program: syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x0, &(0x7f0000000040)={[{@nobarrier}, {@resuid}, {@barrier_val={'barrier', 0x3d, 0x9}}]}, 0x1, 0x4b0, &(0x7f0000000b80)="$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") r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000140)='cgroup.controllers\x00', 0x275a, 0x0) ioctl$FS_IOC_SETFLAGS(r0, 0x40086602, &(0x7f00000002c0)=0x2000000) creat(&(0x7f0000000040)='./bus\x00', 0x0) perf_event_open(&(0x7f0000000200)={0x2, 0x80, 0x9a, 0x1, 0x0, 0x0, 0x0, 0x5, 0x200, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x9, 0xffffffffffffff83}, 0x200, 0x0, 0x0, 0x3, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x8) syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f0000000280)='./mnt\x00', 0x840, &(0x7f0000000140)={[{@grpid}, {@jqfmt_vfsv1}]}, 0x1, 0x246, &(0x7f0000000ac0)="$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") r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cpu.stat\x00', 0x275a, 0x0) ftruncate(r1, 0x201bf) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2, 0x28011, r1, 0x0) r2 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0) r3 = ioctl$KVM_CREATE_VM(r2, 0xae01, 0x0) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x131) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x878c0, 0x0) r4 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) openat$vicodec0(0xffffffffffffff9c, &(0x7f00000086c0), 0x2, 0x0) ioctl$LOOP_SET_STATUS64(r4, 0x4c04, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x1, 0x8005, 0x0, 0x0, 0x19, 0xd, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x8]}) r5 = ioctl$KVM_CREATE_VCPU(r3, 0xae41, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r5, &(0x7f0000000000/0x18000)=nil, &(0x7f0000000140)=[@text64={0x40, 0x0}], 0x1, 0x74, 0x0, 0x0) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) r6 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r6, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x1c, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x204]}) write$cgroup_int(r0, &(0x7f0000000380), 0x1040c) close(r0) [ 85.002339][ T5340] loop0: detected capacity change from 0 to 512 [ 85.015975][ T46] Bluetooth: hci0: command tx timeout [ 85.198058][ T5340] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 85.203131][ T5340] ext4 filesystem being mounted at /0/file1 supports timestamps until 2038-01-19 (0x7fffffff) [ 85.308218][ T5340] ======================================================= [ 85.308218][ T5340] WARNING: The mand mount option has been deprecated and [ 85.308218][ T5340] and is ignored by this kernel. Remove the mand [ 85.308218][ T5340] option from the mount to silence this warning. [ 85.308218][ T5340] ======================================================= [ 85.415729][ T5340] loop0: detected capacity change from 512 to 64 [ 85.488361][ T5340] syz.0.0: attempt to access beyond end of device [ 85.488361][ T5340] loop0: rw=8912896, sector=168, nr_sectors = 8 limit=64 [ 85.504280][ T5340] syz.0.0: attempt to access beyond end of device [ 85.504280][ T5340] loop0: rw=8388608, sector=168, nr_sectors = 8 limit=64 [ 85.509651][ T5340] syz.0.0: attempt to access beyond end of device [ 85.509651][ T5340] loop0: rw=8388608, sector=168, nr_sectors = 8 limit=64 [ 85.542844][ T1063] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory [ 85.555925][ T1063] EXT4-fs error (device loop0): __ext4_ext_dirty:206: inode #20: comm kworker/u4:9: mark_inode_dirty error [ 85.561654][ T5340] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory [ 85.579552][ T5340] EXT4-fs error (device loop0): ext4_splice_branch:479: inode #18: comm syz.0.0: mark_inode_dirty error [ 85.584910][ T1063] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory [ 85.593946][ T1063] EXT4-fs error (device loop0): __ext4_ext_dirty:206: inode #20: comm kworker/u4:9: mark_inode_dirty error [ 85.602025][ T5340] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory [ 85.614855][ T5340] EXT4-fs error (device loop0): ext4_dirty_inode:6502: inode #18: comm syz.0.0: mark_inode_dirty error [ 85.625335][ T1063] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6298: Out of memory [ 85.638182][ T1063] EXT4-fs error (device loop0): __ext4_ext_dirty:206: inode #20: comm kworker/u4:9: mark_inode_dirty error [ 85.748010][ T5340] syz.0.0: attempt to access beyond end of device [ 85.748010][ T5340] loop0: rw=2049, sector=66, nr_sectors = 4 limit=64 [ 85.754292][ T5340] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 18 starting block 33) [ 85.759638][ T5340] Buffer I/O error on device loop0, logical block 33 [ 85.762980][ T5340] Buffer I/O error on device loop0, logical block 34 [ 85.881144][ T5340] syz.0.0: attempt to access beyond end of device [ 85.881144][ T5340] loop0: rw=2049, sector=390, nr_sectors = 20 limit=64 [ 85.887499][ T5340] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 18 starting block 195) [ 85.892408][ T5340] Buffer I/O error on device loop0, logical block 195 [ 85.895470][ T5340] Buffer I/O error on device loop0, logical block 196 [ 85.898453][ T5340] Buffer I/O error on device loop0, logical block 197 [ 85.901441][ T5340] Buffer I/O error on device loop0, logical block 198 [ 85.904403][ T5340] Buffer I/O error on device loop0, logical block 199 [ 85.907282][ T5340] Buffer I/O error on device loop0, logical block 200 [ 85.910281][ T5340] Buffer I/O error on device loop0, logical block 201 [ 85.913268][ T5340] Buffer I/O error on device loop0, logical block 202 [ 86.025078][ T5340] ------------[ cut here ]------------ [ 86.027816][ T5340] kernel BUG at fs/ext4/mballoc.c:4787! [ 86.030096][ T5340] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 86.032702][ T5340] CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.036056][ T5340] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.040369][ T5340] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 86.043338][ T5340] Code: e8 64 61 a8 ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 e0 b6 40 ff 90 0f 0b e8 d8 b6 40 ff 90 0f 0b e8 d0 b6 40 ff 90 <0f> 0b e8 c8 b6 40 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 86.051408][ T5340] RSP: 0018:ffffc9000defebe8 EFLAGS: 00010287 [ 86.053993][ T5340] RAX: ffffffff82805090 RBX: 00000000ffffffee RCX: 0000000000100000 [ 86.057303][ T5340] RDX: ffffc90020952000 RSI: 00000000000126f2 RDI: 00000000000126f3 [ 86.060732][ T5340] RBP: 1ffff11008e07780 R08: ffff88804703c24b R09: 1ffff11008e07849 [ 86.064109][ T5340] R10: dffffc0000000000 R11: ffffed1008e0784a R12: 0000000000000000 [ 86.067668][ T5340] R13: 0000000000000014 R14: 1ffff11008e0784c R15: ffff88804703c260 [ 86.071064][ T5340] FS: 00007f45811f56c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 [ 86.074788][ T5340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.077511][ T5340] CR2: 00007fe17d6f03a0 CR3: 0000000011633000 CR4: 0000000000352ef0 [ 86.080712][ T5340] Call Trace: [ 86.082131][ T5340] [ 86.083391][ T5340] ext4_mb_use_preallocated+0x660/0x13f0 [ 86.085563][ T5340] ext4_mb_new_blocks+0x5a1/0x46a0 [ 86.087638][ T5340] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 86.089980][ T5340] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 86.092418][ T5340] ? ext4_block_to_path+0x297/0x6f0 [ 86.094733][ T5340] ext4_ind_map_blocks+0xe22/0x2190 [ 86.097011][ T5340] ? stack_trace_save+0x9c/0xe0 [ 86.099206][ T5340] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 86.101757][ T5340] ? ext4_map_blocks+0x73f/0x16f0 [ 86.104024][ T5340] ? __pfx_down_write+0x10/0x10 [ 86.106313][ T5340] ? ext4_es_lookup_extent+0x6cd/0xb00 [ 86.108770][ T5340] ext4_map_blocks+0x7d2/0x16f0 [ 86.110962][ T5340] ? __pfx_ext4_map_blocks+0x10/0x10 [ 86.113319][ T5340] ? rcu_is_watching+0x15/0xb0 [ 86.115486][ T5340] ? trace_kmem_cache_alloc+0x1f/0xb0 [ 86.117851][ T5340] ? kmem_cache_alloc_noprof+0x3ce/0x710 [ 86.120445][ T5340] ? __ext4_journal_ensure_credits+0x30/0x450 [ 86.123298][ T5340] ext4_do_writepages+0x18bb/0x4500 [ 86.125773][ T5340] ? __pfx_ext4_do_writepages+0x10/0x10 [ 86.128399][ T5340] ? __lock_acquire+0x6b6/0x2cf0 [ 86.130718][ T5340] ? __free_object+0x442/0x5e0 [ 86.132928][ T5340] ? lockdep_hardirqs_on+0x7b/0x110 [ 86.135366][ T5340] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 86.137804][ T5340] ? ext4_writepages+0x1ca/0x350 [ 86.139873][ T5340] ? ext4_writepages+0x1ca/0x350 [ 86.141901][ T5340] ext4_writepages+0x203/0x350 [ 86.143862][ T5340] ? __pfx_ext4_writepages+0x10/0x10 [ 86.145984][ T5340] ? __lock_acquire+0x6b6/0x2cf0 [ 86.148037][ T5340] ? __pfx_ext4_writepages+0x10/0x10 [ 86.150181][ T5340] do_writepages+0x32e/0x550 [ 86.152275][ T5340] __writeback_single_inode+0x133/0x1240 [ 86.154788][ T5340] ? do_raw_spin_unlock+0x4d/0x240 [ 86.157094][ T5340] writeback_single_inode+0x493/0xc70 [ 86.159424][ T5340] write_inode_now+0x160/0x1d0 [ 86.161408][ T5340] ? __pfx_write_inode_now+0x10/0x10 [ 86.163596][ T5340] ? do_raw_spin_unlock+0x4d/0x240 [ 86.165642][ T5340] iput+0xa77/0x1030 [ 86.167383][ T5340] __dentry_kill+0x209/0x660 [ 86.169520][ T5340] ? finish_dput+0xad/0x480 [ 86.171591][ T5340] finish_dput+0xc9/0x480 [ 86.173520][ T5340] __fput+0x68e/0xa70 [ 86.175317][ T5340] task_work_run+0x1d4/0x260 [ 86.177413][ T5340] ? __pfx_task_work_run+0x10/0x10 [ 86.179697][ T5340] ? ksys_write+0x22a/0x250 [ 86.181790][ T5340] exit_to_user_mode_loop+0xef/0x4e0 [ 86.184065][ T5340] ? rcu_is_watching+0x15/0xb0 [ 86.186268][ T5340] do_syscall_64+0x2c1/0xf80 [ 86.188313][ T5340] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.191129][ T5340] ? trace_irq_disable+0x37/0x100 [ 86.193330][ T5340] ? clear_bhb_loop+0x60/0xb0 [ 86.195491][ T5340] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.198100][ T5340] RIP: 0033:0x7f4584d8f7c9 [ 86.200200][ T5340] 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 [ 86.208599][ T5340] RSP: 002b:00007f45811f5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.212406][ T5340] RAX: 0000000000007c80 RBX: 00007f4584fe5fa0 RCX: 00007f4584d8f7c9 [ 86.215876][ T5340] RDX: 000000000001040c RSI: 0000200000000380 RDI: 0000000000000004 [ 86.219516][ T5340] RBP: 00007f4584e13f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.223058][ T5340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.226320][ T5340] R13: 00007f4584fe6038 R14: 00007f4584fe5fa0 R15: 00007ffdc2b12a08 [ 86.229547][ T5340] [ 86.230928][ T5340] Modules linked in: [ 86.233604][ T5340] ---[ end trace 0000000000000000 ]--- [ 86.236043][ T5340] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 86.238809][ T5340] Code: e8 64 61 a8 ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 e0 b6 40 ff 90 0f 0b e8 d8 b6 40 ff 90 0f 0b e8 d0 b6 40 ff 90 <0f> 0b e8 c8 b6 40 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 86.249419][ T5340] RSP: 0018:ffffc9000defebe8 EFLAGS: 00010287 [ 86.252612][ T5340] RAX: ffffffff82805090 RBX: 00000000ffffffee RCX: 0000000000100000 [ 86.256347][ T5340] RDX: ffffc90020952000 RSI: 00000000000126f2 RDI: 00000000000126f3 [ 86.259946][ T5340] RBP: 1ffff11008e07780 R08: ffff88804703c24b R09: 1ffff11008e07849 [ 86.263486][ T5340] R10: dffffc0000000000 R11: ffffed1008e0784a R12: 0000000000000000 [ 86.267122][ T5340] R13: 0000000000000014 R14: 1ffff11008e0784c R15: ffff88804703c260 [ 86.270592][ T5340] FS: 00007f45811f56c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000 [ 86.274444][ T5340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.277215][ T5340] CR2: 00007fe17d6f03a0 CR3: 0000000011633000 CR4: 0000000000352ef0 [ 86.280648][ T5340] Kernel panic - not syncing: Fatal exception [ 86.283528][ T5340] Kernel Offset: disabled [ 86.285425][ T5340] Rebooting in 86400 seconds..