nting journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:04 executing program 4: prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:04 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:04 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:04 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r1) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:04 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:05 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:05 executing program 4: prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:05 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:05 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r1) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:05 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 446.290105][ T9438] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 447.886048][ T9462] ext4_ioctl_checkpoint: 3 callbacks suppressed [ 447.886059][ T9462] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 447.909595][ T9471] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 447.926447][ T9468] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:06 executing program 4: prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:06 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:07 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r1) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:07 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:07 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:07 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 447.932663][ T9461] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 449.241289][ T9486] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:08 executing program 4: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:08 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:08 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:08 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:08 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:08 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 449.365086][ T9492] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 450.307547][ T9507] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 450.369796][ T9509] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 450.405409][ T9511] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:09 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:09 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:09 executing program 4: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:09 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:09 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:09 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 4: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:10 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:11 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 450.447997][ T9508] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 453.868783][ T9573] ext4_ioctl_checkpoint: 5 callbacks suppressed [ 453.868795][ T9573] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 453.974572][ T9581] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:12 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, 0x0, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:12 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:12 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:12 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:13 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:13 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 454.005326][ T9579] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 454.994426][ T9593] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:13 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:14 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:14 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:14 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 455.029823][ T9598] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:14 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 455.967317][ T9608] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:14 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:15 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:15 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:15 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x0, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 456.224008][ T9613] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 457.063662][ T9627] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:16 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:16 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:16 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:16 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:16 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:16 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 457.082539][ T9626] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:17 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:17 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:17 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:17 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:17 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:17 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 458.228835][ T9650] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 459.393265][ T9668] ext4_ioctl_checkpoint: 1 callbacks suppressed 15:41:18 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:18 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:18 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x0, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:18 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 459.393281][ T9668] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 460.385785][ T9684] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:19 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:19 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:19 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:19 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:19 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(0x0, 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 460.480283][ T9685] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 461.545528][ T9702] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:20 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:20 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:20 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:20 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(0x0, 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 462.316776][ T9715] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 462.837683][ T9728] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 462.866452][ T9729] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 462.883540][ T9725] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:21 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:21 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:21 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(0x0, 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:21 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:21 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:21 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 462.928676][ T9726] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:22 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:22 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x0, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:23 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:23 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:23 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:23 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 463.878271][ T9738] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 465.210014][ T9762] ext4_ioctl_checkpoint: 2 callbacks suppressed [ 465.210029][ T9762] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 465.216239][ T9767] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 465.250107][ T9754] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:24 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:24 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:24 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x0, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:24 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:24 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:24 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 465.267911][ T9763] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 466.436421][ T9775] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 466.518755][ T9776] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:25 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x0, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:25 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:25 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:25 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:25 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:25 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 466.582626][ T9777] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 467.653127][ T9794] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:26 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:26 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:26 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:26 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x0) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:26 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:26 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 467.726586][ T9797] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:27 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x0) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:27 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:27 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:28 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:28 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:28 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:28 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x0) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 468.818387][ T9820] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 470.342592][ T9845] ext4_ioctl_checkpoint: 4 callbacks suppressed 15:41:28 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:28 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:29 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r0 = dup(0xffffffffffffffff) write$6lowpan_enable(r0, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:29 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:29 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 470.342607][ T9845] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 471.373043][ T9864] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 471.420547][ T9866] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:29 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:29 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r0 = dup(0xffffffffffffffff) write$6lowpan_enable(r0, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:30 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:30 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:30 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 471.437396][ T9865] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 472.464898][ T9878] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 472.467213][ T9877] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:31 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r0 = dup(0xffffffffffffffff) write$6lowpan_enable(r0, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:31 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:31 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:31 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:31 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:31 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 472.524185][ T9884] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 473.598594][ T9897] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:32 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:32 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:32 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:32 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:32 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) [ 473.637546][ T9899] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:33 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:33 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:33 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:33 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:34 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:34 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 474.835456][ T9914] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 476.085734][ T9937] ext4_ioctl_checkpoint: 4 callbacks suppressed [ 476.085745][ T9937] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:34 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:35 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:35 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:35 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:35 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 476.143076][ T9943] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:35 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, 0x0, 0x0) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 477.162062][ T9955] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:36 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:36 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:36 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:36 executing program 5: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:36 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, 0x0, 0x0) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:36 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, 0x0, 0x0) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 477.995860][ T9976] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:37 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:37 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, 0x0, 0x0) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:37 executing program 5: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:37 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:37 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 478.408611][ T9982] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:37 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:38 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 479.383297][ T9996] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:38 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:38 executing program 5: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:38 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:38 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 480.070818][T10019] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:39 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:39 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:39 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:39 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:39 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:39 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 480.727733][T10033] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 481.700666][T10046] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:40 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:40 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:40 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:40 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:40 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) [ 481.722277][T10042] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 482.792453][T10060] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:41 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:41 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:41 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:41 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) dup(r0) write$6lowpan_enable(0xffffffffffffffff, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r1, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:41 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:41 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 482.863788][T10068] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 483.925314][T10084] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 483.936803][T10083] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 483.959618][T10092] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 484.000850][T10091] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:42 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:42 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:42 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:43 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:43 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:43 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 484.001076][T10093] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:44 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:44 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:44 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:44 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:44 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:44 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:45 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:45 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:45 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:45 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:45 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 485.326924][T10111] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 487.759181][T10155] ext4_ioctl_checkpoint: 3 callbacks suppressed 15:41:45 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 487.759192][T10155] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 487.823673][T10153] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:46 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:46 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:46 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:46 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:46 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 487.858047][T10156] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 488.925437][T10174] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 489.005131][T10175] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:47 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:47 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:48 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:48 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:48 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:48 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) [ 489.036061][T10173] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:49 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:49 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:49 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:49 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 490.122522][T10195] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 491.114982][T10206] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:49 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 491.213568][T10212] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:50 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:50 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:50 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:50 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:51 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:51 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) [ 491.936276][T10220] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 493.136792][T10240] ext4_ioctl_checkpoint: 2 callbacks suppressed [ 493.136807][T10240] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 493.171061][T10243] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:52 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:52 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:52 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:52 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:52 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, 0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:52 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 493.229092][T10242] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:53 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:53 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:53 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:53 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, 0x0, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:53 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:53 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 494.348154][T10259] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 495.579981][T10291] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 495.609923][T10289] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:54 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:54 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:54 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:54 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:54 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:54 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 495.698585][T10292] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:55 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:55 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:55 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:55 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:55 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:55 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 496.742257][T10311] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 497.893754][T10330] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:56 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:56 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:57 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:57 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:57 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 497.897574][T10332] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 499.069827][T10343] ext4_ioctl_checkpoint: 1 callbacks suppressed [ 499.069838][T10343] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 499.766885][T10360] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:41:58 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:58 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:58 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:58 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:58 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:58 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 499.886008][T10361] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 500.646916][T10375] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 501.393571][ T1227] ieee802154 phy0 wpan0: encryption failed: -22 [ 501.411314][ T1227] ieee802154 phy1 wpan1: encryption failed: -22 15:41:59 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:59 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:59 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:59 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:41:59 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 501.698514][T10386] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 502.228794][T10397] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:00 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:00 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:01 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:01 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:01 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 502.294647][T10396] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 503.324220][T10404] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:02 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:02 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:02 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:02 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, 0x0, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:02 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:02 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 503.415662][T10412] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 504.470038][T10432] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 504.482884][T10434] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 504.508440][T10435] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:03 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:03 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:03 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:03 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:03 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 504.561207][T10433] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 505.680358][T10450] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 505.685001][T10452] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 505.736752][T10447] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:04 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:04 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:04 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:04 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:04 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:04 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 505.767977][T10451] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 507.025356][T10472] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:05 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:05 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:06 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:06 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:06 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, 0x0, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:06 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, 0x0) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, 0x0, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:07 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 507.036446][T10473] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 509.493417][T10512] ext4_ioctl_checkpoint: 5 callbacks suppressed [ 509.493429][T10512] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 509.516140][T10521] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:08 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:08 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:08 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:08 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:08 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:08 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, 0x0, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 509.542693][T10515] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 510.676555][T10541] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 510.699901][T10536] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 510.714543][T10538] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:09 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:09 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:09 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:09 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:09 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:09 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 510.752232][T10539] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 511.949856][T10559] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:10 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:11 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:11 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0), &(0x7f0000000040)) syz_io_uring_submit(0x0, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:11 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:11 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:11 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 511.986136][T10556] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:12 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:12 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:12 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:12 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:12 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:12 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:13 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 513.092889][T10582] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 515.587815][T10623] ext4_ioctl_checkpoint: 4 callbacks suppressed [ 515.587830][T10623] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:14 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:14 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:14 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:14 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:14 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:14 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 515.612701][T10621] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 516.669862][T10639] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:15 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, 0x0, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:15 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:15 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:15 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:15 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r3, r2, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r2, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r4 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r4, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:15 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 516.705369][T10646] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 517.878301][T10672] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:16 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:16 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:16 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:16 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:16 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, 0x0, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:16 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 517.982099][T10671] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 519.075847][T10686] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:17 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:18 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:18 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:18 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, 0x0, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:18 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:18 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 519.161701][T10691] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 520.312581][T10717] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:19 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:19 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:19 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:19 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:19 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:19 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, 0x0, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 520.329617][T10720] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 521.646071][T10747] ext4_ioctl_checkpoint: 2 callbacks suppressed [ 521.646222][T10747] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 521.652435][T10745] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 521.677100][T10744] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 521.700321][T10742] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:20 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:20 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:20 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:20 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:20 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:21 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 521.718158][T10743] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 523.135884][T10769] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 523.150583][T10763] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 523.163523][T10768] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 523.233986][T10764] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:22 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:22 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:22 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:22 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:22 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:22 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:23 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:24 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 523.285497][T10771] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 526.957943][T10834] ext4_ioctl_checkpoint: 5 callbacks suppressed 15:42:26 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:26 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:26 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:26 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 526.957959][T10834] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:26 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x0, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:27 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:27 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:27 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 528.046888][T10848] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:27 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 528.952818][T10865] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 529.449481][T10876] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 529.485654][T10879] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 529.487004][T10877] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:27 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:28 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:28 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, 0x0, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:28 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x0) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:28 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:28 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 529.523831][T10878] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:29 executing program 0: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:29 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, 0x0, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:29 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:29 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x0) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:29 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, 0x0, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 530.657028][T10894] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 531.784573][T10918] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:30 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:30 executing program 0: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:30 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, 0x0, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:30 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x0) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:30 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:30 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 531.804568][T10915] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 532.866647][T10931] ext4_ioctl_checkpoint: 1 callbacks suppressed [ 532.866663][T10931] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:31 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:31 executing program 0: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:31 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:32 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:32 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:32 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 533.479192][T10946] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 534.423713][T10962] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 534.446689][T10956] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:33 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:33 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:33 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:33 executing program 3: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 534.468207][T10959] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 535.507904][T10970] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 535.513665][T10979] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 535.551866][T10974] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:34 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:34 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:34 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:34 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:34 executing program 3: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:34 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 535.704558][T10977] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:35 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, 0x0) 15:42:35 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:35 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:35 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:35 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:35 executing program 3: syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(0xffffffffffffffff, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 536.805478][T11000] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 538.032326][T11021] ext4_ioctl_checkpoint: 1 callbacks suppressed [ 538.032337][T11021] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 538.062513][T11019] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:36 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, 0x0) 15:42:37 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:37 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:37 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:37 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:37 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 538.104879][T11025] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:38 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:38 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:38 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, 0x0) [ 539.198689][T11036] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 540.274597][T11050] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:38 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x0, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:39 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:39 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x0, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:39 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:39 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) [ 540.290056][T11051] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 541.244021][T11068] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 541.303091][T11069] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:40 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:40 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:40 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:40 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x0, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 541.320593][T11070] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:41 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) 15:42:41 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:41 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:41 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:41 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 542.481451][T11081] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 543.582819][T11102] ext4_ioctl_checkpoint: 3 callbacks suppressed [ 543.582836][T11102] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:42 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) 15:42:42 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) 15:42:42 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:42 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, 0x0, &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:42 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:42 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 543.676367][T11105] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 544.781123][T11130] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:43 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:43 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) 15:42:43 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r5, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r5, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(0xffffffffffffffff, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:43 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, 0x0) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:43 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x0, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:43 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 544.875965][T11131] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:44 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:44 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:44 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:45 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, 0x0) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 545.923246][T11147] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 547.004734][T11169] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:45 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:45 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)) 15:42:45 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:45 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:46 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:46 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, 0x0) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 547.091914][T11172] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:46 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:47 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x0, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:47 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:47 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:47 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x0, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 548.053548][T11185] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 549.104779][T11207] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:48 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:48 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:48 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:48 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x0, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:48 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400), &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 549.192729][T11208] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 550.313810][T11221] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 550.349510][T11223] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:49 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:49 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:49 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:49 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:49 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:49 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400), &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 550.455896][T11231] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 551.620280][T11252] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:50 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:50 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:50 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 551.823012][T11251] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 552.593590][ T918] kworker/dying (918) used greatest stack depth: 13016 bytes left 15:42:50 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400), &(0x7f0000000040)) syz_io_uring_submit(0x0, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:50 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:51 executing program 3: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 552.867467][T11275] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 552.893570][T11278] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:51 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:51 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:51 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:51 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:52 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:52 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:53 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:53 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:53 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:53 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 552.976159][T11277] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 555.042054][T11312] ext4_ioctl_checkpoint: 1 callbacks suppressed 15:42:53 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 555.042116][T11312] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:53 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x0) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 555.705058][T11320] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:53 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:54 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:54 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:54 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 555.766240][T11324] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 556.817798][T11332] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:55 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:55 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:55 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, 0x0, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:55 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 556.924642][T11337] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 557.892989][T11355] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:56 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:56 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:56 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:56 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:56 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:56 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, 0x0, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 557.978564][T11356] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 558.892473][T11370] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:57 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:58 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:58 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, 0x0, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:58 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, 0x0, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:58 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:58 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, 0x0, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 558.956784][T11378] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:59 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:59 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:59 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 560.140237][T11392] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:42:59 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:42:59 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:00 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:00 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 561.132041][T11407] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:00 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:00 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 562.017610][T11420] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 562.758199][T11431] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 562.788244][T11432] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 562.833201][ T1227] ieee802154 phy0 wpan0: encryption failed: -22 [ 562.848902][ T1227] ieee802154 phy1 wpan1: encryption failed: -22 15:43:01 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:01 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x0, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:01 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:01 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:01 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 563.820693][T11446] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 563.865046][T11449] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:02 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:02 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:02 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:02 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:02 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:02 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 563.942510][T11450] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 565.076760][T11470] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 565.078281][T11474] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 565.171914][T11476] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 565.196006][T11473] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:04 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:04 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, 0x0, &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:04 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:04 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:04 executing program 2: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x0, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:04 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 565.208787][T11471] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 566.498907][T11496] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 566.500205][T11495] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 566.522209][T11494] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 566.557188][T11497] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:05 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:05 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:05 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x0, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:05 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:05 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:05 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x0, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 566.586205][T11493] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 567.819566][T11513] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:06 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:06 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:06 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r7, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:06 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:06 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, 0x0, &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:08 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 567.857286][T11514] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 570.186067][T11553] ext4_ioctl_checkpoint: 3 callbacks suppressed 15:43:09 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', 0x0, 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:09 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x0) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:09 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:09 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 570.186082][T11553] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:10 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:10 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:10 executing program 3: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x0, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:10 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 571.121412][T11567] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 572.177470][T11582] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:10 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:11 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:11 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:11 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 572.195203][T11583] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:12 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:12 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:12 executing program 2: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x0, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:12 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 573.169500][T11596] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:13 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:13 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x0, 0x400, 'syz0\x00', &(0x7f0000000080), 0x0, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:13 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:13 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) [ 574.169107][T11607] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 575.201984][T11622] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:14 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:14 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:14 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, 0x0, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:14 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 575.316286][T11621] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 576.520594][T11642] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 576.549188][T11640] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:15 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:15 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:15 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:15 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:15 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:15 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 576.572352][T11641] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 577.706356][T11657] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:16 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:16 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:16 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:16 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:16 executing program 3: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 577.751496][T11659] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow 15:43:17 executing program 0: r0 = syz_open_procfs(0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x0, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:17 executing program 1: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, r7, &(0x7f0000000140), 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:17 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x2, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x0, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:17 executing program 4: syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r0 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r1 = dup(r0) write$6lowpan_enable(r1, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x0) syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x0, 0x0, 0x0, 0x4) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r4, r3, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r3, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r5 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x0, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_submit(0x0, r6, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r2, r6, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r5, 0x4004662b, &(0x7f0000000000)=0x2) 15:43:18 executing program 2: r0 = syz_open_procfs(0x0, &(0x7f0000000500)='coredump_filter\x00') prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) r1 = syz_open_dev$sndmidi(&(0x7f0000000040), 0x2, 0x141101) r2 = dup(r1) write$6lowpan_enable(r2, &(0x7f0000000000)='0', 0xfffffd2c) fchmod(0xffffffffffffffff, 0x2) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040)=0x0, &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77b, &(0x7f0000000280), &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000ee7000/0x4000)=nil, &(0x7f00000014c0)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r5, r4, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(0x0, r4, &(0x7f0000000100)=@IORING_OP_READV=@use_registered_buffer={0x1, 0x3, 0x6000, @fd_index=0x7, 0x100, 0x0, 0x0, 0x4, 0x0, {0x3}}, 0x80000000) ioctl$SNDRV_CTL_IOCTL_ELEM_INFO(r0, 0xc1105511, &(0x7f0000000200)={{0x0, 0x1, 0x8, 0x4, '\x00', 0x6}, 0x5, 0x30, 0x0, 0xffffffffffffffff, 0x1, 0x400, 'syz0\x00', &(0x7f0000000080)=['/dev/snd/midiC#D#\x00'], 0x12, '\x00', [0x200, 0x2, 0x80, 0x9]}) syz_io_uring_submit(0x0, 0x0, &(0x7f00000000c0)=@IORING_OP_TIMEOUT_REMOVE={0xc, 0x3, 0x0, 0x0, 0x0, 0x23456}, 0x8001) r6 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f00000001c0)='cgroup.controllers\x00', 0x275a, 0x0) syz_io_uring_setup(0x184, &(0x7f0000000080), &(0x7f0000147000/0x2000)=nil, &(0x7f0000149000/0x3000)=nil, &(0x7f0000000040), &(0x7f0000000100)=0x0) syz_io_uring_setup(0x77e, &(0x7f0000000380)={0x0, 0xa007, 0x0, 0x0, 0x100023d}, &(0x7f0000ffc000/0x1000)=nil, &(0x7f0000147000/0x4000)=nil, &(0x7f0000000400)=0x0, &(0x7f0000000040)) syz_io_uring_submit(r8, r7, &(0x7f0000000340)=@IORING_OP_OPENAT={0x12, 0x3, 0x0, 0xffffffffffffff9c, 0x0, 0x0}, 0x0) syz_io_uring_submit(r3, 0x0, &(0x7f0000000140)=@IORING_OP_NOP={0x0, 0x5}, 0x1f3) ioctl$EXT4_IOC_CHECKPOINT(r6, 0x4004662b, &(0x7f0000000000)=0x2) [ 578.861190][T11672] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 580.017056][T11692] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 580.027877][T11700] warning: checkpointing journal with EXT4_IOC_CHECKPOINT_FLAG_ZEROOUT can be slow [ 580.067354][T11692] ==================================================================