x297/0x6f0 [ 74.802336][ T5336] ext4_ind_map_blocks+0xe21/0x21b0 [ 74.804626][ T5336] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 74.807235][ T5336] ? __pfx_down_write+0x10/0x10 [ 74.809530][ T5336] ? ext4_es_lookup_extent+0x622/0xa70 [ 74.811877][ T5336] ext4_map_blocks+0x8d8/0x18d0 [ 74.814130][ T5336] ? __pfx_ext4_map_blocks+0x10/0x10 [ 74.816934][ T5336] ? rcu_is_watching+0x15/0xb0 [ 74.819011][ T5336] ext4_do_writepages+0x1703/0x3f30 [ 74.821401][ T5336] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.824182][ T5336] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 74.827084][ T5336] ? __pfx_ext4_do_writepages+0x10/0x10 [ 74.829618][ T5336] ? __lock_acquire+0xab9/0xd20 [ 74.831794][ T5336] ? __lock_acquire+0xab9/0xd20 [ 74.833919][ T5336] ? rcu_read_lock_any_held+0xb3/0x120 [ 74.836865][ T5336] ext4_writepages+0x205/0x350 [ 74.839032][ T5336] ? __pfx_ext4_writepages+0x10/0x10 [ 74.841311][ T5336] ? __lock_acquire+0xab9/0xd20 [ 74.843412][ T5336] ? __pfx_ext4_writepages+0x10/0x10 [ 74.845663][ T5336] do_writepages+0x32e/0x550 [ 74.847743][ T5336] ? do_raw_spin_unlock+0x4d/0x240 [ 74.850275][ T5336] file_write_and_wait_range+0x22c/0x330 [ 74.853047][ T5336] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 74.855910][ T5336] generic_buffers_fsync_noflush+0x6c/0x180 [ 74.858670][ T5336] ext4_sync_file+0x332/0xb20 [ 74.860750][ T5336] ext4_buffered_write_iter+0x2ca/0x3a0 [ 74.863178][ T5336] ext4_file_write_iter+0x298/0x1bc0 [ 74.865520][ T5336] ? __pfx_ext4_file_write_iter+0x10/0x10 [ 74.868060][ T5336] do_iter_readv_writev+0x56b/0x7f0 [ 74.870358][ T5336] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 74.872911][ T5336] ? rcu_read_lock_any_held+0xb3/0x120 [ 74.875502][ T5336] vfs_writev+0x31a/0x960 [ 74.877658][ T5336] ? __lock_acquire+0xab9/0xd20 [ 74.879940][ T5336] ? __pfx_vfs_writev+0x10/0x10 [ 74.882148][ T5336] ? __fget_files+0x2a/0x420 [ 74.884309][ T5336] ? __fget_files+0x3a0/0x420 [ 74.886359][ T5336] ? __fget_files+0x2a/0x420 [ 74.888352][ T5336] do_writev+0x14d/0x2d0 [ 74.890163][ T5336] ? __pfx_do_writev+0x10/0x10 [ 74.892106][ T5336] ? rcu_is_watching+0x15/0xb0 [ 74.894016][ T5336] ? do_syscall_64+0xbe/0x3b0 [ 74.895851][ T5336] do_syscall_64+0xfa/0x3b0 [ 74.897770][ T5336] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.899988][ T5336] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.902510][ T5336] ? clear_bhb_loop+0x60/0xb0 [ 74.904451][ T5336] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.906990][ T5336] RIP: 0033:0x7fd8cff8e9a9 [ 74.908979][ T5336] 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 [ 74.917250][ T5336] RSP: 002b:00007fd8cc3f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 74.920756][ T5336] RAX: ffffffffffffffda RBX: 00007fd8d01b5fa0 RCX: 00007fd8cff8e9a9 [ 74.924207][ T5336] RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000004 [ 74.927807][ T5336] RBP: 00007fd8d0010d69 R08: 0000000000000000 R09: 0000000000000000 [ 74.931666][ T5336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.935213][ T5336] R13: 0000000000000000 R14: 00007fd8d01b5fa0 R15: 00007ffdeda8ac78 [ 74.939523][ T5336] [ 74.940996][ T5336] Modules linked in: [ 74.943416][ T5336] ---[ end trace 0000000000000000 ]--- [ 74.945851][ T5336] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 74.949050][ T5336] Code: e8 f4 3d ab ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 70 bd 47 ff 90 0f 0b e8 68 bd 47 ff 90 0f 0b e8 60 bd 47 ff 90 <0f> 0b e8 58 bd 47 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 74.958135][ T5336] RSP: 0018:ffffc9000d5ce8c8 EFLAGS: 00010287 [ 74.961208][ T5336] RAX: ffffffff827873a0 RBX: 00000000ffffffcc RCX: 0000000000100000 [ 74.965631][ T5336] RDX: ffffc9000e1b2000 RSI: 0000000000011723 RDI: 0000000000011724 [ 74.969287][ T5336] RBP: 1ffff11008858c22 R08: ffff8880442c7503 R09: 1ffff11008858ea0 [ 74.973237][ T5336] R10: dffffc0000000000 R11: ffffed1008858ea1 R12: 0000000000000000 [ 74.976702][ T5336] R13: 0000000000000054 R14: 1ffff11008858ea3 R15: ffff8880442c7518 [ 74.980238][ T5336] FS: 00007fd8cc3f56c0(0000) GS:ffff88808d218000(0000) knlGS:0000000000000000 [ 74.985259][ T5336] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.988459][ T5336] CR2: 0000562cc63cb168 CR3: 00000000437de000 CR4: 0000000000352ef0 [ 74.992117][ T5336] Kernel panic - not syncing: Fatal exception [ 74.995372][ T5336] Kernel Offset: disabled [ 74.997327][ T5336] Rebooting in 86400 seconds..