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) write$proc_mixer(r0, &(0x7f0000000080)=[{'VOLUME', @val={' \'', 'Synth'}}, {'PCM', @val={' \'', 'CD Capture'}}, {'IGAIN', @void}, {'MONITOR', @void}], 0x58) creat(&(0x7f0000000040)='./bus\x00', 0x0) (async) creat(&(0x7f0000000040)='./bus\x00', 0x0) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) (async) r1 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r1, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x1c, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x204]}) (async) ioctl$LOOP_SET_STATUS64(r1, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x1c, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x204]}) write$cgroup_int(r0, &(0x7f0000000380), 0x1040c) close(r0) [ 85.463022][ T5326] loop0: detected capacity change from 0 to 512 [ 85.530453][ T5326] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 85.535818][ T5326] ext4 filesystem being mounted at /0/file1 supports timestamps until 2038-01-19 (0x7fffffff) [ 85.579189][ T5326] loop0: detected capacity change from 512 to 64 [ 85.625254][ T1040] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6305: Out of memory [ 85.632299][ T1040] EXT4-fs error (device loop0): ext4_splice_branch:479: inode #18: comm kworker/u4:7: mark_inode_dirty error [ 85.651321][ T1040] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6305: Out of memory [ 85.663439][ T1040] EXT4-fs error (device loop0): ext4_dirty_inode:6509: inode #18: comm kworker/u4:7: mark_inode_dirty error [ 85.693705][ T5327] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6305: Out of memory [ 85.701743][ T5327] EXT4-fs error (device loop0): ext4_dirty_inode:6509: inode #18: comm syz.0.0: mark_inode_dirty error [ 85.714867][ T5327] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6305: Out of memory [ 85.729759][ T5327] EXT4-fs error (device loop0): ext4_dirty_inode:6509: inode #18: comm syz.0.0: mark_inode_dirty error [ 85.740992][ T5327] EXT4-fs error (device loop0) in ext4_reserve_inode_write:6305: Out of memory [ 85.749594][ T5327] EXT4-fs error (device loop0): ext4_dirty_inode:6509: inode #18: comm syz.0.0: mark_inode_dirty error [ 85.761820][ T5327] syz.0.0: attempt to access beyond end of device [ 85.761820][ T5327] loop0: rw=2049, sector=258, nr_sectors = 24 limit=64 [ 85.767497][ T5327] EXT4-fs warning (device loop0): ext4_end_bio:372: I/O error 10 writing to inode 18 starting block 129) [ 85.773367][ T5327] Buffer I/O error on device loop0, logical block 129 [ 85.776482][ T5327] Buffer I/O error on device loop0, logical block 130 [ 85.779669][ T5327] Buffer I/O error on device loop0, logical block 131 [ 85.782553][ T5327] Buffer I/O error on device loop0, logical block 132 [ 85.786451][ T5327] Buffer I/O error on device loop0, logical block 133 [ 85.789512][ T5327] Buffer I/O error on device loop0, logical block 134 [ 85.792595][ T5327] Buffer I/O error on device loop0, logical block 135 [ 85.795630][ T5327] Buffer I/O error on device loop0, logical block 136 [ 85.801127][ T5327] Buffer I/O error on device loop0, logical block 137 [ 85.804110][ T5327] Buffer I/O error on device loop0, logical block 138 [ 85.838754][ T4666] Bluetooth: hci0: command tx timeout [ 85.912240][ T5327] ------------[ cut here ]------------ [ 85.915426][ T5327] kernel BUG at fs/ext4/mballoc.c:4765! [ 85.918228][ T5327] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 85.921188][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.925089][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.929680][ T5327] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 85.932266][ T5327] Code: e8 64 ee a9 ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 a0 b4 42 ff 90 0f 0b e8 98 b4 42 ff 90 0f 0b e8 90 b4 42 ff 90 <0f> 0b e8 88 b4 42 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 85.939960][ T5327] RSP: 0018:ffffc9000d416c28 EFLAGS: 00010293 [ 85.942614][ T5327] RAX: ffffffff827d9f00 RBX: 00000000fffffffc RCX: ffff88801c49a480 [ 85.945914][ T5327] RDX: 0000000000000000 RSI: 0000000000000034 RDI: 0000000000000030 [ 85.949377][ T5327] RBP: 1ffff110085eea07 R08: ffff888042f76333 R09: 1ffff110085eec66 [ 85.952833][ T5327] R10: dffffc0000000000 R11: ffffed10085eec67 R12: 0000000000000000 [ 85.956166][ T5327] R13: 0000000000000034 R14: 1ffff110085eec69 R15: ffff888042f76348 [ 85.959492][ T5327] FS: 00007f623cdd46c0(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000 [ 85.963023][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.965729][ T5327] CR2: 00007f6241715698 CR3: 0000000011154000 CR4: 0000000000352ef0 [ 85.969064][ T5327] Call Trace: [ 85.970529][ T5327] [ 85.971894][ T5327] ext4_mb_use_preallocated+0x660/0x13f0 [ 85.974361][ T5327] ext4_mb_new_blocks+0x5b4/0x4720 [ 85.976578][ T5327] ? rcu_is_watching+0x15/0xb0 [ 85.978642][ T5327] ? __pfx_ext4_new_meta_blocks+0x10/0x10 [ 85.981088][ T5327] ? __pfx_ext4_mb_new_blocks+0x10/0x10 [ 85.983495][ T5327] ? ext4_block_to_path+0x297/0x6f0 [ 85.985767][ T5327] ext4_ind_map_blocks+0xe42/0x21c0 [ 85.988092][ T5327] ? __pfx_ext4_ind_map_blocks+0x10/0x10 [ 85.990520][ T5327] ? __pfx_down_write+0x10/0x10 [ 85.992727][ T5327] ? ext4_es_lookup_extent+0x622/0xa70 [ 85.995115][ T5327] ext4_map_blocks+0x7fe/0x1740 [ 85.997110][ T5327] ? __pfx_ext4_map_blocks+0x10/0x10 [ 85.999240][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.001190][ T5327] ? trace_kmem_cache_alloc+0x1f/0xc0 [ 86.003340][ T5327] ? kmem_cache_alloc_noprof+0x3b8/0x6e0 [ 86.005567][ T5327] ext4_do_writepages+0x16a1/0x4610 [ 86.007639][ T5327] ? __free_object+0x4e3/0x6d0 [ 86.009569][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.011781][ T5327] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 86.014310][ T5327] ? __pfx_ext4_do_writepages+0x10/0x10 [ 86.016667][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.018724][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.020846][ T5327] ? rcu_read_lock_any_held+0xb3/0x120 [ 86.023226][ T5327] ext4_writepages+0x205/0x350 [ 86.025191][ T5327] ? __pfx_ext4_writepages+0x10/0x10 [ 86.027185][ T5327] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 86.029625][ T5327] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 86.032385][ T5327] ? __pfx_ext4_writepages+0x10/0x10 [ 86.034783][ T5327] do_writepages+0x32e/0x550 [ 86.036806][ T5327] ? __pfx_inode_wait_for_writeback+0x10/0x10 [ 86.039454][ T5327] ? do_raw_spin_lock+0x121/0x290 [ 86.041675][ T5327] __writeback_single_inode+0x145/0xff0 [ 86.044067][ T5327] ? do_raw_spin_unlock+0x4d/0x240 [ 86.046231][ T5327] writeback_single_inode+0x1f9/0x6a0 [ 86.048601][ T5327] write_inode_now+0x160/0x1d0 [ 86.050746][ T5327] ? __pfx_write_inode_now+0x10/0x10 [ 86.053243][ T5327] ? do_raw_spin_unlock+0x4d/0x240 [ 86.055505][ T5327] iput+0x830/0xc50 [ 86.057282][ T5327] __dentry_kill+0x209/0x660 [ 86.059294][ T5327] ? dput+0x37/0x2b0 [ 86.061071][ T5327] dput+0x19f/0x2b0 [ 86.062809][ T5327] __fput+0x68e/0xa70 [ 86.064574][ T5327] task_work_run+0x1d4/0x260 [ 86.066557][ T5327] ? __pfx_task_work_run+0x10/0x10 [ 86.068814][ T5327] ? exit_to_user_mode_loop+0x40/0x130 [ 86.071205][ T5327] exit_to_user_mode_loop+0xe9/0x130 [ 86.073493][ T5327] do_syscall_64+0x2bd/0xfa0 [ 86.075504][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.077811][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.080519][ T5327] ? clear_bhb_loop+0x60/0xb0 [ 86.082581][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.085058][ T5327] RIP: 0033:0x7f624098eec9 [ 86.086984][ T5327] 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 [ 86.094311][ T5327] RSP: 002b:00007f623cdd4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 86.097910][ T5327] RAX: 000000000001040c RBX: 00007f6240be6090 RCX: 00007f624098eec9 [ 86.101415][ T5327] RDX: 000000000001040c RSI: 0000200000000380 RDI: 0000000000000004 [ 86.104659][ T5327] RBP: 00007f6240a11f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.108015][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.111407][ T5327] R13: 00007f6240be6128 R14: 00007f6240be6090 R15: 00007fffe542dc68 [ 86.114830][ T5327] [ 86.116180][ T5327] Modules linked in: [ 86.118350][ T5327] ---[ end trace 0000000000000000 ]--- [ 86.120854][ T5327] RIP: 0010:ext4_mb_use_inode_pa+0x6c1/0x720 [ 86.123385][ T5327] Code: e8 64 ee a9 ff 48 ba 00 00 00 00 00 fc ff df e9 da fa ff ff e8 a0 b4 42 ff 90 0f 0b e8 98 b4 42 ff 90 0f 0b e8 90 b4 42 ff 90 <0f> 0b e8 88 b4 42 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 [ 86.131918][ T5327] RSP: 0018:ffffc9000d416c28 EFLAGS: 00010293 [ 86.134548][ T5327] RAX: ffffffff827d9f00 RBX: 00000000fffffffc RCX: ffff88801c49a480 [ 86.138050][ T5327] RDX: 0000000000000000 RSI: 0000000000000034 RDI: 0000000000000030 [ 86.142610][ T5327] RBP: 1ffff110085eea07 R08: ffff888042f76333 R09: 1ffff110085eec66 [ 86.145736][ T5327] R10: dffffc0000000000 R11: ffffed10085eec67 R12: 0000000000000000 [ 86.148929][ T5327] R13: 0000000000000034 R14: 1ffff110085eec69 R15: ffff888042f76348 [ 86.152299][ T5327] FS: 00007f623cdd46c0(0000) GS:ffff88808d301000(0000) knlGS:0000000000000000 [ 86.156109][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.159343][ T5327] CR2: 00007f6241715698 CR3: 0000000011154000 CR4: 0000000000352ef0 [ 86.162674][ T5327] Kernel panic - not syncing: Fatal exception [ 86.165573][ T5327] Kernel Offset: disabled [ 86.167499][ T5327] Rebooting in 86400 seconds..