r0 = perf_event_open(&(0x7f0000001d80)={0x1, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5e, 0x442, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000, 0x0, @perf_config_ext={0xa}, 0x0, 0x0, 0x0, 0x3, 0x1, 0x40}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0)
ioctl$SECCOMP_IOCTL_NOTIF_RECV(r0, 0xc0502100, &(0x7f00000000c0))
r1 = syz_open_procfs(0x0, &(0x7f0000000000)='mounts\x00')
readv(r1, &(0x7f0000001600)=[{&(0x7f00000004c0)=""/4096, 0x1000}], 0x1)
r2 = syz_open_procfs(0x0, &(0x7f0000000280)='fd/4\x00')
ioctl$FIONREAD(r2, 0x6801, 0x0)
ioctl$FIONREAD(r0, 0x541b, &(0x7f0000001980))
syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0)
mount$9p_unix(&(0x7f0000000140)='./file0/../file0\x00', &(0x7f0000000200)='./file0/../file0\x00', 0x0, 0x53000, 0x0)
ioctl$sock_SIOCGPGRP(r1, 0x8904, &(0x7f0000000040))
r3 = openat(0xffffffffffffffff, &(0x7f00000001c0)='./file1\x00', 0x80, 0x0)
preadv(r3, 0x0, 0x0, 0x401, 0x0)
getresuid(&(0x7f00000015c0), &(0x7f0000001800), &(0x7f0000001840)=<r4=>0x0)
stat(0x0, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, <r5=>0x0})
setresuid(0xffffffffffffffff, r5, 0x0)
mount$9p_fd(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f00000002c0), 0x300020, &(0x7f0000001880)={'trans=fd,', {'rfdno', 0x3d, r3}, 0x2c, {'wfdno', 0x3d, r2}, 0x2c, {[{@msize={'msize', 0x3d, 0x7e}}, {@access_any}], [{@uid_eq={'uid', 0x3d, r4}}, {@dont_hash}, {@seclabel}, {@fscontext={'fscontext', 0x3d, 'sysadm_u'}}, {@fowner_eq={'fowner', 0x3d, r5}}, {@audit}]}})
syz_mount_image$tmpfs(0x0, &(0x7f0000000080)='./file0/../file0\x00', 0x0, 0x0, 0x0, 0x100000, &(0x7f0000000440)=ANY=[])
mkdir(&(0x7f0000000300)='./file0/file0\x00', 0x20)
unshare(0x48020200)