fs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 415.306197] Call Trace: [ 415.306222] dump_stack+0x1c4/0x2b4 [ 415.306246] ? dump_stack_print_info.cold.2+0x52/0x52 [ 415.306276] should_fail.cold.4+0xa/0x17 [ 415.306310] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 415.306333] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 415.339494] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 415.344607] ? lockdep_hardirqs_on+0x421/0x5c0 [ 415.349196] ? graph_lock+0x170/0x170 [ 415.353004] ? trace_hardirqs_on+0xbd/0x310 [ 415.357331] ? kasan_check_read+0x11/0x20 [ 415.361480] ? ida_alloc_range+0x51e/0xad0 [ 415.365727] ? do_raw_spin_lock+0xc1/0x200 [ 415.369974] ? find_held_lock+0x36/0x1c0 [ 415.374062] ? ___might_sleep+0x1ed/0x300 [ 415.378217] ? arch_local_save_flags+0x40/0x40 [ 415.382818] __should_failslab+0x124/0x180 [ 415.387057] should_failslab+0x9/0x14 [ 415.390870] __kmalloc_track_caller+0x2d0/0x750 [ 415.395550] ? rcu_read_lock_sched_held+0x108/0x120 [ 415.400585] ? kstrdup_const+0x66/0x80 [ 415.404486] kstrdup+0x39/0x70 [ 415.407683] kstrdup_const+0x66/0x80 [ 415.411402] alloc_vfsmnt+0x186/0x990 [ 415.415211] ? m_stop+0x20/0x20 [ 415.418503] ? graph_lock+0x170/0x170 [ 415.422322] ? rcu_pm_notify+0xc0/0xc0 [ 415.426217] ? putname+0xf2/0x130 [ 415.429683] ? find_held_lock+0x36/0x1c0 [ 415.433760] ? __get_fs_type+0x97/0xc0 [ 415.437650] ? lock_downgrade+0x900/0x900 [ 415.441803] ? lock_release+0x970/0x970 [ 415.445787] ? digsig_verify+0x1530/0x1530 [ 415.450031] vfs_kern_mount.part.35+0x90/0x4f0 [ 415.454629] ? may_umount+0xb0/0xb0 [ 415.458259] ? _raw_read_unlock+0x2c/0x50 [ 415.462418] ? __get_fs_type+0x97/0xc0 [ 415.466324] do_mount+0x581/0x31f0 [ 415.469874] ? copy_mount_string+0x40/0x40 [ 415.474129] ? copy_mount_options+0x5f/0x380 [ 415.478540] ? rcu_read_lock_sched_held+0x108/0x120 [ 415.483581] ? kmem_cache_alloc_trace+0x353/0x750 [ 415.488433] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 415.493974] ? _copy_from_user+0xdf/0x150 [ 415.498131] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.503672] ? copy_mount_options+0x288/0x380 [ 415.508174] ksys_mount+0x12d/0x140 [ 415.511806] __x64_sys_mount+0xbe/0x150 [ 415.515790] do_syscall_64+0x1b9/0x820 [ 415.519680] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 415.525052] ? syscall_return_slowpath+0x5e0/0x5e0 [ 415.529993] ? trace_hardirqs_on_caller+0x310/0x310 [ 415.535016] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 415.540038] ? recalc_sigpending_tsk+0x180/0x180 [ 415.544799] ? kasan_check_write+0x14/0x20 [ 415.549042] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 415.553898] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 415.559089] RIP: 0033:0x457579 [ 415.562291] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 415.581207] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 415.588921] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 415.596192] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 415.603460] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 19:15:38 executing program 4 (fault-call:2 fault-nth:7): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 415.610732] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 415.618021] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:38 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") socketpair(0x0, 0x80807, 0x3ff, &(0x7f0000000040)={0xffffffffffffffff}) ioctl$KVM_ASSIGN_SET_MSIX_NR(r0, 0x4008ae73, &(0x7f0000000200)={0x0, 0x8}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='fd/4\x00') ioctl$KVM_SET_IRQCHIP(r1, 0x8208ae63, &(0x7f0000000100)={0x1, 0x0, @ioapic={0x4, 0x3, 0x81, 0x2, 0x0, [{0x80000000, 0x2000000, 0x4, [], 0xfffffffffffffff9}, {0x8, 0x1, 0x3, [], 0x7}, {0x80000001, 0x3, 0x81, [], 0xfffffffffffffffa}, {0x4, 0x10000, 0x2f1c083a, [], 0xfff}, {0x100000001, 0x81, 0x8, [], 0x26}, {0xffffffffffffff1b, 0x0, 0x100000000, [], 0x8}, {0x76, 0x6, 0x1}, {0x8001, 0x61e1, 0x5, [], 0x1}, {0x0, 0xa1, 0x88e, [], 0xfffffffffffffffb}, {0x7f, 0x6, 0x1c000000000000, [], 0x4}, {0xc6c, 0x80000000, 0x28000000000, [], 0x8}, {0x2, 0x0, 0x0, [], 0x6}, {0x5, 0x80, 0xff, [], 0x80000000}, {0x6, 0x7ff, 0x2, [], 0x400}, {0x6, 0x8000, 0x1f}, {0x5, 0xcd84, 0x8, [], 0x3}, {0x1ff, 0x1, 0x100, [], 0x4}, {0x3, 0x9, 0x101, [], 0x6}, {0x2, 0x1ff, 0x0, [], 0xbe}, {0x4, 0x7, 0x3, [], 0xffffffffffffd3c6}, {0x0, 0x1ff, 0x8, [], 0x7}, {0x6, 0x20, 0xe2c, [], 0xf35}, {0x6, 0x3, 0x9, [], 0x1f}, {0x0, 0x6, 0x4, [], 0x66215eca}]}}) 19:15:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squa%hfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfc000000]}, 0x10) shutdown(r0, 0x1) [ 415.756004] FAULT_INJECTION: forcing a failure. [ 415.756004] name failslab, interval 1, probability 0, space 0, times 0 [ 415.772332] CPU: 0 PID: 15014 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 415.779638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 415.789001] Call Trace: [ 415.791620] dump_stack+0x1c4/0x2b4 [ 415.795279] ? dump_stack_print_info.cold.2+0x52/0x52 [ 415.800524] should_fail.cold.4+0xa/0x17 [ 415.804620] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 415.809743] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 415.814863] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 415.819990] ? lockdep_hardirqs_on+0x421/0x5c0 [ 415.824600] ? graph_lock+0x170/0x170 [ 415.828422] ? trace_hardirqs_on+0xbd/0x310 [ 415.832759] ? kasan_check_read+0x11/0x20 [ 415.836926] ? ida_alloc_range+0x51e/0xad0 [ 415.841188] ? do_raw_spin_lock+0xc1/0x200 [ 415.845449] ? find_held_lock+0x36/0x1c0 [ 415.849547] ? ___might_sleep+0x1ed/0x300 [ 415.853720] ? arch_local_save_flags+0x40/0x40 [ 415.858354] __should_failslab+0x124/0x180 [ 415.862606] should_failslab+0x9/0x14 [ 415.866420] __kmalloc_track_caller+0x2d0/0x750 [ 415.871111] ? rcu_read_lock_sched_held+0x108/0x120 [ 415.876173] ? kstrdup_const+0x66/0x80 [ 415.876195] kstrdup+0x39/0x70 [ 415.876215] kstrdup_const+0x66/0x80 [ 415.876235] alloc_vfsmnt+0x186/0x990 [ 415.876255] ? m_stop+0x20/0x20 [ 415.890851] ? graph_lock+0x170/0x170 [ 415.890870] ? rcu_pm_notify+0xc0/0xc0 [ 415.890891] ? putname+0xf2/0x130 [ 415.890917] ? find_held_lock+0x36/0x1c0 [ 415.890942] ? __get_fs_type+0x97/0xc0 [ 415.913278] ? lock_downgrade+0x900/0x900 [ 415.917462] ? lock_release+0x970/0x970 [ 415.921459] ? digsig_verify+0x1530/0x1530 [ 415.925723] vfs_kern_mount.part.35+0x90/0x4f0 [ 415.930339] ? may_umount+0xb0/0xb0 [ 415.933991] ? _raw_read_unlock+0x2c/0x50 [ 415.938160] ? __get_fs_type+0x97/0xc0 [ 415.942069] do_mount+0x581/0x31f0 [ 415.945626] ? retint_kernel+0x1b/0x2d [ 415.949532] ? trace_hardirqs_on+0x310/0x310 [ 415.953969] ? copy_mount_string+0x40/0x40 [ 415.958231] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 415.963014] ? retint_kernel+0x2d/0x2d [ 415.966937] ? copy_mount_options+0x1a1/0x380 [ 415.971457] ? __sanitizer_cov_trace_pc+0x3b/0x50 [ 415.976333] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 415.981885] ? copy_mount_options+0x288/0x380 [ 415.985994] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 415.986399] ksys_mount+0x12d/0x140 [ 415.986420] __x64_sys_mount+0xbe/0x150 [ 415.986444] do_syscall_64+0x1b9/0x820 [ 415.986461] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 415.986481] ? syscall_return_slowpath+0x5e0/0x5e0 [ 415.986504] ? trace_hardirqs_on_caller+0x310/0x310 [ 416.020803] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 416.025833] ? recalc_sigpending_tsk+0x180/0x180 [ 416.030601] ? kasan_check_write+0x14/0x20 [ 416.034854] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 416.039715] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 416.044917] RIP: 0033:0x457579 [ 416.048123] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 416.067034] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 416.074755] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 416.082034] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 416.089317] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 416.096618] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 416.103915] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:38 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x7d, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:15:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squas\nfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:38 executing program 4 (fault-call:2 fault-nth:8): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 416.234538] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 416.279761] FAULT_INJECTION: forcing a failure. [ 416.279761] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 416.313873] CPU: 1 PID: 15044 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 416.321181] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 416.330536] Call Trace: [ 416.333159] dump_stack+0x1c4/0x2b4 [ 416.336814] ? dump_stack_print_info.cold.2+0x52/0x52 [ 416.342021] ? rcu_pm_notify+0xc0/0xc0 [ 416.345933] should_fail.cold.4+0xa/0x17 [ 416.345956] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 416.345976] ? graph_lock+0x170/0x170 [ 416.346000] ? pcpu_balance_workfn+0x1740/0x1740 [ 416.363717] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.369275] ? find_held_lock+0x36/0x1c0 [ 416.373406] ? ___might_sleep+0x1ed/0x300 [ 416.377571] ? lock_release+0x970/0x970 [ 416.381574] ? arch_local_save_flags+0x40/0x40 [ 416.386163] ? __might_sleep+0x95/0x190 [ 416.390140] __alloc_pages_nodemask+0x34b/0xde0 [ 416.394810] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 416.399846] ? graph_lock+0x170/0x170 [ 416.403654] ? rcu_pm_notify+0xc0/0xc0 [ 416.407537] ? find_held_lock+0x36/0x1c0 [ 416.411603] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 416.417126] alloc_pages_current+0x10c/0x210 [ 416.421526] get_zeroed_page+0x14/0x50 [ 416.425400] mount_fs+0x20e/0x31d [ 416.428842] ? digsig_verify+0x1530/0x1530 [ 416.433099] vfs_kern_mount.part.35+0xdc/0x4f0 [ 416.437684] ? may_umount+0xb0/0xb0 [ 416.441306] ? _raw_read_unlock+0x2c/0x50 [ 416.445651] ? __get_fs_type+0x97/0xc0 [ 416.449530] do_mount+0x581/0x31f0 [ 416.453067] ? copy_mount_string+0x40/0x40 [ 416.457318] ? copy_mount_options+0x5f/0x380 [ 416.461727] ? rcu_read_lock_sched_held+0x108/0x120 [ 416.466745] ? kmem_cache_alloc_trace+0x353/0x750 [ 416.471598] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 416.477131] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 416.482656] ? copy_mount_options+0x288/0x380 [ 416.487151] ksys_mount+0x12d/0x140 [ 416.490767] __x64_sys_mount+0xbe/0x150 [ 416.494735] do_syscall_64+0x1b9/0x820 [ 416.498624] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 416.504007] ? syscall_return_slowpath+0x5e0/0x5e0 [ 416.508943] ? trace_hardirqs_on_caller+0x310/0x310 [ 416.513949] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 416.518972] ? recalc_sigpending_tsk+0x180/0x180 [ 416.523729] ? kasan_check_write+0x14/0x20 [ 416.527971] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 416.532819] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 416.537998] RIP: 0033:0x457579 [ 416.541179] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 416.560068] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 416.567769] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 416.575030] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 416.582287] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 416.589556] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 416.596830] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:40 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x14, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:40 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x3f00000000000000]}, 0x10) shutdown(r0, 0x1) 19:15:40 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setxattr(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040)=@random={'btrfs.', 'cpuset\x00'}, &(0x7f0000000100)='\x00', 0x1, 0x2) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="2f6465a3996e756c6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:40 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squas%fs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:40 executing program 4 (fault-call:2 fault-nth:9): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 418.328466] FAULT_INJECTION: forcing a failure. [ 418.328466] name failslab, interval 1, probability 0, space 0, times 0 [ 418.340020] CPU: 0 PID: 15059 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 418.347342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 418.356708] Call Trace: [ 418.359331] dump_stack+0x1c4/0x2b4 [ 418.362992] ? dump_stack_print_info.cold.2+0x52/0x52 [ 418.368215] should_fail.cold.4+0xa/0x17 [ 418.372291] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 418.377428] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 418.382553] ? trace_hardirqs_on+0xbd/0x310 [ 418.386897] ? kasan_check_read+0x11/0x20 [ 418.391066] ? debug_check_no_obj_freed+0x305/0x58d [ 418.396101] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 418.401580] ? graph_lock+0x170/0x170 [ 418.405393] ? kasan_check_write+0x14/0x20 [ 418.409652] ? do_raw_spin_lock+0xc1/0x200 [ 418.413903] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 418.419458] ? check_preemption_disabled+0x48/0x200 [ 418.424500] ? find_held_lock+0x36/0x1c0 19:15:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xffffffff00000000]}, 0x10) shutdown(r0, 0x1) [ 418.428607] ? ___might_sleep+0x1ed/0x300 [ 418.432779] ? arch_local_save_flags+0x40/0x40 [ 418.437375] ? mark_free_pages+0x3c0/0x3c0 [ 418.441637] __should_failslab+0x124/0x180 [ 418.445887] should_failslab+0x9/0x14 [ 418.445907] kmem_cache_alloc+0x2be/0x730 [ 418.445935] getname_kernel+0x54/0x370 [ 418.445953] kern_path+0x1e/0x40 [ 418.453909] lookup_bdev+0x10c/0x250 [ 418.453927] ? blkdev_open+0x280/0x280 [ 418.453955] blkdev_get_by_path+0x1f/0xe0 [ 418.453972] mount_bdev+0x5d/0x3e0 [ 418.453991] ? init_once+0x20/0x20 [ 418.454012] squashfs_mount+0x34/0x40 [ 418.454035] mount_fs+0xae/0x31d [ 418.487279] vfs_kern_mount.part.35+0xdc/0x4f0 [ 418.491889] ? may_umount+0xb0/0xb0 [ 418.495536] ? _raw_read_unlock+0x2c/0x50 [ 418.499728] ? __get_fs_type+0x97/0xc0 [ 418.503638] do_mount+0x581/0x31f0 [ 418.507207] ? copy_mount_string+0x40/0x40 [ 418.511473] ? copy_mount_options+0x5f/0x380 [ 418.515904] ? rcu_read_lock_sched_held+0x108/0x120 [ 418.520941] ? kmem_cache_alloc_trace+0x353/0x750 [ 418.525802] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 418.531357] ? _copy_from_user+0xdf/0x150 [ 418.535531] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 418.541095] ? copy_mount_options+0x288/0x380 [ 418.545601] ksys_mount+0x12d/0x140 [ 418.549235] __x64_sys_mount+0xbe/0x150 [ 418.553241] do_syscall_64+0x1b9/0x820 [ 418.557121] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 418.562477] ? syscall_return_slowpath+0x5e0/0x5e0 [ 418.567402] ? trace_hardirqs_on_caller+0x310/0x310 [ 418.572431] ? prepare_exit_to_usermode+0x3b0/0x3b0 19:15:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2000]}, 0x10) shutdown(r0, 0x1) [ 418.577465] ? recalc_sigpending_tsk+0x180/0x180 [ 418.582233] ? kasan_check_write+0x14/0x20 [ 418.586492] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 418.591363] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 418.596578] RIP: 0033:0x457579 [ 418.599787] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 418.618730] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 19:15:41 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB='/\'eb0\x00'], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash\ns\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 418.626513] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 418.633799] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 418.641080] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 418.648368] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 418.655655] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:41 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x2, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:15:41 executing program 4 (fault-call:2 fault-nth:10): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfeffffff00000000]}, 0x10) shutdown(r0, 0x1) [ 419.213155] FAULT_INJECTION: forcing a failure. [ 419.213155] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 419.225011] CPU: 0 PID: 15088 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 419.232305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 419.241669] Call Trace: [ 419.244271] dump_stack+0x1c4/0x2b4 [ 419.247928] ? dump_stack_print_info.cold.2+0x52/0x52 [ 419.253146] should_fail.cold.4+0xa/0x17 [ 419.257224] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.262347] ? mark_held_locks+0x130/0x130 [ 419.266622] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 419.271660] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 419.277488] ? mark_held_locks+0x130/0x130 [ 419.281743] ? wait_for_completion+0x8a0/0x8a0 [ 419.286350] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.291905] ? check_preemption_disabled+0x48/0x200 [ 419.296947] ? find_held_lock+0x36/0x1c0 [ 419.301033] ? debug_check_no_obj_freed+0x305/0x58d [ 419.306072] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.311616] ? should_fail+0x22d/0xd01 [ 419.315495] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 419.320611] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 419.325726] ? trace_hardirqs_on+0xbd/0x310 [ 419.330055] ? kasan_check_read+0x11/0x20 [ 419.334218] __alloc_pages_nodemask+0x34b/0xde0 [ 419.338898] ? kasan_check_write+0x14/0x20 [ 419.343146] ? do_raw_spin_lock+0xc1/0x200 [ 419.343167] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 419.343192] ? find_held_lock+0x36/0x1c0 [ 419.352455] ? ___might_sleep+0x1ed/0x300 [ 419.352490] ? trace_hardirqs_off+0xb8/0x310 [ 419.352511] cache_grow_begin+0x91/0x8c0 [ 419.352529] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.352547] ? check_preemption_disabled+0x48/0x200 [ 419.352577] kmem_cache_alloc+0x665/0x730 [ 419.383899] getname_kernel+0x54/0x370 [ 419.387780] kern_path+0x1e/0x40 [ 419.391136] lookup_bdev+0x10c/0x250 [ 419.394840] ? blkdev_open+0x280/0x280 [ 419.398844] blkdev_get_by_path+0x1f/0xe0 [ 419.402984] mount_bdev+0x5d/0x3e0 [ 419.406515] ? init_once+0x20/0x20 [ 419.410054] squashfs_mount+0x34/0x40 [ 419.413849] mount_fs+0xae/0x31d [ 419.417250] vfs_kern_mount.part.35+0xdc/0x4f0 [ 419.421829] ? may_umount+0xb0/0xb0 [ 419.425440] ? _raw_read_unlock+0x2c/0x50 [ 419.429589] ? __get_fs_type+0x97/0xc0 [ 419.433476] do_mount+0x581/0x31f0 [ 419.437003] ? copy_mount_string+0x40/0x40 [ 419.441245] ? copy_mount_options+0x5f/0x380 [ 419.445655] ? rcu_read_lock_sched_held+0x108/0x120 [ 419.450662] ? kmem_cache_alloc_trace+0x353/0x750 [ 419.455498] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 419.461026] ? _copy_from_user+0xdf/0x150 [ 419.465175] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 419.470715] ? copy_mount_options+0x288/0x380 [ 419.475202] ksys_mount+0x12d/0x140 [ 419.478835] __x64_sys_mount+0xbe/0x150 [ 419.482827] do_syscall_64+0x1b9/0x820 [ 419.486718] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 419.492094] ? syscall_return_slowpath+0x5e0/0x5e0 [ 419.497028] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.501860] ? trace_hardirqs_on_caller+0x310/0x310 [ 419.506874] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 419.511877] ? prepare_exit_to_usermode+0x291/0x3b0 [ 419.516883] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 419.521732] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 419.526911] RIP: 0033:0x457579 [ 419.530092] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 419.548976] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 419.556671] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 419.563923] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 419.571176] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 419.578431] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 419.585685] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 419.595991] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:43 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x18, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:43 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$vhost_vsock(0xffffffffffffff9c, &(0x7f0000000000)='/dev/vhost-vsock\x00', 0x2, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="da37202f646576f3e3ab2203"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:43 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash%s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:43 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x20000000]}, 0x10) shutdown(r0, 0x1) 19:15:43 executing program 4 (fault-call:2 fault-nth:11): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 421.373543] FAULT_INJECTION: forcing a failure. [ 421.373543] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 421.385413] CPU: 0 PID: 15107 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 421.392702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 421.402061] Call Trace: [ 421.404669] dump_stack+0x1c4/0x2b4 [ 421.408328] ? dump_stack_print_info.cold.2+0x52/0x52 [ 421.413544] should_fail.cold.4+0xa/0x17 [ 421.417624] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 421.422753] ? mark_held_locks+0x130/0x130 [ 421.426997] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 421.432026] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 421.437841] ? mark_held_locks+0x130/0x130 [ 421.442104] ? wait_for_completion+0x8a0/0x8a0 [ 421.446699] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.452250] ? check_preemption_disabled+0x48/0x200 [ 421.457284] ? find_held_lock+0x36/0x1c0 [ 421.461372] ? debug_check_no_obj_freed+0x305/0x58d [ 421.466420] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.471968] ? should_fail+0x22d/0xd01 [ 421.475869] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 421.480988] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 421.486104] ? trace_hardirqs_on+0xbd/0x310 [ 421.490465] ? kasan_check_read+0x11/0x20 [ 421.494650] __alloc_pages_nodemask+0x34b/0xde0 [ 421.499343] ? kasan_check_write+0x14/0x20 [ 421.503603] ? do_raw_spin_lock+0xc1/0x200 [ 421.507860] ? __alloc_pages_slowpath+0x2d80/0x2d80 [ 421.512904] ? find_held_lock+0x36/0x1c0 [ 421.516998] ? ___might_sleep+0x1ed/0x300 19:15:44 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000740)='/dev/ptmx\x00', 0x80, 0x0) ioctl$PIO_FONT(r0, 0x4b61, &(0x7f0000000780)="26bc0fafa1fdbf375bef5ba585021f9bdb4e05792bfc11f1bb9a86a410d4b1ab9db8246ab5afa8ffe32c1aa44905662d161c1befbcbbf9a9c587601cb95377b8d19ba118d892344b134ab91ce54c3c") mkdir(&(0x7f0000000080)='./file0\x00', 0x0) getsockopt$inet6_IPV6_IPSEC_POLICY(0xffffffffffffffff, 0x29, 0x22, &(0x7f0000000100)={{{@in6=@mcast2, @in=@rand_addr, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@remote}, 0x0, @in=@multicast2}}, &(0x7f0000000200)=0xe8) setxattr$security_capability(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040)='security.capability\x00', &(0x7f0000000240)=@v3={0x3000000, [{0x6, 0x5}, {0x2, 0x3}], r2}, 0x18, 0x2) r3 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getegid() r4 = syz_open_dev$adsp(&(0x7f0000000300)='/dev/adsp#\x00', 0x1f, 0x480) r5 = fcntl$dupfd(r3, 0x406, r3) getsockopt$inet_sctp_SCTP_DELAYED_SACK(r4, 0x84, 0x10, &(0x7f0000000340)=@assoc_value={0x0, 0x8000}, &(0x7f0000000600)=0x8) getsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r5, 0x84, 0x6, &(0x7f0000000640)={r6, @in={{0x2, 0x4e21, @multicast2}}}, &(0x7f0000000700)=0x84) bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f00000003c0)={0xffffffffffffffff, r5, 0x0, 0x9, &(0x7f00000002c0)='squashfs\x00'}, 0x30) sched_setscheduler(r7, 0x7, &(0x7f0000000400)=0x8) setsockopt$inet6_IPV6_IPSEC_POLICY(r5, 0x29, 0x22, &(0x7f0000000440)={{{@in6=@remote, @in6=@remote, 0x4e23, 0x1, 0x4e24, 0x401, 0xa, 0x20, 0x80, 0x8, r1, r2}, {0x8f7, 0x9, 0x2, 0xfffffffffffffffb, 0x3, 0x6efe30fd, 0x80, 0x3}, {0x3ff000000, 0x1, 0x80000000, 0x7}, 0x100000001, 0x6e6bb2, 0x2, 0x0, 0x2, 0x1}, {{@in6=@local, 0x4d5, 0x32}, 0x2, @in=@local, 0x3505, 0x6, 0x0, 0x3, 0x31, 0xfffffffffffffffe, 0x8}}, 0xe8) setsockopt$inet_dccp_int(r5, 0x21, 0x0, &(0x7f00000000c0)=0x3ff, 0x4) ioctl$VT_ACTIVATE(r4, 0x5606, 0x3f) mount(&(0x7f0000000800)=ANY=[@ANYBLOB="2f6465762f6e756c6c623000db44c748b5039df4077b913d709098fd9a5860d52675c625ec4b30c4bb4ed6b64d0e48faaef13f9e70587ac5421fdd70c9a62d16066ff079f3c19160da4d92f523dfb27509c7852ddbdf2e13cc4f5d77b17e8693b28c1e524203a926b7439d2a4f3c68f5a2bce8faff3d5720c53d4a0fba820ccc9cc3f9a46e6100b41a8da5de8e347c652e2cf7e25b"], &(0x7f0000000280)='./file0\x00', &(0x7f00000005c0)='ext3\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 421.521170] ? trace_hardirqs_off+0xb8/0x310 [ 421.525603] cache_grow_begin+0x91/0x8c0 [ 421.529691] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 421.535252] ? check_preemption_disabled+0x48/0x200 [ 421.540283] kmem_cache_alloc+0x665/0x730 [ 421.544469] getname_kernel+0x54/0x370 [ 421.548377] kern_path+0x1e/0x40 [ 421.551762] lookup_bdev+0x10c/0x250 [ 421.555493] ? blkdev_open+0x280/0x280 [ 421.555523] blkdev_get_by_path+0x1f/0xe0 [ 421.555542] mount_bdev+0x5d/0x3e0 [ 421.555568] ? init_once+0x20/0x20 [ 421.555590] squashfs_mount+0x34/0x40 [ 421.563621] mount_fs+0xae/0x31d [ 421.563646] vfs_kern_mount.part.35+0xdc/0x4f0 [ 421.563666] ? may_umount+0xb0/0xb0 [ 421.563682] ? _raw_read_unlock+0x2c/0x50 [ 421.563701] ? __get_fs_type+0x97/0xc0 [ 421.594149] do_mount+0x581/0x31f0 [ 421.597712] ? copy_mount_string+0x40/0x40 [ 421.601976] ? copy_mount_options+0x5f/0x380 [ 421.606407] ? rcu_read_lock_sched_held+0x108/0x120 [ 421.611436] ? kmem_cache_alloc_trace+0x353/0x750 [ 421.616287] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 421.621856] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.627404] ? copy_mount_options+0x288/0x380 [ 421.631917] ksys_mount+0x12d/0x140 [ 421.635559] __x64_sys_mount+0xbe/0x150 [ 421.639571] do_syscall_64+0x1b9/0x820 [ 421.643473] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 421.648857] ? syscall_return_slowpath+0x5e0/0x5e0 [ 421.653804] ? trace_hardirqs_on_caller+0x310/0x310 [ 421.658835] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 421.663863] ? recalc_sigpending_tsk+0x180/0x180 [ 421.668631] ? kasan_check_write+0x14/0x20 [ 421.672888] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 421.677754] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 421.682439] EXT4-fs (nullb0): VFS: Can't find ext4 filesystem [ 421.688823] RIP: 0033:0x457579 [ 421.688841] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 421.688850] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 19:15:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash.s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:44 executing program 4 (fault-call:2 fault-nth:12): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 421.688869] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 421.688892] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 421.688901] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 421.688924] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 421.688933] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x4000000]}, 0x10) shutdown(r0, 0x1) [ 421.843180] FAULT_INJECTION: forcing a failure. [ 421.843180] name failslab, interval 1, probability 0, space 0, times 0 [ 421.906340] CPU: 0 PID: 15126 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 421.913652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 421.923027] Call Trace: [ 421.925651] dump_stack+0x1c4/0x2b4 [ 421.929309] ? dump_stack_print_info.cold.2+0x52/0x52 [ 421.934518] ? radix_tree_descend+0x13c/0x2e0 [ 421.939041] should_fail.cold.4+0xa/0x17 [ 421.943119] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 421.948236] ? graph_lock+0x170/0x170 [ 421.952062] ? graph_lock+0x170/0x170 [ 421.955877] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 421.961428] ? graph_lock+0x170/0x170 [ 421.965256] ? find_held_lock+0x36/0x1c0 [ 421.969349] ? __lock_is_held+0xb5/0x140 [ 421.973439] ? ___might_sleep+0x1ed/0x300 [ 421.977603] ? arch_local_save_flags+0x40/0x40 [ 421.982199] __should_failslab+0x124/0x180 [ 421.986440] should_failslab+0x9/0x14 [ 421.990259] __kmalloc+0x2d4/0x760 [ 421.993807] ? __list_lru_init+0x151/0x840 [ 421.998051] __list_lru_init+0x151/0x840 [ 422.002144] ? list_lru_destroy+0x500/0x500 [ 422.006475] ? up_write+0x7b/0x220 [ 422.010016] ? up_read+0x110/0x110 [ 422.013557] ? down_read+0x1d0/0x1d0 [ 422.017284] ? init_wait_entry+0x1c0/0x1c0 [ 422.021533] ? prealloc_shrinker+0xe5/0x330 [ 422.025876] sget_userns+0x999/0xf10 [ 422.029593] ? kill_litter_super+0x60/0x60 [ 422.033832] ? ns_test_super+0x50/0x50 [ 422.037746] ? destroy_unused_super.part.10+0x110/0x110 [ 422.043112] ? kasan_check_write+0x14/0x20 [ 422.047346] ? do_raw_spin_lock+0xc1/0x200 [ 422.051593] ? blkdev_get+0xc8/0xb50 [ 422.055320] ? cap_capable+0x1f9/0x260 [ 422.059218] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.064769] ? security_capable+0x99/0xc0 [ 422.068936] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.074488] ? ns_capable_common+0x13f/0x170 [ 422.078900] ? kill_litter_super+0x60/0x60 [ 422.083135] sget+0x10b/0x150 [ 422.086241] ? ns_test_super+0x50/0x50 [ 422.090134] mount_bdev+0x111/0x3e0 [ 422.093768] ? init_once+0x20/0x20 [ 422.097323] squashfs_mount+0x34/0x40 [ 422.101127] mount_fs+0xae/0x31d [ 422.104504] vfs_kern_mount.part.35+0xdc/0x4f0 [ 422.109094] ? may_umount+0xb0/0xb0 [ 422.112720] ? _raw_read_unlock+0x2c/0x50 [ 422.116871] ? __get_fs_type+0x97/0xc0 [ 422.120763] do_mount+0x581/0x31f0 [ 422.124319] ? copy_mount_string+0x40/0x40 [ 422.128577] ? copy_mount_options+0x5f/0x380 [ 422.132989] ? rcu_read_lock_sched_held+0x108/0x120 [ 422.138243] ? kmem_cache_alloc_trace+0x353/0x750 [ 422.143107] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 422.148655] ? _copy_from_user+0xdf/0x150 [ 422.152813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 422.158347] ? copy_mount_options+0x288/0x380 [ 422.162847] ksys_mount+0x12d/0x140 [ 422.166478] __x64_sys_mount+0xbe/0x150 [ 422.170462] do_syscall_64+0x1b9/0x820 [ 422.174359] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 422.179729] ? syscall_return_slowpath+0x5e0/0x5e0 [ 422.184666] ? trace_hardirqs_on_caller+0x310/0x310 [ 422.189689] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 422.194754] ? recalc_sigpending_tsk+0x180/0x180 [ 422.199513] ? kasan_check_write+0x14/0x20 [ 422.203754] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 422.208610] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 422.213801] RIP: 0033:0x457579 [ 422.216995] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 422.235896] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 422.243846] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 422.251116] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 422.258394] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 422.265664] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 422.272931] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:44 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x6, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:15:44 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) llistxattr(&(0x7f0000000000)='./file0\x00', &(0x7f00000000c0)=""/167, 0xa7) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) 19:15:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash/s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfe800000]}, 0x10) shutdown(r0, 0x1) 19:15:47 executing program 4 (fault-call:2 fault-nth:13): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:47 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0)=0x0, &(0x7f0000000200)=0x0) getgroups(0x4, &(0x7f0000000240)=[0xee00, 0x0, 0xffffffffffffffff, 0xee00]) write$FUSE_CREATE_OPEN(r0, &(0x7f00000003c0)={0xa0, 0x0, 0x2, {{0x5, 0x0, 0x4, 0x80000001, 0x6, 0x1ff, {0x4, 0x8001, 0x3ff, 0x401, 0x4, 0xfffffffffffffffb, 0x7, 0x5, 0x5, 0x1, 0x8, r4, r6, 0x0, 0x81}}}}, 0xa0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r5, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:15:47 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x4, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashf\n\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 424.399171] FAULT_INJECTION: forcing a failure. [ 424.399171] name failslab, interval 1, probability 0, space 0, times 0 [ 424.441976] CPU: 0 PID: 15152 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 424.449322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 424.449605] 9pnet: p9_fd_create_unix (15154): problem connecting socket: ./file0/file0: -2 [ 424.458683] Call Trace: [ 424.458712] dump_stack+0x1c4/0x2b4 [ 424.458739] ? dump_stack_print_info.cold.2+0x52/0x52 [ 424.458764] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.458792] ? check_preemption_disabled+0x48/0x200 [ 424.458820] should_fail.cold.4+0xa/0x17 [ 424.458844] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 424.458869] ? graph_lock+0x170/0x170 [ 424.458891] ? graph_lock+0x170/0x170 [ 424.458924] ? find_held_lock+0x36/0x1c0 [ 424.458947] ? __lock_is_held+0xb5/0x140 [ 424.458979] ? ___might_sleep+0x1ed/0x300 [ 424.458996] ? __lockdep_init_map+0x105/0x590 [ 424.459017] ? arch_local_save_flags+0x40/0x40 [ 424.459037] ? lockdep_init_map+0x9/0x10 [ 424.459066] __should_failslab+0x124/0x180 [ 424.459088] should_failslab+0x9/0x14 [ 424.459106] __kmalloc+0x2d4/0x760 [ 424.459130] ? __init_waitqueue_head+0x9e/0x150 [ 424.547842] ? init_wait_entry+0x1c0/0x1c0 [ 424.552091] ? prealloc_shrinker+0xe5/0x330 [ 424.556436] prealloc_shrinker+0xe5/0x330 [ 424.560613] sget_userns+0x969/0xf10 [ 424.564348] ? kill_litter_super+0x60/0x60 [ 424.568603] ? ns_test_super+0x50/0x50 [ 424.572506] ? destroy_unused_super.part.10+0x110/0x110 [ 424.577889] ? kasan_check_write+0x14/0x20 [ 424.581282] 9pnet: p9_fd_create_unix (15163): problem connecting socket: ./file0/file0: -2 [ 424.582141] ? do_raw_spin_lock+0xc1/0x200 [ 424.582166] ? blkdev_get+0xc8/0xb50 [ 424.582186] ? cap_capable+0x1f9/0x260 [ 424.582210] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.608014] ? security_capable+0x99/0xc0 [ 424.612179] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.617735] ? ns_capable_common+0x13f/0x170 [ 424.622171] ? kill_litter_super+0x60/0x60 [ 424.626427] sget+0x10b/0x150 [ 424.629551] ? ns_test_super+0x50/0x50 [ 424.633472] mount_bdev+0x111/0x3e0 [ 424.637114] ? init_once+0x20/0x20 [ 424.640650] squashfs_mount+0x34/0x40 [ 424.644442] mount_fs+0xae/0x31d [ 424.647804] vfs_kern_mount.part.35+0xdc/0x4f0 [ 424.652379] ? may_umount+0xb0/0xb0 [ 424.656089] ? _raw_read_unlock+0x2c/0x50 [ 424.660231] ? __get_fs_type+0x97/0xc0 [ 424.664112] do_mount+0x581/0x31f0 [ 424.667647] ? copy_mount_string+0x40/0x40 [ 424.671896] ? copy_mount_options+0x5f/0x380 [ 424.676321] ? rcu_read_lock_sched_held+0x108/0x120 [ 424.681334] ? kmem_cache_alloc_trace+0x353/0x750 [ 424.686169] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 424.691694] ? _copy_from_user+0xdf/0x150 [ 424.695848] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 424.701389] ? copy_mount_options+0x288/0x380 [ 424.705879] ksys_mount+0x12d/0x140 [ 424.709513] __x64_sys_mount+0xbe/0x150 [ 424.713498] do_syscall_64+0x1b9/0x820 [ 424.717375] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 424.722737] ? syscall_return_slowpath+0x5e0/0x5e0 [ 424.727668] ? trace_hardirqs_on_caller+0x310/0x310 [ 424.732694] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 424.737700] ? recalc_sigpending_tsk+0x180/0x180 [ 424.742451] ? kasan_check_write+0x14/0x20 [ 424.746698] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 424.751537] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 424.756727] RIP: 0033:0x457579 [ 424.759912] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 424.778803] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 424.786498] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 19:15:47 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = syz_open_dev$mice(&(0x7f0000000100)='/dev/input/mice\x00', 0x0, 0x101800) getsockopt$bt_l2cap_L2CAP_CONNINFO(r0, 0x6, 0x2, &(0x7f0000000180), &(0x7f00000001c0)=0x6) connect$llc(r0, &(0x7f0000000140)={0x1a, 0x308, 0xfffffffffffffff9, 0x1, 0x401, 0xd33e, @random="a1d1d144725d"}, 0x10) r1 = syz_open_dev$mice(&(0x7f0000000040)='/dev/input/mice\x00', 0x0, 0x101800) fcntl$setlease(r1, 0x400, 0x1) r2 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0xe, 0x0, 0xffff, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_SET_FILTER(r2, 0x40082406, &(0x7f0000000000)='squashfs\x00') setsockopt$SO_RDS_MSG_RXPATH_LATENCY(r1, 0x114, 0xa, &(0x7f0000000200)={0x1, "f7"}, 0x2) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(r2, 0x40042409, 0x1) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashf%\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 424.793755] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 424.801011] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 424.808266] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 424.815530] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:47 executing program 4 (fault-call:2 fault-nth:14): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x600000000000000]}, 0x10) shutdown(r0, 0x1) [ 424.976914] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 424.994964] FAULT_INJECTION: forcing a failure. [ 424.994964] name failslab, interval 1, probability 0, space 0, times 0 [ 425.014835] CPU: 1 PID: 15181 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 425.022153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 425.031517] Call Trace: [ 425.034132] dump_stack+0x1c4/0x2b4 [ 425.037787] ? dump_stack_print_info.cold.2+0x52/0x52 [ 425.043000] ? radix_tree_descend+0x13c/0x2e0 [ 425.047533] should_fail.cold.4+0xa/0x17 [ 425.051626] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 425.056758] ? graph_lock+0x170/0x170 [ 425.060578] ? graph_lock+0x170/0x170 [ 425.064397] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.069940] ? graph_lock+0x170/0x170 [ 425.073771] ? find_held_lock+0x36/0x1c0 [ 425.077858] ? __lock_is_held+0xb5/0x140 [ 425.081949] ? ___might_sleep+0x1ed/0x300 [ 425.086113] ? arch_local_save_flags+0x40/0x40 [ 425.090723] __should_failslab+0x124/0x180 [ 425.094960] should_failslab+0x9/0x14 [ 425.098752] __kmalloc+0x2d4/0x760 [ 425.102316] ? __list_lru_init+0x151/0x840 [ 425.106546] __list_lru_init+0x151/0x840 [ 425.110601] ? list_lru_destroy+0x500/0x500 [ 425.114912] ? up_write+0x7b/0x220 [ 425.118441] ? up_read+0x110/0x110 [ 425.121972] ? down_read+0x1d0/0x1d0 [ 425.125679] ? init_wait_entry+0x1c0/0x1c0 [ 425.129903] ? prealloc_shrinker+0xe5/0x330 [ 425.134223] sget_userns+0x999/0xf10 [ 425.137926] ? kill_litter_super+0x60/0x60 [ 425.142250] ? ns_test_super+0x50/0x50 [ 425.146129] ? destroy_unused_super.part.10+0x110/0x110 [ 425.151485] ? kasan_check_write+0x14/0x20 [ 425.155715] ? do_raw_spin_lock+0xc1/0x200 [ 425.159944] ? blkdev_get+0xc8/0xb50 [ 425.163648] ? cap_capable+0x1f9/0x260 [ 425.167529] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.173055] ? security_capable+0x99/0xc0 [ 425.177207] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.182743] ? ns_capable_common+0x13f/0x170 [ 425.187146] ? kill_litter_super+0x60/0x60 [ 425.191370] sget+0x10b/0x150 [ 425.194466] ? ns_test_super+0x50/0x50 [ 425.198358] mount_bdev+0x111/0x3e0 [ 425.201996] ? init_once+0x20/0x20 [ 425.205532] squashfs_mount+0x34/0x40 [ 425.209331] mount_fs+0xae/0x31d [ 425.212695] vfs_kern_mount.part.35+0xdc/0x4f0 [ 425.217268] ? may_umount+0xb0/0xb0 [ 425.220885] ? _raw_read_unlock+0x2c/0x50 [ 425.225023] ? __get_fs_type+0x97/0xc0 [ 425.228900] do_mount+0x581/0x31f0 [ 425.232432] ? copy_mount_string+0x40/0x40 [ 425.236665] ? copy_mount_options+0x5f/0x380 [ 425.241070] ? rcu_read_lock_sched_held+0x108/0x120 [ 425.246084] ? kmem_cache_alloc_trace+0x353/0x750 [ 425.250932] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.256473] ? _copy_from_user+0xdf/0x150 [ 425.260630] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.266165] ? copy_mount_options+0x288/0x380 [ 425.270651] ksys_mount+0x12d/0x140 [ 425.274291] __x64_sys_mount+0xbe/0x150 [ 425.278271] do_syscall_64+0x1b9/0x820 [ 425.282148] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 425.287504] ? syscall_return_slowpath+0x5e0/0x5e0 [ 425.292431] ? trace_hardirqs_on_caller+0x310/0x310 [ 425.297448] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 425.302474] ? recalc_sigpending_tsk+0x180/0x180 [ 425.307222] ? kasan_check_write+0x14/0x20 [ 425.311450] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.316288] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 425.321481] RIP: 0033:0x457579 [ 425.324679] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 425.343566] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 425.351287] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 425.358549] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 425.365815] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 425.373087] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 425.380344] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:48 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs)', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x40000000]}, 0x10) shutdown(r0, 0x1) 19:15:48 executing program 4 (fault-call:2 fault-nth:15): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:48 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x3e80000, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 425.418879] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 425.483276] FAULT_INJECTION: forcing a failure. [ 425.483276] name failslab, interval 1, probability 0, space 0, times 0 [ 425.511914] CPU: 0 PID: 15191 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 425.519244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 425.528612] Call Trace: [ 425.531230] dump_stack+0x1c4/0x2b4 [ 425.534885] ? dump_stack_print_info.cold.2+0x52/0x52 [ 425.540112] should_fail.cold.4+0xa/0x17 [ 425.544196] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 425.549331] ? graph_lock+0x170/0x170 [ 425.553161] ? graph_lock+0x170/0x170 [ 425.556980] ? save_stack+0xa9/0xd0 [ 425.560617] ? save_stack+0x43/0xd0 [ 425.564255] ? kasan_kmalloc+0xc7/0xe0 [ 425.568152] ? __kmalloc+0x14e/0x760 [ 425.571879] ? __list_lru_init+0x151/0x840 [ 425.576130] ? find_held_lock+0x36/0x1c0 [ 425.580209] ? __lock_is_held+0xb5/0x140 [ 425.584307] ? ___might_sleep+0x1ed/0x300 [ 425.588471] ? arch_local_save_flags+0x40/0x40 [ 425.593068] ? check_preemption_disabled+0x48/0x200 [ 425.598105] ? check_preemption_disabled+0x48/0x200 [ 425.603154] __should_failslab+0x124/0x180 [ 425.607412] should_failslab+0x9/0x14 [ 425.611232] kmem_cache_alloc_node_trace+0x270/0x740 [ 425.616416] __kmalloc_node+0x33/0x70 [ 425.620255] kvmalloc_node+0x65/0xf0 [ 425.623992] __list_lru_init+0x5d9/0x840 [ 425.628117] ? list_lru_destroy+0x500/0x500 19:15:48 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 425.632459] ? up_write+0x7b/0x220 [ 425.636013] ? up_read+0x110/0x110 [ 425.639577] ? down_read+0x1d0/0x1d0 [ 425.643322] ? init_wait_entry+0x1c0/0x1c0 [ 425.647577] ? prealloc_shrinker+0xe5/0x330 [ 425.651921] sget_userns+0x999/0xf10 [ 425.655642] ? kill_litter_super+0x60/0x60 [ 425.659897] ? ns_test_super+0x50/0x50 [ 425.663797] ? destroy_unused_super.part.10+0x110/0x110 [ 425.669180] ? kasan_check_write+0x14/0x20 [ 425.673435] ? do_raw_spin_lock+0xc1/0x200 [ 425.673461] ? blkdev_get+0xc8/0xb50 [ 425.673489] ? cap_capable+0x1f9/0x260 [ 425.681444] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.690866] ? security_capable+0x99/0xc0 [ 425.695035] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.700594] ? ns_capable_common+0x13f/0x170 [ 425.705023] ? kill_litter_super+0x60/0x60 [ 425.709275] sget+0x10b/0x150 [ 425.712417] ? ns_test_super+0x50/0x50 [ 425.716340] mount_bdev+0x111/0x3e0 [ 425.719987] ? init_once+0x20/0x20 [ 425.723571] squashfs_mount+0x34/0x40 [ 425.727393] mount_fs+0xae/0x31d [ 425.730794] vfs_kern_mount.part.35+0xdc/0x4f0 [ 425.735402] ? may_umount+0xb0/0xb0 [ 425.739049] ? _raw_read_unlock+0x2c/0x50 [ 425.743212] ? __get_fs_type+0x97/0xc0 [ 425.747116] do_mount+0x581/0x31f0 [ 425.750684] ? copy_mount_string+0x40/0x40 [ 425.754942] ? copy_mount_options+0x5f/0x380 [ 425.759365] ? rcu_read_lock_sched_held+0x108/0x120 [ 425.764399] ? kmem_cache_alloc_trace+0x353/0x750 [ 425.769260] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 425.774806] ? _copy_from_user+0xdf/0x150 [ 425.778972] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 425.784524] ? copy_mount_options+0x288/0x380 [ 425.789046] ksys_mount+0x12d/0x140 [ 425.792694] __x64_sys_mount+0xbe/0x150 [ 425.796683] do_syscall_64+0x1b9/0x820 [ 425.800598] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 425.805980] ? syscall_return_slowpath+0x5e0/0x5e0 [ 425.810925] ? trace_hardirqs_on_caller+0x310/0x310 [ 425.816125] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 425.821155] ? recalc_sigpending_tsk+0x180/0x180 [ 425.825927] ? kasan_check_write+0x14/0x20 [ 425.830186] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 425.835056] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 425.840262] RIP: 0033:0x457579 [ 425.843477] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 425.862415] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 425.870126] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 425.877419] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 425.884685] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 425.891947] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 425.899205] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:48 executing program 4 (fault-call:2 fault-nth:16): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 425.926652] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 425.971401] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 425.990986] FAULT_INJECTION: forcing a failure. [ 425.990986] name failslab, interval 1, probability 0, space 0, times 0 [ 426.003832] CPU: 1 PID: 15209 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 426.011136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 426.020499] Call Trace: [ 426.023114] dump_stack+0x1c4/0x2b4 [ 426.026777] ? dump_stack_print_info.cold.2+0x52/0x52 [ 426.031987] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 426.037296] should_fail.cold.4+0xa/0x17 [ 426.041391] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 426.046512] ? kernel_text_address+0x79/0xf0 [ 426.050934] ? __kernel_text_address+0xd/0x40 [ 426.055442] ? graph_lock+0x170/0x170 [ 426.055463] ? __save_stack_trace+0x8d/0xf0 [ 426.055479] ? graph_lock+0x170/0x170 [ 426.055506] ? find_held_lock+0x36/0x1c0 [ 426.055526] ? __lock_is_held+0xb5/0x140 [ 426.063673] ? ___might_sleep+0x1ed/0x300 [ 426.063692] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.063711] ? arch_local_save_flags+0x40/0x40 [ 426.063743] __should_failslab+0x124/0x180 [ 426.063760] should_failslab+0x9/0x14 [ 426.063782] kmem_cache_alloc_trace+0x2d7/0x750 [ 426.071636] ? __kmalloc_node+0x33/0x70 [ 426.071653] ? __kmalloc_node+0x33/0x70 [ 426.071672] ? rcu_read_lock_sched_held+0x108/0x120 [ 426.071697] __memcg_init_list_lru_node+0x185/0x2d0 [ 426.071718] ? kvfree_rcu+0x20/0x20 [ 426.124286] ? __kmalloc_node+0x47/0x70 [ 426.128316] __list_lru_init+0x4d6/0x840 [ 426.132393] ? list_lru_destroy+0x500/0x500 [ 426.136929] ? up_write+0x7b/0x220 [ 426.140463] ? up_read+0x110/0x110 [ 426.143997] ? down_read+0x1d0/0x1d0 [ 426.147719] ? init_wait_entry+0x1c0/0x1c0 [ 426.151964] ? prealloc_shrinker+0xe5/0x330 [ 426.156309] sget_userns+0x999/0xf10 [ 426.160020] ? kill_litter_super+0x60/0x60 [ 426.164249] ? ns_test_super+0x50/0x50 [ 426.168157] ? destroy_unused_super.part.10+0x110/0x110 [ 426.173524] ? kasan_check_write+0x14/0x20 [ 426.177769] ? do_raw_spin_lock+0xc1/0x200 [ 426.181999] ? blkdev_get+0xc8/0xb50 [ 426.185705] ? cap_capable+0x1f9/0x260 [ 426.189614] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.195164] ? security_capable+0x99/0xc0 [ 426.199316] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.204847] ? ns_capable_common+0x13f/0x170 [ 426.209248] ? kill_litter_super+0x60/0x60 [ 426.213477] sget+0x10b/0x150 [ 426.216592] ? ns_test_super+0x50/0x50 [ 426.220483] mount_bdev+0x111/0x3e0 [ 426.224109] ? init_once+0x20/0x20 [ 426.227644] squashfs_mount+0x34/0x40 [ 426.231441] mount_fs+0xae/0x31d [ 426.234802] vfs_kern_mount.part.35+0xdc/0x4f0 [ 426.239376] ? may_umount+0xb0/0xb0 [ 426.242996] ? _raw_read_unlock+0x2c/0x50 [ 426.247134] ? __get_fs_type+0x97/0xc0 [ 426.251015] do_mount+0x581/0x31f0 [ 426.254558] ? copy_mount_string+0x40/0x40 [ 426.258806] ? copy_mount_options+0x5f/0x380 [ 426.263276] ? rcu_read_lock_sched_held+0x108/0x120 [ 426.268316] ? kmem_cache_alloc_trace+0x353/0x750 [ 426.273199] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 426.278728] ? _copy_from_user+0xdf/0x150 [ 426.282886] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 426.288434] ? copy_mount_options+0x288/0x380 [ 426.292926] ksys_mount+0x12d/0x140 [ 426.296607] __x64_sys_mount+0xbe/0x150 [ 426.300632] do_syscall_64+0x1b9/0x820 [ 426.304516] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 426.309885] ? syscall_return_slowpath+0x5e0/0x5e0 [ 426.314811] ? trace_hardirqs_on_caller+0x310/0x310 [ 426.319824] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 426.324835] ? recalc_sigpending_tsk+0x180/0x180 [ 426.329584] ? kasan_check_write+0x14/0x20 [ 426.333817] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 426.338656] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 426.343841] RIP: 0033:0x457579 [ 426.347047] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 426.365975] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 426.373715] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 426.380998] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 426.388274] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 426.395564] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 426.395575] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:50 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xfffffffe, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xa000000]}, 0x10) shutdown(r0, 0x1) 19:15:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:50 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x14, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:15:50 executing program 0: utimes(&(0x7f0000000580)='./file0\x00', &(0x7f00000005c0)={{0x77359400}}) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") fstat(r0, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0}) lstat(&(0x7f00000001c0)='./file0\x00', &(0x7f0000000200)={0x0, 0x0, 0x0, 0x0, 0x0}) stat(&(0x7f0000000280)='./file0\x00', &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0}) r4 = syz_open_dev$sndpcmc(&(0x7f00000002c0)='/dev/snd/pcmC#D#c\x00', 0x0, 0x101000) write$P9_RLCREATE(r4, &(0x7f0000000540)={0x18, 0xf, 0x1, {{0x10, 0x4, 0x6}, 0xffffffffffffff00}}, 0x18) mount$9p_rdma(&(0x7f0000000000)='127.0.0.1\x00', &(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='9p\x00', 0x0, &(0x7f0000000440)={'trans=rdma,', {'port', 0x3d, 0x4e24}, 0x2c, {[], [{@appraise='appraise'}, {@fowner_lt={'fowner<', r1}}, {@dont_appraise='dont_appraise'}, {@euid_lt={'euid<', r2}}, {@fsuuid={'fsuuid', 0x3d, {[0x66, 0x34, 0x65, 0x77, 0x0, 0x77, 0x77, 0x65], 0x2d, [0x61, 0x77, 0x35, 0x34], 0x2d, [0x0, 0x63, 0x34, 0x36], 0x2d, [0x61, 0x66, 0x39, 0x77], 0x2d, [0x33, 0x63, 0x37, 0x61, 0x77, 0x36, 0x0, 0x64]}}}, {@fowner_lt={'fowner<', r3}}, {@smackfstransmute={'smackfstransmute', 0x3d, "231a2a2800"}}]}}) 19:15:50 executing program 4 (fault-call:2 fault-nth:17): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 427.470233] FAULT_INJECTION: forcing a failure. [ 427.470233] name failslab, interval 1, probability 0, space 0, times 0 [ 427.506341] CPU: 1 PID: 15224 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 427.513667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 427.523026] Call Trace: [ 427.525644] dump_stack+0x1c4/0x2b4 [ 427.529292] ? dump_stack_print_info.cold.2+0x52/0x52 [ 427.534513] ? __kernel_text_address+0xd/0x40 [ 427.539018] ? unwind_get_return_address+0x61/0xa0 [ 427.543967] should_fail.cold.4+0xa/0x17 [ 427.548046] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 427.553174] ? save_stack+0xa9/0xd0 [ 427.556820] ? graph_lock+0x170/0x170 [ 427.560635] ? save_stack+0x43/0xd0 [ 427.564282] ? kasan_kmalloc+0xc7/0xe0 [ 427.568198] ? kmem_cache_alloc_trace+0x152/0x750 [ 427.573060] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 427.578271] ? __list_lru_init+0x4d6/0x840 [ 427.582533] ? graph_lock+0x170/0x170 [ 427.586352] ? squashfs_mount+0x34/0x40 [ 427.590346] ? mount_fs+0xae/0x31d [ 427.593889] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 427.598630] ? do_mount+0x581/0x31f0 [ 427.602352] ? ksys_mount+0x12d/0x140 [ 427.606142] ? __x64_sys_mount+0xbe/0x150 [ 427.610290] ? do_syscall_64+0x1b9/0x820 [ 427.614378] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 427.619767] ? find_held_lock+0x36/0x1c0 [ 427.623846] ? __lock_is_held+0xb5/0x140 [ 427.627936] ? ___might_sleep+0x1ed/0x300 [ 427.632106] ? arch_local_save_flags+0x40/0x40 [ 427.636718] __should_failslab+0x124/0x180 [ 427.640967] should_failslab+0x9/0x14 [ 427.644790] kmem_cache_alloc_trace+0x2d7/0x750 [ 427.649468] ? __kmalloc_node+0x33/0x70 [ 427.653433] ? __kmalloc_node+0x33/0x70 [ 427.657401] ? rcu_read_lock_sched_held+0x108/0x120 [ 427.662426] __memcg_init_list_lru_node+0x185/0x2d0 [ 427.667436] ? kvfree_rcu+0x20/0x20 [ 427.671058] ? __kmalloc_node+0x47/0x70 [ 427.675035] __list_lru_init+0x4d6/0x840 [ 427.679109] ? list_lru_destroy+0x500/0x500 [ 427.683443] ? up_write+0x7b/0x220 [ 427.686972] ? up_read+0x110/0x110 [ 427.690520] ? down_read+0x1d0/0x1d0 [ 427.694240] ? init_wait_entry+0x1c0/0x1c0 [ 427.698473] ? prealloc_shrinker+0xe5/0x330 [ 427.702821] sget_userns+0x999/0xf10 [ 427.706534] ? kill_litter_super+0x60/0x60 [ 427.710777] ? ns_test_super+0x50/0x50 [ 427.714655] ? destroy_unused_super.part.10+0x110/0x110 [ 427.720029] ? kasan_check_write+0x14/0x20 [ 427.724289] ? do_raw_spin_lock+0xc1/0x200 [ 427.728542] ? blkdev_get+0xc8/0xb50 [ 427.732250] ? cap_capable+0x1f9/0x260 [ 427.736146] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.741689] ? security_capable+0x99/0xc0 [ 427.745838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.751382] ? ns_capable_common+0x13f/0x170 [ 427.755782] ? kill_litter_super+0x60/0x60 [ 427.760026] sget+0x10b/0x150 [ 427.763122] ? ns_test_super+0x50/0x50 [ 427.767012] mount_bdev+0x111/0x3e0 [ 427.770660] ? init_once+0x20/0x20 [ 427.774212] squashfs_mount+0x34/0x40 [ 427.778005] mount_fs+0xae/0x31d [ 427.781367] vfs_kern_mount.part.35+0xdc/0x4f0 [ 427.785944] ? may_umount+0xb0/0xb0 [ 427.789568] ? _raw_read_unlock+0x2c/0x50 [ 427.793724] ? __get_fs_type+0x97/0xc0 [ 427.797619] do_mount+0x581/0x31f0 [ 427.801170] ? copy_mount_string+0x40/0x40 [ 427.805409] ? copy_mount_options+0x5f/0x380 [ 427.809832] ? rcu_read_lock_sched_held+0x108/0x120 [ 427.814905] ? kmem_cache_alloc_trace+0x353/0x750 [ 427.819760] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 427.825321] ? _copy_from_user+0xdf/0x150 [ 427.829482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 427.835006] ? copy_mount_options+0x288/0x380 [ 427.839493] ksys_mount+0x12d/0x140 [ 427.843112] __x64_sys_mount+0xbe/0x150 [ 427.847092] do_syscall_64+0x1b9/0x820 [ 427.850974] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 427.856353] ? syscall_return_slowpath+0x5e0/0x5e0 [ 427.861293] ? trace_hardirqs_on_caller+0x310/0x310 [ 427.866349] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 427.871364] ? recalc_sigpending_tsk+0x180/0x180 [ 427.876111] ? kasan_check_write+0x14/0x20 [ 427.880352] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 427.885192] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 427.890377] RIP: 0033:0x457579 [ 427.893573] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 427.912472] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 19:15:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x11000000]}, 0x10) shutdown(r0, 0x1) [ 427.920173] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 427.927438] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 427.934716] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 427.941981] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 427.949270] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:50 executing program 4 (fault-call:2 fault-nth:18): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 428.002945] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 428.043511] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 428.061152] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x1100]}, 0x10) shutdown(r0, 0x1) [ 428.083965] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 428.102847] FAULT_INJECTION: forcing a failure. [ 428.102847] name failslab, interval 1, probability 0, space 0, times 0 [ 428.131588] CPU: 1 PID: 15243 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 428.139108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 428.148475] Call Trace: [ 428.151097] dump_stack+0x1c4/0x2b4 [ 428.154760] ? dump_stack_print_info.cold.2+0x52/0x52 [ 428.159978] ? __kernel_text_address+0xd/0x40 [ 428.164498] ? unwind_get_return_address+0x61/0xa0 [ 428.169455] should_fail.cold.4+0xa/0x17 [ 428.173542] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 428.178667] ? save_stack+0xa9/0xd0 [ 428.182323] ? graph_lock+0x170/0x170 [ 428.186116] ? save_stack+0x43/0xd0 [ 428.189730] ? kasan_kmalloc+0xc7/0xe0 [ 428.193619] ? kmem_cache_alloc_trace+0x152/0x750 [ 428.198466] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 428.203654] ? __list_lru_init+0x4d6/0x840 [ 428.207903] ? graph_lock+0x170/0x170 [ 428.211724] ? squashfs_mount+0x34/0x40 [ 428.211740] ? mount_fs+0xae/0x31d [ 428.211758] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 428.211772] ? do_mount+0x581/0x31f0 [ 428.211785] ? ksys_mount+0x12d/0x140 [ 428.211798] ? __x64_sys_mount+0xbe/0x150 [ 428.211820] ? do_syscall_64+0x1b9/0x820 [ 428.219345] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 428.219370] ? find_held_lock+0x36/0x1c0 [ 428.219391] ? __lock_is_held+0xb5/0x140 [ 428.219422] ? ___might_sleep+0x1ed/0x300 [ 428.219446] ? arch_local_save_flags+0x40/0x40 [ 428.262643] __should_failslab+0x124/0x180 [ 428.266920] should_failslab+0x9/0x14 [ 428.270743] kmem_cache_alloc_trace+0x2d7/0x750 [ 428.275442] ? __kmalloc_node+0x33/0x70 [ 428.279433] ? __kmalloc_node+0x33/0x70 [ 428.283425] ? rcu_read_lock_sched_held+0x108/0x120 [ 428.288464] __memcg_init_list_lru_node+0x185/0x2d0 [ 428.293495] ? kvfree_rcu+0x20/0x20 [ 428.297189] ? __kmalloc_node+0x47/0x70 [ 428.301229] __list_lru_init+0x4d6/0x840 [ 428.305334] ? list_lru_destroy+0x500/0x500 [ 428.309671] ? up_write+0x7b/0x220 [ 428.313222] ? up_read+0x110/0x110 [ 428.316782] ? down_read+0x1d0/0x1d0 [ 428.320513] ? init_wait_entry+0x1c0/0x1c0 [ 428.324761] ? prealloc_shrinker+0xe5/0x330 [ 428.329126] sget_userns+0x999/0xf10 [ 428.332864] ? kill_litter_super+0x60/0x60 [ 428.337131] ? ns_test_super+0x50/0x50 [ 428.341033] ? destroy_unused_super.part.10+0x110/0x110 [ 428.346432] ? do_raw_spin_lock+0xc1/0x200 [ 428.350696] ? blkdev_get+0xc8/0xb50 [ 428.354419] ? cap_capable+0x1f9/0x260 [ 428.354444] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.354459] ? security_capable+0x99/0xc0 [ 428.354481] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.373588] ? ns_capable_common+0x13f/0x170 [ 428.378017] ? kill_litter_super+0x60/0x60 [ 428.382268] sget+0x10b/0x150 [ 428.385402] ? ns_test_super+0x50/0x50 [ 428.389318] mount_bdev+0x111/0x3e0 [ 428.392965] ? init_once+0x20/0x20 [ 428.396587] squashfs_mount+0x34/0x40 [ 428.396606] mount_fs+0xae/0x31d [ 428.403775] vfs_kern_mount.part.35+0xdc/0x4f0 [ 428.403796] ? may_umount+0xb0/0xb0 [ 428.403812] ? _raw_read_unlock+0x2c/0x50 [ 428.403832] ? __get_fs_type+0x97/0xc0 [ 428.420061] do_mount+0x581/0x31f0 [ 428.423630] ? copy_mount_string+0x40/0x40 [ 428.427888] ? copy_mount_options+0x5f/0x380 [ 428.432325] ? rcu_read_lock_sched_held+0x108/0x120 [ 428.437364] ? kmem_cache_alloc_trace+0x353/0x750 [ 428.442221] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 428.447787] ? _copy_from_user+0xdf/0x150 [ 428.451955] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 428.457508] ? copy_mount_options+0x288/0x380 [ 428.462020] ksys_mount+0x12d/0x140 [ 428.465672] __x64_sys_mount+0xbe/0x150 [ 428.469695] do_syscall_64+0x1b9/0x820 [ 428.473610] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 428.479000] ? syscall_return_slowpath+0x5e0/0x5e0 19:15:50 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = openat$autofs(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/autofs\x00', 0x4000, 0x0) write$P9_RSETATTR(r0, &(0x7f0000000100)={0xfffffffffffffdb7, 0x1b, 0x2}, 0xffffff21) mount(&(0x7f0000000040)=ANY=[@ANYBLOB="00ce92f10000000000000000000008ef7b784a71b6"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r1 = syz_open_dev$audion(&(0x7f0000000180)='/dev/audio#\x00', 0x0, 0x2000) ioctl$TIOCSSOFTCAR(r1, 0x541a, &(0x7f0000000140)=0x8) 19:15:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfe80]}, 0x10) shutdown(r0, 0x1) 19:15:51 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$sock_SIOCGPGRP(0xffffffffffffff9c, 0x8904, &(0x7f0000000000)=0x0) r1 = getpgrp(r0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x2, 0x0, 0xc0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6d295922, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x8}, r1, 0xffffffffffffffff, 0xffffffffffffffff, 0x1) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 428.483973] ? trace_hardirqs_on_caller+0x310/0x310 [ 428.489008] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 428.494061] ? recalc_sigpending_tsk+0x180/0x180 [ 428.498837] ? kasan_check_write+0x14/0x20 [ 428.503102] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 428.507989] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 428.513193] RIP: 0033:0x457579 [ 428.516401] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 428.535320] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 428.535338] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 428.535347] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 428.535355] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 428.535364] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 428.535373] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 428.583103] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 428.610512] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:53 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x6, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:53 executing program 4 (fault-call:2 fault-nth:19): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x5dc]}, 0x10) shutdown(r0, 0x1) 19:15:53 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000000)='net/mcfilter6\x00') ioctl$KVM_GET_SREGS(r0, 0x8138ae83, &(0x7f0000000100)) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r1 = socket$bt_hidp(0x1f, 0x3, 0x6) shutdown(r1, 0x1) 19:15:53 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xfffffffe, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 430.541996] FAULT_INJECTION: forcing a failure. [ 430.541996] name failslab, interval 1, probability 0, space 0, times 0 [ 430.576247] CPU: 1 PID: 15273 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 430.583575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 430.592943] Call Trace: [ 430.595560] dump_stack+0x1c4/0x2b4 [ 430.599218] ? dump_stack_print_info.cold.2+0x52/0x52 [ 430.604432] ? __kernel_text_address+0xd/0x40 [ 430.608953] ? unwind_get_return_address+0x61/0xa0 [ 430.613913] should_fail.cold.4+0xa/0x17 [ 430.618001] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 430.623125] ? save_stack+0xa9/0xd0 [ 430.626768] ? graph_lock+0x170/0x170 [ 430.630582] ? save_stack+0x43/0xd0 [ 430.634221] ? kasan_kmalloc+0xc7/0xe0 [ 430.638124] ? kmem_cache_alloc_trace+0x152/0x750 [ 430.642978] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 430.648179] ? __list_lru_init+0x4d6/0x840 [ 430.652430] ? graph_lock+0x170/0x170 [ 430.656245] ? squashfs_mount+0x34/0x40 [ 430.660231] ? mount_fs+0xae/0x31d [ 430.663788] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 430.668551] ? do_mount+0x581/0x31f0 [ 430.672272] ? ksys_mount+0x12d/0x140 [ 430.676102] ? __x64_sys_mount+0xbe/0x150 [ 430.680270] ? do_syscall_64+0x1b9/0x820 [ 430.684352] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 430.689732] ? find_held_lock+0x36/0x1c0 [ 430.693807] ? __lock_is_held+0xb5/0x140 [ 430.697903] ? ___might_sleep+0x1ed/0x300 [ 430.702080] ? arch_local_save_flags+0x40/0x40 [ 430.706697] __should_failslab+0x124/0x180 [ 430.710957] should_failslab+0x9/0x14 [ 430.714781] kmem_cache_alloc_trace+0x2d7/0x750 [ 430.719471] ? __kmalloc_node+0x33/0x70 [ 430.723464] ? __kmalloc_node+0x33/0x70 [ 430.727455] ? rcu_read_lock_sched_held+0x108/0x120 [ 430.732493] __memcg_init_list_lru_node+0x185/0x2d0 [ 430.737536] ? kvfree_rcu+0x20/0x20 [ 430.741176] ? __kmalloc_node+0x47/0x70 [ 430.745175] __list_lru_init+0x4d6/0x840 [ 430.749257] ? list_lru_destroy+0x500/0x500 [ 430.753603] ? up_write+0x7b/0x220 [ 430.757162] ? up_read+0x110/0x110 [ 430.760723] ? down_read+0x1d0/0x1d0 [ 430.764461] ? init_wait_entry+0x1c0/0x1c0 [ 430.768711] ? prealloc_shrinker+0xe5/0x330 [ 430.773059] sget_userns+0x999/0xf10 [ 430.776796] ? kill_litter_super+0x60/0x60 [ 430.781046] ? ns_test_super+0x50/0x50 [ 430.784954] ? destroy_unused_super.part.10+0x110/0x110 [ 430.790339] ? kasan_check_write+0x14/0x20 [ 430.794587] ? do_raw_spin_lock+0xc1/0x200 [ 430.798842] ? blkdev_get+0xc8/0xb50 [ 430.802577] ? cap_capable+0x1f9/0x260 [ 430.806489] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.812041] ? security_capable+0x99/0xc0 [ 430.816215] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.821763] ? ns_capable_common+0x13f/0x170 [ 430.826186] ? kill_litter_super+0x60/0x60 [ 430.830428] sget+0x10b/0x150 [ 430.833552] ? ns_test_super+0x50/0x50 [ 430.837452] mount_bdev+0x111/0x3e0 [ 430.841096] ? init_once+0x20/0x20 [ 430.844654] squashfs_mount+0x34/0x40 [ 430.848476] mount_fs+0xae/0x31d [ 430.851867] vfs_kern_mount.part.35+0xdc/0x4f0 [ 430.856466] ? may_umount+0xb0/0xb0 [ 430.860106] ? _raw_read_unlock+0x2c/0x50 [ 430.864267] ? __get_fs_type+0x97/0xc0 [ 430.868179] do_mount+0x581/0x31f0 [ 430.871744] ? copy_mount_string+0x40/0x40 [ 430.876003] ? copy_mount_options+0x5f/0x380 [ 430.880424] ? rcu_read_lock_sched_held+0x108/0x120 [ 430.885458] ? kmem_cache_alloc_trace+0x353/0x750 [ 430.890328] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 430.895883] ? _copy_from_user+0xdf/0x150 [ 430.900047] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 430.905612] ? copy_mount_options+0x288/0x380 [ 430.910132] ksys_mount+0x12d/0x140 [ 430.913779] __x64_sys_mount+0xbe/0x150 [ 430.917779] do_syscall_64+0x1b9/0x820 [ 430.921685] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 430.927239] ? syscall_return_slowpath+0x5e0/0x5e0 [ 430.932183] ? trace_hardirqs_on_caller+0x310/0x310 [ 430.937210] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 430.942244] ? recalc_sigpending_tsk+0x180/0x180 [ 430.947013] ? kasan_check_write+0x14/0x20 [ 430.951267] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 430.956137] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 430.961348] RIP: 0033:0x457579 [ 430.964553] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 430.983462] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 430.991187] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 430.998463] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 431.005739] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 431.013023] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 431.020313] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:53 executing program 4 (fault-call:2 fault-nth:20): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 431.047103] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 431.066481] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x4000000000000000]}, 0x10) shutdown(r0, 0x1) [ 431.109564] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 431.133004] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:53 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$EBT_SO_SET_COUNTERS(r0, 0x0, 0x81, &(0x7f00000003c0)={'broute\x00', 0x0, 0x0, 0x0, [], 0x8, &(0x7f00000000c0)=[{}, {}, {}], 0x0, [{}, {}, {}, {}, {}, {}, {}, {}]}, 0xf8) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r1 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f0000000240)=ANY=[@ANYBLOB="2f6465762f2e75766c6230009fb2b58c0bfc24dbe992405d0db31f089bc147c09fdc9fd9a31194fb25f8e8665557f614416cd72998cfd3b5c7cdb492970a6891eac8fa75ea9dc494c67c707329d454d0533ee1bf7f5f690c786aed1a2131dddb"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") ioctl$EXT4_IOC_PRECACHE_EXTENTS(r1, 0x6612) r2 = dup2(r1, r1) lstat(&(0x7f0000000100)='./file0\x00', &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) fstat(r2, &(0x7f00000001c0)) fchown(r2, r3, r4) symlinkat(&(0x7f0000000000)='./file0\x00', r2, &(0x7f0000000040)='./file0\x00') [ 431.163316] FAULT_INJECTION: forcing a failure. [ 431.163316] name failslab, interval 1, probability 0, space 0, times 0 19:15:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 431.205945] CPU: 0 PID: 15287 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 431.213261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 431.222645] Call Trace: [ 431.225274] dump_stack+0x1c4/0x2b4 [ 431.228950] ? dump_stack_print_info.cold.2+0x52/0x52 [ 431.234174] ? __kernel_text_address+0xd/0x40 [ 431.238698] ? unwind_get_return_address+0x61/0xa0 [ 431.243655] should_fail.cold.4+0xa/0x17 [ 431.247747] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 431.252868] ? save_stack+0xa9/0xd0 [ 431.252886] ? graph_lock+0x170/0x170 [ 431.252898] ? save_stack+0x43/0xd0 [ 431.252910] ? kasan_kmalloc+0xc7/0xe0 [ 431.252926] ? kmem_cache_alloc_trace+0x152/0x750 [ 431.252943] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 431.252957] ? __list_lru_init+0x4d6/0x840 [ 431.252976] ? graph_lock+0x170/0x170 [ 431.260407] ? squashfs_mount+0x34/0x40 [ 431.260424] ? mount_fs+0xae/0x31d [ 431.260442] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 431.260455] ? do_mount+0x581/0x31f0 [ 431.260468] ? ksys_mount+0x12d/0x140 [ 431.260482] ? __x64_sys_mount+0xbe/0x150 [ 431.260499] ? do_syscall_64+0x1b9/0x820 [ 431.260521] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 431.310435] kernel msg: ebtables bug: please report to author: Wrong nr of counters [ 431.314028] ? find_held_lock+0x36/0x1c0 [ 431.314051] ? __lock_is_held+0xb5/0x140 [ 431.314083] ? ___might_sleep+0x1ed/0x300 [ 431.314104] ? arch_local_save_flags+0x40/0x40 [ 431.314135] __should_failslab+0x124/0x180 [ 431.314153] should_failslab+0x9/0x14 [ 431.314170] kmem_cache_alloc_trace+0x2d7/0x750 [ 431.314185] ? __kmalloc_node+0x33/0x70 [ 431.314201] ? __kmalloc_node+0x33/0x70 [ 431.314224] ? rcu_read_lock_sched_held+0x108/0x120 [ 431.314248] __memcg_init_list_lru_node+0x185/0x2d0 [ 431.334868] kernel msg: ebtables bug: please report to author: Wrong nr of counters [ 431.335751] ? kvfree_rcu+0x20/0x20 [ 431.335772] ? __kmalloc_node+0x47/0x70 [ 431.335798] __list_lru_init+0x4d6/0x840 [ 431.335819] ? list_lru_destroy+0x500/0x500 [ 431.335839] ? up_write+0x7b/0x220 [ 431.402521] ? up_read+0x110/0x110 19:15:54 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x6000000]}, 0x10) shutdown(r0, 0x1) [ 431.406083] ? down_read+0x1d0/0x1d0 [ 431.409806] ? init_wait_entry+0x1c0/0x1c0 [ 431.414038] ? prealloc_shrinker+0xe5/0x330 [ 431.418376] sget_userns+0x999/0xf10 [ 431.422097] ? kill_litter_super+0x60/0x60 [ 431.426341] ? ns_test_super+0x50/0x50 [ 431.430229] ? destroy_unused_super.part.10+0x110/0x110 [ 431.435623] ? kasan_check_write+0x14/0x20 [ 431.439881] ? do_raw_spin_lock+0xc1/0x200 [ 431.444137] ? blkdev_get+0xc8/0xb50 [ 431.447869] ? cap_capable+0x1f9/0x260 [ 431.451786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.457345] ? security_capable+0x99/0xc0 [ 431.461492] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.467025] ? ns_capable_common+0x13f/0x170 [ 431.471424] ? kill_litter_super+0x60/0x60 [ 431.475647] sget+0x10b/0x150 [ 431.478756] ? ns_test_super+0x50/0x50 [ 431.482665] mount_bdev+0x111/0x3e0 [ 431.486294] ? init_once+0x20/0x20 [ 431.489835] squashfs_mount+0x34/0x40 [ 431.493627] mount_fs+0xae/0x31d [ 431.496990] vfs_kern_mount.part.35+0xdc/0x4f0 [ 431.501564] ? may_umount+0xb0/0xb0 [ 431.505193] ? _raw_read_unlock+0x2c/0x50 [ 431.509337] ? __get_fs_type+0x97/0xc0 [ 431.513221] do_mount+0x581/0x31f0 [ 431.516753] ? trace_hardirqs_off+0x310/0x310 [ 431.521239] ? retint_kernel+0x1b/0x2d [ 431.525121] ? copy_mount_string+0x40/0x40 [ 431.529349] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 431.534105] ? retint_kernel+0x2d/0x2d [ 431.538004] ? copy_mount_options+0x1f3/0x380 [ 431.542510] ? copy_mount_options+0x205/0x380 [ 431.547007] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 431.552556] ? copy_mount_options+0x288/0x380 [ 431.557062] ksys_mount+0x12d/0x140 [ 431.560682] __x64_sys_mount+0xbe/0x150 [ 431.564652] do_syscall_64+0x1b9/0x820 [ 431.568547] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 431.573929] ? syscall_return_slowpath+0x5e0/0x5e0 [ 431.578870] ? trace_hardirqs_on_caller+0x310/0x310 [ 431.583881] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 431.588908] ? recalc_sigpending_tsk+0x180/0x180 [ 431.593675] ? kasan_check_write+0x14/0x20 [ 431.597922] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 431.602778] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 431.607963] RIP: 0033:0x457579 [ 431.611162] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 431.630050] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 431.637749] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 431.645006] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 19:15:54 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="2f6465762fdb2d6c6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 431.652265] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 431.659535] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 431.666790] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 431.684491] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:56 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f6", 0x0, &(0x7f0000000380)="231a2a2800") 19:15:56 executing program 4 (fault-call:2 fault-nth:21): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:56 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB='/\x00\x00\x00'], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:56 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xd, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xa00]}, 0x10) shutdown(r0, 0x1) 19:15:56 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xb, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 433.599978] FAULT_INJECTION: forcing a failure. [ 433.599978] name failslab, interval 1, probability 0, space 0, times 0 [ 433.643052] CPU: 0 PID: 15321 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 433.650374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 433.659736] Call Trace: [ 433.662356] dump_stack+0x1c4/0x2b4 [ 433.666002] ? dump_stack_print_info.cold.2+0x52/0x52 [ 433.671209] ? __kernel_text_address+0xd/0x40 [ 433.675717] ? unwind_get_return_address+0x61/0xa0 [ 433.680666] should_fail.cold.4+0xa/0x17 [ 433.684744] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 433.689858] ? save_stack+0xa9/0xd0 [ 433.693498] ? graph_lock+0x170/0x170 [ 433.697316] ? save_stack+0x43/0xd0 [ 433.700950] ? kasan_kmalloc+0xc7/0xe0 [ 433.704857] ? kmem_cache_alloc_trace+0x152/0x750 [ 433.709711] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 433.714917] ? __list_lru_init+0x4d6/0x840 [ 433.719160] ? graph_lock+0x170/0x170 [ 433.722975] ? squashfs_mount+0x34/0x40 [ 433.726957] ? mount_fs+0xae/0x31d [ 433.730505] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 433.735273] ? do_mount+0x581/0x31f0 [ 433.739010] ? ksys_mount+0x12d/0x140 [ 433.742820] ? __x64_sys_mount+0xbe/0x150 [ 433.746984] ? do_syscall_64+0x1b9/0x820 [ 433.751060] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 433.757138] ? find_held_lock+0x36/0x1c0 [ 433.761223] ? __lock_is_held+0xb5/0x140 [ 433.765329] ? ___might_sleep+0x1ed/0x300 [ 433.769499] ? arch_local_save_flags+0x40/0x40 [ 433.774114] __should_failslab+0x124/0x180 [ 433.778366] should_failslab+0x9/0x14 [ 433.782183] kmem_cache_alloc_trace+0x2d7/0x750 [ 433.786861] ? __kmalloc_node+0x33/0x70 19:15:56 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 433.790843] ? __kmalloc_node+0x33/0x70 [ 433.794830] ? rcu_read_lock_sched_held+0x108/0x120 [ 433.799868] __memcg_init_list_lru_node+0x185/0x2d0 [ 433.804898] ? kvfree_rcu+0x20/0x20 [ 433.808535] ? __kmalloc_node+0x47/0x70 [ 433.812542] __list_lru_init+0x4d6/0x840 [ 433.816631] ? list_lru_destroy+0x500/0x500 [ 433.820963] ? up_write+0x7b/0x220 [ 433.820978] ? up_read+0x110/0x110 [ 433.820996] ? down_read+0x1d0/0x1d0 [ 433.821020] ? init_wait_entry+0x1c0/0x1c0 [ 433.836025] ? prealloc_shrinker+0xe5/0x330 [ 433.840373] sget_userns+0x999/0xf10 19:15:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x500]}, 0x10) shutdown(r0, 0x1) [ 433.844103] ? kill_litter_super+0x60/0x60 [ 433.848359] ? ns_test_super+0x50/0x50 [ 433.852264] ? destroy_unused_super.part.10+0x110/0x110 [ 433.857654] ? kasan_check_write+0x14/0x20 [ 433.857673] ? do_raw_spin_lock+0xc1/0x200 [ 433.857697] ? blkdev_get+0xc8/0xb50 [ 433.857716] ? cap_capable+0x1f9/0x260 [ 433.866199] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.879324] ? security_capable+0x99/0xc0 [ 433.883497] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.889046] ? ns_capable_common+0x13f/0x170 [ 433.893498] ? kill_litter_super+0x60/0x60 [ 433.897750] sget+0x10b/0x150 [ 433.900870] ? ns_test_super+0x50/0x50 [ 433.904776] mount_bdev+0x111/0x3e0 [ 433.908423] ? init_once+0x20/0x20 [ 433.911987] squashfs_mount+0x34/0x40 [ 433.915801] mount_fs+0xae/0x31d [ 433.919201] vfs_kern_mount.part.35+0xdc/0x4f0 [ 433.923814] ? may_umount+0xb0/0xb0 [ 433.927455] ? _raw_read_unlock+0x2c/0x50 [ 433.931617] ? __get_fs_type+0x97/0xc0 [ 433.935522] do_mount+0x581/0x31f0 [ 433.939083] ? copy_mount_string+0x40/0x40 [ 433.943362] ? copy_mount_options+0x5f/0x380 [ 433.947790] ? rcu_read_lock_sched_held+0x108/0x120 [ 433.952823] ? kmem_cache_alloc_trace+0x353/0x750 [ 433.957688] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 433.963233] ? _copy_from_user+0xdf/0x150 [ 433.967373] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 433.972910] ? copy_mount_options+0x288/0x380 [ 433.977406] ksys_mount+0x12d/0x140 [ 433.981022] __x64_sys_mount+0xbe/0x150 [ 433.985002] do_syscall_64+0x1b9/0x820 [ 433.988915] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe 19:15:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x3f00]}, 0x10) shutdown(r0, 0x1) [ 433.994267] ? syscall_return_slowpath+0x5e0/0x5e0 [ 433.999193] ? trace_hardirqs_on_caller+0x310/0x310 [ 434.004220] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 434.009246] ? recalc_sigpending_tsk+0x180/0x180 [ 434.014013] ? kasan_check_write+0x14/0x20 [ 434.018295] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.023173] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 434.028378] RIP: 0033:0x457579 19:15:56 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f0000000000)=ANY=[@ANYBLOB="6d7e230850cded369e6a0000706db0bedcefc992c30acbd552813a5072229deefa4e2276aa30902bdb0dbe2bcbc0d9cff9bb5f69c37d56a4c3c0"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r0 = dup(0xffffffffffffff9c) ioctl$EVIOCGABS2F(r0, 0x8018456f, &(0x7f0000000100)=""/76) r1 = socket$rds(0x15, 0x5, 0x0) getsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000040), &(0x7f00000000c0)=0x4) getsockopt$inet_sctp_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x73, &(0x7f0000000180)={0x0, 0x5, 0x10, 0x3ff, 0x9}, &(0x7f00000001c0)=0x18) setsockopt$inet_sctp6_SCTP_DEFAULT_PRINFO(r0, 0x84, 0x72, &(0x7f0000000200)={r2, 0x6c6, 0x10}, 0xc) 19:15:56 executing program 4 (fault-call:2 fault-nth:22): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 434.031585] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 434.050487] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 434.050506] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 434.050515] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 434.050525] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 434.050534] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 434.050543] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 434.118423] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 434.156070] FAULT_INJECTION: forcing a failure. [ 434.156070] name failslab, interval 1, probability 0, space 0, times 0 [ 434.185393] CPU: 0 PID: 15346 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 434.192700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 434.202058] Call Trace: [ 434.204665] dump_stack+0x1c4/0x2b4 [ 434.208344] ? dump_stack_print_info.cold.2+0x52/0x52 [ 434.213556] ? __kernel_text_address+0xd/0x40 [ 434.218085] ? unwind_get_return_address+0x61/0xa0 [ 434.223038] should_fail.cold.4+0xa/0x17 [ 434.227126] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 434.232241] ? save_stack+0xa9/0xd0 [ 434.235901] ? graph_lock+0x170/0x170 [ 434.239714] ? save_stack+0x43/0xd0 [ 434.243566] ? kasan_kmalloc+0xc7/0xe0 [ 434.247477] ? kmem_cache_alloc_trace+0x152/0x750 [ 434.252318] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 434.257494] ? __list_lru_init+0x4d6/0x840 [ 434.261714] ? graph_lock+0x170/0x170 [ 434.265500] ? squashfs_mount+0x34/0x40 [ 434.269467] ? mount_fs+0xae/0x31d [ 434.272991] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 434.277727] ? do_mount+0x581/0x31f0 [ 434.281423] ? ksys_mount+0x12d/0x140 [ 434.285206] ? __x64_sys_mount+0xbe/0x150 [ 434.289340] ? do_syscall_64+0x1b9/0x820 [ 434.293386] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 434.298748] ? find_held_lock+0x36/0x1c0 [ 434.302796] ? __lock_is_held+0xb5/0x140 [ 434.306849] ? ___might_sleep+0x1ed/0x300 [ 434.310980] ? arch_local_save_flags+0x40/0x40 [ 434.315566] __should_failslab+0x124/0x180 [ 434.319790] should_failslab+0x9/0x14 [ 434.323583] kmem_cache_alloc_trace+0x2d7/0x750 [ 434.328234] ? __kmalloc_node+0x33/0x70 [ 434.332201] __memcg_init_list_lru_node+0x185/0x2d0 [ 434.337200] ? kvfree_rcu+0x20/0x20 [ 434.340822] ? __kmalloc_node+0x47/0x70 [ 434.344788] __list_lru_init+0x4d6/0x840 [ 434.348833] ? list_lru_destroy+0x500/0x500 [ 434.353148] ? up_write+0x7b/0x220 [ 434.356672] ? up_read+0x110/0x110 [ 434.360192] ? down_read+0x1d0/0x1d0 [ 434.363893] ? init_wait_entry+0x1c0/0x1c0 [ 434.368111] ? prealloc_shrinker+0xe5/0x330 [ 434.372448] sget_userns+0x999/0xf10 [ 434.376149] ? kill_litter_super+0x60/0x60 [ 434.380366] ? ns_test_super+0x50/0x50 [ 434.384239] ? destroy_unused_super.part.10+0x110/0x110 [ 434.389589] ? kasan_check_write+0x14/0x20 [ 434.393810] ? do_raw_spin_lock+0xc1/0x200 [ 434.398031] ? blkdev_get+0xc8/0xb50 [ 434.401744] ? cap_capable+0x1f9/0x260 [ 434.405632] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.411150] ? security_capable+0x99/0xc0 [ 434.415284] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.420811] ? ns_capable_common+0x13f/0x170 [ 434.425207] ? kill_litter_super+0x60/0x60 [ 434.429441] sget+0x10b/0x150 [ 434.432530] ? ns_test_super+0x50/0x50 [ 434.436403] mount_bdev+0x111/0x3e0 [ 434.440014] ? init_once+0x20/0x20 [ 434.443544] squashfs_mount+0x34/0x40 [ 434.447334] mount_fs+0xae/0x31d [ 434.450686] vfs_kern_mount.part.35+0xdc/0x4f0 [ 434.455255] ? may_umount+0xb0/0xb0 [ 434.458864] ? _raw_read_unlock+0x2c/0x50 [ 434.462998] ? __get_fs_type+0x97/0xc0 [ 434.466871] do_mount+0x581/0x31f0 [ 434.470399] ? trace_hardirqs_off+0x310/0x310 [ 434.474879] ? retint_kernel+0x1b/0x2d [ 434.478753] ? copy_mount_string+0x40/0x40 [ 434.482976] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 434.487718] ? retint_kernel+0x2d/0x2d [ 434.491608] ? copy_mount_options+0x1f3/0x380 [ 434.496092] ? copy_mount_options+0x1ff/0x380 [ 434.500575] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 434.506109] ? copy_mount_options+0x288/0x380 [ 434.510616] ksys_mount+0x12d/0x140 [ 434.514230] __x64_sys_mount+0xbe/0x150 [ 434.518196] do_syscall_64+0x1b9/0x820 [ 434.522082] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 434.527445] ? syscall_return_slowpath+0x5e0/0x5e0 [ 434.532363] ? trace_hardirqs_on_caller+0x310/0x310 [ 434.537364] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 434.542367] ? recalc_sigpending_tsk+0x180/0x180 [ 434.547106] ? kasan_check_write+0x14/0x20 [ 434.551332] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 434.556198] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 434.561374] RIP: 0033:0x457579 [ 434.564554] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 19:15:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x12c]}, 0x10) shutdown(r0, 0x1) 19:15:57 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000000)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") sysfs$1(0x1, &(0x7f0000000040)='wlan1\x00') [ 434.583462] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 434.591153] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 434.598405] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 434.605657] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 434.612909] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 434.620201] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:57 executing program 4 (fault-call:2 fault-nth:23): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 434.635482] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 434.753924] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 434.764330] FAULT_INJECTION: forcing a failure. [ 434.764330] name failslab, interval 1, probability 0, space 0, times 0 [ 434.779767] CPU: 1 PID: 15363 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 434.787061] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 434.796437] Call Trace: [ 434.799035] dump_stack+0x1c4/0x2b4 [ 434.802681] ? dump_stack_print_info.cold.2+0x52/0x52 [ 434.807914] ? __kernel_text_address+0xd/0x40 [ 434.812435] ? unwind_get_return_address+0x61/0xa0 [ 434.817365] should_fail.cold.4+0xa/0x17 [ 434.821434] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 434.826537] ? save_stack+0xa9/0xd0 [ 434.830150] ? graph_lock+0x170/0x170 [ 434.833946] ? save_stack+0x43/0xd0 [ 434.837575] ? kasan_kmalloc+0xc7/0xe0 [ 434.841451] ? kmem_cache_alloc_trace+0x152/0x750 [ 434.846280] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 434.851459] ? __list_lru_init+0x4d6/0x840 [ 434.855681] ? graph_lock+0x170/0x170 [ 434.859479] ? squashfs_mount+0x34/0x40 [ 434.863468] ? mount_fs+0xae/0x31d [ 434.867010] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 434.871763] ? do_mount+0x581/0x31f0 [ 434.875463] ? ksys_mount+0x12d/0x140 [ 434.879250] ? __x64_sys_mount+0xbe/0x150 [ 434.883396] ? do_syscall_64+0x1b9/0x820 [ 434.887463] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 434.892817] ? find_held_lock+0x36/0x1c0 [ 434.896897] ? __lock_is_held+0xb5/0x140 [ 434.900973] ? ___might_sleep+0x1ed/0x300 [ 434.905110] ? arch_local_save_flags+0x40/0x40 [ 434.909700] __should_failslab+0x124/0x180 [ 434.913923] should_failslab+0x9/0x14 [ 434.917712] kmem_cache_alloc_trace+0x2d7/0x750 [ 434.922365] ? __kmalloc_node+0x33/0x70 [ 434.926325] ? __kmalloc_node+0x33/0x70 [ 434.930289] ? rcu_read_lock_sched_held+0x108/0x120 [ 434.935317] __memcg_init_list_lru_node+0x185/0x2d0 [ 434.940334] ? kvfree_rcu+0x20/0x20 [ 434.943963] ? __kmalloc_node+0x47/0x70 [ 434.947940] __list_lru_init+0x4d6/0x840 [ 434.951992] ? list_lru_destroy+0x500/0x500 [ 434.956316] ? up_write+0x7b/0x220 [ 434.959857] ? up_read+0x110/0x110 [ 434.963386] ? down_read+0x1d0/0x1d0 [ 434.967108] ? init_wait_entry+0x1c0/0x1c0 [ 434.971343] ? prealloc_shrinker+0xe5/0x330 [ 434.975691] sget_userns+0x999/0xf10 [ 434.979403] ? kill_litter_super+0x60/0x60 [ 434.983624] ? ns_test_super+0x50/0x50 [ 434.987499] ? destroy_unused_super.part.10+0x110/0x110 [ 434.992857] ? do_raw_spin_lock+0xc1/0x200 [ 434.997087] ? blkdev_get+0xc8/0xb50 [ 435.000791] ? cap_capable+0x1f9/0x260 [ 435.004673] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.010215] ? security_capable+0x99/0xc0 [ 435.014362] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.019905] ? ns_capable_common+0x13f/0x170 [ 435.024315] ? kill_litter_super+0x60/0x60 [ 435.028537] sget+0x10b/0x150 [ 435.031652] ? ns_test_super+0x50/0x50 [ 435.035535] mount_bdev+0x111/0x3e0 [ 435.039149] ? init_once+0x20/0x20 [ 435.042679] squashfs_mount+0x34/0x40 [ 435.046471] mount_fs+0xae/0x31d [ 435.049848] vfs_kern_mount.part.35+0xdc/0x4f0 [ 435.054445] ? may_umount+0xb0/0xb0 [ 435.058075] ? _raw_read_unlock+0x2c/0x50 [ 435.062223] ? __get_fs_type+0x97/0xc0 [ 435.066128] do_mount+0x581/0x31f0 [ 435.069654] ? trace_hardirqs_on+0x310/0x310 [ 435.074054] ? copy_mount_string+0x40/0x40 [ 435.078287] ? retint_kernel+0x2d/0x2d [ 435.082165] ? copy_mount_options+0x214/0x380 [ 435.086646] ? write_comp_data+0x1/0x70 [ 435.090622] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 435.096151] ? copy_mount_options+0x288/0x380 [ 435.100659] ksys_mount+0x12d/0x140 [ 435.104274] __x64_sys_mount+0xbe/0x150 [ 435.108242] do_syscall_64+0x1b9/0x820 [ 435.112141] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 435.117509] ? syscall_return_slowpath+0x5e0/0x5e0 [ 435.122431] ? trace_hardirqs_on_caller+0x310/0x310 [ 435.127456] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 435.132501] ? recalc_sigpending_tsk+0x180/0x180 [ 435.137258] ? kasan_check_write+0x14/0x20 [ 435.141483] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 435.146341] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 435.151521] RIP: 0033:0x457579 [ 435.154713] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 435.173598] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 435.181292] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 435.188551] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 435.195808] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 435.203078] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 435.210356] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 435.222644] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 435.269441] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 435.302096] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:59 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xb, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:15:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x3]}, 0x10) shutdown(r0, 0x1) 19:15:59 executing program 4 (fault-call:2 fault-nth:24): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:59 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="2f6465099d6e756c6c623200"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:59 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xd, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 436.688677] FAULT_INJECTION: forcing a failure. [ 436.688677] name failslab, interval 1, probability 0, space 0, times 0 [ 436.728660] CPU: 1 PID: 15385 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 436.735987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 436.745348] Call Trace: [ 436.747957] dump_stack+0x1c4/0x2b4 [ 436.751605] ? dump_stack_print_info.cold.2+0x52/0x52 [ 436.756820] ? __kernel_text_address+0xd/0x40 [ 436.761332] ? unwind_get_return_address+0x61/0xa0 [ 436.766282] should_fail.cold.4+0xa/0x17 [ 436.770365] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 436.775488] ? save_stack+0xa9/0xd0 [ 436.779134] ? graph_lock+0x170/0x170 [ 436.782947] ? save_stack+0x43/0xd0 [ 436.786580] ? kasan_kmalloc+0xc7/0xe0 [ 436.790479] ? kmem_cache_alloc_trace+0x152/0x750 [ 436.795352] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 436.800545] ? __list_lru_init+0x4d6/0x840 [ 436.804786] ? graph_lock+0x170/0x170 [ 436.808593] ? squashfs_mount+0x34/0x40 [ 436.812573] ? mount_fs+0xae/0x31d [ 436.816120] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 436.820876] ? do_mount+0x581/0x31f0 [ 436.824595] ? ksys_mount+0x12d/0x140 [ 436.828397] ? __x64_sys_mount+0xbe/0x150 [ 436.832559] ? do_syscall_64+0x1b9/0x820 [ 436.836623] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 436.841999] ? find_held_lock+0x36/0x1c0 [ 436.846082] ? __lock_is_held+0xb5/0x140 [ 436.850195] ? ___might_sleep+0x1ed/0x300 [ 436.854354] ? arch_local_save_flags+0x40/0x40 [ 436.858959] __should_failslab+0x124/0x180 [ 436.863209] should_failslab+0x9/0x14 [ 436.867016] kmem_cache_alloc_trace+0x2d7/0x750 [ 436.871691] ? __kmalloc_node+0x33/0x70 [ 436.875675] ? __kmalloc_node+0x33/0x70 [ 436.879661] ? rcu_read_lock_sched_held+0x108/0x120 [ 436.884695] __memcg_init_list_lru_node+0x185/0x2d0 [ 436.889721] ? kvfree_rcu+0x20/0x20 [ 436.893359] ? __kmalloc_node+0x47/0x70 [ 436.897349] __list_lru_init+0x4d6/0x840 [ 436.901426] ? list_lru_destroy+0x500/0x500 [ 436.905757] ? up_write+0x7b/0x220 [ 436.909315] ? up_read+0x110/0x110 [ 436.912870] ? down_read+0x1d0/0x1d0 [ 436.916596] ? init_wait_entry+0x1c0/0x1c0 [ 436.920864] ? prealloc_shrinker+0xe5/0x330 [ 436.925210] sget_userns+0x999/0xf10 [ 436.928925] ? kill_litter_super+0x60/0x60 [ 436.933171] ? ns_test_super+0x50/0x50 [ 436.937080] ? destroy_unused_super.part.10+0x110/0x110 [ 436.942458] ? kasan_check_write+0x14/0x20 [ 436.946702] ? do_raw_spin_lock+0xc1/0x200 [ 436.950951] ? blkdev_get+0xc8/0xb50 [ 436.954676] ? cap_capable+0x1f9/0x260 [ 436.958583] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.964129] ? security_capable+0x99/0xc0 [ 436.968287] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 436.973831] ? ns_capable_common+0x13f/0x170 [ 436.978248] ? kill_litter_super+0x60/0x60 [ 436.982486] sget+0x10b/0x150 [ 436.985597] ? ns_test_super+0x50/0x50 [ 436.989498] mount_bdev+0x111/0x3e0 [ 436.993133] ? init_once+0x20/0x20 [ 436.996686] squashfs_mount+0x34/0x40 [ 437.000494] mount_fs+0xae/0x31d [ 437.003882] vfs_kern_mount.part.35+0xdc/0x4f0 [ 437.008489] ? may_umount+0xb0/0xb0 [ 437.012153] ? _raw_read_unlock+0x2c/0x50 [ 437.016316] ? __get_fs_type+0x97/0xc0 [ 437.020222] do_mount+0x581/0x31f0 [ 437.023779] ? copy_mount_string+0x40/0x40 [ 437.028034] ? copy_mount_options+0x5f/0x380 [ 437.032455] ? rcu_read_lock_sched_held+0x108/0x120 [ 437.037487] ? kmem_cache_alloc_trace+0x353/0x750 [ 437.042340] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.047885] ? _copy_from_user+0xdf/0x150 [ 437.052048] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.057612] ? copy_mount_options+0x288/0x380 [ 437.062121] ksys_mount+0x12d/0x140 [ 437.065764] __x64_sys_mount+0xbe/0x150 [ 437.069751] do_syscall_64+0x1b9/0x820 [ 437.073646] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 437.079021] ? syscall_return_slowpath+0x5e0/0x5e0 [ 437.083961] ? trace_hardirqs_on_caller+0x310/0x310 [ 437.088985] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 437.094007] ? recalc_sigpending_tsk+0x180/0x180 [ 437.098770] ? kasan_check_write+0x14/0x20 [ 437.103023] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 437.107882] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 437.113084] RIP: 0033:0x457579 [ 437.116284] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 19:15:59 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 437.135197] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 437.142922] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 437.150200] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 437.157474] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 437.164748] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 437.172019] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:15:59 executing program 4 (fault-call:2 fault-nth:25): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:15:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfffffffe]}, 0x10) shutdown(r0, 0x1) [ 437.197753] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 437.236293] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 437.253625] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:15:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 437.302611] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 437.336309] FAULT_INJECTION: forcing a failure. [ 437.336309] name failslab, interval 1, probability 0, space 0, times 0 [ 437.362810] CPU: 1 PID: 15402 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 437.370120] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 437.379488] Call Trace: [ 437.382116] dump_stack+0x1c4/0x2b4 [ 437.385771] ? dump_stack_print_info.cold.2+0x52/0x52 [ 437.390986] ? __kernel_text_address+0xd/0x40 [ 437.395507] ? unwind_get_return_address+0x61/0xa0 [ 437.400469] should_fail.cold.4+0xa/0x17 [ 437.404547] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 437.409674] ? save_stack+0xa9/0xd0 19:16:00 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = syz_open_dev$audion(&(0x7f0000000140)='/dev/audio#\x00', 0x4, 0x20000) ioctl$TCSETSW(r0, 0x5403, &(0x7f0000000180)={0x6, 0x91, 0x7, 0x0, 0x39e2379f, 0x1000000000000000, 0x4, 0x9, 0x0, 0x8, 0x3, 0x7}) openat$kvm(0xffffffffffffff9c, &(0x7f0000000000)='/dev/kvm\x00', 0x80000, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x5, 0x3) r1 = memfd_create(&(0x7f0000000040)='\x00', 0x3) write$P9_RUNLINKAT(r1, &(0x7f0000000100)={0x7, 0x4d, 0x2}, 0x7) mount(&(0x7f0000000280)=ANY=[@ANYBLOB="2f64657693ed47416c623000e6dbe2e1e49f80847847bb33b5522e11edf9d2b5fceacbf83b5d5c26ab734520"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r2 = shmget$private(0x0, 0x2000, 0x18, &(0x7f0000ffc000/0x2000)=nil) setsockopt$inet6_IPV6_ADDRFORM(r0, 0x29, 0x1, &(0x7f00000001c0), 0x4) shmctl$IPC_INFO(r2, 0x3, &(0x7f0000000200)=""/82) [ 437.413313] ? graph_lock+0x170/0x170 [ 437.417135] ? save_stack+0x43/0xd0 [ 437.420778] ? kasan_kmalloc+0xc7/0xe0 [ 437.424678] ? kmem_cache_alloc_trace+0x152/0x750 [ 437.429530] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 437.429549] ? __list_lru_init+0x4d6/0x840 [ 437.438987] ? graph_lock+0x170/0x170 [ 437.442806] ? squashfs_mount+0x34/0x40 [ 437.446788] ? mount_fs+0xae/0x31d [ 437.450335] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 437.455103] ? do_mount+0x581/0x31f0 [ 437.458819] ? ksys_mount+0x12d/0x140 19:16:00 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x500000000000000]}, 0x10) shutdown(r0, 0x1) [ 437.458833] ? __x64_sys_mount+0xbe/0x150 [ 437.458850] ? do_syscall_64+0x1b9/0x820 [ 437.458867] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 437.458890] ? find_held_lock+0x36/0x1c0 [ 437.458928] ? __lock_is_held+0xb5/0x140 [ 437.484403] ? ___might_sleep+0x1ed/0x300 [ 437.488570] ? arch_local_save_flags+0x40/0x40 [ 437.493176] __should_failslab+0x124/0x180 [ 437.493195] should_failslab+0x9/0x14 [ 437.493214] kmem_cache_alloc_trace+0x2d7/0x750 [ 437.493230] ? __kmalloc_node+0x33/0x70 [ 437.493259] __memcg_init_list_lru_node+0x185/0x2d0 [ 437.493278] ? kvfree_rcu+0x20/0x20 [ 437.493298] ? __kmalloc_node+0x47/0x70 [ 437.501347] __list_lru_init+0x4d6/0x840 [ 437.501370] ? list_lru_destroy+0x500/0x500 [ 437.501390] ? up_write+0x7b/0x220 [ 437.501405] ? up_read+0x110/0x110 [ 437.501422] ? down_read+0x1d0/0x1d0 [ 437.501441] ? init_wait_entry+0x1c0/0x1c0 [ 437.501461] ? prealloc_shrinker+0xe5/0x330 [ 437.550407] sget_userns+0x999/0xf10 [ 437.554138] ? kill_litter_super+0x60/0x60 [ 437.558410] ? ns_test_super+0x50/0x50 [ 437.562338] ? destroy_unused_super.part.10+0x110/0x110 [ 437.567738] ? kasan_check_write+0x14/0x20 [ 437.571995] ? do_raw_spin_lock+0xc1/0x200 [ 437.576249] ? blkdev_get+0xc8/0xb50 [ 437.579988] ? cap_capable+0x1f9/0x260 [ 437.583894] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.589449] ? security_capable+0x99/0xc0 [ 437.593624] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.599198] ? ns_capable_common+0x13f/0x170 [ 437.603661] ? kill_litter_super+0x60/0x60 [ 437.607911] sget+0x10b/0x150 [ 437.611042] ? ns_test_super+0x50/0x50 [ 437.614985] mount_bdev+0x111/0x3e0 [ 437.618625] ? init_once+0x20/0x20 [ 437.622182] squashfs_mount+0x34/0x40 [ 437.625985] mount_fs+0xae/0x31d [ 437.629362] vfs_kern_mount.part.35+0xdc/0x4f0 [ 437.633968] ? may_umount+0xb0/0xb0 [ 437.637610] ? _raw_read_unlock+0x2c/0x50 [ 437.641779] ? __get_fs_type+0x97/0xc0 [ 437.645684] do_mount+0x581/0x31f0 [ 437.649245] ? copy_mount_string+0x40/0x40 [ 437.653500] ? copy_mount_options+0x5f/0x380 [ 437.657921] ? rcu_read_lock_sched_held+0x108/0x120 [ 437.662946] ? kmem_cache_alloc_trace+0x353/0x750 [ 437.662967] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 437.662990] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 437.663004] ? copy_mount_options+0x288/0x380 [ 437.663024] ksys_mount+0x12d/0x140 [ 437.687048] __x64_sys_mount+0xbe/0x150 [ 437.691050] do_syscall_64+0x1b9/0x820 [ 437.694950] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 437.700305] ? syscall_return_slowpath+0x5e0/0x5e0 [ 437.705249] ? trace_hardirqs_on_caller+0x310/0x310 [ 437.710288] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 437.715341] ? recalc_sigpending_tsk+0x180/0x180 [ 437.720119] ? kasan_check_write+0x14/0x20 [ 437.724384] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 437.729250] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 437.734448] RIP: 0033:0x457579 [ 437.737657] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 437.756572] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 437.764303] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 437.771655] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 437.778982] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 437.786271] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 437.793558] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 437.811482] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 437.872763] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:02 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d07}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x300000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:02 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/zero\x00', 0x400000, 0x0) bind$vsock_dgram(r0, &(0x7f0000000200)={0x28, 0x0, 0xffffffff, @reserved}, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) lremovexattr(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040)=@random={'system.', 'vmnet1\x00'}) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = openat$rtc(0xffffffffffffff9c, &(0x7f0000000100)='/dev/rtc0\x00', 0x40, 0x0) ioctl$DRM_IOCTL_AGP_ALLOC(0xffffffffffffff9c, 0xc0206434, &(0x7f0000000140)={0x0, 0x0, 0x10001, 0x9}) ioctl$DRM_IOCTL_AGP_ALLOC(r1, 0xc0206434, &(0x7f0000000180)={0x2, r2, 0x1, 0x101}) setsockopt$inet_sctp_SCTP_FRAGMENT_INTERLEAVE(r0, 0x84, 0x12, &(0x7f00000002c0)=0xffffffff, 0x4) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:02 executing program 4 (fault-call:2 fault-nth:26): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:02 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs%', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:02 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x8, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 439.722655] FAULT_INJECTION: forcing a failure. [ 439.722655] name failslab, interval 1, probability 0, space 0, times 0 [ 439.775726] CPU: 1 PID: 15430 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 439.783084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 439.792462] Call Trace: [ 439.795112] dump_stack+0x1c4/0x2b4 [ 439.798809] ? dump_stack_print_info.cold.2+0x52/0x52 [ 439.804030] ? graph_lock+0x170/0x170 [ 439.807878] ? __mutex_lock+0x85e/0x1700 [ 439.811982] should_fail.cold.4+0xa/0x17 [ 439.816086] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 439.821212] ? graph_lock+0x170/0x170 [ 439.825019] ? graph_lock+0x170/0x170 [ 439.828832] ? graph_lock+0x170/0x170 [ 439.832651] ? lock_downgrade+0x900/0x900 [ 439.836819] ? find_held_lock+0x36/0x1c0 [ 439.840924] ? __lock_is_held+0xb5/0x140 [ 439.845051] ? ___might_sleep+0x1ed/0x300 [ 439.849219] ? arch_local_save_flags+0x40/0x40 [ 439.853840] __should_failslab+0x124/0x180 [ 439.858120] should_failslab+0x9/0x14 [ 439.861962] __kmalloc+0x2d4/0x760 [ 439.865542] ? kvfree_rcu+0x20/0x20 [ 439.869181] ? __list_lru_init+0x151/0x840 [ 439.873454] __list_lru_init+0x151/0x840 [ 439.877537] ? list_lru_destroy+0x500/0x500 [ 439.881875] ? up_write+0x7b/0x220 [ 439.885442] ? down_read+0x1d0/0x1d0 [ 439.889184] ? init_wait_entry+0x1c0/0x1c0 [ 439.893428] ? prealloc_shrinker+0xe5/0x330 [ 439.897775] sget_userns+0x9c9/0xf10 [ 439.901498] ? kill_litter_super+0x60/0x60 [ 439.905765] ? ns_test_super+0x50/0x50 [ 439.909686] ? destroy_unused_super.part.10+0x110/0x110 [ 439.915069] ? kasan_check_write+0x14/0x20 [ 439.919505] ? do_raw_spin_lock+0xc1/0x200 [ 439.923763] ? blkdev_get+0xc8/0xb50 [ 439.927500] ? cap_capable+0x1f9/0x260 [ 439.931405] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.936961] ? security_capable+0x99/0xc0 [ 439.941116] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 439.946655] ? ns_capable_common+0x13f/0x170 [ 439.951085] ? kill_litter_super+0x60/0x60 [ 439.955332] sget+0x10b/0x150 [ 439.958616] ? ns_test_super+0x50/0x50 [ 439.963205] mount_bdev+0x111/0x3e0 [ 439.967541] ? init_once+0x20/0x20 [ 439.971103] squashfs_mount+0x34/0x40 [ 439.974908] mount_fs+0xae/0x31d [ 439.978283] vfs_kern_mount.part.35+0xdc/0x4f0 [ 439.982877] ? may_umount+0xb0/0xb0 [ 439.986509] ? _raw_read_unlock+0x2c/0x50 [ 439.990658] ? __get_fs_type+0x97/0xc0 [ 439.994568] do_mount+0x581/0x31f0 [ 439.998114] ? retint_kernel+0x1b/0x2d [ 440.002025] ? trace_hardirqs_on+0x310/0x310 [ 440.006441] ? copy_mount_string+0x40/0x40 [ 440.010682] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 440.015447] ? retint_kernel+0x2d/0x2d [ 440.019396] ? __sanitizer_cov_trace_const_cmp4+0x20/0x20 [ 440.024934] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.030477] ? copy_mount_options+0x288/0x380 [ 440.034992] ksys_mount+0x12d/0x140 [ 440.038625] __x64_sys_mount+0xbe/0x150 [ 440.042612] do_syscall_64+0x1b9/0x820 [ 440.046505] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 440.051874] ? syscall_return_slowpath+0x5e0/0x5e0 [ 440.056808] ? trace_hardirqs_on_caller+0x310/0x310 [ 440.061837] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 440.066869] ? recalc_sigpending_tsk+0x180/0x180 [ 440.071629] ? kasan_check_write+0x14/0x20 [ 440.075887] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 440.080738] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 440.085925] RIP: 0033:0x457579 [ 440.089120] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 440.108028] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 440.115737] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 440.123010] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 440.130277] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 440.137877] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 440.145148] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:02 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667306", 0x0, &(0x7f0000000380)="231a2a2800") 19:16:02 executing program 4 (fault-call:2 fault-nth:27): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2]}, 0x10) shutdown(r0, 0x1) [ 440.187972] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 440.273797] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 440.321743] FAULT_INJECTION: forcing a failure. [ 440.321743] name failslab, interval 1, probability 0, space 0, times 0 [ 440.338695] CPU: 1 PID: 15458 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 440.346008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 440.355374] Call Trace: [ 440.357954] dump_stack+0x1c4/0x2b4 [ 440.361574] ? dump_stack_print_info.cold.2+0x52/0x52 [ 440.366759] ? __kernel_text_address+0xd/0x40 [ 440.371242] ? unwind_get_return_address+0x61/0xa0 [ 440.376161] should_fail.cold.4+0xa/0x17 [ 440.380224] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 440.385340] ? save_stack+0xa9/0xd0 [ 440.388956] ? graph_lock+0x170/0x170 [ 440.392768] ? save_stack+0x43/0xd0 [ 440.396390] ? kasan_kmalloc+0xc7/0xe0 [ 440.400263] ? kmem_cache_alloc_trace+0x152/0x750 [ 440.405098] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 440.410273] ? __list_lru_init+0x4d6/0x840 [ 440.414504] ? graph_lock+0x170/0x170 [ 440.418330] ? squashfs_mount+0x34/0x40 [ 440.422337] ? mount_fs+0xae/0x31d [ 440.425881] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 440.430619] ? do_mount+0x581/0x31f0 [ 440.434335] ? ksys_mount+0x12d/0x140 [ 440.438121] ? __x64_sys_mount+0xbe/0x150 [ 440.442253] ? do_syscall_64+0x1b9/0x820 [ 440.446322] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 440.451678] ? find_held_lock+0x36/0x1c0 [ 440.455729] ? __lock_is_held+0xb5/0x140 [ 440.459785] ? ___might_sleep+0x1ed/0x300 [ 440.463953] ? arch_local_save_flags+0x40/0x40 [ 440.468565] __should_failslab+0x124/0x180 [ 440.472804] should_failslab+0x9/0x14 [ 440.476597] kmem_cache_alloc_trace+0x2d7/0x750 [ 440.481275] ? __kmalloc_node+0x33/0x70 [ 440.485273] ? __kmalloc_node+0x33/0x70 [ 440.489259] ? rcu_read_lock_sched_held+0x108/0x120 [ 440.494280] __memcg_init_list_lru_node+0x185/0x2d0 [ 440.499291] ? kvfree_rcu+0x20/0x20 [ 440.502951] ? __kmalloc_node+0x47/0x70 [ 440.506921] __list_lru_init+0x4d6/0x840 [ 440.510988] ? list_lru_destroy+0x500/0x500 [ 440.515322] ? up_write+0x7b/0x220 [ 440.518863] ? up_read+0x110/0x110 [ 440.522390] ? down_read+0x1d0/0x1d0 [ 440.526095] ? init_wait_entry+0x1c0/0x1c0 [ 440.530324] ? prealloc_shrinker+0xe5/0x330 [ 440.534637] sget_userns+0x999/0xf10 [ 440.538339] ? kill_litter_super+0x60/0x60 [ 440.542587] ? ns_test_super+0x50/0x50 [ 440.546473] ? destroy_unused_super.part.10+0x110/0x110 [ 440.552375] ? kasan_check_write+0x14/0x20 [ 440.556638] ? do_raw_spin_lock+0xc1/0x200 [ 440.560866] ? blkdev_get+0xc8/0xb50 [ 440.564580] ? cap_capable+0x1f9/0x260 [ 440.568470] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.573995] ? security_capable+0x99/0xc0 [ 440.578143] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.583680] ? ns_capable_common+0x13f/0x170 [ 440.588084] ? kill_litter_super+0x60/0x60 [ 440.592337] sget+0x10b/0x150 [ 440.595432] ? ns_test_super+0x50/0x50 [ 440.599305] mount_bdev+0x111/0x3e0 [ 440.602953] ? init_once+0x20/0x20 [ 440.606485] squashfs_mount+0x34/0x40 [ 440.610270] mount_fs+0xae/0x31d [ 440.613632] vfs_kern_mount.part.35+0xdc/0x4f0 [ 440.618206] ? may_umount+0xb0/0xb0 [ 440.621840] ? _raw_read_unlock+0x2c/0x50 [ 440.625983] ? __get_fs_type+0x97/0xc0 [ 440.629861] do_mount+0x581/0x31f0 [ 440.633392] ? copy_mount_string+0x40/0x40 [ 440.637619] ? copy_mount_options+0x5f/0x380 [ 440.642018] ? rcu_read_lock_sched_held+0x108/0x120 [ 440.647038] ? kmem_cache_alloc_trace+0x353/0x750 [ 440.651872] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 440.657400] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 440.662922] ? copy_mount_options+0x288/0x380 [ 440.667407] ksys_mount+0x12d/0x140 [ 440.671053] __x64_sys_mount+0xbe/0x150 [ 440.675050] do_syscall_64+0x1b9/0x820 [ 440.678929] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 440.684804] ? syscall_return_slowpath+0x5e0/0x5e0 [ 440.689724] ? trace_hardirqs_on_caller+0x310/0x310 [ 440.694729] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 440.699733] ? recalc_sigpending_tsk+0x180/0x180 [ 440.704477] ? kasan_check_write+0x14/0x20 [ 440.708705] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 440.713538] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 440.718715] RIP: 0033:0x457579 [ 440.721895] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 440.740961] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 440.749197] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 440.756452] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 440.763716] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 19:16:03 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="2f73b287155b0870698d6e55"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:03 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs*', 0x0, &(0x7f0000000380)="231a2a2800") [ 440.770988] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 440.778266] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x4000]}, 0x10) shutdown(r0, 0x1) 19:16:05 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0a}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667319", 0x0, &(0x7f0000000380)="231a2a2800") 19:16:05 executing program 4 (fault-call:2 fault-nth:28): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfec00000]}, 0x10) shutdown(r0, 0x1) 19:16:05 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="2f644dcef717a9fe65762e6e"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r1 = syz_open_dev$dspn(&(0x7f00000002c0)='/dev/dsp#\x00', 0x4, 0x240480) setsockopt$inet6_buf(r1, 0x29, 0x32, &(0x7f0000000440)="7f8491856aa97b8df99c6997cee142e4e6ae1c87f5c22e4e112bb19095f8007e7354c923e54b49534f89ec4c3b62a3b023b9c5dcc070d2e09cdb3ceb170a14dfc4d2ae15820173603c3f330630cf55ec5057cd01e742616a97f764ad97b65591521ca064b0240fcd28278e9cda32ae91efe95fba1ac54e98a274599f1c80a895f658013f04cefd74d2eed8b0d8b73a44742922c3c87cd17799b1cda738d8c45b480c4355a2ddca4bf9f552ea60856f6a09e8336b40189886e6c28c798e86aa32e495fe335170fa2545cc4a12c87421344d92fb5c6b00000000000000000000000000", 0xe2) openat$ppp(0xffffffffffffff9c, &(0x7f0000000280)='/dev/ppp\x00', 0x40, 0x0) ioctl$SG_GET_NUM_WAITING(r0, 0x227d, &(0x7f0000000400)) creat(&(0x7f0000000000)='./file0\x00', 0x2) lsetxattr$trusted_overlay_nlink(&(0x7f0000000040)='./file0\x00', &(0x7f0000000100)='trusted.overlay.nlink\x00', &(0x7f0000000140)={'U+', 0x8000}, 0x28, 0x2) 19:16:05 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x10, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 442.800866] FAULT_INJECTION: forcing a failure. [ 442.800866] name failslab, interval 1, probability 0, space 0, times 0 [ 442.863776] CPU: 0 PID: 15489 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 442.871886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 442.881249] Call Trace: [ 442.883853] dump_stack+0x1c4/0x2b4 [ 442.887505] ? dump_stack_print_info.cold.2+0x52/0x52 [ 442.892707] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 442.897998] should_fail.cold.4+0xa/0x17 [ 442.902069] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 442.907179] ? kernel_text_address+0x79/0xf0 [ 442.912301] ? __kernel_text_address+0xd/0x40 [ 442.917597] ? graph_lock+0x170/0x170 [ 442.922198] ? __save_stack_trace+0x8d/0xf0 [ 442.927831] ? graph_lock+0x170/0x170 [ 442.932350] ? find_held_lock+0x36/0x1c0 [ 442.937027] ? __lock_is_held+0xb5/0x140 [ 442.941987] ? ___might_sleep+0x1ed/0x300 [ 442.947048] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 442.953205] ? arch_local_save_flags+0x40/0x40 [ 442.957816] __should_failslab+0x124/0x180 [ 442.962064] should_failslab+0x9/0x14 [ 442.965868] kmem_cache_alloc_trace+0x2d7/0x750 [ 442.970540] ? __kmalloc_node+0x33/0x70 [ 442.974520] ? __kmalloc_node+0x33/0x70 [ 442.978502] ? rcu_read_lock_sched_held+0x108/0x120 [ 442.983530] __memcg_init_list_lru_node+0x185/0x2d0 [ 442.988568] ? kvfree_rcu+0x20/0x20 [ 442.992217] ? __kmalloc_node+0x47/0x70 [ 442.996219] __list_lru_init+0x4d6/0x840 [ 443.000288] ? list_lru_destroy+0x500/0x500 [ 443.004626] ? up_write+0x7b/0x220 [ 443.008171] ? down_read+0x1d0/0x1d0 [ 443.011889] ? init_wait_entry+0x1c0/0x1c0 [ 443.016124] ? prealloc_shrinker+0xe5/0x330 [ 443.020461] sget_userns+0x9c9/0xf10 [ 443.024178] ? kill_litter_super+0x60/0x60 [ 443.028417] ? ns_test_super+0x50/0x50 [ 443.032307] ? destroy_unused_super.part.10+0x110/0x110 [ 443.037685] ? kasan_check_write+0x14/0x20 [ 443.041925] ? do_raw_spin_lock+0xc1/0x200 [ 443.046179] ? blkdev_get+0xc8/0xb50 [ 443.049901] ? cap_capable+0x1f9/0x260 [ 443.053801] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.059347] ? security_capable+0x99/0xc0 [ 443.063501] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.069038] ? ns_capable_common+0x13f/0x170 [ 443.073455] ? kill_litter_super+0x60/0x60 [ 443.077693] sget+0x10b/0x150 [ 443.080913] ? ns_test_super+0x50/0x50 [ 443.084810] mount_bdev+0x111/0x3e0 [ 443.088456] ? init_once+0x20/0x20 [ 443.092004] squashfs_mount+0x34/0x40 [ 443.095809] mount_fs+0xae/0x31d [ 443.099192] vfs_kern_mount.part.35+0xdc/0x4f0 [ 443.103777] ? may_umount+0xb0/0xb0 [ 443.107756] ? _raw_read_unlock+0x2c/0x50 [ 443.112079] ? __get_fs_type+0x97/0xc0 [ 443.115976] do_mount+0x581/0x31f0 [ 443.119522] ? copy_mount_string+0x40/0x40 [ 443.123774] ? copy_mount_options+0x5f/0x380 [ 443.128187] ? rcu_read_lock_sched_held+0x108/0x120 [ 443.133364] ? kmem_cache_alloc_trace+0x353/0x750 [ 443.138218] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 443.143759] ? _copy_from_user+0xdf/0x150 [ 443.147919] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.153461] ? copy_mount_options+0x288/0x380 [ 443.157992] ksys_mount+0x12d/0x140 [ 443.161625] __x64_sys_mount+0xbe/0x150 [ 443.165612] do_syscall_64+0x1b9/0x820 [ 443.169499] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 443.174877] ? syscall_return_slowpath+0x5e0/0x5e0 [ 443.179819] ? trace_hardirqs_on_caller+0x310/0x310 [ 443.184843] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 443.189863] ? recalc_sigpending_tsk+0x180/0x180 [ 443.194625] ? kasan_check_write+0x14/0x20 [ 443.198885] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.203744] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 443.208948] RIP: 0033:0x457579 [ 443.212149] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 443.231341] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 443.239102] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 443.246378] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 443.253649] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 19:16:05 executing program 0: mkdir(&(0x7f0000000000)='./file0\x00', 0x0) mkdir(&(0x7f0000000140)='./file0/file0\x00', 0x16) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=ANY=[@ANYBLOB="23600000000000000009a700"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x34000]}, 0x10) shutdown(r0, 0x1) [ 443.260918] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 443.268190] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:06 executing program 4 (fault-call:2 fault-nth:29): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:06 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f0000000000)='/dev/vga_arbiter\x00', 0x400000, 0x0) r1 = ioctl$LOOP_CTL_GET_FREE(0xffffffffffffff9c, 0x4c82) ioctl$LOOP_CTL_REMOVE(r0, 0x4c81, r1) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:06 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x400300]}, 0x10) shutdown(r0, 0x1) [ 443.457471] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 443.480340] FAULT_INJECTION: forcing a failure. [ 443.480340] name failslab, interval 1, probability 0, space 0, times 0 [ 443.514279] CPU: 1 PID: 15511 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 443.521612] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 443.530985] Call Trace: [ 443.533597] dump_stack+0x1c4/0x2b4 [ 443.537250] ? dump_stack_print_info.cold.2+0x52/0x52 [ 443.542456] ? __kernel_text_address+0xd/0x40 [ 443.546967] ? unwind_get_return_address+0x61/0xa0 [ 443.551918] should_fail.cold.4+0xa/0x17 [ 443.555996] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 443.561124] ? save_stack+0xa9/0xd0 [ 443.564772] ? graph_lock+0x170/0x170 [ 443.568583] ? save_stack+0x43/0xd0 [ 443.572220] ? kasan_kmalloc+0xc7/0xe0 [ 443.576119] ? kmem_cache_alloc_trace+0x152/0x750 [ 443.581014] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 443.586210] ? __list_lru_init+0x4d6/0x840 [ 443.590458] ? graph_lock+0x170/0x170 [ 443.594272] ? squashfs_mount+0x34/0x40 [ 443.598253] ? mount_fs+0xae/0x31d [ 443.601803] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 443.606568] ? do_mount+0x581/0x31f0 [ 443.610295] ? ksys_mount+0x12d/0x140 [ 443.614138] ? __x64_sys_mount+0xbe/0x150 [ 443.618306] ? do_syscall_64+0x1b9/0x820 [ 443.622393] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 443.627782] ? find_held_lock+0x36/0x1c0 [ 443.631858] ? __lock_is_held+0xb5/0x140 [ 443.635951] ? ___might_sleep+0x1ed/0x300 [ 443.640120] ? arch_local_save_flags+0x40/0x40 [ 443.645089] __should_failslab+0x124/0x180 [ 443.650126] should_failslab+0x9/0x14 [ 443.654639] kmem_cache_alloc_trace+0x2d7/0x750 [ 443.659330] ? __kmalloc_node+0x33/0x70 [ 443.663334] ? __kmalloc_node+0x33/0x70 [ 443.667334] ? rcu_read_lock_sched_held+0x108/0x120 [ 443.672372] __memcg_init_list_lru_node+0x185/0x2d0 [ 443.677405] ? kvfree_rcu+0x20/0x20 [ 443.681044] ? __kmalloc_node+0x47/0x70 [ 443.685112] __list_lru_init+0x4d6/0x840 [ 443.689211] ? list_lru_destroy+0x500/0x500 [ 443.693549] ? up_write+0x7b/0x220 [ 443.697121] ? down_read+0x1d0/0x1d0 [ 443.700847] ? init_wait_entry+0x1c0/0x1c0 [ 443.705101] ? prealloc_shrinker+0xe5/0x330 [ 443.709460] sget_userns+0x9c9/0xf10 [ 443.713195] ? kill_litter_super+0x60/0x60 [ 443.717443] ? ns_test_super+0x50/0x50 [ 443.721352] ? destroy_unused_super.part.10+0x110/0x110 [ 443.726913] ? do_raw_spin_lock+0xc1/0x200 [ 443.732014] ? blkdev_get+0xc8/0xb50 [ 443.736548] ? cap_capable+0x1f9/0x260 [ 443.740479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.746045] ? security_capable+0x99/0xc0 [ 443.750209] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.755752] ? ns_capable_common+0x13f/0x170 [ 443.760173] ? kill_litter_super+0x60/0x60 [ 443.764418] sget+0x10b/0x150 [ 443.767534] ? ns_test_super+0x50/0x50 [ 443.771444] mount_bdev+0x111/0x3e0 [ 443.775092] ? init_once+0x20/0x20 [ 443.778659] squashfs_mount+0x34/0x40 [ 443.782469] mount_fs+0xae/0x31d [ 443.785859] vfs_kern_mount.part.35+0xdc/0x4f0 [ 443.790722] ? may_umount+0xb0/0xb0 [ 443.795087] ? _raw_read_unlock+0x2c/0x50 [ 443.800032] ? __get_fs_type+0x97/0xc0 [ 443.804369] do_mount+0x581/0x31f0 [ 443.807924] ? copy_mount_string+0x40/0x40 [ 443.812184] ? copy_mount_options+0x5f/0x380 [ 443.816602] ? rcu_read_lock_sched_held+0x108/0x120 [ 443.821639] ? kmem_cache_alloc_trace+0x353/0x750 [ 443.826511] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 443.832058] ? _copy_from_user+0xdf/0x150 [ 443.836229] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 443.841777] ? copy_mount_options+0x288/0x380 [ 443.846292] ksys_mount+0x12d/0x140 [ 443.849942] __x64_sys_mount+0xbe/0x150 [ 443.853941] do_syscall_64+0x1b9/0x820 [ 443.857839] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 443.863219] ? syscall_return_slowpath+0x5e0/0x5e0 [ 443.868165] ? trace_hardirqs_on_caller+0x310/0x310 [ 443.873196] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 443.878223] ? recalc_sigpending_tsk+0x180/0x180 [ 443.882991] ? kasan_check_write+0x14/0x20 [ 443.887244] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 443.892133] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 443.897332] RIP: 0033:0x457579 [ 443.900535] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 443.919450] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 443.927173] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 443.935761] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 443.943210] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 443.950489] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 443.957762] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 443.989150] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 444.017761] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 444.056537] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:08 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0f}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:08 executing program 4 (fault-call:2 fault-nth:30): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:08 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) chroot(&(0x7f0000000000)='./file0\x00') perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:08 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x5000000]}, 0x10) shutdown(r0, 0x1) [ 445.812598] FAULT_INJECTION: forcing a failure. [ 445.812598] name failslab, interval 1, probability 0, space 0, times 0 [ 445.837122] CPU: 0 PID: 15530 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 445.844454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 445.844463] Call Trace: [ 445.844489] dump_stack+0x1c4/0x2b4 [ 445.844512] ? dump_stack_print_info.cold.2+0x52/0x52 [ 445.844535] ? __kernel_text_address+0xd/0x40 [ 445.870097] ? unwind_get_return_address+0x61/0xa0 [ 445.875673] should_fail.cold.4+0xa/0x17 [ 445.879750] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 445.879771] ? save_stack+0xa9/0xd0 [ 445.879791] ? graph_lock+0x170/0x170 [ 445.892329] ? save_stack+0x43/0xd0 [ 445.895967] ? kasan_kmalloc+0xc7/0xe0 [ 445.900068] ? kmem_cache_alloc_trace+0x152/0x750 [ 445.905443] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 445.910644] ? __list_lru_init+0x4d6/0x840 [ 445.914893] ? graph_lock+0x170/0x170 [ 445.918704] ? squashfs_mount+0x34/0x40 [ 445.918723] ? mount_fs+0xae/0x31d [ 445.926242] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 445.931033] ? do_mount+0x581/0x31f0 [ 445.934755] ? ksys_mount+0x12d/0x140 [ 445.938589] ? __x64_sys_mount+0xbe/0x150 [ 445.942759] ? do_syscall_64+0x1b9/0x820 [ 445.946837] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 445.952215] ? find_held_lock+0x36/0x1c0 [ 445.956294] ? __lock_is_held+0xb5/0x140 [ 445.960396] ? ___might_sleep+0x1ed/0x300 [ 445.964560] ? arch_local_save_flags+0x40/0x40 [ 445.969194] __should_failslab+0x124/0x180 [ 445.973437] should_failslab+0x9/0x14 [ 445.977277] kmem_cache_alloc_trace+0x2d7/0x750 [ 445.981961] ? __kmalloc_node+0x33/0x70 [ 445.985984] ? __kmalloc_node+0x33/0x70 [ 445.989967] ? rcu_read_lock_sched_held+0x108/0x120 [ 445.995000] __memcg_init_list_lru_node+0x185/0x2d0 [ 446.000052] ? kvfree_rcu+0x20/0x20 [ 446.003694] ? __kmalloc_node+0x47/0x70 [ 446.007688] __list_lru_init+0x4d6/0x840 [ 446.011765] ? list_lru_destroy+0x500/0x500 [ 446.016095] ? up_write+0x7b/0x220 [ 446.019651] ? down_read+0x1d0/0x1d0 [ 446.023382] ? init_wait_entry+0x1c0/0x1c0 [ 446.027632] ? prealloc_shrinker+0xe5/0x330 [ 446.031979] sget_userns+0x9c9/0xf10 [ 446.035705] ? kill_litter_super+0x60/0x60 [ 446.039954] ? ns_test_super+0x50/0x50 [ 446.043851] ? destroy_unused_super.part.10+0x110/0x110 [ 446.049238] ? kasan_check_write+0x14/0x20 [ 446.053492] ? do_raw_spin_lock+0xc1/0x200 [ 446.057741] ? blkdev_get+0xc8/0xb50 [ 446.061490] ? cap_capable+0x1f9/0x260 [ 446.065388] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.070970] ? security_capable+0x99/0xc0 [ 446.075130] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.081104] ? ns_capable_common+0x13f/0x170 [ 446.085956] ? kill_litter_super+0x60/0x60 [ 446.090224] sget+0x10b/0x150 [ 446.093357] ? ns_test_super+0x50/0x50 [ 446.097265] mount_bdev+0x111/0x3e0 [ 446.100913] ? init_once+0x20/0x20 [ 446.104479] squashfs_mount+0x34/0x40 [ 446.108300] mount_fs+0xae/0x31d 19:16:08 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x4, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:08 executing program 0: mkdir(&(0x7f0000000000)='./file0\x00', 0x2) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 446.111714] vfs_kern_mount.part.35+0xdc/0x4f0 [ 446.116362] ? may_umount+0xb0/0xb0 [ 446.120018] ? _raw_read_unlock+0x2c/0x50 [ 446.124184] ? __get_fs_type+0x97/0xc0 [ 446.128088] do_mount+0x581/0x31f0 [ 446.131653] ? copy_mount_string+0x40/0x40 [ 446.135900] ? copy_mount_options+0x5f/0x380 [ 446.140298] ? rcu_read_lock_sched_held+0x108/0x120 [ 446.145322] ? kmem_cache_alloc_trace+0x353/0x750 [ 446.150168] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.155704] ? copy_mount_options+0x288/0x380 [ 446.160218] ksys_mount+0x12d/0x140 [ 446.163871] __x64_sys_mount+0xbe/0x150 [ 446.167864] do_syscall_64+0x1b9/0x820 [ 446.171745] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 446.177102] ? syscall_return_slowpath+0x5e0/0x5e0 [ 446.182027] ? trace_hardirqs_on_caller+0x310/0x310 [ 446.188039] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 446.193683] ? recalc_sigpending_tsk+0x180/0x180 [ 446.198471] ? kasan_check_write+0x14/0x20 [ 446.202706] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.207550] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 446.212744] RIP: 0033:0x457579 [ 446.215943] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 446.234888] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 446.242954] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 446.250221] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 446.257497] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 446.264755] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 446.272010] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 446.289971] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 446.304799] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:08 executing program 4 (fault-call:2 fault-nth:31): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:09 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xdc05]}, 0x10) shutdown(r0, 0x1) [ 446.336173] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 446.372814] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:09 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:09 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$amidi(&(0x7f0000002a80)='/dev/amidi#\x00', 0x3, 0x189141) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000002ac0)=@req3={0x80000001, 0x8, 0x1, 0x5, 0x7f, 0x7fffffff, 0x1}, 0x1c) mount(&(0x7f00000000c0)=@sr0='/dev/sr0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 446.416716] FAULT_INJECTION: forcing a failure. [ 446.416716] name failslab, interval 1, probability 0, space 0, times 0 [ 446.428628] CPU: 0 PID: 15551 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 446.435922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 446.445291] Call Trace: [ 446.447916] dump_stack+0x1c4/0x2b4 [ 446.451603] ? dump_stack_print_info.cold.2+0x52/0x52 [ 446.456816] ? __kernel_text_address+0xd/0x40 [ 446.456835] ? unwind_get_return_address+0x61/0xa0 [ 446.456859] should_fail.cold.4+0xa/0x17 [ 446.456881] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 446.456901] ? save_stack+0xa9/0xd0 [ 446.479116] ? graph_lock+0x170/0x170 [ 446.482926] ? save_stack+0x43/0xd0 [ 446.482940] ? kasan_kmalloc+0xc7/0xe0 [ 446.482957] ? kmem_cache_alloc_trace+0x152/0x750 [ 446.482974] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 446.482988] ? __list_lru_init+0x4d6/0x840 [ 446.483004] ? graph_lock+0x170/0x170 [ 446.483019] ? squashfs_mount+0x34/0x40 [ 446.483040] ? mount_fs+0xae/0x31d [ 446.495407] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 446.495420] ? do_mount+0x581/0x31f0 [ 446.495432] ? ksys_mount+0x12d/0x140 [ 446.495458] ? __x64_sys_mount+0xbe/0x150 [ 446.495474] ? do_syscall_64+0x1b9/0x820 [ 446.495491] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 446.495512] ? find_held_lock+0x36/0x1c0 [ 446.495530] ? __lock_is_held+0xb5/0x140 [ 446.553634] ? ___might_sleep+0x1ed/0x300 [ 446.558510] ? arch_local_save_flags+0x40/0x40 [ 446.563129] __should_failslab+0x124/0x180 19:16:09 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = openat$audio(0xffffffffffffff9c, &(0x7f0000000140)='/dev/audio\x00', 0x0, 0x0) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffff9c, 0x29, 0x23, &(0x7f0000000180)={{{@in6=@dev, @in=@loopback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast1}, 0x0, @in=@rand_addr}}, &(0x7f0000000280)=0xe8) r2 = getgid() write$FUSE_ENTRY(r0, &(0x7f00000003c0)={0x90, 0x0, 0x7, {0x1, 0x0, 0x3, 0x3f, 0x80000000, 0x0, {0x1, 0x401, 0x31, 0x6, 0x9, 0x7, 0x6, 0x50, 0x0, 0xffffffffffffff7f, 0x1, r1, r2, 0x4, 0x6}}}, 0x90) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") lsetxattr$security_ima(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040)='security.ima\x00', &(0x7f0000000100)=@md5={0x1, "a453418895975d71a49060bb2a3b12b5"}, 0x11, 0x1) [ 446.567378] should_failslab+0x9/0x14 [ 446.571197] kmem_cache_alloc_trace+0x2d7/0x750 [ 446.575880] ? __kmalloc_node+0x33/0x70 [ 446.579868] ? __kmalloc_node+0x33/0x70 [ 446.583855] ? rcu_read_lock_sched_held+0x108/0x120 [ 446.589256] __memcg_init_list_lru_node+0x185/0x2d0 [ 446.594640] ? kvfree_rcu+0x20/0x20 [ 446.598286] ? __kmalloc_node+0x47/0x70 [ 446.602305] __list_lru_init+0x4d6/0x840 [ 446.606443] ? list_lru_destroy+0x500/0x500 [ 446.610783] ? up_write+0x7b/0x220 [ 446.614365] ? down_read+0x1d0/0x1d0 [ 446.618096] ? init_wait_entry+0x1c0/0x1c0 [ 446.622370] ? prealloc_shrinker+0xe5/0x330 [ 446.626768] sget_userns+0x9c9/0xf10 [ 446.630501] ? kill_litter_super+0x60/0x60 [ 446.634764] ? ns_test_super+0x50/0x50 [ 446.638674] ? destroy_unused_super.part.10+0x110/0x110 [ 446.644059] ? kasan_check_write+0x14/0x20 [ 446.648328] ? do_raw_spin_lock+0xc1/0x200 [ 446.652593] ? blkdev_get+0xc8/0xb50 [ 446.656348] ? cap_capable+0x1f9/0x260 [ 446.660276] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.665865] ? security_capable+0x99/0xc0 [ 446.670036] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.675599] ? ns_capable_common+0x13f/0x170 [ 446.680031] ? kill_litter_super+0x60/0x60 [ 446.684281] sget+0x10b/0x150 [ 446.687410] ? ns_test_super+0x50/0x50 [ 446.691336] mount_bdev+0x111/0x3e0 [ 446.694983] ? init_once+0x20/0x20 [ 446.698543] squashfs_mount+0x34/0x40 [ 446.702373] mount_fs+0xae/0x31d [ 446.705764] vfs_kern_mount.part.35+0xdc/0x4f0 [ 446.710374] ? may_umount+0xb0/0xb0 [ 446.714054] ? _raw_read_unlock+0x2c/0x50 [ 446.718212] ? __get_fs_type+0x97/0xc0 [ 446.722120] do_mount+0x581/0x31f0 [ 446.725720] ? copy_mount_string+0x40/0x40 [ 446.729963] ? copy_mount_options+0x5f/0x380 [ 446.734369] ? rcu_read_lock_sched_held+0x108/0x120 [ 446.739390] ? kmem_cache_alloc_trace+0x353/0x750 [ 446.744242] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 446.749792] ? _copy_from_user+0xdf/0x150 [ 446.753948] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 446.759496] ? copy_mount_options+0x288/0x380 [ 446.764020] ksys_mount+0x12d/0x140 [ 446.767674] __x64_sys_mount+0xbe/0x150 [ 446.771670] do_syscall_64+0x1b9/0x820 [ 446.775575] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 446.780961] ? syscall_return_slowpath+0x5e0/0x5e0 [ 446.785905] ? trace_hardirqs_on_caller+0x310/0x310 [ 446.790931] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 446.796737] ? recalc_sigpending_tsk+0x180/0x180 [ 446.801692] ? kasan_check_write+0x14/0x20 [ 446.805952] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 446.810815] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 446.816008] RIP: 0033:0x457579 [ 446.816025] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 446.816034] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 446.816052] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 446.816062] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 446.816076] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 446.869344] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 446.876867] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 446.914966] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 446.941147] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 446.967181] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 446.975623] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:11 executing program 4 (fault-call:2 fault-nth:32): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:11 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x300]}, 0x10) shutdown(r0, 0x1) 19:16:11 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f0000000100)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000000)="231a58b7b62a32db575627a2ecb76947b73411850341ac1ad0460e747ad04b0695168b3f06516e3d452c99acfb54bbb828aa399b99c57af3b190dea92b697a853c60689e168014656797b72d5b983b2c") 19:16:11 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000300}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:11 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") [ 448.900458] FAULT_INJECTION: forcing a failure. [ 448.900458] name failslab, interval 1, probability 0, space 0, times 0 [ 448.927376] CPU: 0 PID: 15572 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 448.934688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 448.944054] Call Trace: [ 448.946690] dump_stack+0x1c4/0x2b4 [ 448.950348] ? dump_stack_print_info.cold.2+0x52/0x52 [ 448.955555] ? __kernel_text_address+0xd/0x40 [ 448.960073] ? unwind_get_return_address+0x61/0xa0 [ 448.965026] should_fail.cold.4+0xa/0x17 [ 448.969110] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 448.974232] ? save_stack+0xa9/0xd0 [ 448.977875] ? graph_lock+0x170/0x170 [ 448.981691] ? save_stack+0x43/0xd0 [ 448.985338] ? kasan_kmalloc+0xc7/0xe0 [ 448.989253] ? kmem_cache_alloc_trace+0x152/0x750 [ 448.994123] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 448.999356] ? __list_lru_init+0x4d6/0x840 [ 449.003632] ? graph_lock+0x170/0x170 [ 449.007458] ? squashfs_mount+0x34/0x40 [ 449.011443] ? mount_fs+0xae/0x31d [ 449.014988] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 449.019752] ? do_mount+0x581/0x31f0 [ 449.023473] ? ksys_mount+0x12d/0x140 [ 449.027287] ? __x64_sys_mount+0xbe/0x150 [ 449.031456] ? do_syscall_64+0x1b9/0x820 [ 449.035532] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 449.040922] ? find_held_lock+0x36/0x1c0 [ 449.044998] ? __lock_is_held+0xb5/0x140 [ 449.045029] ? ___might_sleep+0x1ed/0x300 [ 449.045049] ? arch_local_save_flags+0x40/0x40 [ 449.045079] __should_failslab+0x124/0x180 [ 449.045097] should_failslab+0x9/0x14 [ 449.045118] kmem_cache_alloc_trace+0x2d7/0x750 [ 449.053366] ? __kmalloc_node+0x33/0x70 [ 449.053382] ? __kmalloc_node+0x33/0x70 [ 449.053401] ? rcu_read_lock_sched_held+0x108/0x120 [ 449.053438] __memcg_init_list_lru_node+0x185/0x2d0 [ 449.053457] ? kvfree_rcu+0x20/0x20 [ 449.053474] ? __kmalloc_node+0x47/0x70 [ 449.053496] __list_lru_init+0x4d6/0x840 [ 449.053516] ? list_lru_destroy+0x500/0x500 [ 449.053535] ? up_write+0x7b/0x220 [ 449.108222] ? down_read+0x1d0/0x1d0 [ 449.111943] ? init_wait_entry+0x1c0/0x1c0 [ 449.116164] ? prealloc_shrinker+0xe5/0x330 [ 449.120520] sget_userns+0x9c9/0xf10 [ 449.124223] ? kill_litter_super+0x60/0x60 [ 449.128451] ? ns_test_super+0x50/0x50 [ 449.132351] ? destroy_unused_super.part.10+0x110/0x110 [ 449.137711] ? kasan_check_write+0x14/0x20 [ 449.141935] ? do_raw_spin_lock+0xc1/0x200 [ 449.146166] ? blkdev_get+0xc8/0xb50 [ 449.149889] ? cap_capable+0x1f9/0x260 [ 449.153768] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.159307] ? security_capable+0x99/0xc0 [ 449.163486] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.169036] ? ns_capable_common+0x13f/0x170 [ 449.173461] ? kill_litter_super+0x60/0x60 [ 449.177699] sget+0x10b/0x150 [ 449.180794] ? ns_test_super+0x50/0x50 [ 449.184671] mount_bdev+0x111/0x3e0 [ 449.188302] ? init_once+0x20/0x20 [ 449.191859] squashfs_mount+0x34/0x40 [ 449.195660] mount_fs+0xae/0x31d [ 449.199050] vfs_kern_mount.part.35+0xdc/0x4f0 [ 449.203637] ? may_umount+0xb0/0xb0 [ 449.207253] ? _raw_read_unlock+0x2c/0x50 [ 449.211396] ? __get_fs_type+0x97/0xc0 [ 449.215289] do_mount+0x581/0x31f0 [ 449.218830] ? copy_mount_string+0x40/0x40 [ 449.223069] ? copy_mount_options+0x5f/0x380 [ 449.227468] ? rcu_read_lock_sched_held+0x108/0x120 [ 449.232483] ? kmem_cache_alloc_trace+0x353/0x750 [ 449.237339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 449.242881] ? _copy_from_user+0xdf/0x150 [ 449.247041] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.252565] ? copy_mount_options+0x288/0x380 [ 449.257064] ksys_mount+0x12d/0x140 [ 449.260746] __x64_sys_mount+0xbe/0x150 [ 449.264714] do_syscall_64+0x1b9/0x820 [ 449.268608] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 449.273975] ? syscall_return_slowpath+0x5e0/0x5e0 [ 449.278903] ? trace_hardirqs_on_caller+0x310/0x310 [ 449.283924] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 449.288953] ? recalc_sigpending_tsk+0x180/0x180 [ 449.293729] ? kasan_check_write+0x14/0x20 [ 449.297969] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 449.302822] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 449.308014] RIP: 0033:0x457579 [ 449.311194] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 449.330080] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 449.337777] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 449.345033] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 449.352286] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 449.359544] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 449.366818] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 449.392383] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:12 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x18, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:12 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 449.414549] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:12 executing program 4 (fault-call:2 fault-nth:33): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:12 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x5]}, 0x10) shutdown(r0, 0x1) 19:16:12 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = openat$qat_adf_ctl(0xffffffffffffff9c, &(0x7f0000000000)='/dev/qat_adf_ctl\x00', 0x400, 0x0) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f00000003c0)=ANY=[@ANYBLOB="020000000000000002004e24fffff1ea000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000002004e23ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e210000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000050840000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e21e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e2200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"], 0x290) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 449.481374] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 449.519859] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:12 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866737f", 0x0, &(0x7f0000000380)="231a2a2800") [ 449.643596] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 449.653624] FAULT_INJECTION: forcing a failure. [ 449.653624] name failslab, interval 1, probability 0, space 0, times 0 [ 449.670983] CPU: 1 PID: 15603 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 449.678284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 449.687646] Call Trace: [ 449.690249] dump_stack+0x1c4/0x2b4 [ 449.693896] ? dump_stack_print_info.cold.2+0x52/0x52 [ 449.699131] ? __kernel_text_address+0xd/0x40 [ 449.703646] ? unwind_get_return_address+0x61/0xa0 [ 449.708594] should_fail.cold.4+0xa/0x17 [ 449.712676] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 449.717790] ? save_stack+0xa9/0xd0 [ 449.721428] ? graph_lock+0x170/0x170 [ 449.725234] ? save_stack+0x43/0xd0 [ 449.725248] ? kasan_kmalloc+0xc7/0xe0 [ 449.725265] ? kmem_cache_alloc_trace+0x152/0x750 [ 449.725282] ? __memcg_init_list_lru_node+0x185/0x2d0 19:16:12 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 449.725295] ? __list_lru_init+0x4d6/0x840 [ 449.725326] ? graph_lock+0x170/0x170 [ 449.732845] ? squashfs_mount+0x34/0x40 [ 449.732860] ? mount_fs+0xae/0x31d [ 449.732877] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 449.732889] ? do_mount+0x581/0x31f0 [ 449.732901] ? ksys_mount+0x12d/0x140 [ 449.732914] ? __x64_sys_mount+0xbe/0x150 [ 449.732929] ? do_syscall_64+0x1b9/0x820 [ 449.732946] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 449.732965] ? find_held_lock+0x36/0x1c0 [ 449.788368] ? __lock_is_held+0xb5/0x140 [ 449.792460] ? ___might_sleep+0x1ed/0x300 [ 449.796614] ? arch_local_save_flags+0x40/0x40 [ 449.801202] __should_failslab+0x124/0x180 [ 449.805451] should_failslab+0x9/0x14 [ 449.809252] kmem_cache_alloc_trace+0x2d7/0x750 [ 449.813949] ? __kmalloc_node+0x33/0x70 [ 449.817925] ? __kmalloc_node+0x33/0x70 [ 449.821903] ? rcu_read_lock_sched_held+0x108/0x120 [ 449.826917] __memcg_init_list_lru_node+0x185/0x2d0 [ 449.831955] ? kvfree_rcu+0x20/0x20 [ 449.835579] ? __kmalloc_node+0x47/0x70 [ 449.839546] __list_lru_init+0x4d6/0x840 [ 449.843598] ? list_lru_destroy+0x500/0x500 [ 449.847926] ? up_write+0x7b/0x220 [ 449.851479] ? down_read+0x1d0/0x1d0 [ 449.855182] ? init_wait_entry+0x1c0/0x1c0 [ 449.859413] ? prealloc_shrinker+0xe5/0x330 [ 449.863746] sget_userns+0x9c9/0xf10 [ 449.867468] ? kill_litter_super+0x60/0x60 [ 449.871709] ? ns_test_super+0x50/0x50 [ 449.875599] ? destroy_unused_super.part.10+0x110/0x110 [ 449.880994] ? do_raw_spin_lock+0xc1/0x200 [ 449.885251] ? blkdev_get+0xc8/0xb50 [ 449.888984] ? cap_capable+0x1f9/0x260 [ 449.892906] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.898476] ? security_capable+0x99/0xc0 [ 449.902636] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.908174] ? ns_capable_common+0x13f/0x170 [ 449.912573] ? kill_litter_super+0x60/0x60 [ 449.916797] sget+0x10b/0x150 [ 449.919891] ? ns_test_super+0x50/0x50 [ 449.923770] mount_bdev+0x111/0x3e0 [ 449.927398] ? init_once+0x20/0x20 [ 449.930941] squashfs_mount+0x34/0x40 [ 449.934730] mount_fs+0xae/0x31d [ 449.938187] vfs_kern_mount.part.35+0xdc/0x4f0 [ 449.942762] ? may_umount+0xb0/0xb0 [ 449.946378] ? _raw_read_unlock+0x2c/0x50 [ 449.950517] ? __get_fs_type+0x97/0xc0 [ 449.954396] do_mount+0x581/0x31f0 [ 449.957945] ? copy_mount_string+0x40/0x40 [ 449.962203] ? copy_mount_options+0x5f/0x380 [ 449.966610] ? rcu_read_lock_sched_held+0x108/0x120 [ 449.971628] ? kmem_cache_alloc_trace+0x353/0x750 [ 449.976491] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 449.982032] ? _copy_from_user+0xdf/0x150 [ 449.986168] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 449.991693] ? copy_mount_options+0x288/0x380 [ 449.996176] ksys_mount+0x12d/0x140 [ 449.999827] __x64_sys_mount+0xbe/0x150 [ 450.003796] do_syscall_64+0x1b9/0x820 [ 450.007672] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 450.013039] ? syscall_return_slowpath+0x5e0/0x5e0 [ 450.017980] ? trace_hardirqs_on_caller+0x310/0x310 [ 450.022984] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 450.027996] ? recalc_sigpending_tsk+0x180/0x180 [ 450.032750] ? kasan_check_write+0x14/0x20 [ 450.036974] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 450.041821] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 450.046999] RIP: 0033:0x457579 [ 450.050178] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 450.069073] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 450.076793] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 450.084045] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 19:16:12 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x4]}, 0x10) shutdown(r0, 0x1) [ 450.091297] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 450.098570] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 450.105832] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 450.129567] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:12 executing program 4 (fault-call:2 fault-nth:34): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 450.149620] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 450.170089] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 450.202572] FAULT_INJECTION: forcing a failure. [ 450.202572] name failslab, interval 1, probability 0, space 0, times 0 [ 450.214656] CPU: 1 PID: 15623 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 450.221961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 450.231348] Call Trace: [ 450.233958] dump_stack+0x1c4/0x2b4 [ 450.237641] ? dump_stack_print_info.cold.2+0x52/0x52 [ 450.243367] ? __kernel_text_address+0xd/0x40 [ 450.247887] ? unwind_get_return_address+0x61/0xa0 [ 450.252831] should_fail.cold.4+0xa/0x17 [ 450.256922] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 450.262036] ? save_stack+0xa9/0xd0 [ 450.265662] ? graph_lock+0x170/0x170 [ 450.269448] ? save_stack+0x43/0xd0 [ 450.273068] ? kasan_kmalloc+0xc7/0xe0 [ 450.276993] ? kmem_cache_alloc_trace+0x152/0x750 [ 450.281821] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 450.287000] ? __list_lru_init+0x4d6/0x840 [ 450.291223] ? graph_lock+0x170/0x170 [ 450.295014] ? squashfs_mount+0x34/0x40 [ 450.298975] ? mount_fs+0xae/0x31d [ 450.302504] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 450.307259] ? do_mount+0x581/0x31f0 [ 450.310975] ? ksys_mount+0x12d/0x140 [ 450.314761] ? __x64_sys_mount+0xbe/0x150 [ 450.318897] ? do_syscall_64+0x1b9/0x820 [ 450.322944] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 450.328299] ? find_held_lock+0x36/0x1c0 [ 450.332383] ? __lock_is_held+0xb5/0x140 [ 450.336465] ? ___might_sleep+0x1ed/0x300 [ 450.340613] ? arch_local_save_flags+0x40/0x40 [ 450.345189] __should_failslab+0x124/0x180 [ 450.349423] should_failslab+0x9/0x14 [ 450.353238] kmem_cache_alloc_trace+0x2d7/0x750 [ 450.357941] ? __kmalloc_node+0x33/0x70 [ 450.361918] ? __kmalloc_node+0x33/0x70 [ 450.365918] ? rcu_read_lock_sched_held+0x108/0x120 [ 450.370927] __memcg_init_list_lru_node+0x185/0x2d0 [ 450.375945] ? kvfree_rcu+0x20/0x20 [ 450.379561] ? __kmalloc_node+0x47/0x70 [ 450.383542] __list_lru_init+0x4d6/0x840 [ 450.387611] ? list_lru_destroy+0x500/0x500 [ 450.391920] ? up_write+0x7b/0x220 [ 450.395448] ? down_read+0x1d0/0x1d0 [ 450.399152] ? init_wait_entry+0x1c0/0x1c0 [ 450.403376] ? prealloc_shrinker+0xe5/0x330 [ 450.407695] sget_userns+0x9c9/0xf10 [ 450.411401] ? kill_litter_super+0x60/0x60 [ 450.415628] ? ns_test_super+0x50/0x50 [ 450.419509] ? destroy_unused_super.part.10+0x110/0x110 [ 450.424869] ? kasan_check_write+0x14/0x20 [ 450.429116] ? do_raw_spin_lock+0xc1/0x200 [ 450.433358] ? blkdev_get+0xc8/0xb50 [ 450.437069] ? ___preempt_schedule+0x16/0x18 [ 450.441491] ? cap_capable+0x1f9/0x260 [ 450.445392] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 450.450924] ? security_capable+0x99/0xc0 [ 450.455072] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 450.460649] ? ns_capable_common+0x13f/0x170 [ 450.465052] ? kill_litter_super+0x60/0x60 [ 450.469278] sget+0x10b/0x150 [ 450.472377] ? ns_test_super+0x50/0x50 [ 450.476259] mount_bdev+0x111/0x3e0 [ 450.479878] ? init_once+0x20/0x20 [ 450.483410] squashfs_mount+0x34/0x40 [ 450.487204] mount_fs+0xae/0x31d [ 450.490592] vfs_kern_mount.part.35+0xdc/0x4f0 [ 450.495181] ? may_umount+0xb0/0xb0 [ 450.498800] ? _raw_read_unlock+0x2c/0x50 [ 450.502941] ? __get_fs_type+0x97/0xc0 [ 450.506855] do_mount+0x581/0x31f0 [ 450.510405] ? copy_mount_string+0x40/0x40 [ 450.514633] ? copy_mount_options+0x5f/0x380 [ 450.519047] ? rcu_read_lock_sched_held+0x108/0x120 [ 450.524088] ? kmem_cache_alloc_trace+0x353/0x750 [ 450.528925] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 450.534456] ? _copy_from_user+0xdf/0x150 [ 450.538646] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 450.544185] ? copy_mount_options+0x288/0x380 [ 450.548693] ksys_mount+0x12d/0x140 [ 450.552345] __x64_sys_mount+0xbe/0x150 [ 450.556331] do_syscall_64+0x1b9/0x820 [ 450.560211] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 450.565579] ? syscall_return_slowpath+0x5e0/0x5e0 [ 450.570512] ? trace_hardirqs_on_caller+0x310/0x310 [ 450.575531] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 450.580536] ? recalc_sigpending_tsk+0x180/0x180 [ 450.585291] ? kasan_check_write+0x14/0x20 [ 450.589528] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 450.594365] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 450.599559] RIP: 0033:0x457579 [ 450.602745] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 450.621642] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 450.629349] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 450.636612] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 450.643873] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 19:16:13 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f00000002c0)=0x0, &(0x7f0000000600), &(0x7f0000000640)) syz_mount_image$xfs(&(0x7f0000000000)='xfs\x00', &(0x7f0000000040)='./file0\x00', 0x6, 0x5, &(0x7f0000000580)=[{&(0x7f0000000100)="aee1c7f70c46ade7f04d56306de324b7e3a2c8ef6e422d4af6053df56ad11ac991b1eff2a4a486d9196933fa0ca4c51ec1d6ac9341032db0f3e8bab6a452128a5224c5c58ee8271d56b91ee5cc3c757169df1dce1af44bec318e7fe55a47b14db3ee8abd6f0b2bb3f1260bf9cbd8268a593ef2d94f9b774ead03b15216f785a1b4601e37025b948296fbb845221991a84cc058020bca2674880a9cd1262ac0dc616636739fdb109d1f6fcbfcc412c6ce445901bd569df2", 0xb7, 0x8000}, {&(0x7f00000001c0)="4dbade7e77e0fda3fe808421396da93788c0a78c61418bb650bbe684d6219d4010f003a63ec73b268a2573332023a7621ffa88e3165eef0ae0aca75184035cadc88687560a725806c7a485e8ffe0ca0f20d75a1e68599f7db9772e78acd7c0d8bf4b32ed877e452bc45026cab813fabb702dc4c1bc7416fe21c63f2b7b04950ad255f0f800e07fb08466e3c7a0b7a0f8cb517d63714b8a6c156706319ad25a64e00d385351d6f2b40bcd581092e97f690362aa7f597a0745989d1f5477695753e4a52645cf3fe4d81caee2487abbb7b8d48fb8745ea5484becdeb2", 0xdb, 0xfffffffffffffffd}, {&(0x7f00000003c0)="af108044f7c08fa0b35ed00274a9f205f6c0ce32588d7b921ad34f51cd20b39746e9f04aed3e6d17392120f49fa0c8ae8f0f5689290d7906c082a10cc0b89c260e23186fe64f8be7e15564a519529fd195b105e0d475997be1a6addf6bcc7fdf8146a05424df44dd97d6d70a3cc18b749acde1305b32b73590d0c41fe6675aea78759db7ec37b95d86ca3961cf228fb74a", 0x91, 0x10001}, {&(0x7f0000000480)="9b19feed0db9ab68fafd164d1994302911c4cf09d9eb4dd4ce3ba4d8c57d171f0c6e4fda924889a91f337bb96c977414be8a3d07a8fda6967f21e9b948c2c2e2adb3101bf3554f24df5321afcb972cf83c87192990386748fdf0d7c1d665869b8d4509dd9955475c86c29f050ac37f29", 0x70, 0x90ce}, {&(0x7f0000000500)="854074fafb101eb66333b07402eb81237f98755ef3fadaab0c128ce7e2603ef7f0f0c02d30a6c1a8ffbeffb0eaa3d82025c6bf28da13495881119e32d94a8cf7f1ec5d0e0c1640077f88127071c2a3004440963ff46d7c24c5cd3c351f388a0683f0bbc3f1dcb258f79f09ec7acb852edcb6d96ffd79", 0x76}], 0x2000, &(0x7f0000000680)={[{@prjquota='prjquota'}, {@nodiscard='nodiscard'}, {@pqnoenforce='pqnoenforce'}, {@rtdev={'rtdev', 0x3d, './file0'}}, {@quota='quota'}, {@rtdev={'rtdev', 0x3d, './file0'}}, {@allocsize={'allocsize', 0x3d, [0x7d, 0x77, 0x7f, 0x65, 0x36, 0x7d, 0x3f, 0x31]}}], [{@smackfsroot={'smackfsroot'}}, {@fowner_eq={'fowner', 0x3d, r0}}, {@fsmagic={'fsmagic', 0x3d, 0x81}}, {@smackfsdef={'smackfsdef', 0x3d, 'GPL/'}}]}) [ 450.651133] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 450.658413] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 450.760468] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 450.839990] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:14 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000900}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:14 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xa00000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:14 executing program 4 (fault-call:2 fault-nth:35): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:14 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:14 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") write$RDMA_USER_CM_CMD_CREATE_ID(0xffffffffffffff9c, &(0x7f0000000040)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000000)={0xffffffffffffffff}, 0x2}}, 0x20) write$RDMA_USER_CM_CMD_RESOLVE_ADDR(r0, &(0x7f0000000100)={0x15, 0x110, 0xfa00, {r1, 0x7ff, 0x0, 0x0, 0x0, @ib={0x1b, 0x3ff, 0x401, {"ef09311ac09eedecc74b4dbe5032585c"}, 0x7, 0x80, 0x7fffffff}, @in={0x2, 0x4e23}}}, 0x118) 19:16:14 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x3, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:14 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x40030000000000]}, 0x10) shutdown(r0, 0x1) [ 452.197278] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 452.207695] FAULT_INJECTION: forcing a failure. [ 452.207695] name failslab, interval 1, probability 0, space 0, times 0 [ 452.233564] CPU: 1 PID: 15651 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 452.241348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 452.250703] Call Trace: [ 452.253283] dump_stack+0x1c4/0x2b4 [ 452.256912] ? dump_stack_print_info.cold.2+0x52/0x52 [ 452.262114] ? __kernel_text_address+0xd/0x40 [ 452.266616] ? unwind_get_return_address+0x61/0xa0 [ 452.271575] should_fail.cold.4+0xa/0x17 [ 452.275644] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 452.280775] ? save_stack+0xa9/0xd0 [ 452.284412] ? graph_lock+0x170/0x170 [ 452.288212] ? save_stack+0x43/0xd0 [ 452.291839] ? kasan_kmalloc+0xc7/0xe0 [ 452.295733] ? kmem_cache_alloc_trace+0x152/0x750 [ 452.300588] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 452.305806] ? __list_lru_init+0x4d6/0x840 [ 452.310043] ? graph_lock+0x170/0x170 [ 452.313846] ? squashfs_mount+0x34/0x40 [ 452.317823] ? mount_fs+0xae/0x31d [ 452.321390] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 452.326146] ? do_mount+0x581/0x31f0 [ 452.329855] ? ksys_mount+0x12d/0x140 [ 452.333653] ? __x64_sys_mount+0xbe/0x150 [ 452.337813] ? do_syscall_64+0x1b9/0x820 [ 452.341881] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 452.347250] ? find_held_lock+0x36/0x1c0 [ 452.351334] ? __lock_is_held+0xb5/0x140 [ 452.355414] ? ___might_sleep+0x1ed/0x300 [ 452.359564] ? arch_local_save_flags+0x40/0x40 [ 452.364162] __should_failslab+0x124/0x180 [ 452.368402] should_failslab+0x9/0x14 [ 452.372203] kmem_cache_alloc_trace+0x2d7/0x750 [ 452.376876] ? __kmalloc_node+0x33/0x70 [ 452.380851] ? __kmalloc_node+0x33/0x70 [ 452.384830] ? rcu_read_lock_sched_held+0x108/0x120 [ 452.389854] __memcg_init_list_lru_node+0x185/0x2d0 [ 452.394878] ? kvfree_rcu+0x20/0x20 [ 452.398512] ? __kmalloc_node+0x47/0x70 [ 452.402512] __list_lru_init+0x4d6/0x840 [ 452.406577] ? list_lru_destroy+0x500/0x500 [ 452.410905] ? up_write+0x7b/0x220 [ 452.414458] ? down_read+0x1d0/0x1d0 [ 452.418179] ? init_wait_entry+0x1c0/0x1c0 [ 452.422414] ? prealloc_shrinker+0xe5/0x330 [ 452.426754] sget_userns+0x9c9/0xf10 [ 452.430467] ? kill_litter_super+0x60/0x60 [ 452.434724] ? ns_test_super+0x50/0x50 [ 452.438619] ? destroy_unused_super.part.10+0x110/0x110 [ 452.443993] ? do_raw_spin_lock+0xc1/0x200 [ 452.448235] ? blkdev_get+0xc8/0xb50 [ 452.451957] ? cap_capable+0x1f9/0x260 [ 452.455850] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 452.461389] ? security_capable+0x99/0xc0 [ 452.465547] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 452.471091] ? ns_capable_common+0x13f/0x170 [ 452.475510] ? kill_litter_super+0x60/0x60 [ 452.479744] sget+0x10b/0x150 [ 452.482869] ? ns_test_super+0x50/0x50 [ 452.486761] mount_bdev+0x111/0x3e0 [ 452.490395] ? init_once+0x20/0x20 [ 452.493965] squashfs_mount+0x34/0x40 [ 452.497782] mount_fs+0xae/0x31d [ 452.501158] vfs_kern_mount.part.35+0xdc/0x4f0 [ 452.505746] ? may_umount+0xb0/0xb0 [ 452.509376] ? _raw_read_unlock+0x2c/0x50 [ 452.513526] ? __get_fs_type+0x97/0xc0 [ 452.517422] do_mount+0x581/0x31f0 [ 452.520966] ? copy_mount_string+0x40/0x40 [ 452.525210] ? copy_mount_options+0x5f/0x380 [ 452.529624] ? rcu_read_lock_sched_held+0x108/0x120 [ 452.534644] ? kmem_cache_alloc_trace+0x353/0x750 [ 452.539491] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 452.545035] ? _copy_from_user+0xdf/0x150 [ 452.549187] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 452.554725] ? copy_mount_options+0x288/0x380 [ 452.559227] ksys_mount+0x12d/0x140 [ 452.562860] __x64_sys_mount+0xbe/0x150 [ 452.566838] do_syscall_64+0x1b9/0x820 [ 452.570758] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 452.576128] ? syscall_return_slowpath+0x5e0/0x5e0 [ 452.581064] ? trace_hardirqs_on_caller+0x310/0x310 [ 452.586096] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 452.591126] ? recalc_sigpending_tsk+0x180/0x180 [ 452.595884] ? kasan_check_write+0x14/0x20 [ 452.600140] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 452.605017] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 452.610204] RIP: 0033:0x457579 [ 452.613399] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 452.632324] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 452.640051] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 452.647334] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 452.654609] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 452.661877] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 452.669142] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 452.689645] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:15 executing program 4 (fault-call:2 fault-nth:36): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 452.699155] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 452.717459] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:15 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:16:15 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x200000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:15 executing program 0: syz_open_dev$vcsa(&(0x7f0000000640)='/dev/vcsa#\x00', 0x0, 0x20000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) io_pgetevents(0x0, 0x0, 0x0, &(0x7f0000000140), &(0x7f00000001c0)={0x77359400}, &(0x7f00000002c0)={&(0x7f0000000280), 0x8}) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000100)='/dev/snapshot\x00', 0x0, 0x0) accept$alg(0xffffffffffffffff, 0x0, 0x0) renameat(0xffffffffffffffff, &(0x7f00000000c0)='./file0/file0\x00', 0xffffffffffffffff, &(0x7f0000000300)='./file0\x00') ioctl$GIO_SCRNMAP(0xffffffffffffffff, 0x4b40, &(0x7f0000000200)=""/96) close(r1) 19:16:15 executing program 0: syz_open_dev$vcsa(&(0x7f0000000640)='/dev/vcsa#\x00', 0x0, 0x20000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) io_pgetevents(0x0, 0x0, 0x0, &(0x7f0000000140), &(0x7f00000001c0)={0x77359400}, &(0x7f00000002c0)={&(0x7f0000000280), 0x8}) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000100)='/dev/snapshot\x00', 0x0, 0x0) accept$alg(0xffffffffffffffff, 0x0, 0x0) renameat(0xffffffffffffffff, &(0x7f00000000c0)='./file0/file0\x00', 0xffffffffffffffff, &(0x7f0000000300)='./file0\x00') ioctl$GIO_SCRNMAP(0xffffffffffffffff, 0x4b40, &(0x7f0000000200)=""/96) close(r1) [ 452.868216] FAULT_INJECTION: forcing a failure. [ 452.868216] name failslab, interval 1, probability 0, space 0, times 0 [ 452.890862] CPU: 1 PID: 15675 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 452.898173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 452.907539] Call Trace: [ 452.910148] dump_stack+0x1c4/0x2b4 [ 452.913800] ? dump_stack_print_info.cold.2+0x52/0x52 [ 452.918999] ? __kernel_text_address+0xd/0x40 [ 452.923496] ? unwind_get_return_address+0x61/0xa0 [ 452.928444] should_fail.cold.4+0xa/0x17 [ 452.932523] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 452.937637] ? save_stack+0xa9/0xd0 [ 452.941278] ? graph_lock+0x170/0x170 [ 452.945121] ? save_stack+0x43/0xd0 [ 452.948759] ? kasan_kmalloc+0xc7/0xe0 [ 452.952655] ? kmem_cache_alloc_trace+0x152/0x750 [ 452.957506] ? __memcg_init_list_lru_node+0x185/0x2d0 [ 452.962701] ? __list_lru_init+0x4d6/0x840 [ 452.966946] ? graph_lock+0x170/0x170 [ 452.970777] ? squashfs_mount+0x34/0x40 [ 452.974768] ? mount_fs+0xae/0x31d [ 452.978334] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 452.983104] ? do_mount+0x581/0x31f0 [ 452.983118] ? ksys_mount+0x12d/0x140 [ 452.983131] ? __x64_sys_mount+0xbe/0x150 [ 452.983148] ? do_syscall_64+0x1b9/0x820 [ 452.983165] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 452.983187] ? find_held_lock+0x36/0x1c0 [ 452.983206] ? __lock_is_held+0xb5/0x140 [ 452.990752] ? ___might_sleep+0x1ed/0x300 [ 452.990772] ? arch_local_save_flags+0x40/0x40 [ 452.990803] __should_failslab+0x124/0x180 [ 452.990821] should_failslab+0x9/0x14 [ 453.029221] kmem_cache_alloc_trace+0x2d7/0x750 [ 453.033961] ? __kmalloc_node+0x33/0x70 [ 453.037925] ? __kmalloc_node+0x33/0x70 [ 453.041890] ? rcu_read_lock_sched_held+0x108/0x120 [ 453.046895] __memcg_init_list_lru_node+0x185/0x2d0 [ 453.051913] ? kvfree_rcu+0x20/0x20 [ 453.055633] ? __kmalloc_node+0x47/0x70 [ 453.059613] __list_lru_init+0x4d6/0x840 [ 453.063699] ? list_lru_destroy+0x500/0x500 [ 453.068013] ? up_write+0x7b/0x220 [ 453.071548] ? down_read+0x1d0/0x1d0 [ 453.075250] ? init_wait_entry+0x1c0/0x1c0 [ 453.079474] ? prealloc_shrinker+0xe5/0x330 [ 453.083788] sget_userns+0x9c9/0xf10 [ 453.087488] ? kill_litter_super+0x60/0x60 [ 453.091724] ? ns_test_super+0x50/0x50 [ 453.095612] ? destroy_unused_super.part.10+0x110/0x110 [ 453.100982] ? kasan_check_write+0x14/0x20 [ 453.105204] ? do_raw_spin_lock+0xc1/0x200 [ 453.109432] ? blkdev_get+0xc8/0xb50 [ 453.113136] ? cap_capable+0x1f9/0x260 [ 453.117030] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 453.122570] ? security_capable+0x99/0xc0 [ 453.126746] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 453.132274] ? ns_capable_common+0x13f/0x170 [ 453.136702] ? kill_litter_super+0x60/0x60 [ 453.140926] sget+0x10b/0x150 [ 453.144030] ? ns_test_super+0x50/0x50 [ 453.147922] mount_bdev+0x111/0x3e0 [ 453.151541] ? init_once+0x20/0x20 [ 453.155072] squashfs_mount+0x34/0x40 [ 453.158879] mount_fs+0xae/0x31d [ 453.162245] vfs_kern_mount.part.35+0xdc/0x4f0 [ 453.166819] ? may_umount+0xb0/0xb0 [ 453.170434] ? _raw_read_unlock+0x2c/0x50 [ 453.174581] ? __get_fs_type+0x97/0xc0 [ 453.178476] do_mount+0x581/0x31f0 [ 453.182007] ? copy_mount_string+0x40/0x40 [ 453.186235] ? copy_mount_options+0x5f/0x380 [ 453.190635] ? rcu_read_lock_sched_held+0x108/0x120 [ 453.195654] ? kmem_cache_alloc_trace+0x353/0x750 [ 453.200497] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 453.206039] ? copy_mount_options+0x288/0x380 [ 453.210529] ksys_mount+0x12d/0x140 [ 453.214151] __x64_sys_mount+0xbe/0x150 [ 453.218141] do_syscall_64+0x1b9/0x820 [ 453.222024] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 453.227379] ? syscall_return_slowpath+0x5e0/0x5e0 [ 453.232312] ? trace_hardirqs_on_caller+0x310/0x310 [ 453.237365] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 453.242387] ? recalc_sigpending_tsk+0x180/0x180 [ 453.247175] ? kasan_check_write+0x14/0x20 [ 453.251415] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 453.256251] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 453.261431] RIP: 0033:0x457579 [ 453.264628] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 453.283516] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 453.291214] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 453.298491] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 453.305848] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 453.313120] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 453.320389] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:17 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000003500}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:17 executing program 0: syz_mount_image$reiserfs(&(0x7f0000000000)='reiserfs\x00', &(0x7f0000000040)='./file0\x00', 0x0, 0x0, &(0x7f0000000100), 0x0, &(0x7f0000000300)={[{@errors_continue='errors=continue'}]}) 19:16:17 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:17 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xdc050000]}, 0x10) shutdown(r0, 0x1) 19:16:17 executing program 4 (fault-call:2 fault-nth:37): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 454.979951] FAULT_INJECTION: forcing a failure. [ 454.979951] name failslab, interval 1, probability 0, space 0, times 0 [ 455.001113] CPU: 1 PID: 15686 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 455.008417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 455.017784] Call Trace: [ 455.020394] dump_stack+0x1c4/0x2b4 [ 455.024045] ? dump_stack_print_info.cold.2+0x52/0x52 [ 455.029272] should_fail.cold.4+0xa/0x17 [ 455.033365] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 455.038489] ? __save_stack_trace+0x8d/0xf0 [ 455.042826] ? graph_lock+0x170/0x170 [ 455.046650] ? graph_lock+0x170/0x170 [ 455.050466] ? save_stack+0xa9/0xd0 [ 455.054111] ? save_stack+0x43/0xd0 [ 455.057763] ? find_held_lock+0x36/0x1c0 [ 455.061840] ? __lock_is_held+0xb5/0x140 [ 455.065918] ? ___might_sleep+0x1ed/0x300 [ 455.070106] ? arch_local_save_flags+0x40/0x40 [ 455.074704] ? __lockdep_init_map+0x105/0x590 [ 455.078007] REISERFS warning (device loop0): super-6506 reiserfs_getopt: bad value "continue" for option "errors" [ 455.078007] [ 455.079214] ? check_preemption_disabled+0x48/0x200 [ 455.079242] __should_failslab+0x124/0x180 [ 455.079260] should_failslab+0x9/0x14 [ 455.079277] __kmalloc+0x2d4/0x760 [ 455.079301] ? squashfs_read_table+0x4c/0x1ce [ 455.079341] squashfs_read_table+0x4c/0x1ce [ 455.116518] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 455.122105] squashfs_fill_super+0x15e/0x1743 [ 455.126615] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 455.131643] ? set_blocksize+0x2c1/0x340 [ 455.135710] mount_bdev+0x30c/0x3e0 [ 455.139461] ? init_once+0x20/0x20 [ 455.143016] squashfs_mount+0x34/0x40 [ 455.146848] mount_fs+0xae/0x31d [ 455.150230] vfs_kern_mount.part.35+0xdc/0x4f0 [ 455.154800] ? may_umount+0xb0/0xb0 [ 455.158425] ? _raw_read_unlock+0x2c/0x50 [ 455.162610] ? __get_fs_type+0x97/0xc0 [ 455.166515] do_mount+0x581/0x31f0 [ 455.170062] ? copy_mount_string+0x40/0x40 [ 455.174366] ? copy_mount_options+0x5f/0x380 19:16:17 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x12, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 455.178814] ? rcu_read_lock_sched_held+0x108/0x120 [ 455.183855] ? kmem_cache_alloc_trace+0x353/0x750 [ 455.188709] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 455.194255] ? _copy_from_user+0xdf/0x150 [ 455.198430] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 455.203975] ? copy_mount_options+0x288/0x380 [ 455.208475] ksys_mount+0x12d/0x140 [ 455.212112] __x64_sys_mount+0xbe/0x150 [ 455.216110] do_syscall_64+0x1b9/0x820 [ 455.219994] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 455.225370] ? syscall_return_slowpath+0x5e0/0x5e0 [ 455.230330] ? trace_hardirqs_on_caller+0x310/0x310 [ 455.235378] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 455.240413] ? recalc_sigpending_tsk+0x180/0x180 [ 455.245678] ? kasan_check_write+0x14/0x20 [ 455.249927] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 455.254783] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 455.259974] RIP: 0033:0x457579 [ 455.263179] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 455.282090] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 455.289813] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 455.297092] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 455.304392] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 455.311686] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 455.311696] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 455.322929] squashfs: SQUASHFS error: unable to read squashfs_super_block [ 455.345774] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:18 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x600]}, 0x10) shutdown(r0, 0x1) [ 455.382648] REISERFS warning (device loop0): super-6506 reiserfs_getopt: bad value "continue" for option "errors" [ 455.382648] [ 455.400195] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:18 executing program 0: r0 = socket$inet6(0xa, 0x1000000000002, 0x0) ioctl(r0, 0x8912, &(0x7f0000000280)="153f6234488dd25d766070") r1 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000280)='hugetlb.2MB.usage_ir_bytes\x00', 0x275a, 0x0) ioctl$FS_IOC_FSSETXATTR(r1, 0x401c5820, &(0x7f00000000c0)={0x20}) r2 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='cgroup.controllers\x00', 0x275a, 0x0) write$cgroup_int(r2, &(0x7f0000000380), 0x10076) ioctl$EXT4_IOC_ALLOC_DA_BLKS(r2, 0x660c) write$binfmt_elf64(r1, &(0x7f0000000140)=ANY=[@ANYRESOCT], 0x1732) ioctl$EXT4_IOC_MOVE_EXT(r2, 0xc028660f, &(0x7f0000001300)={0x0, r1}) writev(r2, &(0x7f0000000040)=[{&(0x7f0000000180)='\x00', 0x1}], 0x1) ioctl$FIBMAP(r2, 0x1, &(0x7f00000002c0)) 19:16:18 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:18 executing program 4 (fault-call:2 fault-nth:38): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:18 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x11]}, 0x10) shutdown(r0, 0x1) [ 455.601885] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 455.621594] FAULT_INJECTION: forcing a failure. [ 455.621594] name failslab, interval 1, probability 0, space 0, times 0 [ 455.634874] CPU: 0 PID: 15720 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 455.642184] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 455.651554] Call Trace: [ 455.654137] dump_stack+0x1c4/0x2b4 [ 455.657772] ? dump_stack_print_info.cold.2+0x52/0x52 [ 455.662954] ? __kernel_text_address+0xd/0x40 [ 455.667443] ? unwind_get_return_address+0x61/0xa0 [ 455.672367] should_fail.cold.4+0xa/0x17 [ 455.676436] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 455.681547] ? save_stack+0xa9/0xd0 [ 455.685162] ? graph_lock+0x170/0x170 [ 455.688946] ? save_stack+0x43/0xd0 [ 455.692568] ? kasan_kmalloc+0xc7/0xe0 [ 455.696466] ? __kmalloc+0x14e/0x760 [ 455.700167] ? squashfs_read_table+0x4c/0x1ce [ 455.704650] ? squashfs_fill_super+0x15e/0x1743 [ 455.709306] ? graph_lock+0x170/0x170 [ 455.713103] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 455.717846] ? do_mount+0x581/0x31f0 [ 455.721556] ? ksys_mount+0x12d/0x140 [ 455.725365] ? __x64_sys_mount+0xbe/0x150 [ 455.729504] ? do_syscall_64+0x1b9/0x820 [ 455.733587] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 455.738938] ? save_stack+0x43/0xd0 [ 455.742555] ? find_held_lock+0x36/0x1c0 [ 455.746613] ? __lock_is_held+0xb5/0x140 [ 455.750695] ? ___might_sleep+0x1ed/0x300 [ 455.754843] ? arch_local_save_flags+0x40/0x40 [ 455.759453] __should_failslab+0x124/0x180 [ 455.763692] should_failslab+0x9/0x14 [ 455.767491] __kmalloc+0x2d4/0x760 [ 455.771061] ? squashfs_read_table+0x9b/0x1ce [ 455.775594] squashfs_read_table+0x9b/0x1ce [ 455.779923] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 455.785464] squashfs_fill_super+0x15e/0x1743 [ 455.789950] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 455.795007] ? set_blocksize+0x2c1/0x340 [ 455.799085] mount_bdev+0x30c/0x3e0 [ 455.802703] ? init_once+0x20/0x20 [ 455.806234] squashfs_mount+0x34/0x40 [ 455.810034] mount_fs+0xae/0x31d [ 455.813390] vfs_kern_mount.part.35+0xdc/0x4f0 [ 455.817962] ? may_umount+0xb0/0xb0 [ 455.821575] ? _raw_read_unlock+0x2c/0x50 [ 455.825713] ? __get_fs_type+0x97/0xc0 [ 455.829596] do_mount+0x581/0x31f0 [ 455.833142] ? copy_mount_string+0x40/0x40 [ 455.837381] ? copy_mount_options+0x5f/0x380 [ 455.841787] ? rcu_read_lock_sched_held+0x108/0x120 [ 455.846802] ? kmem_cache_alloc_trace+0x353/0x750 [ 455.851656] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 455.857180] ? _copy_from_user+0xdf/0x150 [ 455.861342] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 455.866882] ? copy_mount_options+0x288/0x380 [ 455.871384] ksys_mount+0x12d/0x140 [ 455.875014] __x64_sys_mount+0xbe/0x150 [ 455.878982] do_syscall_64+0x1b9/0x820 [ 455.882857] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 455.888212] ? syscall_return_slowpath+0x5e0/0x5e0 [ 455.893132] ? trace_hardirqs_on_caller+0x310/0x310 [ 455.898140] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 455.903142] ? recalc_sigpending_tsk+0x180/0x180 [ 455.907884] ? kasan_check_write+0x14/0x20 [ 455.912126] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 455.916996] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 455.922179] RIP: 0033:0x457579 [ 455.925374] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 455.944276] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 455.951972] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 455.959238] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 455.966508] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 455.973766] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 455.981021] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 455.990362] squashfs: SQUASHFS error: unable to read squashfs_super_block 19:16:18 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") [ 456.006075] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:20 executing program 0: socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000001c0)) r0 = inotify_init1(0x0) fcntl$setown(r0, 0x8, 0xffffffffffffffff) fcntl$getownex(r0, 0x10, &(0x7f0000000080)={0x0, 0x0}) ptrace$setopts(0x4206, r1, 0x0, 0x0) ptrace(0x4207, r1) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000000)={"79616d300001178b00", 0x4014}) ptrace$setregset(0x4209, r1, 0x20000004, &(0x7f0000000100)={&(0x7f0000000040)}) sendfile(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000000080), 0x0) 19:16:20 executing program 4 (fault-call:2 fault-nth:39): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:20 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfec0]}, 0x10) shutdown(r0, 0x1) 19:16:20 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000b00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866738c", 0x0, &(0x7f0000000380)="231a2a2800") [ 458.040390] FAULT_INJECTION: forcing a failure. [ 458.040390] name failslab, interval 1, probability 0, space 0, times 0 [ 458.090895] CPU: 0 PID: 15742 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 458.098221] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 458.107580] Call Trace: [ 458.110193] dump_stack+0x1c4/0x2b4 [ 458.113842] ? dump_stack_print_info.cold.2+0x52/0x52 [ 458.119045] ? kernel_text_address+0x79/0xf0 [ 458.123477] should_fail.cold.4+0xa/0x17 [ 458.127557] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 458.132694] ? graph_lock+0x170/0x170 [ 458.136704] ? save_stack+0xa9/0xd0 [ 458.140354] ? graph_lock+0x170/0x170 [ 458.144170] ? squashfs_read_table+0x9b/0x1ce [ 458.148671] ? squashfs_fill_super+0x15e/0x1743 [ 458.153359] ? mount_bdev+0x30c/0x3e0 [ 458.157182] ? squashfs_mount+0x34/0x40 [ 458.161168] ? mount_fs+0xae/0x31d [ 458.164718] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 458.169505] ? do_mount+0x581/0x31f0 [ 458.173240] ? ksys_mount+0x12d/0x140 [ 458.177067] ? find_held_lock+0x36/0x1c0 [ 458.181144] ? __lock_is_held+0xb5/0x140 [ 458.185247] ? ___might_sleep+0x1ed/0x300 [ 458.189432] ? arch_local_save_flags+0x40/0x40 [ 458.194049] __should_failslab+0x124/0x180 [ 458.198300] should_failslab+0x9/0x14 [ 458.202137] kmem_cache_alloc_trace+0x2d7/0x750 [ 458.202155] ? rcu_read_lock_sched_held+0x108/0x120 [ 458.202172] ? __kmalloc+0x5de/0x760 [ 458.202197] squashfs_page_actor_init+0x51/0x210 [ 458.211882] squashfs_read_table+0xc2/0x1ce [ 458.211899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 458.211925] squashfs_fill_super+0x15e/0x1743 [ 458.234711] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 458.234728] ? set_blocksize+0x2c1/0x340 [ 458.234754] mount_bdev+0x30c/0x3e0 [ 458.234770] ? init_once+0x20/0x20 [ 458.234791] squashfs_mount+0x34/0x40 [ 458.234810] mount_fs+0xae/0x31d [ 458.244093] vfs_kern_mount.part.35+0xdc/0x4f0 [ 458.244115] ? may_umount+0xb0/0xb0 [ 458.244131] ? _raw_read_unlock+0x2c/0x50 [ 458.244148] ? __get_fs_type+0x97/0xc0 [ 458.244169] do_mount+0x581/0x31f0 [ 458.244192] ? copy_mount_string+0x40/0x40 [ 458.282507] ? copy_mount_options+0x5f/0x380 [ 458.286934] ? rcu_read_lock_sched_held+0x108/0x120 [ 458.291965] ? kmem_cache_alloc_trace+0x353/0x750 [ 458.296817] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 458.302361] ? _copy_from_user+0xdf/0x150 [ 458.306526] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 458.312048] ? copy_mount_options+0x288/0x380 [ 458.316533] ksys_mount+0x12d/0x140 [ 458.320156] __x64_sys_mount+0xbe/0x150 [ 458.324149] do_syscall_64+0x1b9/0x820 [ 458.328039] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 458.333392] ? syscall_return_slowpath+0x5e0/0x5e0 [ 458.338340] ? trace_hardirqs_on_caller+0x310/0x310 [ 458.343365] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 458.348370] ? recalc_sigpending_tsk+0x180/0x180 [ 458.353115] ? kasan_check_write+0x14/0x20 [ 458.357346] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 458.362193] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 458.367375] RIP: 0033:0x457579 [ 458.370569] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 458.389460] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 458.397168] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 458.404422] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 458.411688] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 458.418974] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 458.426234] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 458.440508] squashfs: SQUASHFS error: unable to read squashfs_super_block 19:16:21 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xa, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:21 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x1100000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:21 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfsb', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:21 executing program 0: syz_open_procfs(0x0, &(0x7f0000000200)='net/netfilter\x00') 19:16:21 executing program 4 (fault-call:2 fault-nth:40): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:21 executing program 0: r0 = socket$packet(0x11, 0x4000000003, 0x300) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f00000002c0)={0x1, &(0x7f0000000040)=[{0x10000000000006}]}, 0x10) r1 = socket$inet6(0xa, 0x400000000001, 0x0) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$inet6(r1, &(0x7f0000000180)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000e77fff), 0xfffffffffffffe64, 0x20000008, &(0x7f00008d4fe4)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) [ 458.567882] FAULT_INJECTION: forcing a failure. [ 458.567882] name failslab, interval 1, probability 0, space 0, times 0 [ 458.603313] CPU: 1 PID: 15769 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 458.610695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 458.620050] Call Trace: [ 458.623099] dump_stack+0x1c4/0x2b4 [ 458.626745] ? dump_stack_print_info.cold.2+0x52/0x52 [ 458.631944] ? __kernel_text_address+0xd/0x40 [ 458.636447] ? unwind_get_return_address+0x61/0xa0 [ 458.641386] should_fail.cold.4+0xa/0x17 [ 458.645456] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 458.650568] ? save_stack+0xa9/0xd0 [ 458.654199] ? graph_lock+0x170/0x170 [ 458.657999] ? save_stack+0x43/0xd0 [ 458.661625] ? kasan_kmalloc+0xc7/0xe0 [ 458.665516] ? __kmalloc+0x14e/0x760 [ 458.669234] ? squashfs_read_table+0x4c/0x1ce [ 458.673744] ? squashfs_fill_super+0x15e/0x1743 [ 458.678415] ? graph_lock+0x170/0x170 [ 458.682223] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 458.686978] ? do_mount+0x581/0x31f0 [ 458.690687] ? ksys_mount+0x12d/0x140 [ 458.694488] ? __x64_sys_mount+0xbe/0x150 [ 458.698639] ? do_syscall_64+0x1b9/0x820 [ 458.702707] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 458.708070] ? save_stack+0x43/0xd0 [ 458.711711] ? find_held_lock+0x36/0x1c0 [ 458.715788] ? __lock_is_held+0xb5/0x140 [ 458.719861] ? ___might_sleep+0x1ed/0x300 [ 458.724011] ? arch_local_save_flags+0x40/0x40 [ 458.728607] __should_failslab+0x124/0x180 [ 458.732848] should_failslab+0x9/0x14 [ 458.736648] __kmalloc+0x2d4/0x760 [ 458.740199] ? squashfs_read_table+0x9b/0x1ce [ 458.744706] squashfs_read_table+0x9b/0x1ce [ 458.749035] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 458.754772] squashfs_fill_super+0x15e/0x1743 [ 458.759283] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 458.764303] ? set_blocksize+0x2c1/0x340 [ 458.768384] mount_bdev+0x30c/0x3e0 [ 458.772015] ? init_once+0x20/0x20 [ 458.775566] squashfs_mount+0x34/0x40 [ 458.779386] mount_fs+0xae/0x31d [ 458.782762] vfs_kern_mount.part.35+0xdc/0x4f0 [ 458.787356] ? may_umount+0xb0/0xb0 [ 458.790985] ? _raw_read_unlock+0x2c/0x50 [ 458.795140] ? __get_fs_type+0x97/0xc0 [ 458.799034] do_mount+0x581/0x31f0 [ 458.802582] ? copy_mount_string+0x40/0x40 [ 458.806833] ? copy_mount_options+0x5f/0x380 [ 458.811248] ? rcu_read_lock_sched_held+0x108/0x120 [ 458.816270] ? kmem_cache_alloc_trace+0x353/0x750 [ 458.821128] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 458.826668] ? copy_mount_options+0x288/0x380 [ 458.831171] ksys_mount+0x12d/0x140 [ 458.834805] __x64_sys_mount+0xbe/0x150 [ 458.838790] do_syscall_64+0x1b9/0x820 [ 458.842681] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 458.848053] ? syscall_return_slowpath+0x5e0/0x5e0 [ 458.852995] ? trace_hardirqs_on_caller+0x310/0x310 [ 458.858015] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 458.863035] ? recalc_sigpending_tsk+0x180/0x180 [ 458.867792] ? kasan_check_write+0x14/0x20 [ 458.872035] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 458.876890] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 458.882114] RIP: 0033:0x457579 [ 458.885338] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 458.904243] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 458.911953] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 19:16:21 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xdc05000000000000]}, 0x10) shutdown(r0, 0x1) [ 458.919223] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 458.926495] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 458.933765] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 458.941057] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:21 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 459.032235] squashfs: SQUASHFS error: unable to read squashfs_super_block 19:16:21 executing program 4 (fault-call:2 fault-nth:41): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 459.067850] nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. [ 459.090287] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 459.124928] FAULT_INJECTION: forcing a failure. [ 459.124928] name failslab, interval 1, probability 0, space 0, times 0 [ 459.136380] CPU: 1 PID: 15788 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 459.143679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 459.153042] Call Trace: [ 459.155656] dump_stack+0x1c4/0x2b4 [ 459.159304] ? dump_stack_print_info.cold.2+0x52/0x52 [ 459.164545] ? kernel_text_address+0x79/0xf0 [ 459.168995] should_fail.cold.4+0xa/0x17 [ 459.173063] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 459.178179] ? graph_lock+0x170/0x170 [ 459.181991] ? save_stack+0xa9/0xd0 [ 459.185622] ? graph_lock+0x170/0x170 [ 459.189454] ? squashfs_read_table+0x9b/0x1ce [ 459.193955] ? squashfs_fill_super+0x15e/0x1743 [ 459.198627] ? mount_bdev+0x30c/0x3e0 [ 459.202433] ? squashfs_mount+0x34/0x40 [ 459.206442] ? mount_fs+0xae/0x31d [ 459.209983] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 459.214740] ? do_mount+0x581/0x31f0 [ 459.218476] ? ksys_mount+0x12d/0x140 [ 459.222281] ? find_held_lock+0x36/0x1c0 [ 459.226355] ? __lock_is_held+0xb5/0x140 [ 459.230430] ? ___might_sleep+0x1ed/0x300 [ 459.234581] ? arch_local_save_flags+0x40/0x40 [ 459.239179] __should_failslab+0x124/0x180 [ 459.243934] should_failslab+0x9/0x14 [ 459.247734] kmem_cache_alloc_trace+0x2d7/0x750 [ 459.252406] ? rcu_read_lock_sched_held+0x108/0x120 [ 459.257437] ? __kmalloc+0x5de/0x760 [ 459.261159] squashfs_page_actor_init+0x51/0x210 [ 459.265920] squashfs_read_table+0xc2/0x1ce [ 459.270246] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 459.275795] squashfs_fill_super+0x15e/0x1743 [ 459.280294] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 459.285328] ? set_blocksize+0x2c1/0x340 [ 459.289401] mount_bdev+0x30c/0x3e0 [ 459.293031] ? init_once+0x20/0x20 [ 459.296584] squashfs_mount+0x34/0x40 [ 459.300391] mount_fs+0xae/0x31d [ 459.303773] vfs_kern_mount.part.35+0xdc/0x4f0 [ 459.308374] ? may_umount+0xb0/0xb0 [ 459.312015] ? _raw_read_unlock+0x2c/0x50 [ 459.316176] ? __get_fs_type+0x97/0xc0 [ 459.320099] do_mount+0x581/0x31f0 [ 459.323648] ? copy_mount_string+0x40/0x40 [ 459.327894] ? copy_mount_options+0x5f/0x380 [ 459.332304] ? rcu_read_lock_sched_held+0x108/0x120 [ 459.337345] ? kmem_cache_alloc_trace+0x353/0x750 [ 459.342198] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 459.347750] ? _copy_from_user+0xdf/0x150 [ 459.351925] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 459.357463] ? copy_mount_options+0x288/0x380 [ 459.361966] ksys_mount+0x12d/0x140 [ 459.365598] __x64_sys_mount+0xbe/0x150 [ 459.369580] do_syscall_64+0x1b9/0x820 [ 459.373471] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 459.378850] ? syscall_return_slowpath+0x5e0/0x5e0 [ 459.383783] ? trace_hardirqs_on_caller+0x310/0x310 [ 459.388977] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 459.393996] ? recalc_sigpending_tsk+0x180/0x180 [ 459.398754] ? kasan_check_write+0x14/0x20 [ 459.402998] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 459.407850] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 459.413046] RIP: 0033:0x457579 [ 459.416253] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 459.435152] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 459.442887] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 459.450170] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 459.457437] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 459.464708] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 19:16:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfeffffff]}, 0x10) shutdown(r0, 0x1) [ 459.471975] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 459.482048] squashfs: SQUASHFS error: unable to read squashfs_super_block [ 459.503098] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:23 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000600}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:23 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 461.107069] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 461.125704] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:24 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d11}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:24 executing program 4 (fault-call:2 fault-nth:42): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:24 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:24 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xf]}, 0x10) shutdown(r0, 0x1) 19:16:24 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") [ 461.628935] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 461.639610] FAULT_INJECTION: forcing a failure. [ 461.639610] name failslab, interval 1, probability 0, space 0, times 0 [ 461.669923] CPU: 1 PID: 15815 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 461.677259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 461.686611] Call Trace: [ 461.689208] dump_stack+0x1c4/0x2b4 [ 461.692849] ? dump_stack_print_info.cold.2+0x52/0x52 [ 461.698044] ? is_bpf_text_address+0xac/0x170 [ 461.702549] ? check_preemption_disabled+0x48/0x200 [ 461.707575] should_fail.cold.4+0xa/0x17 [ 461.711642] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 461.716925] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 461.722038] ? rcu_bh_qs+0xc0/0xc0 [ 461.725591] ? unwind_dump+0x190/0x190 [ 461.729484] ? graph_lock+0x170/0x170 [ 461.733301] ? is_bpf_text_address+0xd3/0x170 [ 461.737807] ? graph_lock+0x170/0x170 [ 461.741613] ? __kernel_text_address+0xd/0x40 [ 461.746118] ? unwind_get_return_address+0x61/0xa0 [ 461.751055] ? find_held_lock+0x36/0x1c0 [ 461.755126] ? __lock_is_held+0xb5/0x140 [ 461.759205] ? ___might_sleep+0x1ed/0x300 [ 461.763359] ? mount_bdev+0x30c/0x3e0 [ 461.767164] ? arch_local_save_flags+0x40/0x40 [ 461.771746] ? do_mount+0x581/0x31f0 [ 461.775463] ? ksys_mount+0x12d/0x140 [ 461.779264] ? __x64_sys_mount+0xbe/0x150 [ 461.783415] ? do_syscall_64+0x1b9/0x820 [ 461.787486] __should_failslab+0x124/0x180 [ 461.791743] should_failslab+0x9/0x14 [ 461.795562] __kmalloc+0x2d4/0x760 [ 461.799116] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 461.804665] ? check_preemption_disabled+0x48/0x200 [ 461.809687] ? squashfs_read_data+0x247/0x1950 [ 461.814281] squashfs_read_data+0x247/0x1950 [ 461.818700] ? __lock_is_held+0xb5/0x140 [ 461.822781] ? jbd2_journal_put_journal_head.cold.55+0xdf/0xdf [ 461.828759] ? rcu_read_lock_sched_held+0x108/0x120 [ 461.833780] ? __kmalloc+0x5de/0x760 [ 461.837508] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 461.843052] squashfs_read_table+0x15b/0x1ce [ 461.847481] squashfs_fill_super+0x15e/0x1743 [ 461.851977] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 461.856996] ? set_blocksize+0x2c1/0x340 [ 461.861072] mount_bdev+0x30c/0x3e0 [ 461.864710] ? init_once+0x20/0x20 [ 461.868262] squashfs_mount+0x34/0x40 [ 461.872065] mount_fs+0xae/0x31d [ 461.875455] vfs_kern_mount.part.35+0xdc/0x4f0 [ 461.880042] ? may_umount+0xb0/0xb0 [ 461.883675] ? _raw_read_unlock+0x2c/0x50 [ 461.887829] ? __get_fs_type+0x97/0xc0 [ 461.891727] do_mount+0x581/0x31f0 [ 461.895280] ? copy_mount_string+0x40/0x40 [ 461.899525] ? copy_mount_options+0x5f/0x380 [ 461.903938] ? rcu_read_lock_sched_held+0x108/0x120 [ 461.908961] ? kmem_cache_alloc_trace+0x353/0x750 [ 461.913813] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 461.919360] ? _copy_from_user+0xdf/0x150 [ 461.923519] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 461.929055] ? copy_mount_options+0x288/0x380 [ 461.933564] ksys_mount+0x12d/0x140 [ 461.937197] __x64_sys_mount+0xbe/0x150 [ 461.941181] do_syscall_64+0x1b9/0x820 [ 461.945075] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 461.950446] ? syscall_return_slowpath+0x5e0/0x5e0 [ 461.955386] ? trace_hardirqs_on_caller+0x310/0x310 [ 461.960406] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 461.965425] ? recalc_sigpending_tsk+0x180/0x180 [ 461.970194] ? kasan_check_write+0x14/0x20 [ 461.974443] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 461.979301] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 461.984512] RIP: 0033:0x457579 [ 461.987720] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 462.006648] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 462.014371] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 462.021642] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 462.028911] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 462.036178] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 462.043449] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:24 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:24 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x80fe]}, 0x10) shutdown(r0, 0x1) 19:16:24 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x40030000000000]}, 0x10) shutdown(r0, 0x1) [ 462.076918] squashfs: SQUASHFS error: unable to read squashfs_super_block 19:16:24 executing program 4 (fault-call:2 fault-nth:43): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 462.200869] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 462.239115] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 462.251978] FAULT_INJECTION: forcing a failure. [ 462.251978] name failslab, interval 1, probability 0, space 0, times 0 [ 462.263951] CPU: 0 PID: 15834 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 462.271251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 462.280616] Call Trace: [ 462.283225] dump_stack+0x1c4/0x2b4 [ 462.286878] ? dump_stack_print_info.cold.2+0x52/0x52 [ 462.292082] ? kernel_text_address+0x79/0xf0 [ 462.296518] should_fail.cold.4+0xa/0x17 [ 462.300584] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 462.305688] ? graph_lock+0x170/0x170 [ 462.309481] ? save_stack+0xa9/0xd0 [ 462.313100] ? graph_lock+0x170/0x170 [ 462.316900] ? squashfs_read_table+0x9b/0x1ce [ 462.321397] ? squashfs_fill_super+0x15e/0x1743 [ 462.326069] ? mount_bdev+0x30c/0x3e0 [ 462.329860] ? squashfs_mount+0x34/0x40 [ 462.333827] ? mount_fs+0xae/0x31d [ 462.337377] ? vfs_kern_mount.part.35+0xdc/0x4f0 [ 462.342128] ? do_mount+0x581/0x31f0 [ 462.345835] ? ksys_mount+0x12d/0x140 [ 462.349629] ? find_held_lock+0x36/0x1c0 [ 462.353691] ? __lock_is_held+0xb5/0x140 [ 462.357766] ? ___might_sleep+0x1ed/0x300 [ 462.361920] ? arch_local_save_flags+0x40/0x40 [ 462.366511] __should_failslab+0x124/0x180 [ 462.370743] should_failslab+0x9/0x14 [ 462.374545] kmem_cache_alloc_trace+0x2d7/0x750 [ 462.379224] ? rcu_read_lock_sched_held+0x108/0x120 [ 462.384231] ? __kmalloc+0x5de/0x760 [ 462.387939] squashfs_page_actor_init+0x51/0x210 [ 462.392715] squashfs_read_table+0xc2/0x1ce [ 462.397028] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 462.402563] squashfs_fill_super+0x15e/0x1743 [ 462.407053] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 462.412101] ? set_blocksize+0x2c1/0x340 [ 462.416191] mount_bdev+0x30c/0x3e0 [ 462.419803] ? init_once+0x20/0x20 [ 462.423359] squashfs_mount+0x34/0x40 [ 462.427161] mount_fs+0xae/0x31d [ 462.430529] vfs_kern_mount.part.35+0xdc/0x4f0 [ 462.435103] ? may_umount+0xb0/0xb0 [ 462.438717] ? _raw_read_unlock+0x2c/0x50 [ 462.442852] ? __get_fs_type+0x97/0xc0 [ 462.446728] do_mount+0x581/0x31f0 [ 462.450259] ? copy_mount_string+0x40/0x40 [ 462.454486] ? copy_mount_options+0x5f/0x380 [ 462.458882] ? rcu_read_lock_sched_held+0x108/0x120 [ 462.463885] ? kmem_cache_alloc_trace+0x353/0x750 [ 462.468724] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 462.474267] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 462.479794] ? copy_mount_options+0x288/0x380 [ 462.484279] ksys_mount+0x12d/0x140 [ 462.487894] __x64_sys_mount+0xbe/0x150 [ 462.491860] do_syscall_64+0x1b9/0x820 [ 462.495737] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 462.501093] ? syscall_return_slowpath+0x5e0/0x5e0 [ 462.506013] ? trace_hardirqs_on_caller+0x310/0x310 [ 462.511019] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 462.516045] ? recalc_sigpending_tsk+0x180/0x180 [ 462.520789] ? kasan_check_write+0x14/0x20 [ 462.525016] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 462.529851] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 462.535026] RIP: 0033:0x457579 19:16:25 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs`', 0x0, &(0x7f0000000380)="231a2a2800") [ 462.538206] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 462.557096] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 462.564791] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 462.572046] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 462.579303] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 462.586577] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 462.593851] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 462.626006] squashfs: SQUASHFS error: unable to read squashfs_super_block 19:16:26 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:26 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xc0fe]}, 0x10) shutdown(r0, 0x1) [ 464.138106] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:27 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d03}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:27 executing program 4 (fault-call:2 fault-nth:44): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:27 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001800}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:27 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfsa', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:27 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$amidi(&(0x7f0000002a80)='/dev/amidi#\x00', 0x3, 0x189141) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000002ac0)=@req3={0x80000001, 0x8, 0x1, 0x5, 0x7f, 0x7fffffff, 0x1}, 0x1c) mount(&(0x7f00000000c0)=@sr0='/dev/sr0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2000000000000000]}, 0x10) shutdown(r0, 0x1) [ 464.657649] FAULT_INJECTION: forcing a failure. [ 464.657649] name failslab, interval 1, probability 0, space 0, times 0 [ 464.684406] CPU: 1 PID: 15858 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 464.691736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 464.701108] Call Trace: [ 464.703725] dump_stack+0x1c4/0x2b4 [ 464.707385] ? dump_stack_print_info.cold.2+0x52/0x52 [ 464.712613] should_fail.cold.4+0xa/0x17 [ 464.716695] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 464.721810] ? finish_task_switch+0x1f5/0x900 [ 464.726348] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 464.731832] ? compat_start_thread+0x80/0x80 [ 464.736263] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 464.741847] ? _raw_spin_unlock_irq+0x60/0x80 [ 464.746377] ? finish_task_switch+0x1f5/0x900 [ 464.750885] ? finish_task_switch+0x1b5/0x900 [ 464.755392] ? __switch_to_asm+0x34/0x70 [ 464.759468] ? preempt_notifier_register+0x200/0x200 [ 464.764589] ? __switch_to_asm+0x34/0x70 [ 464.768674] ? __switch_to_asm+0x34/0x70 [ 464.772739] ? __switch_to_asm+0x40/0x70 [ 464.776807] ? __switch_to_asm+0x34/0x70 [ 464.780876] ? __switch_to_asm+0x40/0x70 [ 464.780895] ? __switch_to_asm+0x34/0x70 [ 464.789007] ? __switch_to_asm+0x40/0x70 [ 464.789021] ? __switch_to_asm+0x34/0x70 [ 464.789042] ? print_usage_bug+0xc0/0xc0 [ 464.789055] ? __switch_to_asm+0x40/0x70 [ 464.789074] ? __switch_to_asm+0x34/0x70 [ 464.809351] ? __switch_to_asm+0x40/0x70 [ 464.813431] ? __schedule+0x874/0x1ed0 [ 464.817353] ? __sched_text_start+0x8/0x8 [ 464.821530] __should_failslab+0x124/0x180 [ 464.825785] should_failslab+0x9/0x14 [ 464.829603] kmem_cache_alloc_node+0x56/0x730 [ 464.834118] ? retint_kernel+0x2d/0x2d [ 464.838020] ? trace_hardirqs_on_caller+0xc0/0x310 [ 464.842964] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 464.847832] create_task_io_context+0xbd/0x600 [ 464.852454] ? ioc_clear_queue+0x610/0x610 19:16:27 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2]}, 0x10) shutdown(r0, 0x1) [ 464.856713] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 464.861488] ? retint_kernel+0x2d/0x2d [ 464.865414] generic_make_request_checks+0x1f2f/0x26c0 [ 464.870709] ? blk_queue_bypass_end+0x210/0x210 [ 464.875391] ? blk_queue_enter+0xb4e/0xe80 [ 464.879642] ? blk_exit_rl+0x80/0x80 [ 464.883371] ? save_stack+0x43/0xd0 [ 464.887012] ? kasan_kmalloc+0xc7/0xe0 [ 464.890917] ? kasan_slab_alloc+0x12/0x20 [ 464.895079] ? kmem_cache_alloc+0x12e/0x730 [ 464.899429] ? mempool_alloc_slab+0x44/0x60 [ 464.903766] ? mempool_alloc+0x193/0x4a0 [ 464.907902] ? bio_alloc_bioset+0x3a8/0x700 [ 464.912236] ? submit_bh_wbc+0x14b/0x790 [ 464.916307] ? ll_rw_block+0x1e5/0x220 [ 464.920214] ? squashfs_read_data+0x593/0x1950 [ 464.924806] ? squashfs_read_table+0x15b/0x1ce [ 464.929396] ? squashfs_fill_super+0x15e/0x1743 [ 464.934082] ? mark_held_locks+0x130/0x130 [ 464.938354] ? kasan_check_write+0x14/0x20 [ 464.942600] ? graph_lock+0x170/0x170 [ 464.946412] ? block_commit_write+0x30/0x30 [ 464.950752] ? graph_lock+0x170/0x170 19:16:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2c01000000000000]}, 0x10) shutdown(r0, 0x1) [ 464.954565] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 464.960126] ? check_preemption_disabled+0x48/0x200 [ 464.965154] ? check_preemption_disabled+0x48/0x200 [ 464.970187] ? __lock_is_held+0xb5/0x140 [ 464.974271] generic_make_request+0x2bd/0x15a0 [ 464.978877] ? blk_get_request+0x4e0/0x4e0 [ 464.983131] ? graph_lock+0x170/0x170 [ 464.983170] ? graph_lock+0x170/0x170 [ 464.983188] ? mempool_alloc_slab+0x44/0x60 [ 464.983206] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 464.983236] ? check_preemption_disabled+0x48/0x200 [ 464.983252] ? check_preemption_disabled+0x48/0x200 [ 464.983274] ? find_held_lock+0x36/0x1c0 [ 465.014867] ? guard_bio_eod+0x1f4/0x630 [ 465.018972] ? lock_downgrade+0x900/0x900 [ 465.023132] ? check_preemption_disabled+0x48/0x200 [ 465.028170] submit_bio+0xba/0x460 [ 465.031715] ? submit_bio+0xba/0x460 [ 465.035444] ? rcu_bh_qs+0xc0/0xc0 [ 465.039017] ? generic_make_request+0x15a0/0x15a0 [ 465.043889] ? __bio_add_page+0x134/0x290 [ 465.048063] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 465.053113] ? guard_bio_eod+0x2bb/0x630 [ 465.057209] submit_bh_wbc+0x5de/0x790 [ 465.061126] ll_rw_block+0x1e5/0x220 [ 465.064861] squashfs_read_data+0x593/0x1950 [ 465.069293] ? __lock_is_held+0xb5/0x140 [ 465.073401] ? jbd2_journal_put_journal_head.cold.55+0xdf/0xdf [ 465.079382] ? rcu_read_lock_sched_held+0x108/0x120 [ 465.084432] ? __kmalloc+0x5de/0x760 [ 465.088164] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 465.093717] squashfs_read_table+0x15b/0x1ce [ 465.098157] squashfs_fill_super+0x15e/0x1743 [ 465.102682] ? __sanitizer_cov_trace_cmp4+0x16/0x20 19:16:27 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667306", 0x0, &(0x7f0000000380)="231a2a2800") [ 465.107721] ? set_blocksize+0x2c1/0x340 [ 465.111807] mount_bdev+0x30c/0x3e0 [ 465.115449] ? init_once+0x20/0x20 [ 465.119015] squashfs_mount+0x34/0x40 [ 465.122878] mount_fs+0xae/0x31d [ 465.126272] vfs_kern_mount.part.35+0xdc/0x4f0 [ 465.130869] ? may_umount+0xb0/0xb0 [ 465.134508] ? _raw_read_unlock+0x2c/0x50 [ 465.138664] ? __get_fs_type+0x97/0xc0 [ 465.142570] do_mount+0x581/0x31f0 [ 465.146127] ? retint_kernel+0x1b/0x2d [ 465.150027] ? trace_hardirqs_on+0x310/0x310 [ 465.154457] ? copy_mount_string+0x40/0x40 [ 465.154478] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 465.154500] ? retint_kernel+0x2d/0x2d [ 465.154524] ? copy_mount_options+0x1f3/0x380 [ 465.154541] ? __sanitizer_cov_trace_pc+0x44/0x50 [ 465.154566] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 465.167444] ? copy_mount_options+0x288/0x380 [ 465.186798] ksys_mount+0x12d/0x140 [ 465.190447] __x64_sys_mount+0xbe/0x150 [ 465.194443] do_syscall_64+0x1b9/0x820 [ 465.198359] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 465.203740] ? syscall_return_slowpath+0x5e0/0x5e0 19:16:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xa]}, 0x10) shutdown(r0, 0x1) [ 465.208690] ? trace_hardirqs_on_caller+0x310/0x310 [ 465.213730] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 465.218758] ? recalc_sigpending_tsk+0x180/0x180 [ 465.223529] ? kasan_check_write+0x14/0x20 [ 465.227788] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 465.232656] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 465.237855] RIP: 0033:0x457579 [ 465.241517] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 19:16:27 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = syz_open_dev$audion(&(0x7f0000000140)='/dev/audio#\x00', 0x4, 0x20000) ioctl$TCSETSW(r0, 0x5403, &(0x7f0000000180)={0x6, 0x91, 0x7, 0x0, 0x39e2379f, 0x1000000000000000, 0x4, 0x9, 0x0, 0x8, 0x3, 0x7}) openat$kvm(0xffffffffffffff9c, &(0x7f0000000000)='/dev/kvm\x00', 0x80000, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) socket$inet(0x2, 0x5, 0x3) r1 = memfd_create(&(0x7f0000000040)='\x00', 0x3) write$P9_RUNLINKAT(r1, &(0x7f0000000100)={0x7, 0x4d, 0x2}, 0x7) mount(&(0x7f0000000280)=ANY=[@ANYBLOB="2f64657693ed47416c623000e6dbe2e1e49f80847847bb33b5522e11edf9d2b5fceacbf83b5d5c26ab734520"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") r2 = shmget$private(0x0, 0x2000, 0x18, &(0x7f0000ffc000/0x2000)=nil) setsockopt$inet6_IPV6_ADDRFORM(r0, 0x29, 0x1, &(0x7f00000001c0), 0x4) shmctl$IPC_INFO(r2, 0x3, &(0x7f0000000200)=""/82) [ 465.260435] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 465.268168] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 465.275450] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 465.282729] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 465.290012] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 465.297293] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 19:16:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 465.347667] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 465.480049] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 465.502428] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:30 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000300}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:30 executing program 4 (fault-call:2 fault-nth:45): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:30 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfc]}, 0x10) shutdown(r0, 0x1) 19:16:30 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:30 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:30 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d08}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 467.762417] FAULT_INJECTION: forcing a failure. [ 467.762417] name failslab, interval 1, probability 0, space 0, times 0 [ 467.792273] CPU: 0 PID: 15914 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 467.799599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 467.808965] Call Trace: [ 467.811577] dump_stack+0x1c4/0x2b4 [ 467.815246] ? dump_stack_print_info.cold.2+0x52/0x52 [ 467.820460] ? graph_lock+0x170/0x170 [ 467.824291] should_fail.cold.4+0xa/0x17 [ 467.828383] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 467.833510] ? find_held_lock+0x36/0x1c0 [ 467.837608] ? mark_held_locks+0xc7/0x130 [ 467.841769] ? lock_downgrade+0x900/0x900 [ 467.845930] ? __find_get_block+0xba8/0xf20 [ 467.850269] ? __find_get_block+0xba8/0xf20 [ 467.854616] ? lockdep_hardirqs_on+0x421/0x5c0 [ 467.859215] ? kasan_check_write+0x14/0x20 [ 467.863464] ? graph_lock+0x170/0x170 [ 467.867278] ? block_commit_write+0x30/0x30 [ 467.871627] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 467.877189] ? check_preemption_disabled+0x48/0x200 [ 467.882240] ? __lock_is_held+0xb5/0x140 [ 467.886352] __should_failslab+0x124/0x180 [ 467.890618] ? mempool_free+0x370/0x370 [ 467.894618] should_failslab+0x9/0x14 [ 467.898433] kmem_cache_alloc+0x47/0x730 [ 467.902516] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 467.907122] ? mempool_free+0x370/0x370 [ 467.911113] mempool_alloc_slab+0x44/0x60 [ 467.915283] mempool_alloc+0x193/0x4a0 [ 467.919186] ? __getblk_gfp+0x11b/0xd50 [ 467.923193] ? mempool_destroy+0x30/0x30 [ 467.927273] ? __find_get_block+0xf20/0xf20 [ 467.931616] ? graph_lock+0x170/0x170 [ 467.935448] ? check_preemption_disabled+0x48/0x200 [ 467.940493] bio_alloc_bioset+0x3a8/0x700 [ 467.944668] ? bvec_alloc+0x2d0/0x2d0 [ 467.948504] submit_bh_wbc+0x14b/0x790 [ 467.952415] ll_rw_block+0x1e5/0x220 [ 467.956160] squashfs_read_data+0x593/0x1950 [ 467.960604] ? __lock_is_held+0xb5/0x140 [ 467.964706] ? jbd2_journal_put_journal_head.cold.55+0xdf/0xdf [ 467.970694] ? rcu_read_lock_sched_held+0x108/0x120 [ 467.975735] ? __kmalloc+0x5de/0x760 [ 467.979477] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 467.985037] squashfs_read_table+0x15b/0x1ce [ 467.989483] squashfs_fill_super+0x15e/0x1743 [ 467.994008] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 467.999046] ? set_blocksize+0x2c1/0x340 [ 468.003141] mount_bdev+0x30c/0x3e0 [ 468.006788] ? init_once+0x20/0x20 [ 468.010362] squashfs_mount+0x34/0x40 [ 468.014191] mount_fs+0xae/0x31d [ 468.017588] vfs_kern_mount.part.35+0xdc/0x4f0 [ 468.022207] ? may_umount+0xb0/0xb0 [ 468.025860] ? _raw_read_unlock+0x2c/0x50 [ 468.030032] ? __get_fs_type+0x97/0xc0 [ 468.033934] do_mount+0x581/0x31f0 [ 468.037472] ? copy_mount_string+0x40/0x40 [ 468.041707] ? copy_mount_options+0x5f/0x380 [ 468.046114] ? rcu_read_lock_sched_held+0x108/0x120 [ 468.051128] ? kmem_cache_alloc_trace+0x353/0x750 [ 468.055970] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 468.061503] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 468.067033] ? copy_mount_options+0x288/0x380 [ 468.071532] ksys_mount+0x12d/0x140 [ 468.075159] __x64_sys_mount+0xbe/0x150 [ 468.079132] do_syscall_64+0x1b9/0x820 [ 468.083011] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 468.088441] ? syscall_return_slowpath+0x5e0/0x5e0 [ 468.093400] ? trace_hardirqs_on_caller+0x310/0x310 [ 468.098421] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 468.103444] ? recalc_sigpending_tsk+0x180/0x180 [ 468.108209] ? kasan_check_write+0x14/0x20 [ 468.112462] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 468.117361] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 468.122560] RIP: 0033:0x457579 [ 468.125744] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 468.144641] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 468.152360] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 19:16:30 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x100000000000000]}, 0x10) shutdown(r0, 0x1) [ 468.159638] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 468.166898] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 468.174188] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 468.181455] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 468.193475] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 468.214308] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 468.245731] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:30 executing program 4 (fault-call:2 fault-nth:46): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 468.278430] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 468.323152] FAULT_INJECTION: forcing a failure. [ 468.323152] name failslab, interval 1, probability 0, space 0, times 0 [ 468.341458] CPU: 0 PID: 15929 Comm: syz-executor4 Not tainted 4.19.0-rc6+ #42 [ 468.348758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 468.358132] Call Trace: [ 468.360739] dump_stack+0x1c4/0x2b4 [ 468.364398] ? dump_stack_print_info.cold.2+0x52/0x52 [ 468.369615] ? print_usage_bug+0xc0/0xc0 [ 468.373705] should_fail.cold.4+0xa/0x17 [ 468.377793] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 468.382922] ? __lock_acquire+0x7ec/0x4ec0 [ 468.387177] ? find_get_entry+0x2f2/0xc40 [ 468.391354] ? mark_held_locks+0x130/0x130 [ 468.395620] ? print_usage_bug+0xc0/0xc0 [ 468.399711] ? add_to_page_cache_lru+0x10b0/0x10b0 [ 468.404678] ? find_held_lock+0x36/0x1c0 [ 468.408766] ? graph_lock+0x170/0x170 [ 468.412586] ? __lock_acquire+0x7ec/0x4ec0 [ 468.416846] ? lock_downgrade+0x900/0x900 [ 468.421012] ? check_preemption_disabled+0x48/0x200 [ 468.426071] __should_failslab+0x124/0x180 [ 468.430319] should_failslab+0x9/0x14 [ 468.434147] kmem_cache_alloc_node+0x56/0x730 [ 468.438649] ? graph_lock+0x170/0x170 [ 468.442458] ? graph_lock+0x170/0x170 [ 468.446282] create_task_io_context+0xbd/0x600 [ 468.450876] ? ioc_clear_queue+0x610/0x610 [ 468.455140] ? ___might_sleep+0x1ed/0x300 [ 468.459305] ? arch_local_save_flags+0x40/0x40 [ 468.463909] ? rcu_read_unlock+0x37/0xa0 [ 468.467981] ? lock_downgrade+0x900/0x900 [ 468.472141] ? check_preemption_disabled+0x48/0x200 [ 468.477189] generic_make_request_checks+0x1f2f/0x26c0 [ 468.482494] ? blk_queue_bypass_end+0x210/0x210 [ 468.487169] ? blk_queue_enter+0xb4e/0xe80 [ 468.491425] ? blk_exit_rl+0x80/0x80 [ 468.495144] ? save_stack+0x43/0xd0 [ 468.498774] ? kasan_kmalloc+0xc7/0xe0 [ 468.502670] ? kasan_slab_alloc+0x12/0x20 [ 468.506828] ? kmem_cache_alloc+0x12e/0x730 [ 468.511156] ? mempool_alloc_slab+0x44/0x60 [ 468.515482] ? mempool_alloc+0x193/0x4a0 [ 468.519565] ? bio_alloc_bioset+0x3a8/0x700 [ 468.523910] ? submit_bh_wbc+0x14b/0x790 [ 468.527977] ? ll_rw_block+0x1e5/0x220 [ 468.531875] ? squashfs_read_data+0x593/0x1950 [ 468.536467] ? squashfs_read_table+0x15b/0x1ce [ 468.541056] ? squashfs_fill_super+0x15e/0x1743 [ 468.545747] ? mark_held_locks+0x130/0x130 [ 468.549993] ? trace_hardirqs_on+0xbd/0x310 [ 468.554345] ? graph_lock+0x170/0x170 [ 468.558174] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 468.563638] ? graph_lock+0x170/0x170 [ 468.567458] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 468.573007] ? check_preemption_disabled+0x48/0x200 [ 468.578035] ? check_preemption_disabled+0x48/0x200 [ 468.583076] ? __lock_is_held+0xb5/0x140 [ 468.587160] generic_make_request+0x2bd/0x15a0 [ 468.591763] ? blk_get_request+0x4e0/0x4e0 [ 468.596003] ? graph_lock+0x170/0x170 [ 468.599812] ? graph_lock+0x170/0x170 [ 468.603648] ? mempool_alloc_slab+0x44/0x60 [ 468.607981] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 468.613532] ? check_preemption_disabled+0x48/0x200 [ 468.618556] ? check_preemption_disabled+0x48/0x200 [ 468.623632] ? find_held_lock+0x36/0x1c0 [ 468.627744] ? guard_bio_eod+0x1f4/0x630 [ 468.631824] ? lock_downgrade+0x900/0x900 [ 468.636000] ? check_preemption_disabled+0x48/0x200 [ 468.641038] submit_bio+0xba/0x460 [ 468.644587] ? submit_bio+0xba/0x460 [ 468.648315] ? rcu_bh_qs+0xc0/0xc0 [ 468.651884] ? generic_make_request+0x15a0/0x15a0 [ 468.656735] ? __bio_add_page+0x134/0x290 [ 468.660898] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 468.665926] ? guard_bio_eod+0x2bb/0x630 [ 468.670003] submit_bh_wbc+0x5de/0x790 [ 468.673912] ll_rw_block+0x1e5/0x220 [ 468.677643] squashfs_read_data+0x593/0x1950 [ 468.682067] ? __lock_is_held+0xb5/0x140 [ 468.686161] ? jbd2_journal_put_journal_head.cold.55+0xdf/0xdf [ 468.692148] ? rcu_read_lock_sched_held+0x108/0x120 [ 468.697181] ? __kmalloc+0x5de/0x760 [ 468.700911] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 468.706469] squashfs_read_table+0x15b/0x1ce [ 468.710902] squashfs_fill_super+0x15e/0x1743 [ 468.715410] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 468.720437] ? set_blocksize+0x2c1/0x340 [ 468.724527] mount_bdev+0x30c/0x3e0 [ 468.728164] ? init_once+0x20/0x20 [ 468.731726] squashfs_mount+0x34/0x40 [ 468.735544] mount_fs+0xae/0x31d [ 468.738932] vfs_kern_mount.part.35+0xdc/0x4f0 [ 468.743530] ? may_umount+0xb0/0xb0 [ 468.747168] ? _raw_read_unlock+0x2c/0x50 [ 468.751337] ? __get_fs_type+0x97/0xc0 [ 468.755422] do_mount+0x581/0x31f0 [ 468.758969] ? retint_kernel+0x1b/0x2d [ 468.762871] ? trace_hardirqs_on+0x310/0x310 [ 468.767297] ? copy_mount_string+0x40/0x40 [ 468.771550] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 468.776355] ? retint_kernel+0x2d/0x2d [ 468.780268] ? copy_mount_options+0x1a1/0x380 [ 468.784777] ? __sanitizer_cov_trace_pc+0x48/0x50 [ 468.789637] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 468.795185] ? copy_mount_options+0x288/0x380 [ 468.799700] ksys_mount+0x12d/0x140 [ 468.803355] __x64_sys_mount+0xbe/0x150 [ 468.807359] do_syscall_64+0x1b9/0x820 [ 468.811260] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 468.816642] ? syscall_return_slowpath+0x5e0/0x5e0 [ 468.821585] ? trace_hardirqs_on_caller+0x310/0x310 [ 468.826625] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 468.831654] ? recalc_sigpending_tsk+0x180/0x180 [ 468.836420] ? kasan_check_write+0x14/0x20 [ 468.840674] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 468.845543] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 468.850743] RIP: 0033:0x457579 [ 468.853946] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 19:16:30 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:31 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:31 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xf00]}, 0x10) shutdown(r0, 0x1) [ 468.872869] RSP: 002b:00007fcf5c032c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 468.880608] RAX: ffffffffffffffda RBX: 00007fcf5c032c90 RCX: 0000000000457579 [ 468.887882] RDX: 0000000020000340 RSI: 0000000020000300 RDI: 00000000200000c0 [ 468.895160] RBP: 000000000072bf00 R08: 0000000020000380 R09: 0000000000000000 [ 468.902437] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcf5c0336d4 [ 468.909714] R13: 00000000004c28af R14: 00000000004d3c78 R15: 0000000000000004 [ 468.938383] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:31 executing program 4 (fault-call:2 fault-nth:47): mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 469.018413] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 469.117728] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 469.131742] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 469.142790] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:33 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000f00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x6]}, 0x10) shutdown(r0, 0x1) 19:16:33 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001200}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 470.823321] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 470.865767] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x8000000000]}, 0x10) shutdown(r0, 0x1) 19:16:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='Tdev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 0: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='//ev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xf000000]}, 0x10) shutdown(r0, 0x1) [ 471.167384] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:36 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0f}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:36 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\t', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/0ev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 0: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x3000000]}, 0x10) shutdown(r0, 0x1) 19:16:36 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0b}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f9c65762f6e756c6c623000", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 473.903917] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:36 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfc00]}, 0x10) shutdown(r0, 0x1) 19:16:36 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731c", 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 0: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/\nev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:36 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xf00000000000000]}, 0x10) shutdown(r0, 0x1) [ 474.150447] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:39 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000900}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/%ev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x400000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:39 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d06}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 476.951183] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 476.970769] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/.ev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 477.002652] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:39 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x3f000000]}, 0x10) shutdown(r0, 0x1) 19:16:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/d\nv/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/d%v/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 477.272052] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 477.313001] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:42 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0a}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:42 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2000000]}, 0x10) shutdown(r0, 0x1) 19:16:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/devTnullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:42 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:42 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001100}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/\nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xff00]}, 0x10) shutdown(r0, 0x1) 19:16:42 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r1 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r1, &(0x7f0000000000)={&(0x7f0000000080)={0x10, 0x34003}, 0xc, &(0x7f0000000040)={&(0x7f0000001e00)={0x14, 0x28, 0x829, 0x0, 0x0, {0x3}}, 0x14}}, 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 480.087324] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/%ullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 480.171735] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:42 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/.ullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 480.342702] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:45 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000002}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:45 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xff00000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev//ullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:45 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:45 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d03}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/ndllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 483.085506] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 483.119515] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfc00000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:45 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667302", 0x0, &(0x7f0000000380)="231a2a2800") [ 483.150148] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nillb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:45 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/npllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 483.359002] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:48 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0d}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xff000000]}, 0x10) shutdown(r0, 0x1) 19:16:48 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nlllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:48 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:48 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d04}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 486.187397] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/ncllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 486.261203] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2c010000]}, 0x10) shutdown(r0, 0x1) 19:16:49 executing program 0: r0 = perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(r0, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 486.324782] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:49 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:49 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nxllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 486.413070] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:49 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(0xffffffffffffffff, 0x2401, 0xffffffff) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 486.524590] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 486.551697] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 486.591999] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:51 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d05}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x2c01]}, 0x10) shutdown(r0, 0x1) 19:16:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/n\nllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:51 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(0xffffffffffffffff, 0x2401, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:51 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:51 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0e}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 489.231973] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/n%llb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 489.278409] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:51 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(0xffffffffffffffff, 0x2401, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 489.323217] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:52 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0xfec0000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:52 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nollb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:52 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f5", 0x0, &(0x7f0000000380)="231a2a2800") [ 489.388511] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:52 executing program 0: socket$nl_generic(0x10, 0x3, 0x10) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) ioctl$PERF_EVENT_IOC_DISABLE(0xffffffffffffffff, 0x2401, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 489.529137] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:54 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000003500}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:54 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nsllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:54 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2c01000000000000]}, 0x10) shutdown(r0, 0x1) 19:16:54 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:54 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:54 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d05}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nXllb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 492.347711] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 492.381179] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 492.409410] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:55 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:55 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x40030000000000]}, 0x10) shutdown(r0, 0x1) 19:16:55 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nu%lb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nu.lb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 492.602064] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 492.620854] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 492.666645] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:57 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001800}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:16:57 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0b}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x4000]}, 0x10) shutdown(r0, 0x1) 19:16:57 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nuLlb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:57 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000f00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:16:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nuulb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 495.438151] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:58 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfc]}, 0x10) shutdown(r0, 0x1) 19:16:58 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 495.491260] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nu\nlb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:16:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nul.b0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 495.615602] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:16:58 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x40000000]}, 0x10) shutdown(r0, 0x1) [ 495.657384] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:01 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d04}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:01 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nulLb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:01 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfe80]}, 0x10) shutdown(r0, 0x1) 19:17:01 executing program 0: socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000040)) openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140)='/dev/ptmx\x00', 0x0, 0x0) r0 = openat$tun(0xffffffffffffff9c, &(0x7f00000001c0)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000000)={"766574000000000000000000bd6800", 0x43732e5398416f1a}) r1 = socket$nl_route(0x10, 0x3, 0x0) pread64(r0, &(0x7f0000000340)=""/39, 0x27, 0x0) sendmsg$nl_route(r1, &(0x7f0000000140)={&(0x7f00000000c0), 0xc, &(0x7f0000000100)={&(0x7f0000000180)=@newlink={0x28, 0x10, 0xc362e63b3f31ba5f, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x3}, [@IFLA_GROUP={0x8}]}, 0x28}}, 0x0) pread64(0xffffffffffffffff, &(0x7f00000006c0)=""/4096, 0x1000, 0x0) 19:17:01 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001400}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nulub0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 498.499392] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 498.539584] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 498.564698] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 498.577035] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready 19:17:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nul\nb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:01 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfffffffe]}, 0x10) shutdown(r0, 0x1) 19:17:01 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nul%b0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 498.775390] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:01 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x4]}, 0x10) shutdown(r0, 0x1) [ 498.820673] IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready [ 498.905227] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:04 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d07}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:04 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/null\n0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:04 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs.', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:04 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x4000000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:04 executing program 0: clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, &(0x7f0000002e80), 0xffffffffffffffff) r0 = syz_open_dev$usb(&(0x7f0000000280)='/dev/bus/usb/00#/00#\x00', 0x40000fffffd, 0x2) ioctl$FS_IOC_FSGETXATTR(r0, 0xc0185500, &(0x7f0000000000)={0xa1, 0x7400}) 19:17:04 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0d}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:04 executing program 0: clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, &(0x7f0000002e80), 0xffffffffffffffff) r0 = syz_open_dev$usb(&(0x7f0000000280)='/dev/bus/usb/00#/00#\x00', 0x40000fffffd, 0x2) ioctl$FS_IOC_FSGETXATTR(r0, 0xc0185500, &(0x7f0000000000)={0xa1, 0x7400}) 19:17:04 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 501.543488] usb usb7: usbfs: process 16420 (syz-executor0) did not claim interface 0 before use [ 501.581203] usb usb7: usbfs: process 16434 (syz-executor0) did not claim interface 0 before use 19:17:04 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/null%0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:04 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfec00000]}, 0x10) shutdown(r0, 0x1) [ 501.696566] usb usb7: usbfs: process 16441 (syz-executor0) did not claim interface 0 before use 19:17:04 executing program 0: clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, &(0x7f0000002e80), 0xffffffffffffffff) r0 = syz_open_dev$usb(&(0x7f0000000280)='/dev/bus/usb/00#/00#\x00', 0x40000fffffd, 0x2) ioctl$FS_IOC_FSGETXATTR(r0, 0xc0185500, &(0x7f0000000000)={0xa1, 0x7400}) 19:17:04 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb%\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 501.761512] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 501.804244] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 501.837296] usb usb7: usbfs: process 16456 (syz-executor0) did not claim interface 0 before use 19:17:07 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x11000000]}, 0x10) shutdown(r0, 0x1) 19:17:07 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:07 executing program 0: clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, &(0x7f0000002e80), 0xffffffffffffffff) r0 = syz_open_dev$usb(&(0x7f0000000280)='/dev/bus/usb/00#/00#\x00', 0x40000fffffd, 0x2) ioctl$FS_IOC_FSGETXATTR(r0, 0xc0185500, &(0x7f0000000000)={0xa1, 0x7400}) 19:17:07 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d08}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb-\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:07 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d02}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:07 executing program 0: perf_event_open(&(0x7f000001d000)={0x2, 0x70, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0x0, 0xffffffffffffffff, 0x0) clone(0x31000000, &(0x7f00000000c0), &(0x7f0000000000), &(0x7f0000000040), &(0x7f0000000180)) [ 504.569598] usb usb7: usbfs: process 16467 (syz-executor0) did not claim interface 0 before use 19:17:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullbd\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 504.663116] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb+\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 504.707487] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:07 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xff000000]}, 0x10) shutdown(r0, 0x1) 19:17:07 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullbT\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:07 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) r1 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uinput\x00', 0x0, 0x0) ioctl$UI_ABS_SETUP(r1, 0x401c5504, &(0x7f0000000040)={0x0, {0x0, 0x0, 0x0, 0x0, 0x3f000000}}) 19:17:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62ffff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:07 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x3f000000]}, 0x10) shutdown(r0, 0x1) 19:17:10 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001200}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:10 executing program 0: r0 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r0, &(0x7f00000000c0)={0xa, 0x0, 0x0, @local, 0x7}, 0x1c) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r2, &(0x7f000014f000)={&(0x7f00003c7ff4), 0xc, &(0x7f00000bfff0)={&(0x7f0000006440)=@updpolicy={0xb8, 0x19, 0x1, 0x0, 0x0, {{@in6=@mcast1, @in=@multicast1, 0x0, 0x0, 0x0, 0x0, 0xa}}}, 0x51a}}, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x10, &(0x7f0000000200)={@dev}, 0x20) 19:17:10 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d11}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:10 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb\n\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:10 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:10 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x4000000]}, 0x10) shutdown(r0, 0x1) 19:17:10 executing program 0: sendmsg(0xffffffffffffffff, &(0x7f0000000080)={&(0x7f0000000380)=@pptp={0x18, 0x2, {0x0, @multicast1}}, 0x80, &(0x7f0000000980), 0x0, &(0x7f0000000400)}, 0x0) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000080)={'veth1\x00', 0x3}) socket$unix(0x1, 0x0, 0x0) r0 = syz_open_procfs(0x0, &(0x7f0000000080)='ns\x00') getdents(r0, &(0x7f0000000000)=""/46, 0x152) socketpair(0x1, 0x5, 0x0, &(0x7f0000000740)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_SET_FILTER(r1, 0x89f1, &(0x7f0000000080)='ip6tnl0\x00') 19:17:10 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb#\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 507.754028] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:10 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x11]}, 0x10) shutdown(r0, 0x1) 19:17:10 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 507.824895] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:10 executing program 0: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu/syz1\x00', 0x200002, 0x0) r1 = openat$cgroup_procs(r0, &(0x7f0000000180)='cgroup.procs\x00', 0x2, 0x0) write$cgroup_pid(r1, &(0x7f00000000c0), 0x12) 19:17:10 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\n', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:13 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000600}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 510.672410] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 510.683443] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:13 executing program 0: recvmmsg(0xffffffffffffffff, &(0x7f0000003140)=[{{&(0x7f0000000040)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @local}}}, 0x80, &(0x7f0000000180)=[{&(0x7f0000000400)=""/4096, 0x1000}], 0x1}}], 0x1, 0x0, &(0x7f0000003280)={0x77359400}) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000300)="6e65742f756470005b3d5b71628c4c4d7aebee67804b0e270588ff2a5a6c192e91691527290d6c68dc3d993f616ca618c033d2b9dd622f3eebe69c6054a3e37d69feec7f2383f665bb43014fd13cbd86508626ea44e48a1781f37e4f84a6b55ebe5143f9a401b3b0347aa10db7a720a284bc3b413cdca32fd607a6702451ec46b1b9a5eb59311c8c5ff142ee8ecf9b16cb7e669cc0b4fdf5c60dfc0ae59b670b0810ce3525c73027fc80753b75115eee3f84c8db2d85000000000000000000000000000000000000") r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) r1 = socket$inet_tcp(0x2, 0x1, 0x0) getsockopt$IPT_SO_GET_INFO(r1, 0x0, 0x40, &(0x7f0000000000)={'raw\x00'}, &(0x7f0000000080)=0x54) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000001d80)={'gre0\x00', 0x0}) bind$bt_hci(r0, &(0x7f0000000040)={0x1f, r2}, 0x58) clock_gettime(0x0, &(0x7f0000002900)={0x0, 0x0}) recvmmsg(r0, &(0x7f00000027c0), 0x40004c3, 0x1ba, &(0x7f0000002940)={0x0, r3+10000000}) write$binfmt_elf64(r0, &(0x7f00000000c0)=ANY=[@ANYBLOB="7f454c5f720000000000000000000000000000090000000000000000000000004000000000003abf4ff0a8612ba4000000000000000038000000000000000000000000000000eeff000000000000000000000000000000000000000ef400000001000000000000000000000000000000000000000000dc00"], 0x78) 19:17:13 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x500]}, 0x10) shutdown(r0, 0x1) 19:17:13 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:13 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000a00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230fa", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62307f", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:13 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x6]}, 0x10) shutdown(r0, 0x1) 19:17:13 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 511.035556] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 511.046721] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 511.062859] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:13 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x3f00]}, 0x10) shutdown(r0, 0x1) [ 511.079322] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:16 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000a00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:16 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:16 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:16 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x34000]}, 0x10) shutdown(r0, 0x1) 19:17:16 executing program 0: recvmmsg(0xffffffffffffffff, &(0x7f0000003140)=[{{&(0x7f0000000040)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff, {0x2, 0x0, @local}}}, 0x80, &(0x7f0000000180)=[{&(0x7f0000000400)=""/4096, 0x1000}], 0x1}}], 0x1, 0x0, &(0x7f0000003280)={0x77359400}) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000300)="6e65742f756470005b3d5b71628c4c4d7aebee67804b0e270588ff2a5a6c192e91691527290d6c68dc3d993f616ca618c033d2b9dd622f3eebe69c6054a3e37d69feec7f2383f665bb43014fd13cbd86508626ea44e48a1781f37e4f84a6b55ebe5143f9a401b3b0347aa10db7a720a284bc3b413cdca32fd607a6702451ec46b1b9a5eb59311c8c5ff142ee8ecf9b16cb7e669cc0b4fdf5c60dfc0ae59b670b0810ce3525c73027fc80753b75115eee3f84c8db2d85000000000000000000000000000000000000") r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) r1 = socket$inet_tcp(0x2, 0x1, 0x0) getsockopt$IPT_SO_GET_INFO(r1, 0x0, 0x40, &(0x7f0000000000)={'raw\x00'}, &(0x7f0000000080)=0x54) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000001d80)={'gre0\x00', 0x0}) bind$bt_hci(r0, &(0x7f0000000040)={0x1f, r2}, 0x58) clock_gettime(0x0, &(0x7f0000002900)={0x0, 0x0}) recvmmsg(r0, &(0x7f00000027c0), 0x40004c3, 0x1ba, &(0x7f0000002940)={0x0, r3+10000000}) write$binfmt_elf64(r0, &(0x7f00000000c0)=ANY=[@ANYBLOB="7f454c5f720000000000000000000000000000090000000000000000000000004000000000003abf4ff0a8612ba4000000000000000038000000000000000000000000000000eeff000000000000000000000000000000000000000ef400000001000000000000000000000000000000000000000000dc00"], 0x78) [ 513.704737] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 513.731206] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:16 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000500}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:16 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:16 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:16 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x500000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:16 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 513.901542] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 513.932022] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:16 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfsc', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:16 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xff00000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:19 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d02}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:19 executing program 0: syz_mount_image$btrfs(&(0x7f0000000040)='btrfs\x00', &(0x7f0000000080)='./file0\x00', 0x0, 0x0, &(0x7f0000000280), 0x0, &(0x7f00000002c0)) r0 = open$dir(&(0x7f0000000000)='./file0\x00', 0x9190be7703d9cf0f, 0x0) r1 = open$dir(&(0x7f0000000540)='./file0\x00', 0x0, 0x0) linkat(r0, &(0x7f0000000500)='\x00', r1, &(0x7f0000000580)='./file0\x00', 0x1400) 19:17:19 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\b', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:19 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfec0]}, 0x10) shutdown(r0, 0x1) [ 516.747815] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 516.785073] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:19 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d10}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:19 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:19 executing program 0: r0 = openat$audio(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/audio\x00', 0x0, 0x0) ioctl$int_in(r0, 0x800000c0045005, &(0x7f0000000040)=0x1f40) 19:17:19 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xff00]}, 0x10) shutdown(r0, 0x1) [ 516.996351] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 517.051816] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 517.078046] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:19 executing program 0: r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000100)='/dev/fuse\x00', 0x2, 0x0) mkdir(&(0x7f0000000240)="131377c5fc35d41454d5d41d29ad1a6029598146e6be166e41ad0dbd4054033c9f33bbda8224a2f3d772e7636e48b33cbf708372e8f1b9933ec5127743be2206209ef02df9cbf2f6e880d3382f00", 0x0) rename(&(0x7f00000001c0)="131377c5fc35d41454d5d41d29ad1a6029598146e6be166e41ad0dbd4054033c9f33bbda8224a2f3d772e7636e48b33cbf708372e8f1b9933ec5127743be2206209ef02df9cbf2f6e880d3382f00", &(0x7f0000000040)='./file0\x00') mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000300)='fuse\x00', 0x0, &(0x7f0000000640)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x4000}, 0x2c, {'user_id'}, 0x2c, {'group_id'}}) poll(&(0x7f00000005c0)=[{r0}], 0x1, 0x0) 19:17:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 517.098579] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 517.195248] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 517.217375] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:22 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0b}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xf00000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:22 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:22 executing program 0: r0 = socket$inet6(0xa, 0x3, 0x800000000000004) ioctl(r0, 0x8912, &(0x7f0000000280)="153f6234488dd25d5c6070") r1 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r1, &(0x7f0000000100)={&(0x7f00000000c0)={0x20000010, 0x6000000000000000}, 0xc, &(0x7f0000000000)={&(0x7f00000001c0)=@newlink={0x20, 0x10, 0xc362e63b3f31ba5f}, 0x20}}, 0x0) 19:17:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 519.867804] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 519.897821] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 519.920375] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 519.974155] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:22 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000002}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:22 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfsc', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x400000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:22 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 520.091198] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 520.120695] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 520.131910] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:22 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb\n\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:22 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 520.154503] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 520.304685] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 520.327994] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:25 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d0e}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:25 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfeffffff00000000]}, 0x10) shutdown(r0, 0x1) 19:17:25 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:25 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 522.975692] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.006270] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.034269] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.047841] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.058357] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:25 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:25 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:25 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfeffffff]}, 0x10) shutdown(r0, 0x1) 19:17:25 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 523.167172] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 523.220718] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.235564] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:25 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xdc05000000000000]}, 0x10) shutdown(r0, 0x1) [ 523.294774] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.359227] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.391546] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 523.400454] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfeffffff00000000]}, 0x10) shutdown(r0, 0x1) 19:17:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000500}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:28 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x8000000000]}, 0x10) shutdown(r0, 0x1) [ 526.050947] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 526.100481] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 526.120312] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 526.149289] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673eb", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\b', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x3000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:28 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x100000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0)', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623003", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 526.296237] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:29 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:29 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2000]}, 0x10) shutdown(r0, 0x1) [ 526.389318] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 526.446030] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 526.502676] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:31 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x4000]}, 0x10) shutdown(r0, 0x1) 19:17:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:31 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:31 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d10}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:31 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xc0fe]}, 0x10) shutdown(r0, 0x1) [ 529.155861] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 529.181706] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:31 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x300}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:31 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xf000000]}, 0x10) shutdown(r0, 0x1) 19:17:31 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xc0fe]}, 0x10) shutdown(r0, 0x1) 19:17:31 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 529.369114] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 529.380324] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 529.408351] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:32 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:32 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 529.420815] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:32 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x1100]}, 0x10) shutdown(r0, 0x1) 19:17:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62307f", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 529.569823] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 529.612550] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 529.648090] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:34 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x80fe]}, 0x10) shutdown(r0, 0x1) 19:17:34 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731c", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1100}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:35 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001100}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:35 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673c0", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0%', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x400300]}, 0x10) shutdown(r0, 0x1) 19:17:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0+', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2000000]}, 0x10) shutdown(r0, 0x1) 19:17:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230eb", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\n', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 532.630160] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 532.665884] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 532.688212] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:38 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x8}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:38 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfe80000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:38 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d06}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 535.490463] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 535.519989] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:38 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 535.540582] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 535.561113] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 535.572502] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xf]}, 0x10) shutdown(r0, 0x1) 19:17:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs`', 0x0, &(0x7f0000000380)="231a2a2800") [ 535.724548] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 535.736163] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 535.761799] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:38 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0xfffffffe, 0x100000000000d00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2]}, 0x10) shutdown(r0, 0x1) 19:17:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\a', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:41 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000b00}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667305", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xffffffff00000000]}, 0x10) shutdown(r0, 0x1) [ 538.628501] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 538.679684] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 538.765071] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 538.785666] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:41 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) r0 = syz_open_dev$mice(&(0x7f0000000100)='/dev/input/mice\x00', 0x0, 0x101800) getsockopt$bt_l2cap_L2CAP_CONNINFO(r0, 0x6, 0x2, &(0x7f0000000180), &(0x7f00000001c0)=0x6) connect$llc(r0, &(0x7f0000000140)={0x1a, 0x308, 0xfffffffffffffff9, 0x1, 0x401, 0xd33e, @random="a1d1d144725d"}, 0x10) r1 = syz_open_dev$mice(&(0x7f0000000040)='/dev/input/mice\x00', 0x0, 0x101800) fcntl$setlease(r1, 0x400, 0x1) r2 = perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0xe, 0x0, 0xffff, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$PERF_EVENT_IOC_SET_FILTER(r2, 0x40082406, &(0x7f0000000000)='squashfs\x00') setsockopt$SO_RDS_MSG_RXPATH_LATENCY(r1, 0x114, 0xa, &(0x7f0000000200)={0x1, "f7"}, 0x2) ioctl$PERF_EVENT_IOC_PAUSE_OUTPUT(r2, 0x40042409, 0x1) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfec0000000000000]}, 0x10) shutdown(r0, 0x1) [ 538.858326] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") [ 538.908666] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 539.070575] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xa00000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:44 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x20000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:44 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000001400}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:44 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 541.603473] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 541.639084] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x1000000]}, 0x10) shutdown(r0, 0x1) 19:17:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230fb", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 541.688453] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:44 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0)=0x0, &(0x7f0000000200)=0x0) getgroups(0x4, &(0x7f0000000240)=[0xee00, 0x0, 0xffffffffffffffff, 0xee00]) write$FUSE_CREATE_OPEN(r0, &(0x7f00000003c0)={0xa0, 0x0, 0x2, {{0x5, 0x0, 0x4, 0x80000001, 0x6, 0x1ff, {0x4, 0x8001, 0x3ff, 0x401, 0x4, 0xfffffffffffffffb, 0x7, 0x5, 0x5, 0x1, 0x8, r4, r6, 0x0, 0x81}}}}, 0xa0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r5, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0(', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:44 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0)=0x0, &(0x7f0000000200)=0x0) getgroups(0x4, &(0x7f0000000240)=[0xee00, 0x0, 0xffffffffffffffff, 0xee00]) write$FUSE_CREATE_OPEN(r0, &(0x7f00000003c0)={0xa0, 0x0, 0x2, {{0x5, 0x0, 0x4, 0x80000001, 0x6, 0x1ff, {0x4, 0x8001, 0x3ff, 0x401, 0x4, 0xfffffffffffffffb, 0x7, 0x5, 0x5, 0x1, 0x8, r4, r6, 0x0, 0x81}}}}, 0xa0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r5, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xa]}, 0x10) shutdown(r0, 0x1) [ 541.877544] 9pnet: p9_fd_create_unix (17140): problem connecting socket: ./file0/file0: -2 19:17:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs#', 0x0, &(0x7f0000000380)="231a2a2800") [ 542.049885] 9pnet: p9_fd_create_unix (17157): problem connecting socket: ./file0/file0: -2 [ 542.053391] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 542.095270] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:47 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:47 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xff000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:47 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0)=0x0, &(0x7f0000000200)=0x0) getgroups(0x4, &(0x7f0000000240)=[0xee00, 0x0, 0xffffffffffffffff, 0xee00]) write$FUSE_CREATE_OPEN(r0, &(0x7f00000003c0)={0xa0, 0x0, 0x2, {{0x5, 0x0, 0x4, 0x80000001, 0x6, 0x1ff, {0x4, 0x8001, 0x3ff, 0x401, 0x4, 0xfffffffffffffffb, 0x7, 0x5, 0x5, 0x1, 0x8, r4, r6, 0x0, 0x81}}}}, 0xa0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r5, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:47 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfe800000]}, 0x10) shutdown(r0, 0x1) 19:17:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731b", 0x0, &(0x7f0000000380)="231a2a2800") [ 544.689081] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:47 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:47 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0), &(0x7f0000000200)=0x0) getgroups(0x4, &(0x7f0000000240)=[0xee00, 0x0, 0xffffffffffffffff, 0xee00]) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r4, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 544.735151] 9pnet: p9_fd_create_unix (17175): problem connecting socket: ./file0/file0: -2 [ 544.754609] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673fe", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x300]}, 0x10) shutdown(r0, 0x1) 19:17:47 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0`', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 544.921032] 9pnet: p9_fd_create_unix (17199): problem connecting socket: ./file0/file0: -2 19:17:47 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") getresuid(&(0x7f0000000180), &(0x7f00000001c0), &(0x7f0000000200)=0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC=r4, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 545.093937] 9pnet: p9_fd_create_unix (17217): problem connecting socket: ./file0/file0: -2 19:17:50 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 547.636319] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 547.646554] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:50 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x800000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xa00]}, 0x10) shutdown(r0, 0x1) 19:17:50 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:50 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000007c0)=ANY=[@ANYBLOB="2f6465762f6e756c0e24982bbc6c623000"], &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:50 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 547.776517] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 547.805658] 9pnet: p9_fd_create_unix (17233): problem connecting socket: ./file0/file0: -2 19:17:50 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 547.831246] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 547.853315] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 547.876655] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfc00000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:50 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 547.923629] 9pnet: p9_fd_create_unix (17246): problem connecting socket: ./file0/file0: -2 19:17:50 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x3f00000000000000]}, 0x10) shutdown(r0, 0x1) [ 548.050017] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 548.076228] 9pnet: p9_fd_create_unix (17263): problem connecting socket: ./file0/file0: -2 [ 548.082874] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:53 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1000000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:53 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs+', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2000000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:53 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:53 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x10}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 550.814795] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 550.851872] 9pnet: p9_fd_create_unix (17282): problem connecting socket: ./file0/file0: -2 [ 550.852256] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:53 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:53 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x5000000]}, 0x10) shutdown(r0, 0x1) [ 550.997637] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:53 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 551.047233] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 551.048346] 9pnet: p9_fd_create_unix (17305): problem connecting socket: ./file0/file0: -2 19:17:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673fb", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:56 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x10000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:56 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:56 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x3000000]}, 0x10) shutdown(r0, 0x1) 19:17:56 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:56 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x10100000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:17:56 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 553.903255] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 553.933303] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xdc05]}, 0x10) shutdown(r0, 0x1) [ 553.966413] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 553.992734] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:56 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:56 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:56 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, r3, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 554.137162] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 554.151554] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:56 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r1, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 554.178328] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 554.187195] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 554.244853] 9pnet: p9_fd_create_unix (17362): problem connecting socket: ./file0/file0: -2 19:17:59 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00f0000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:17:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:17:59 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x600000000000000]}, 0x10) shutdown(r0, 0x1) 19:17:59 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r1, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:59 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 556.961049] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 556.975222] 9pnet: p9_fd_create_unix (17368): problem connecting socket: ./file0/file0: -2 [ 557.011287] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:59 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:59 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r1, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:17:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x200000000000000]}, 0x10) shutdown(r0, 0x1) [ 557.157131] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 557.169604] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:17:59 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:17:59 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 557.205796] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 557.209133] 9pnet: p9_fd_create_unix (17393): problem connecting socket: ./file0/file0: -2 [ 557.235093] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 557.338402] 9pnet: p9_fd_create_unix (17406): problem connecting socket: ./file0/file0: -2 19:18:02 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:02 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667310", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x1100000000000000]}, 0x10) shutdown(r0, 0x1) 19:18:02 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:02 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:02 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x40000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 560.032040] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 560.047237] 9pnet: p9_fd_create_unix (17419): problem connecting socket: ./file0/file0: -2 19:18:02 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 560.072959] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:02 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x6000000]}, 0x10) shutdown(r0, 0x1) 19:18:02 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 560.195043] 9pnet: p9_fd_create_unix (17435): problem connecting socket: ./file0/file0: -2 19:18:02 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, 0x0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 560.271657] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 560.303963] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 560.310449] 9pnet: p9_fd_create_unix (17448): problem connecting socket: ./file0/file0: -2 19:18:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x600]}, 0x10) shutdown(r0, 0x1) [ 560.319270] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 560.328774] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:05 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd00700}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:05 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:05 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, 0x0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xf00]}, 0x10) shutdown(r0, 0x1) 19:18:05 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xe00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 563.060887] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 563.084472] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 563.089210] 9pnet: p9_fd_create_unix (17468): problem connecting socket: ./file0/file0: -2 19:18:05 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 563.115439] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 563.142750] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:05 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r2, 0x0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x5]}, 0x10) shutdown(r0, 0x1) 19:18:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 563.168761] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:05 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, 0x0, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:05 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230f8", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 563.227955] 9pnet: p9_fd_create_unix (17483): problem connecting socket: ./file0/file0: -2 [ 563.243867] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 563.258484] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 563.303501] 9pnet: p9_fd_create_unix (17493): problem connecting socket: ./file0/file0: -2 [ 563.327471] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:08 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb000200}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:08 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623006", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:08 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x12c]}, 0x10) shutdown(r0, 0x1) 19:18:08 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, 0x0, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:08 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00f00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:08 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623002", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 566.111128] 9pnet: p9_fd_create_unix (17507): problem connecting socket: ./file0/file0: -2 [ 566.124936] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:08 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:08 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getsockopt$inet_sctp_SCTP_CONTEXT(0xffffffffffffffff, 0x84, 0x11, &(0x7f0000000040)={0x0, 0x9}, &(0x7f0000000100)=0x8) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, 0x0, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3, r1}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667303", 0x0, &(0x7f0000000380)="231a2a2800") [ 566.169012] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:08 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfc00]}, 0x10) shutdown(r0, 0x1) [ 566.224411] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 566.281185] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 566.287966] 9pnet: p9_fd_create_unix (17531): problem connecting socket: ./file0/file0: -2 [ 566.334368] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 566.356798] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:11 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:11 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:11 executing program 0: r0 = syz_open_dev$dspn(&(0x7f0000000000)='/dev/dsp#\x00', 0x1000, 0x4000) getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(r0, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r1, r2, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:11 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x5dc]}, 0x10) shutdown(r0, 0x1) 19:18:11 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:11 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1800}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:11 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:11 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x1, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 569.211925] 9pnet: p9_fd_create_unix (17559): problem connecting socket: ./file0/file0: -2 [ 569.251728] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:11 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xa000000]}, 0x10) shutdown(r0, 0x1) [ 569.300117] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 569.314447] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 569.327348] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:12 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f4", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:12 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:12 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x2, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 569.378817] 9pnet: p9_fd_create_unix (17575): problem connecting socket: ./file0/file0: -2 [ 569.507656] 9pnet: p9_fd_create_unix (17588): problem connecting socket: ./file0/file0: -2 19:18:14 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4000000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:14 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x20000000]}, 0x10) shutdown(r0, 0x1) 19:18:14 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:14 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:14 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:14 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x101000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 572.240526] 9pnet: p9_fd_create_unix (17601): problem connecting socket: ./file0/file0: -2 19:18:14 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:14 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 572.289121] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:15 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2c01]}, 0x10) shutdown(r0, 0x1) [ 572.369712] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 572.386899] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:15 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 572.412405] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 572.419262] 9pnet: p9_fd_create_unix (17616): problem connecting socket: ./file0/file0: -2 19:18:15 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x1, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:15 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 572.556778] 9pnet: p9_fd_create_unix (17630): problem connecting socket: ./file0/file0: -2 [ 572.584990] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 572.615279] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 572.641284] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 572.649741] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:17 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1100}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:17 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x3]}, 0x10) shutdown(r0, 0x1) 19:18:17 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:17 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:17 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:17 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xc8000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 575.282024] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 575.310165] 9pnet: p9_fd_create_unix (17648): problem connecting socket: ./file0/file0: -2 [ 575.330693] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 575.349127] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:18 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:18 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 575.380580] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:18 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xdc050000]}, 0x10) shutdown(r0, 0x1) [ 575.499582] 9pnet: p9_fd_create_unix (17664): problem connecting socket: ./file0/file0: -2 [ 575.521388] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:18 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x40, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:18 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") [ 575.543794] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:18 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 575.618143] 9pnet: p9_fd_create_unix (17673): problem connecting socket: ./file0/file0: -2 [ 575.710000] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 575.737960] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:20 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0xfc000000]}, 0x10) shutdown(r0, 0x1) 19:18:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs(', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:20 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0xc2, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:20 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:20 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623005", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 578.368687] 9pnet: p9_fd_create_unix (17692): problem connecting socket: ./file0/file0: -2 19:18:21 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x200000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:21 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x6, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:21 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:21 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:21 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x2c010000]}, 0x10) shutdown(r0, 0x1) [ 578.544527] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 578.571735] 9pnet: p9_fd_create_unix (17713): problem connecting socket: ./file0/file0: -2 [ 578.600444] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:21 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:21 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 578.643434] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:21 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x300000000000000]}, 0x10) shutdown(r0, 0x1) [ 578.709754] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 578.729728] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:21 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:21 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\'', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 578.760617] 9pnet: p9_fd_create_unix (17729): problem connecting socket: ./file0/file0: -2 [ 578.774265] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 578.891057] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 578.933082] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:24 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x18000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:24 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 581.428617] 9pnet: p9_fd_create_unix (17749): problem connecting socket: ./file0/file0: -2 19:18:24 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x400000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:24 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x8000000000]}, 0x10) shutdown(r0, 0x1) 19:18:24 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:24 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:24 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 581.562883] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 581.578240] 9pnet: p9_fd_create_unix (17755): problem connecting socket: ./file0/file0: -2 [ 581.597356] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:24 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x0, 0x4, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:24 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:24 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") [ 581.613430] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 581.637713] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:24 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfe800000]}, 0x10) shutdown(r0, 0x1) [ 581.751549] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 581.776811] 9pnet: p9_fd_create_unix (17770): problem connecting socket: ./file0/file0: -2 19:18:24 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 581.805605] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 581.921741] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 581.938423] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:27 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x100000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:27 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 584.443746] 9pnet: p9_fd_create_unix (17795): problem connecting socket: ./file0/file0: -2 19:18:27 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2000000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x4000000]}, 0x10) shutdown(r0, 0x1) 19:18:27 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:27 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230f6", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:27 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:27 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 584.635526] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 584.651722] 9pnet: p9_fd_create_unix (17803): problem connecting socket: ./file0/file0: -2 19:18:27 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x7f, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:27 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x5000000]}, 0x10) shutdown(r0, 0x1) [ 584.704505] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:27 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866730f", 0x0, &(0x7f0000000380)="231a2a2800") [ 584.761298] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 584.822971] 9pnet: p9_fd_create_unix (17819): problem connecting socket: ./file0/file0: -2 [ 584.837696] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:27 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 584.931753] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 584.975832] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:30 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x600]}, 0x10) shutdown(r0, 0x1) 19:18:30 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 587.491926] 9pnet: p9_fd_create_unix (17842): problem connecting socket: ./file0/file0: -2 19:18:30 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x700}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:30 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:30 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x3f000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:30 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62301f", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:30 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x800, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:30 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfeffffff]}, 0x10) shutdown(r0, 0x1) [ 587.678591] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 587.696498] 9pnet: p9_fd_create_unix (17855): problem connecting socket: ./file0/file0: -2 19:18:30 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62301d", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 587.725419] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:30 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x3ff, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:30 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\t', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:30 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfec00000]}, 0x10) shutdown(r0, 0x1) 19:18:30 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0*', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:30 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0xacc, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 587.885440] 9pnet: p9_fd_create_unix (17871): problem connecting socket: ./file0/file0: -2 [ 588.054569] 9pnet: p9_fd_create_unix (17888): problem connecting socket: ./file0/file0: -2 19:18:33 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230f5", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x4000]}, 0x10) shutdown(r0, 0x1) 19:18:33 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:33 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:33 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x18}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 590.751457] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 590.771103] 9pnet: p9_fd_create_unix (17901): problem connecting socket: ./file0/file0: -2 19:18:33 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8001, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 590.822751] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:33 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2c01000000000000]}, 0x10) shutdown(r0, 0x1) 19:18:33 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 590.901041] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 590.926158] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 590.942579] 9pnet: p9_fd_create_unix (17917): problem connecting socket: ./file0/file0: -2 19:18:33 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0&', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:33 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 591.059854] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 591.115282] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 591.171511] 9pnet: p9_fd_create_unix (17931): problem connecting socket: ./file0/file0: -2 19:18:36 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xfffffffe}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:36 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x100000000000000]}, 0x10) shutdown(r0, 0x1) 19:18:36 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:36 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:36 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 593.797192] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 593.833657] 9pnet: p9_fd_create_unix (17943): problem connecting socket: ./file0/file0: -2 19:18:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:36 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x1000000]}, 0x10) shutdown(r0, 0x1) [ 593.842937] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 593.856400] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 593.887328] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:36 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:36 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 593.982433] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:36 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 594.038305] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.047487] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.060487] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.076658] 9pnet: p9_fd_create_unix (17968): problem connecting socket: ./file0/file0: -2 19:18:36 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 594.141033] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.184117] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.197837] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 594.237622] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:39 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x3}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:39 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x3f00]}, 0x10) shutdown(r0, 0x1) 19:18:39 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230c0", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:39 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:39 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xfffffffe}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 596.889829] 9pnet: p9_fd_create_unix (17986): problem connecting socket: ./file0/file0: -2 19:18:39 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f6", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:39 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:39 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xf00000000000000]}, 0x10) shutdown(r0, 0x1) [ 597.025520] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 597.041486] 9pnet: p9_fd_create_unix (18008): problem connecting socket: ./file0/file0: -2 19:18:39 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)=0x0) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, r0, r1, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:39 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 597.099745] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 597.194309] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 597.206304] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 597.228324] 9pnet: p9_fd_create_unix (18020): problem connecting socket: ./file0/file0: -2 19:18:42 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:42 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667303", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xdc05000000000000]}, 0x10) shutdown(r0, 0x1) 19:18:42 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, r0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:42 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x180000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 599.930270] 9pnet: p9_fd_create_unix (18034): problem connecting socket: ./file0/file0: -2 19:18:42 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:42 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:42 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x400000000000000]}, 0x10) shutdown(r0, 0x1) [ 600.060934] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 600.090743] 9pnet: p9_fd_create_unix (18056): problem connecting socket: ./file0/file0: -2 [ 600.108761] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:42 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:42 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\n', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 600.250577] 9pnet: p9_fd_create_unix (18070): problem connecting socket: ./file0/file0: -2 19:18:45 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:45 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:45 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00f0000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfeffffff00000000]}, 0x10) shutdown(r0, 0x1) 19:18:45 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x6}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 602.940361] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 602.966108] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 602.980885] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 603.005627] 9pnet: p9_fd_create_unix (18085): problem connecting socket: ./file0/file0: -2 [ 603.006020] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xf000000]}, 0x10) shutdown(r0, 0x1) 19:18:45 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:45 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:45 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 603.167755] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.178377] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.191724] 9pnet: p9_fd_create_unix (18108): problem connecting socket: ./file0/file0: -2 [ 603.199818] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:45 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 603.221711] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.251674] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.253571] 9pnet: p9_fd_create_unix (18117): problem connecting socket: ./file0/file0: -2 19:18:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xff00]}, 0x10) shutdown(r0, 0x1) 19:18:45 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}, {0x0, 0x5}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:45 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 603.287101] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.427521] 9pnet: p9_fd_create_unix (18122): problem connecting socket: ./file0/file0: -2 [ 603.444975] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 603.475629] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:48 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x100000000, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:48 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x300000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:48 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:48 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x20000000]}, 0x10) shutdown(r0, 0x1) 19:18:48 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x9, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 606.006087] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.018366] 9pnet: p9_fd_create_unix (18137): problem connecting socket: ./file0/file0: -2 [ 606.024038] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.167123] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.188438] 9pnet: p9_fd_create_unix (18152): problem connecting socket: ./file0/file0: -2 [ 606.193549] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:48 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:48 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfe80]}, 0x10) shutdown(r0, 0x1) [ 606.250216] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.270339] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:49 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 606.335218] 9pnet: p9_fd_create_unix (18165): problem connecting socket: ./file0/file0: -2 19:18:49 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 606.400639] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.435080] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:49 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xa00]}, 0x10) shutdown(r0, 0x1) [ 606.450840] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.482747] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 606.510684] 9pnet: p9_fd_create_unix (18178): problem connecting socket: ./file0/file0: -2 19:18:51 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:51 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:51 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xff000000]}, 0x10) shutdown(r0, 0x1) 19:18:51 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 609.192196] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 609.215260] 9pnet: p9_fd_create_unix (18193): problem connecting socket: ./file0/file0: -2 19:18:51 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 609.236623] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 609.254891] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 609.275527] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x3f000000]}, 0x10) shutdown(r0, 0x1) 19:18:52 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:52 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x0, 0xffffffff, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 609.350052] 9pnet: p9_fd_create_unix (18206): problem connecting socket: ./file0/file0: -2 [ 609.383571] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:52 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 609.434658] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 609.520046] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 609.541072] 9pnet: p9_fd_create_unix (18220): problem connecting socket: ./file0/file0: -2 [ 609.606806] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:54 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x500}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:54 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xf]}, 0x10) shutdown(r0, 0x1) 19:18:54 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230f4", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:54 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:54 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866737f", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:54 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:54 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0#', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 612.291958] 9pnet: p9_fd_create_unix (18237): problem connecting socket: ./file0/file0: -2 19:18:55 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:55 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfffffffe]}, 0x10) shutdown(r0, 0x1) 19:18:55 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 612.542010] 9pnet: p9_fd_create_unix (18262): problem connecting socket: ./file0/file0: -2 [ 612.561112] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 612.574452] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:55 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 612.595265] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 612.629090] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 612.645976] 9pnet: p9_fd_create_unix (18271): problem connecting socket: ./file0/file0: -2 19:18:57 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x800c0000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:18:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xa]}, 0x10) shutdown(r0, 0x1) 19:18:57 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:57 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x0, 0x800, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 614.907869] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 614.939703] 9pnet: p9_fd_create_unix (18282): problem connecting socket: ./file0/file0: -2 [ 614.956230] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 614.969953] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 614.995719] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:57 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40, 0x0, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:57 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:18:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:18:57 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2000b}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:18:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xffffffff00000000]}, 0x10) shutdown(r0, 0x1) [ 615.292273] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:18:58 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40, 0x0, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:18:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 615.338083] 9pnet: p9_fd_create_unix (18297): problem connecting socket: ./file0/file0: -2 [ 615.356473] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 615.498564] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 615.508724] 9pnet: p9_fd_create_unix (18316): problem connecting socket: ./file0/file0: -2 [ 615.523033] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:00 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd007}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:00 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:00 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x4000000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:00 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40, 0x0, 0x3}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:00 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 617.952814] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 617.985676] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:00 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 618.023540] 9pnet: p9_fd_create_unix (18330): problem connecting socket: ./file0/file0: -2 [ 618.040994] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:00 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:00 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x1100000000000000]}, 0x10) shutdown(r0, 0x1) [ 618.087666] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 618.232569] 9pnet: p9_fd_create_unix (18348): problem connecting socket: ./file0/file0: -2 19:19:00 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x6}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:00 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:00 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:00 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 618.350152] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 618.385605] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 618.397544] 9pnet: p9_fd_create_unix (18357): problem connecting socket: ./file0/file0: -2 [ 618.419007] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 618.467917] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:03 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1100000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x11]}, 0x10) shutdown(r0, 0x1) 19:19:03 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:03 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:03 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:03 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 621.070655] 9pnet: p9_fd_create_unix (18372): problem connecting socket: ./file0/file0: -2 [ 621.110735] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 621.145721] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:03 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2000000000000000]}, 0x10) shutdown(r0, 0x1) [ 621.192735] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 621.223230] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 621.300045] 9pnet: p9_fd_create_unix (18395): problem connecting socket: ./file0/file0: -2 19:19:04 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:04 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:04 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:04 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 621.418909] 9pnet: p9_fd_create_unix (18403): problem connecting socket: ./file0/file0: -2 [ 621.451758] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 621.508610] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:06 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x100000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:06 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x200000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:06 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:06 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:06 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 624.140285] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.148557] 9pnet: p9_fd_create_unix (18418): problem connecting socket: ./file0/file0: -2 [ 624.177812] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:06 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:06 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 624.188228] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.210626] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:06 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 624.290658] 9pnet: p9_fd_create_unix (18431): problem connecting socket: ./file0/file0: -2 [ 624.301211] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.340404] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:07 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:07 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x40030000000000]}, 0x10) shutdown(r0, 0x1) 19:19:07 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:07 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 624.394379] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.416485] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.497344] 9pnet: p9_fd_create_unix (18448): problem connecting socket: ./file0/file0: -2 [ 624.501229] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 624.550231] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:09 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x5000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:09 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:09 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:09 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:09 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfc00]}, 0x10) shutdown(r0, 0x1) 19:19:09 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 627.218227] 9pnet: p9_fd_create_unix (18464): problem connecting socket: ./file0/file0: -2 [ 627.249228] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:09 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 627.287058] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:10 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfec0000000000000]}, 0x10) shutdown(r0, 0x1) [ 627.343757] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 627.416701] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 627.450254] 9pnet: p9_fd_create_unix (18481): problem connecting socket: ./file0/file0: -2 19:19:10 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1f40}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:10 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:10 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:10 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 627.556051] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 627.579565] 9pnet: p9_fd_create_unix (18489): problem connecting socket: ./file0/file0: -2 [ 627.598490] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 627.615745] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 627.647551] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 629.112637] kworker/dying (291) used greatest stack depth: 12920 bytes left 19:19:12 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:12 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x500000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:12 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:12 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:12 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 630.323040] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 630.342550] 9pnet: p9_fd_create_unix (18502): problem connecting socket: ./file0/file0: -2 19:19:13 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 630.376607] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 630.392896] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 630.417871] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:13 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") [ 630.515168] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 630.522391] 9pnet: p9_fd_create_unix (18521): problem connecting socket: ./file0/file0: -2 [ 630.563451] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:13 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x5}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:13 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfc000000]}, 0x10) shutdown(r0, 0x1) 19:19:13 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x10, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:13 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623014", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 630.706029] 9pnet: p9_fd_create_unix (18533): problem connecting socket: ./file0/file0: -2 19:19:15 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x5}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:15 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:15 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:15 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\a', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:15 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x6000000]}, 0x10) shutdown(r0, 0x1) 19:19:16 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:16 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) [ 633.365635] 9pnet: p9_fd_create_unix (18553): problem connecting socket: ./file0/file0: -2 [ 633.405498] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:16 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2000000]}, 0x10) shutdown(r0, 0x1) [ 633.487811] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 633.497707] 9pnet: p9_fd_create_unix (18565): problem connecting socket: ./file0/file0: -2 [ 633.501260] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 633.536907] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:16 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC, @ANYBLOB=',access=user,rootcontext=root,\x00']) 19:19:16 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:16 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623010", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:16 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 633.743161] 9pnet: p9_fd_create_unix (18581): problem connecting socket: ./file0/file0: -2 19:19:19 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd0070000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:19 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x1100]}, 0x10) shutdown(r0, 0x1) 19:19:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:19 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=', @ANYRESDEC]) 19:19:19 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs/', 0x0, &(0x7f0000000380)="231a2a2800") [ 636.417631] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 636.443460] 9pnet: p9_fd_create_unix (18596): problem connecting socket: ./file0/file0: -2 19:19:19 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=']) 19:19:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 636.476540] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 636.572831] 9pnet: p9_fd_create_unix (18614): problem connecting socket: ./file0/file0: -2 [ 636.616152] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 636.665262] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:19 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x12c]}, 0x10) shutdown(r0, 0x1) 19:19:19 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0+', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:19 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=']) 19:19:19 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:19 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) [ 636.844245] 9pnet: p9_fd_create_unix (18627): problem connecting socket: ./file0/file0: -2 [ 636.863451] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 636.932672] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:22 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004000000000003,afid=0x0000000000000020,access=client,access=']) 19:19:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0*', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:22 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x34000]}, 0x10) shutdown(r0, 0x1) 19:19:22 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 639.489546] 9pnet: p9_fd_create_unix (18648): problem connecting socket: ./file0/file0: -2 [ 639.510688] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:22 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYRESDEC]) [ 639.563547] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 639.597556] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:22 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs%', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x600000000000000]}, 0x10) shutdown(r0, 0x1) [ 639.614373] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:22 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYRESDEC]) [ 639.740976] 9pnet_virtio: no channels available for device ./file0/file0 [ 639.746030] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 639.760463] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:22 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f0000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:22 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:22 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xa00000000000000]}, 0x10) shutdown(r0, 0x1) [ 639.886519] 9pnet_virtio: no channels available for device ./file0/file0 [ 639.906791] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 639.952561] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:25 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x3}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:25 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:25 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYRESDEC]) 19:19:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:25 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x500]}, 0x10) shutdown(r0, 0x1) 19:19:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62301b", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 642.569206] 9pnet_virtio: no channels available for device ./file0/file0 [ 642.578744] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:25 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB, @ANYRESDEC]) [ 642.614312] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:25 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:25 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xc0fe]}, 0x10) shutdown(r0, 0x1) [ 642.771856] 9pnet_virtio: no channels available for device ./file0/file0 [ 642.800236] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 642.830194] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:25 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:25 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\t', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:25 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB, @ANYRESDEC]) [ 642.964208] 9pnet_virtio: no channels available for device ./file0/file0 19:19:28 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xa000000]}, 0x10) shutdown(r0, 0x1) 19:19:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:28 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:28 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB, @ANYRESDEC]) 19:19:28 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004', @ANYRESDEC]) [ 645.580241] 9pnet_virtio: no channels available for device ./file0/file0 [ 645.591490] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 645.615036] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 645.674129] 9pnet: p9_fd_create_unix (18756): problem connecting socket: ./file0/file0: -2 19:19:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:28 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x11000000]}, 0x10) shutdown(r0, 0x1) [ 645.824940] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 645.839497] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 645.852007] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 645.866651] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:28 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb00020000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:28 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x0000000000000401,loose,debug=0x0004', @ANYRESDEC]) 19:19:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623003", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:28 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:28 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfec0]}, 0x10) shutdown(r0, 0x1) 19:19:28 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 646.033964] 9pnet: p9_fd_create_unix (18777): problem connecting socket: ./file0/file0: -2 [ 646.055201] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 646.114549] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 646.141326] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 646.187752] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:31 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xe00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:31 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:31 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfe80000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:31 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f8", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 648.659562] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 648.689657] 9pnet_virtio: no channels available for device ./file0/file0 19:19:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62301f", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 648.721168] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:31 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:31 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:31 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x300000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:31 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xfeffffff}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\t', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:31 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 649.105054] 9pnet_virtio: no channels available for device ./file0/file0 [ 649.128007] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 649.209533] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:34 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa0860100}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:34 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:34 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:34 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x3000000]}, 0x10) shutdown(r0, 0x1) 19:19:34 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:34 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:34 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0x000000', @ANYRESDEC]) [ 651.761163] 9pnet_virtio: no channels available for device ./file0/file0 [ 651.800179] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 651.868756] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 651.897940] 9pnet: p9_fd_create_unix (18864): problem connecting socket: ./file0/file0: -2 19:19:34 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x400300]}, 0x10) shutdown(r0, 0x1) 19:19:34 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 651.913529] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 651.931821] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 652.017113] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 652.044204] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:34 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x5000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:34 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:34 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 652.146614] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 652.155881] 9pnet_virtio: no channels available for device ./file0/file0 [ 652.165371] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:37 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2c01]}, 0x10) shutdown(r0, 0x1) 19:19:37 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731f", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:37 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:37 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f0000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:37 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c623004", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:37 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62300f", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 654.867023] 9pnet_virtio: no channels available for device ./file0/file0 19:19:37 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='t', @ANYRESDEC]) 19:19:37 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:37 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xf00]}, 0x10) shutdown(r0, 0x1) [ 655.012844] 9pnet_virtio: no channels available for device ./file0/file0 19:19:37 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x100000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:37 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:37 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) 19:19:37 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 655.104684] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 655.134535] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:37 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x5dc]}, 0x10) shutdown(r0, 0x1) [ 655.201010] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 655.242539] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 655.245389] 9pnet: p9_fd_create_unix (18924): problem connecting socket: ./file0/file0: -2 19:19:37 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62301c", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 655.348377] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 655.383483] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:40 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x2000000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:40 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) 19:19:40 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfc]}, 0x10) shutdown(r0, 0x1) 19:19:40 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731a", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:40 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 657.891879] 9pnet: p9_fd_create_unix (18952): problem connecting socket: ./file0/file0: -2 [ 657.902676] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:40 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 657.940800] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.097137] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.161817] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:40 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:40 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) 19:19:40 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x3f00000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:40 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:40 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:40 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0', @ANYRESDEC]) [ 658.263148] 9pnet: p9_fd_create_unix (18973): problem connecting socket: ./file0/file0: -2 [ 658.273663] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.284200] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.295228] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.303941] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 658.321555] 9pnet: p9_fd_create_unix (18986): problem connecting socket: ./file0/file0: -2 19:19:43 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x200000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:43 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:43 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731f", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:43 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debug=0', @ANYRESDEC]) 19:19:43 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xdc05]}, 0x10) shutdown(r0, 0x1) 19:19:43 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) 19:19:43 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 660.955563] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 660.966383] 9pnet: p9_fd_create_unix (18999): problem connecting socket: ./file0/file0: -2 [ 660.990507] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:43 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:43 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2]}, 0x10) shutdown(r0, 0x1) [ 661.060309] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 661.065465] 9pnet: p9_fd_create_unix (19012): problem connecting socket: ./file0/file0: -2 [ 661.109872] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 661.126736] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 661.135875] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:43 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xe}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:43 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) 19:19:43 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c62308c", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 661.307332] 9pnet: p9_fd_create_unix (19030): problem connecting socket: ./file0/file0: -2 19:19:46 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x11000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:46 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:46 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x6]}, 0x10) shutdown(r0, 0x1) 19:19:46 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:46 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,', @ANYRESDEC]) [ 664.005588] 9pnet: p9_fd_create_unix (19044): problem connecting socket: ./file0/file0: -2 [ 664.011101] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.025691] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.037815] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:46 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:46 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debu', @ANYRESDEC]) 19:19:46 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 664.070854] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:46 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x3]}, 0x10) shutdown(r0, 0x1) [ 664.176073] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.191261] 9pnet: p9_fd_create_unix (19060): problem connecting socket: ./file0/file0: -2 [ 664.212661] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.254575] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.292764] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:46 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4000000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:46 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,debu', @ANYRESDEC]) 19:19:46 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 664.375083] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.412688] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 664.435219] 9pnet: p9_fd_create_unix (19074): problem connecting socket: ./file0/file0: -2 19:19:49 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x800c00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:49 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:49 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xfc00000000000000]}, 0x10) shutdown(r0, 0x1) 19:19:49 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:49 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,d', @ANYRESDEC]) [ 667.047583] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.083643] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.088235] 9pnet: p9_fd_create_unix (19087): problem connecting socket: ./file0/file0: -2 19:19:49 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:49 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667314", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:49 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,d', @ANYRESDEC]) 19:19:49 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xff00000000000000]}, 0x10) shutdown(r0, 0x1) [ 667.156873] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.217404] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.225826] 9pnet: p9_fd_create_unix (19108): problem connecting socket: ./file0/file0: -2 19:19:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f4", 0x0, &(0x7f0000000380)="231a2a2800") 19:19:50 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:50 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,d', @ANYRESDEC]) [ 667.413441] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.428253] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 667.434069] 9pnet: p9_fd_create_unix (19126): problem connecting socket: ./file0/file0: -2 19:19:52 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:52 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xffffffff00000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:52 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2000]}, 0x10) shutdown(r0, 0x1) 19:19:52 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:52 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb="2f6465762f6e756c6c6230ff", &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:52 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,deb', @ANYRESDEC]) 19:19:52 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 670.138762] 9pnet: p9_fd_create_unix (19141): problem connecting socket: ./file0/file0: -2 [ 670.147521] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 670.174782] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:52 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,deb', @ANYRESDEC]) 19:19:52 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:52 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x80fe]}, 0x10) shutdown(r0, 0x1) [ 670.207295] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 670.225179] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:19:52 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='%quashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:52 executing program 0: getresuid(&(0x7f0000000580), &(0x7f00000005c0), &(0x7f0000000600)) stat(&(0x7f0000000640)='./file0\x00', &(0x7f0000000680)) write$FUSE_CREATE_OPEN(0xffffffffffffffff, &(0x7f0000000700)={0xa0, 0x0, 0x0, {{0x0, 0x0, 0x0, 0x0, 0x0, 0x0, {0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x6a54}}}}, 0xa0) setsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(0xffffffffffffffff, 0x84, 0xa, &(0x7f0000000140)={0x0, 0x0, 0x200, 0x0, 0x0, 0x40}, 0x20) mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount$9p_unix(&(0x7f0000000280)='./file0/file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f0000000480)='9p\x00', 0x0, &(0x7f00000004c0)=ANY=[@ANYBLOB='trans=unix,mmap,deb', @ANYRESDEC]) [ 670.269809] 9pnet: p9_fd_create_unix (19161): problem connecting socket: ./file0/file0: -2 [ 670.307815] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 670.345310] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 670.360250] 9pnet: p9_fd_create_unix (19171): problem connecting socket: ./file0/file0: -2 19:19:55 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2f26, &(0x7f0000000380)="231a2a2800") 19:19:55 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x4]}, 0x10) shutdown(r0, 0x1) 19:19:55 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x7}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:55 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x40000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:55 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000c33f70)={0x2, {{0x2, 0x0, @multicast2}}}, 0x84) close(r0) 19:19:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='\nquashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:55 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x8000000000000000, &(0x7f0000000380)="231a2a2800") 19:19:55 executing program 0: setsockopt$inet_MCAST_MSFILTER(0xffffffffffffffff, 0x0, 0x30, &(0x7f0000000ac0)=ANY=[@ANYBLOB="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"], 0x1) write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz1\x00'}, 0x45c) ioctl$UI_DEV_SETUP(0xffffffffffffffff, 0x5501, &(0x7f0000000300)={{0x0, 0x1000}, "73797a3100000000000000000000000000000000000000000000000000000000000000000000000000000000000000921000000000000000000000000000000000000000001700"}) epoll_create(0x2) r0 = creat(&(0x7f00000001c0)='./file0\x00', 0x0) sched_setaffinity(0x0, 0x7, &(0x7f00000000c0)=0x9) r1 = add_key$keyring(&(0x7f0000000280)='keyring\x00', &(0x7f00000002c0)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$restrict_keyring(0x1d, r1, &(0x7f0000000a80)='ceph\x00', &(0x7f0000000900)="736563757269747900fdbae10e2784e7a76935f46f2ea0c932e7ee29885ee4c3f77a41d8f7ec7119dee65bbc69ef54cc5951f8f4ddb20e5c3e7a5b4df64b18465c3f5e6bdc192e777b1b5102e33267bc7b76b00a6308822f2204623d47f5bc96c31c3bfca1a61efafd2e3bf0cd84c2fe764311fbeaa1c292571958a4") perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) write$binfmt_elf64(r0, &(0x7f0000000140)=ANY=[@ANYBLOB="7faaa561b912c352cea2fda69de9df72b76549f72ea96d0729130c9de6a800000000000000f6f64a06b937bc5fd9bbf7c20a6cb400000000000000"], 0x3b) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000100)={0x3, 0x4, 0x8, 0x4800000000000000}) ioctl$TUNGETVNETHDRSZ(r0, 0x800454d7, &(0x7f0000000880)) recvfrom(r0, &(0x7f0000000980)=""/190, 0xbe, 0x40000000, 0x0, 0x0) fcntl$setstatus(0xffffffffffffffff, 0x4, 0x4400) r2 = creat(&(0x7f0000000700)='./bus\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r2, 0x40086602, &(0x7f00000000c0)) syz_open_procfs(0x0, &(0x7f0000000200)="2f6578650000c10000000000e9ff0700000000000054fa07424adee916d2da75afe70b35a0fd6a1f0200f5ab26d7a071fb35331ce39c5a6568641006d7c0206a74e33326530000000000000000000000") sendmsg(0xffffffffffffffff, &(0x7f0000000080)={&(0x7f0000000380)=@pptp={0x18, 0x2, {0x0, @multicast1}}, 0x80, &(0x7f0000000980), 0x0, &(0x7f0000000100)}, 0x0) ioctl$BLKSECTGET(0xffffffffffffffff, 0x1267, &(0x7f0000000000)) r3 = inotify_init1(0x7f9) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000001c0)) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000080)={'bpq0\x00', 0x21}) syz_open_procfs(0x0, &(0x7f0000000080)='ns\x00') fsync(r3) openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x200000, 0x0) socketpair(0x1, 0x5, 0x0, &(0x7f0000000740)={0xffffffffffffffff, 0xffffffffffffffff}) syz_read_part_table(0x0, 0x0, &(0x7f0000000340)) ioctl$PERF_EVENT_IOC_SET_FILTER(r4, 0x89f1, &(0x7f0000000080)='ip6tnl0\x00') creat(&(0x7f0000000080)='./bus\x00', 0x0) 19:19:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='s\nuashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:55 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffff1f0000000000, &(0x7f0000000380)="231a2a2800") 19:19:55 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x5]}, 0x10) shutdown(r0, 0x1) 19:19:55 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='s%uashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2c010000]}, 0x10) shutdown(r0, 0x1) 19:19:56 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqcashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:58 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x700000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:19:58 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xedc0, &(0x7f0000000380)="231a2a2800") 19:19:58 executing program 0: setsockopt$inet_MCAST_MSFILTER(0xffffffffffffffff, 0x0, 0x30, &(0x7f0000000ac0)=ANY=[@ANYBLOB="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"], 0x1) write$uinput_user_dev(0xffffffffffffffff, &(0x7f0000000400)={'syz1\x00'}, 0x45c) ioctl$UI_DEV_SETUP(0xffffffffffffffff, 0x5501, &(0x7f0000000300)={{0x0, 0x1000}, "73797a3100000000000000000000000000000000000000000000000000000000000000000000000000000000000000921000000000000000000000000000000000000000001700"}) epoll_create(0x2) r0 = creat(&(0x7f00000001c0)='./file0\x00', 0x0) sched_setaffinity(0x0, 0x7, &(0x7f00000000c0)=0x9) r1 = add_key$keyring(&(0x7f0000000280)='keyring\x00', &(0x7f00000002c0)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) keyctl$restrict_keyring(0x1d, r1, &(0x7f0000000a80)='ceph\x00', &(0x7f0000000900)="736563757269747900fdbae10e2784e7a76935f46f2ea0c932e7ee29885ee4c3f77a41d8f7ec7119dee65bbc69ef54cc5951f8f4ddb20e5c3e7a5b4df64b18465c3f5e6bdc192e777b1b5102e33267bc7b76b00a6308822f2204623d47f5bc96c31c3bfca1a61efafd2e3bf0cd84c2fe764311fbeaa1c292571958a4") perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) write$binfmt_elf64(r0, &(0x7f0000000140)=ANY=[@ANYBLOB="7faaa561b912c352cea2fda69de9df72b76549f72ea96d0729130c9de6a800000000000000f6f64a06b937bc5fd9bbf7c20a6cb400000000000000"], 0x3b) fcntl$lock(0xffffffffffffffff, 0x6, &(0x7f0000000100)={0x3, 0x4, 0x8, 0x4800000000000000}) ioctl$TUNGETVNETHDRSZ(r0, 0x800454d7, &(0x7f0000000880)) recvfrom(r0, &(0x7f0000000980)=""/190, 0xbe, 0x40000000, 0x0, 0x0) fcntl$setstatus(0xffffffffffffffff, 0x4, 0x4400) r2 = creat(&(0x7f0000000700)='./bus\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r2, 0x40086602, &(0x7f00000000c0)) syz_open_procfs(0x0, &(0x7f0000000200)="2f6578650000c10000000000e9ff0700000000000054fa07424adee916d2da75afe70b35a0fd6a1f0200f5ab26d7a071fb35331ce39c5a6568641006d7c0206a74e33326530000000000000000000000") sendmsg(0xffffffffffffffff, &(0x7f0000000080)={&(0x7f0000000380)=@pptp={0x18, 0x2, {0x0, @multicast1}}, 0x80, &(0x7f0000000980), 0x0, &(0x7f0000000100)}, 0x0) ioctl$BLKSECTGET(0xffffffffffffffff, 0x1267, &(0x7f0000000000)) r3 = inotify_init1(0x7f9) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000001c0)) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000080)={'bpq0\x00', 0x21}) syz_open_procfs(0x0, &(0x7f0000000080)='ns\x00') fsync(r3) openat$ptmx(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ptmx\x00', 0x200000, 0x0) socketpair(0x1, 0x5, 0x0, &(0x7f0000000740)={0xffffffffffffffff, 0xffffffffffffffff}) syz_read_part_table(0x0, 0x0, &(0x7f0000000340)) ioctl$PERF_EVENT_IOC_SET_FILTER(r4, 0x89f1, &(0x7f0000000080)='ip6tnl0\x00') creat(&(0x7f0000000080)='./bus\x00', 0x0) 19:19:58 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd00700}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:19:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqiashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:58 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x40000000]}, 0x10) shutdown(r0, 0x1) 19:19:58 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2300, &(0x7f0000000380)="231a2a2800") 19:19:58 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sq\nashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:19:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0xdc050000]}, 0x10) shutdown(r0, 0x1) 19:19:59 executing program 0: r0 = socket$packet(0x11, 0x4000000003, 0x300) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f00000002c0)={0x1, &(0x7f0000000040)=[{0x10000000000006}]}, 0x10) r1 = socket$inet6(0xa, 0x400000000001, 0x0) bind$inet6(r1, &(0x7f0000000180)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) sendto$inet6(r1, &(0x7f0000e77fff), 0xfffffffffffffe64, 0x20000008, &(0x7f00008d4fe4)={0xa, 0x4e20, 0x0, @loopback}, 0x1c) 19:19:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x4000, &(0x7f0000000380)="231a2a2800") 19:19:59 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqdashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 676.603252] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 676.637105] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:01 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x11}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:01 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x300]}, 0x10) shutdown(r0, 0x1) 19:20:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sq%ashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:01 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb00}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:01 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:01 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6000, &(0x7f0000000380)="231a2a2800") 19:20:01 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqXashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfc00]}, 0x10) shutdown(r0, 0x1) 19:20:02 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqlashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:02 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:02 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x25f4, &(0x7f0000000380)="231a2a2800") 19:20:02 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfffffffe]}, 0x10) shutdown(r0, 0x1) 19:20:04 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xfeffffff}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:04 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqoashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:04 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:05 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x180000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2662, &(0x7f0000000380)="231a2a2800") 19:20:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x5dc]}, 0x10) shutdown(r0, 0x1) 19:20:05 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqpashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:05 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:05 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x10000000000000, &(0x7f0000000380)="231a2a2800") 19:20:05 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqsashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:05 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:05 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x500000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:07 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:07 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x1c00, &(0x7f0000000380)="231a2a2800") 19:20:07 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:08 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x11000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:08 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='sqxashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:08 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xdc05]}, 0x10) shutdown(r0, 0x1) 19:20:08 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xc0ed0000, &(0x7f0000000380)="231a2a2800") 19:20:08 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:08 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squ\nshfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 685.502164] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 685.533719] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:08 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x100000000000000, &(0x7f0000000380)="231a2a2800") 19:20:08 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x4000]}, 0x10) shutdown(r0, 0x1) 19:20:10 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x900, &(0x7f0000000380)="231a2a2800") 19:20:10 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squ%shfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:10 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x500]}, 0x10) shutdown(r0, 0x1) 19:20:11 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x6000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:11 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:11 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:11 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squa\nhfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:11 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffffff00000000, &(0x7f0000000380)="231a2a2800") [ 688.382822] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 688.408485] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:11 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xf00000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:11 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:11 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squa%hfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:11 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2e26000000000000, &(0x7f0000000380)="231a2a2800") 19:20:11 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:11 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squas%fs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:11 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfe800000]}, 0x10) shutdown(r0, 0x1) 19:20:14 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xff000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:14 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squas\nfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:14 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2804000000000000, &(0x7f0000000380)="231a2a2800") 19:20:14 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x4000000]}, 0x10) shutdown(r0, 0x1) 19:20:14 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:14 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xc8000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:14 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:14 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xfbffffff00000000, &(0x7f0000000380)="231a2a2800") 19:20:14 executing program 0: socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:14 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash.s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:14 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2000]}, 0x10) shutdown(r0, 0x1) 19:20:14 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash/s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xffffffffffffffff}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:17 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x9260000, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x1100000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:17 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash\ns\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 0: socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:17 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xffffff7f00000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:17 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x20000000, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squash%s\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xdc050000]}, 0x10) shutdown(r0, 0x1) 19:20:17 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashf%\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:17 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xfeffffff, &(0x7f0000000380)="231a2a2800") [ 694.801863] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 694.826205] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:17 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2c01]}, 0x10) shutdown(r0, 0x1) 19:20:20 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:20 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashf\n\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xa, &(0x7f0000000380)="231a2a2800") 19:20:20 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xffffffff00000000]}, 0x10) shutdown(r0, 0x1) 19:20:20 executing program 0: socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:20 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x200000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) [ 697.703461] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:20 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x1400000000000000, &(0x7f0000000380)="231a2a2800") 19:20:20 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x5]}, 0x10) shutdown(r0, 0x1) [ 697.743970] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x200000000000000, &(0x7f0000000380)="231a2a2800") [ 697.903657] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 697.919090] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:20 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:20 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6000000000000000, &(0x7f0000000380)="231a2a2800") [ 698.006808] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 698.036069] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:23 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:23 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xa]}, 0x10) shutdown(r0, 0x1) 19:20:23 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667305", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:23 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x40000000, &(0x7f0000000380)="231a2a2800") 19:20:23 executing program 0: clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:23 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:23 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\t', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:23 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xff0f0000, &(0x7f0000000380)="231a2a2800") [ 700.808853] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 700.837261] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:23 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xf]}, 0x10) shutdown(r0, 0x1) 19:20:23 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\a', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:23 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x61260000, &(0x7f0000000380)="231a2a2800") 19:20:23 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x3f00000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:26 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:26 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x1900, &(0x7f0000000380)="231a2a2800") 19:20:26 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:26 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2]}, 0x10) shutdown(r0, 0x1) 19:20:26 executing program 0: clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:26 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x10}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:26 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f6", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:26 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x10, &(0x7f0000000380)="231a2a2800") 19:20:26 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfc000000]}, 0x10) shutdown(r0, 0x1) 19:20:26 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 704.034459] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 704.070539] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:26 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2661, &(0x7f0000000380)="231a2a2800") 19:20:26 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xf00]}, 0x10) shutdown(r0, 0x1) [ 704.094840] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 704.105687] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:29 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x10000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:29 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:29 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfe80]}, 0x10) shutdown(r0, 0x1) 19:20:29 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x4000000000000000, &(0x7f0000000380)="231a2a2800") 19:20:29 executing program 0: clone(0x0, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:29 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1f40}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:29 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2000000000000000, &(0x7f0000000380)="231a2a2800") [ 706.886828] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 706.922371] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:29 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:29 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xe803, &(0x7f0000000380)="231a2a2800") 19:20:29 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x200000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:29 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667306", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:29 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x29040000, &(0x7f0000000380)="231a2a2800") 19:20:32 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x18}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:32 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2a040000, &(0x7f0000000380)="231a2a2800") 19:20:32 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xa00000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:32 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x0, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:32 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x200000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:32 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x600, &(0x7f0000000380)="231a2a2800") 19:20:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 709.929798] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 709.957552] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:32 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfec00000]}, 0x10) shutdown(r0, 0x1) 19:20:32 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6, &(0x7f0000000380)="231a2a2800") 19:20:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 710.017149] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.027574] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.045197] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.057544] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:32 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 710.106628] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.119184] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.131004] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.143671] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.164261] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 710.184843] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:35 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:35 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x42a, &(0x7f0000000380)="231a2a2800") 19:20:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2000000]}, 0x10) shutdown(r0, 0x1) 19:20:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:35 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x0, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:35 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:35 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x0, 0x300, &(0x7f0000000200)) r0 = syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(r0, &(0x7f0000000100)=""/228, 0xe4) 19:20:35 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x926000000000000, &(0x7f0000000380)="231a2a2800") [ 712.959158] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:35 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x6000000]}, 0x10) shutdown(r0, 0x1) 19:20:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") [ 713.010861] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:35 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffff7f00000000, &(0x7f0000000380)="231a2a2800") 19:20:35 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\n', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x200000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xf425000000000000, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x3000000]}, 0x10) shutdown(r0, 0x1) 19:20:38 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x500000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x600]}, 0x10) shutdown(r0, 0x1) [ 716.098401] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 716.138309] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xff0f, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731f", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:38 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfec0]}, 0x10) shutdown(r0, 0x1) [ 716.249866] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 716.261073] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:41 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x4}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="737175617368667304", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x4000000, &(0x7f0000000380)="231a2a2800") 19:20:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x3]}, 0x10) shutdown(r0, 0x1) 19:20:41 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\b', 0x0, &(0x7f0000000380)="231a2a2800") [ 719.058498] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 719.077025] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x100000, &(0x7f0000000380)="231a2a2800") 19:20:41 executing program 0: clone(0x80bff9, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) socketpair$packet(0x11, 0x3, 0x300, &(0x7f0000000200)) syz_open_procfs(0x0, &(0x7f0000000640)='task\x00') exit(0x0) getdents64(0xffffffffffffffff, &(0x7f0000000100)=""/228, 0xe4) 19:20:41 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:41 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x401f}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:41 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2c01000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:41 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x42b, &(0x7f0000000380)="231a2a2800") [ 719.193732] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 719.231023] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x7, &(0x7f0000000380)="231a2a2800") 19:20:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xff00000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:44 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x11}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:44 executing program 0: r0 = epoll_create(0x6) r1 = epoll_create(0x8) r2 = socket$rds(0x15, 0x5, 0x0) r3 = epoll_create(0x100000001) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r3, &(0x7f000000e000)) epoll_ctl$EPOLL_CTL_ADD(r3, 0x1, r2, &(0x7f0000000080)) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f000000dff4)) r4 = epoll_create(0x46c) r5 = epoll_create(0x400000200) epoll_ctl$EPOLL_CTL_ADD(r5, 0x1, r0, &(0x7f0000c7f000)) r6 = epoll_create(0x9) epoll_ctl$EPOLL_CTL_ADD(r4, 0x1, r5, &(0x7f0000d5dff4)) epoll_ctl$EPOLL_CTL_ADD(r6, 0x1, r4, &(0x7f000050aff4)) [ 722.086108] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 722.106426] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:44 executing program 0: r0 = syz_open_procfs(0x0, &(0x7f0000000100)='coredump_filter\x00') pread64(r0, &(0x7f0000002000)=""/4096, 0x1000, 0x0) [ 722.129315] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:44 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x11000000]}, 0x10) shutdown(r0, 0x1) [ 722.178146] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 722.204757] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:44 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x186a0}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:44 executing program 0: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f0000000280)={@in={{0x2, 0x4e22, @loopback}}, 0x0, 0x2, 0x0, "a77760f5a7645bc43c241d69912dda0c63c2a66726f8cfafd6c8fe2c98de7ba44947a79015f0fe57917cb62a93987a938fdedfce7bbba4fec2d8a09c41fb233245f2604b9e07b8ab79ec15ef2818a179"}, 0xd8) 19:20:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffffffffffffff, &(0x7f0000000380)="231a2a2800") [ 722.235821] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:44 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000180)='lp\x00', 0x3) 19:20:44 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866737f", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:44 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x429, &(0x7f0000000380)="231a2a2800") 19:20:45 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xff00]}, 0x10) shutdown(r0, 0x1) 19:20:47 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xe00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:47 executing program 0: r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x0) setsockopt$bt_BT_SECURITY(r0, 0x112, 0x4, &(0x7f0000000080)={0x2}, 0x2) 19:20:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xfeffffff00000000, &(0x7f0000000380)="231a2a2800") 19:20:47 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xdc05000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:47 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x7d000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:47 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x300000000000000, &(0x7f0000000380)="231a2a2800") 19:20:47 executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0) r0 = openat$fuse(0xffffffffffffff9c, &(0x7f0000000080)='/dev/fuse\x00', 0x2, 0x0) mount$fuse(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000300)='fuse\x00', 0x0, &(0x7f0000000400)={{'fd', 0x3d, r0}, 0x2c, {'rootmode', 0x3d, 0x4000}, 0x2c, {'user_id'}, 0x2c, {'group_id'}}) write$FUSE_NOTIFY_POLL(r0, &(0x7f00000001c0)={0x18, 0x4}, 0x18) 19:20:47 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:47 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x5000000]}, 0x10) shutdown(r0, 0x1) [ 725.325265] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:48 executing program 0: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ptmx\x00', 0x0, 0x0) read(r0, &(0x7f0000000540)=""/11, 0x485) ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000200)) clone(0x3102001ffe, 0x0, 0xfffffffffffffffe, &(0x7f0000000140), 0xffffffffffffffff) creat(&(0x7f00000001c0)='./file1\x00', 0xc) r1 = creat(&(0x7f0000000080)="e91f7189591e9233614b00", 0x109) r2 = dup2(r0, r1) execve(&(0x7f00000000c0)="e91f7189591e9233614b00", &(0x7f0000000140), &(0x7f0000001580)) ioctl$VT_DISALLOCATE(r2, 0x5608) open$dir(&(0x7f0000000240)='./file0\x00', 0x0, 0x0) clone(0x3102001ff6, 0x0, 0xfffffffffffffffe, &(0x7f0000000300), 0xffffffffffffffff) execve(&(0x7f0000000040)='./file1\x00', &(0x7f0000000400), &(0x7f0000000b40)) ioctl$EVIOCGPROP(r2, 0x80404509, &(0x7f0000000440)=""/231) 19:20:48 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673fa", 0x0, &(0x7f0000000380)="231a2a2800") [ 725.372806] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:50 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x100000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:50 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfe80000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:50 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2b04, &(0x7f0000000380)="231a2a2800") 19:20:50 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x1b00, &(0x7f0000000380)="231a2a2800") [ 728.189934] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 728.235522] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:51 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xf}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2c010000]}, 0x10) shutdown(r0, 0x1) 19:20:51 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xf625, &(0x7f0000000380)="231a2a2800") 19:20:51 executing program 0: r0 = memfd_create(&(0x7f00000000c0)='\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 0x0) write$binfmt_script(r0, &(0x7f0000000340)=ANY=[@ANYBLOB="2321202e2f66696c65300aaaccd513bca0638512e63801e0a0cc72f88303e4d04a856fc0ab2caf0ffbaa89aed8f12122a5b244a3216167d7e0ed2ef832319ce27f4f146f871ce6256c1a7886d0d6da00626fcc32d7bb3afe8fd56b39860402c7fb4f2a86b87c5ca540b9"], 0x6a) clone(0x20002100, 0x0, 0xfffffffffffffffe, &(0x7f0000000100), 0xffffffffffffffff) mknod$loop(&(0x7f0000000080)='./file0\x00', 0x1, 0xffffffffffffffff) execveat(r0, &(0x7f0000000000)='\x00', &(0x7f0000000300), &(0x7f0000000240), 0x1000) bpf$MAP_GET_NEXT_KEY(0x4, &(0x7f0000000040)={r0, &(0x7f0000000480)="767fb7600eceb5a3db57558afb24ec6d6e974fa90aeaac9114991e09dfee1a03ed1539fd4b9c9f7dc57cb0878ab574e75c17a598a6732e3c3a6d7dbeac723bf5e7bad8069effbe55b7914715f3bc5755162bdca8d3f83c79dd6f", &(0x7f0000000140)=""/94}, 0x18) io_setup(0x5, &(0x7f0000000200)=0x0) io_destroy(r1) [ 728.414534] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 728.447077] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:51 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:51 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x300]}, 0x10) shutdown(r0, 0x1) [ 728.593229] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 728.699834] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:53 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xa086010000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:53 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2c01000000000000]}, 0x10) shutdown(r0, 0x1) 19:20:53 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="73717561736866731f", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:53 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x80fe]}, 0x10) shutdown(r0, 0x1) 19:20:53 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xa00, &(0x7f0000000380)="231a2a2800") [ 731.306718] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 731.344957] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:54 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x400000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:54 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:54 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xf625, &(0x7f0000000380)="231a2a2800") 19:20:54 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffffeb, &(0x7f0000000380)="231a2a2800") 19:20:54 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x12c]}, 0x10) shutdown(r0, 0x1) 19:20:54 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x6000000]}, 0x10) shutdown(r0, 0x1) 19:20:54 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x1f400000, &(0x7f0000000380)="231a2a2800") [ 731.683097] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 731.712541] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:56 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd0070000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:56 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\t', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:56 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfc]}, 0x10) shutdown(r0, 0x1) 19:20:56 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xfec00000]}, 0x10) shutdown(r0, 0x1) 19:20:56 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xfffffe00, &(0x7f0000000380)="231a2a2800") 19:20:57 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:20:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xff0f000000000000, &(0x7f0000000380)="231a2a2800") 19:20:57 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:20:57 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x600, &(0x7f0000000380)="231a2a2800") 19:20:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x2000000000000000]}, 0x10) shutdown(r0, 0x1) [ 734.519129] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:57 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffffffffff0700, &(0x7f0000000380)="231a2a2800") 19:20:57 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x1000000]}, 0x10) shutdown(r0, 0x1) [ 734.567666] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 734.586726] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:20:59 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6000, &(0x7f0000000380)="231a2a2800") 19:20:59 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673c0", 0x0, &(0x7f0000000380)="231a2a2800") 19:20:59 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6000000, &(0x7f0000000380)="231a2a2800") 19:20:59 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xb00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:20:59 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xa000000]}, 0x10) shutdown(r0, 0x1) [ 737.394919] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 737.451076] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:00 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xffffffffffffffff}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:21:00 executing program 0: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x4000, &(0x7f0000000380)="231a2a2800") 19:21:00 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:21:00 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xc0fe]}, 0x10) shutdown(r0, 0x1) 19:21:00 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x7fffffffffffffff, &(0x7f0000000380)="231a2a2800") [ 737.607923] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:00 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xffffffffffffff7f, &(0x7f0000000380)="231a2a2800") [ 737.649326] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 737.661368] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:00 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs&', 0x0, &(0x7f0000000380)="231a2a2800") 19:21:00 executing program 0: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x2c010000]}, 0x10) shutdown(r0, 0x1) 19:21:00 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x600000000000000]}, 0x10) shutdown(r0, 0x1) 19:21:00 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0xfeffff00000000, &(0x7f0000000380)="231a2a2800") 19:21:03 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x186a0}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:21:03 executing program 0: r0 = memfd_create(&(0x7f00000000c0)='\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 0x0) write$binfmt_script(r0, &(0x7f0000000340)=ANY=[@ANYBLOB='#! ./file0'], 0xa) clone(0x20102102, 0x0, 0xfffffffffffffffe, &(0x7f0000000280), 0xffffffffffffffff) execveat(r0, &(0x7f0000000380)='\x00', &(0x7f0000000300)=[&(0x7f0000000040)='\x00'], &(0x7f0000000540)=[&(0x7f0000000400)='\x00', &(0x7f0000000440)='\x00'], 0x1000) 19:21:03 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x1800}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:21:03 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:21:03 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x2000000, &(0x7f0000000380)="231a2a2800") 19:21:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x100000000000000]}, 0x10) shutdown(r0, 0x1) 19:21:03 executing program 0: unshare(0x8020000) r0 = syz_open_procfs$namespace(0x0, &(0x7f00000000c0)="6e732f6d6e7400f0a5663ee2a09654c8522f7949dab8b749b328627e071015e4893cd41d403bdf1bfe5598b69c03a44002058e433a95240f45be95b3e77d0f2f61c8") setns(r0, 0x0) clone(0x10062100, &(0x7f0000000180), &(0x7f0000000080), &(0x7f0000000000), &(0x7f00000000c0)) getgid() [ 740.672940] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 740.712060] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:03 executing program 0: r0 = openat$uhid(0xffffffffffffff9c, &(0x7f0000001300)='/dev/uhid\x00', 0x1004000002802, 0x0) write$UHID_CREATE2(r0, &(0x7f0000001140)=ANY=[@ANYBLOB="0b00000073797a300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000073797a3100000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000073797a30000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000080"], 0x1) r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file0\x00', 0x400, 0x1) ioctl$RTC_PIE_ON(r1, 0x7005) syz_genetlink_get_family_id$fou(&(0x7f0000000100)='fou\x00') fstatfs(r1, &(0x7f0000000340)=""/92) sendmsg$FOU_CMD_DEL(r1, &(0x7f00000001c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x400020}, 0xc, &(0x7f0000000180)={&(0x7f00000003c0)=ANY=[@ANYBLOB="00032abd7000fcdbdf250200000008000200f7000000"], 0x1}, 0x1, 0x0, 0x0, 0x20040000}, 0x4000000) write$UHID_INPUT2(r0, &(0x7f00000002c0)={0xc, 0x55, "cb561fcda16f6cb2fc298217669d4e6f2117ac10a1122b29be541c8762e0e0c3164c7eb3dd36f2130a2e2f84cacf9100a49b5a5b9e235930b6f4ec98dfdc5e6faed45593522144c95b2cf8e3f15ce8cba7954e45e8"}, 0x5b) [ 740.731242] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 740.746516] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:03 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") 19:21:03 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x40000000]}, 0x10) shutdown(r0, 0x1) 19:21:03 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x5000000, &(0x7f0000000380)="231a2a2800") 19:21:03 executing program 0: mknod$loop(&(0x7f0000000040)='./file0\x00', 0x0, 0xffffffffffffffff) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) clock_nanosleep(0x0, 0x0, &(0x7f0000000040)={0x77359400}, 0x0) r1 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) connect$inet(0xffffffffffffffff, &(0x7f00000001c0)={0x2, 0x0, @multicast2}, 0x10) clone(0x2102001ffc, 0x0, 0xfffffffffffffffe, &(0x7f00000000c0), 0xffffffffffffffff) r2 = gettid() ioctl$FS_IOC_RESVSP(0xffffffffffffffff, 0x40305828, &(0x7f0000000180)={0x0, 0x0, 0x0, 0x5}) timer_create(0x0, &(0x7f0000000000)={0x0, 0x7, 0x4, @tid=r2}, &(0x7f0000000080)) fcntl$dupfd(r1, 0x406, 0xffffffffffffffff) ioctl$IOC_PR_RELEASE(0xffffffffffffffff, 0x401070ca, &(0x7f0000000100)={0xfff, 0x867, 0x1}) timer_settime(0x0, 0x3, &(0x7f000004a000)={{0x0, 0x1}, {0x7, 0xe4c}}, &(0x7f0000040000)) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000000100)={0x1, &(0x7f00000000c0)=[{0x6, 0x0, 0x0, 0x400}]}, 0x10) setsockopt$inet6_tcp_int(r0, 0x6, 0x2, &(0x7f0000000340)=0x800000001ff, 0x10000038f) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x4e22}, 0x1c) listen(r0, 0xffffffffffbffffc) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000000)) r3 = socket$inet6_tcp(0xa, 0x1, 0x0) sendto$inet6(r3, &(0x7f0000000040), 0xfe30, 0x20000006, &(0x7f0000000080)={0xa, 0x4e22, 0x0, @empty={[0xe00000000000000, 0xfe80000000000000, 0x0, 0xe603000000000000]}}, 0x1c) timer_create(0x0, &(0x7f0000000040)={0x0, 0x0, 0x1, @thr={&(0x7f0000000140)="9c002e4426fae11134ced4b5d296f96bc2f5ceba26519d2e9503b46937e8b0e0f4f210a704c9d8f034a1a57361d0b99d9ca08d984db3408d3ac537c79421088befa3c58b08b8b4a72bf50d69c90c946c4a47eb361660da7690109cff152abe7627ca5b44", &(0x7f0000000200)="52a289b863f4ddc2a8228d78e4a1feb5a942e168b377d9d83bb7c7b7eb6b7376e7f8f9b647a73d"}}, &(0x7f0000000280)) syz_open_procfs(0x0, &(0x7f0000007000)='net/sockstat6\x00') ioctl$BLKRRPART(0xffffffffffffffff, 0x125f, 0x0) [ 740.871606] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 740.949712] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 740.958994] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 [ 740.976156] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:06 executing program 1: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0x7d00000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) syz_open_procfs(0x0, &(0x7f0000000240)='cpuset\x00') ioctl$KVM_CREATE_VCPU(0xffffffffffffffff, 0xae41, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) 19:21:06 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673ff", 0x0, &(0x7f0000000380)="231a2a2800") 19:21:06 executing program 5: r0 = syz_open_dev$dspn(&(0x7f0000000140)='/dev/dsp#\x00', 0x1, 0x2) ioctl$int_in(0xffffffffffffffff, 0x0, &(0x7f0000000180)) write$FUSE_NOTIFY_RETRIEVE(r0, &(0x7f00000000c0)={0xffffffffffffffd3, 0x5, 0x100000000000d00, {0xd00000000000000}}, 0xfffffefd) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x0, 0x8031, 0xffffffffffffffff, 0x0) getsockopt$bt_hci(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000002c0)=""/98, &(0x7f0000000040)=0x62) setsockopt$inet_MCAST_JOIN_GROUP(0xffffffffffffffff, 0x0, 0x2a, &(0x7f0000000500)={0x0, {{0x2, 0x0, @local}}}, 0x88) accept4$packet(0xffffffffffffffff, &(0x7f0000000280)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @random}, &(0x7f0000000340)=0x14, 0x0) 19:21:06 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0xa00]}, 0x10) shutdown(r0, 0x1) 19:21:06 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x6026, &(0x7f0000000380)="231a2a2800") 19:21:06 executing program 0: perf_event_open(&(0x7f00000004c0)={0x2, 0x70, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x10, 0x3, 0xc) close(0xffffffffffffffff) getpid() recvfrom$unix(0xffffffffffffffff, &(0x7f0000000000)=""/84, 0x22c, 0x0, &(0x7f0000000080)=@file={0x0, './file0\x00'}, 0xfffffffffffffeff) write$P9_RVERSION(r0, &(0x7f0000000100)={0x15, 0x65, 0xffff, 0x0, 0x8, '9P2000.u'}, 0x15) 19:21:06 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x0, &(0x7f0000000380)="231a2a2800") [ 743.737403] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:06 executing program 0: r0 = memfd_create(&(0x7f00000000c0)='\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00', 0x0) write$binfmt_script(r0, &(0x7f0000000340)=ANY=[@ANYBLOB='#! ./file0'], 0xa) openat$dir(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0, 0x96) clone(0x20102102, 0x0, 0xfffffffffffffffe, &(0x7f0000000280), 0xffffffffffffffff) mknod$loop(&(0x7f0000000080)='./file0\x00', 0x1, 0xffffffffffffffff) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$inet(0x10, 0x3, 0xc) sendmsg(r2, &(0x7f0000011fc8)={0x0, 0x0, &(0x7f0000000140)=[{&(0x7f0000000000)="2400000002031f001cfffd946fa2830020200a000900010001e700000000a3a20404ff7e", 0x24}], 0x1}, 0x0) execveat(r0, &(0x7f0000000380)='\x00', &(0x7f0000000300)=[&(0x7f0000000040)='\x00'], &(0x7f0000000540)=[&(0x7f0000000400)='\x00', &(0x7f0000000440)='\x00'], 0x1000) 19:21:06 executing program 3: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000abe000)}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)='squashfs\x00', 0x600000000000000, &(0x7f0000000380)="231a2a2800") [ 743.801295] squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on nullb0 19:21:06 executing program 4: mkdir(&(0x7f0000000080)='./file0\x00', 0x0) openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x0, 0x0) mount(&(0x7f00000000c0)=@nullb='/dev/nullb0\x00', &(0x7f0000000300)='./file0\x00', &(0x7f0000000340)="7371756173686673f8", 0x0, &(0x7f0000000380)="231a2a2800") 19:21:06 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendto$inet(r0, &(0x7f0000a34fff)='H', 0x1, 0x0, &(0x7f0000000180)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff}, [0x0, 0x0, 0x0, 0x0, 0x6]}, 0x10) shutdown(r0, 0x1) 19:21:06 executing program 0: r0 = syz_open_dev$usb(&(0x7f0000000280)='/dev/bus/usb/00#/00#\x00', 0x40000fffffd, 0x2) ioctl$FS_IOC_FSGETXATTR(r0, 0xc0185500, &(0x7f0000000040)={0xa3, 0x4c}) [ 743.988373] vhci_hcd: invalid port number 76 [ 743.998781] ================================================================== [ 744.006467] BUG: KASAN: use-after-free in vhci_hub_control+0x1b6d/0x1be0 [ 744.013338] Read of size 4 at addr ffff8801cdf3433c by task syz-executor0/20493 [ 744.020792] [ 744.022439] CPU: 0 PID: 20493 Comm: syz-executor0 Not tainted 4.19.0-rc6+ #42 [ 744.029723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 744.039077] Call Trace: [ 744.041692] dump_stack+0x1c4/0x2b4 [ 744.045357] ? dump_stack_print_info.cold.2+0x52/0x52 [ 744.050554] ? printk+0xa7/0xcf [ 744.053853] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 744.058633] print_address_description.cold.8+0x9/0x1ff [ 744.058660] kasan_report.cold.9+0x242/0x309 [ 744.068426] ? vhci_hub_control+0x1b6d/0x1be0 [ 744.072942] __asan_report_load4_noabort+0x14/0x20 [ 744.077887] vhci_hub_control+0x1b6d/0x1be0 [ 744.082234] ? vhci_hcd_probe+0x240/0x240 [ 744.086407] ? rcu_read_lock_sched_held+0x108/0x120 [ 744.091433] ? __kmalloc+0x5de/0x760 [ 744.095139] ? kasan_check_write+0x14/0x20 [ 744.099366] ? do_raw_spin_lock+0xc1/0x200 [ 744.103648] ? usb_hcd_submit_urb+0x6fc/0x20a0 [ 744.108228] usb_hcd_submit_urb+0x17bb/0x20a0 [ 744.112715] ? vhci_hcd_probe+0x240/0x240 [ 744.116852] ? usb_create_hcd+0x40/0x40 [ 744.120815] ? do_syscall_64+0x1b9/0x820 [ 744.124876] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.130252] ? __x64_sys_ioctl+0x73/0xb0 [ 744.134335] ? do_syscall_64+0x1b9/0x820 [ 744.138409] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.143780] ? find_held_lock+0x36/0x1c0 [ 744.147848] ? __lockdep_init_map+0x105/0x590 [ 744.152338] ? __lockdep_init_map+0x105/0x590 [ 744.156836] usb_submit_urb+0x893/0x14e0 [ 744.160886] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 744.166167] usb_start_wait_urb+0x13d/0x370 [ 744.170492] ? sg_clean+0x240/0x240 [ 744.174141] usb_control_msg+0x332/0x4e0 [ 744.178193] ? usb_start_wait_urb+0x370/0x370 [ 744.182675] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 744.188256] proc_control+0x99b/0xef0 [ 744.192068] ? proc_bulk+0xa70/0xa70 [ 744.195796] usbdev_do_ioctl+0x1eb8/0x3b50 [ 744.200022] ? processcompl_compat+0x680/0x680 [ 744.204598] ? print_usage_bug+0xc0/0xc0 [ 744.208654] ? mark_held_locks+0x130/0x130 [ 744.212903] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 744.218006] ? graph_lock+0x170/0x170 [ 744.221814] ? __lock_acquire+0x7ec/0x4ec0 [ 744.226056] ? mark_held_locks+0x130/0x130 [ 744.230279] ? lock_downgrade+0x900/0x900 [ 744.234426] ? graph_lock+0x170/0x170 [ 744.238214] ? do_futex+0x249/0x26d0 [ 744.241916] ? kasan_check_read+0x11/0x20 [ 744.246375] ? do_raw_spin_unlock+0xa7/0x2f0 [ 744.250777] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 744.255352] ? find_held_lock+0x36/0x1c0 [ 744.259407] ? __fget+0x4aa/0x740 [ 744.262850] ? lock_downgrade+0x900/0x900 [ 744.266990] ? check_preemption_disabled+0x48/0x200 [ 744.271997] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 744.277789] ? smk_access+0x53b/0x700 [ 744.281578] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 744.286847] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 744.292370] ? smack_log+0x423/0x590 [ 744.296075] ? smk_access_entry+0x310/0x310 [ 744.300383] ? __fget+0x4d1/0x740 [ 744.303843] ? smk_tskacc+0x3dd/0x520 [ 744.307640] usbdev_ioctl+0x25/0x30 [ 744.311254] ? usbdev_compat_ioctl+0x30/0x30 [ 744.315650] do_vfs_ioctl+0x1de/0x1720 [ 744.319539] ? ioctl_preallocate+0x300/0x300 [ 744.323936] ? smk_curacc+0x7f/0xa0 [ 744.327574] ? smack_file_ioctl+0x210/0x3c0 [ 744.331880] ? fget_raw+0x20/0x20 [ 744.335324] ? smack_file_lock+0x2e0/0x2e0 [ 744.339550] ? do_syscall_64+0x9a/0x820 [ 744.343518] ? do_syscall_64+0x9a/0x820 [ 744.347483] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 744.353018] ? security_file_ioctl+0x94/0xc0 [ 744.357415] ksys_ioctl+0xa9/0xd0 [ 744.360874] __x64_sys_ioctl+0x73/0xb0 [ 744.364751] do_syscall_64+0x1b9/0x820 [ 744.368648] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 744.374001] ? syscall_return_slowpath+0x5e0/0x5e0 [ 744.378913] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 744.383758] ? trace_hardirqs_on_caller+0x310/0x310 [ 744.388788] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 744.393806] ? prepare_exit_to_usermode+0x291/0x3b0 [ 744.398829] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 744.403662] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.408837] RIP: 0033:0x457579 [ 744.412019] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 744.430911] RSP: 002b:00007fe269545c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 744.438612] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 [ 744.445866] RDX: 0000000020000040 RSI: 00000000c0185500 RDI: 0000000000000003 [ 744.453136] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 744.460392] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe2695466d4 [ 744.467646] R13: 00000000004bf6c0 R14: 00000000004cf598 R15: 00000000ffffffff [ 744.474909] [ 744.476540] The buggy address belongs to the page: [ 744.481468] page:ffffea000737cd00 count:0 mapcount:-128 mapping:0000000000000000 index:0x0 [ 744.489852] flags: 0x2fffc0000000000() [ 744.493754] raw: 02fffc0000000000 ffffea0007200d08 ffffea0006e50dc8 0000000000000000 [ 744.501625] raw: 0000000000000000 0000000000000000 00000000ffffff7f 0000000000000000 [ 744.509486] page dumped because: kasan: bad access detected [ 744.515181] [ 744.516792] Memory state around the buggy address: [ 744.521705] ffff8801cdf34200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 744.529048] ffff8801cdf34280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 744.536392] >ffff8801cdf34300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 744.543733] ^ [ 744.548905] ffff8801cdf34380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 744.556259] ffff8801cdf34400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 744.563606] ================================================================== [ 744.570954] Disabling lock debugging due to kernel taint [ 744.576393] Kernel panic - not syncing: panic_on_warn set ... [ 744.576393] [ 744.583742] CPU: 0 PID: 20493 Comm: syz-executor0 Tainted: G B 4.19.0-rc6+ #42 [ 744.592413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 744.601754] Call Trace: [ 744.604339] dump_stack+0x1c4/0x2b4 [ 744.607956] ? dump_stack_print_info.cold.2+0x52/0x52 [ 744.613136] ? lock_downgrade+0x900/0x900 [ 744.617273] panic+0x238/0x4e7 [ 744.620452] ? add_taint.cold.5+0x16/0x16 [ 744.624584] ? add_taint.cold.5+0x5/0x16 [ 744.628630] ? trace_hardirqs_off+0xaf/0x310 [ 744.633028] kasan_end_report+0x47/0x4f [ 744.636985] kasan_report.cold.9+0x76/0x309 [ 744.641295] ? vhci_hub_control+0x1b6d/0x1be0 [ 744.645785] __asan_report_load4_noabort+0x14/0x20 [ 744.650706] vhci_hub_control+0x1b6d/0x1be0 [ 744.655027] ? vhci_hcd_probe+0x240/0x240 [ 744.659180] ? rcu_read_lock_sched_held+0x108/0x120 [ 744.664186] ? __kmalloc+0x5de/0x760 [ 744.667887] ? kasan_check_write+0x14/0x20 [ 744.672118] ? do_raw_spin_lock+0xc1/0x200 [ 744.676348] ? usb_hcd_submit_urb+0x6fc/0x20a0 [ 744.680913] usb_hcd_submit_urb+0x17bb/0x20a0 [ 744.685393] ? vhci_hcd_probe+0x240/0x240 [ 744.689541] ? usb_create_hcd+0x40/0x40 [ 744.693523] ? do_syscall_64+0x1b9/0x820 [ 744.697572] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.702927] ? __x64_sys_ioctl+0x73/0xb0 [ 744.706978] ? do_syscall_64+0x1b9/0x820 [ 744.711048] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.716401] ? find_held_lock+0x36/0x1c0 [ 744.720447] ? __lockdep_init_map+0x105/0x590 [ 744.724950] ? __lockdep_init_map+0x105/0x590 [ 744.729435] usb_submit_urb+0x893/0x14e0 [ 744.733482] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 744.738751] usb_start_wait_urb+0x13d/0x370 [ 744.743059] ? sg_clean+0x240/0x240 [ 744.746673] usb_control_msg+0x332/0x4e0 [ 744.750717] ? usb_start_wait_urb+0x370/0x370 [ 744.755198] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 744.760725] proc_control+0x99b/0xef0 [ 744.764540] ? proc_bulk+0xa70/0xa70 [ 744.768250] usbdev_do_ioctl+0x1eb8/0x3b50 [ 744.772482] ? processcompl_compat+0x680/0x680 [ 744.777053] ? print_usage_bug+0xc0/0xc0 [ 744.781099] ? mark_held_locks+0x130/0x130 [ 744.785323] ? drop_futex_key_refs.isra.15+0x6d/0xe0 [ 744.790422] ? graph_lock+0x170/0x170 [ 744.794239] ? __lock_acquire+0x7ec/0x4ec0 [ 744.798464] ? mark_held_locks+0x130/0x130 [ 744.802692] ? lock_downgrade+0x900/0x900 [ 744.806825] ? graph_lock+0x170/0x170 [ 744.810611] ? do_futex+0x249/0x26d0 [ 744.814309] ? kasan_check_read+0x11/0x20 [ 744.818441] ? do_raw_spin_unlock+0xa7/0x2f0 [ 744.822834] ? do_raw_spin_trylock+0x1c0/0x1c0 [ 744.827412] ? find_held_lock+0x36/0x1c0 [ 744.831467] ? __fget+0x4aa/0x740 [ 744.834905] ? lock_downgrade+0x900/0x900 [ 744.839042] ? check_preemption_disabled+0x48/0x200 [ 744.844047] ? rcu_read_unlock_special.part.39+0x11f0/0x11f0 [ 744.849875] ? smk_access+0x53b/0x700 [ 744.853664] ? rcu_dynticks_curr_cpu_in_eqs+0x9f/0x160 [ 744.858927] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 744.864450] ? smack_log+0x423/0x590 [ 744.868159] ? smk_access_entry+0x310/0x310 [ 744.872503] ? __fget+0x4d1/0x740 [ 744.875956] ? smk_tskacc+0x3dd/0x520 [ 744.879748] usbdev_ioctl+0x25/0x30 [ 744.883364] ? usbdev_compat_ioctl+0x30/0x30 [ 744.887788] do_vfs_ioctl+0x1de/0x1720 [ 744.891662] ? ioctl_preallocate+0x300/0x300 [ 744.896056] ? smk_curacc+0x7f/0xa0 [ 744.899668] ? smack_file_ioctl+0x210/0x3c0 [ 744.903972] ? fget_raw+0x20/0x20 [ 744.907416] ? smack_file_lock+0x2e0/0x2e0 [ 744.911638] ? do_syscall_64+0x9a/0x820 [ 744.915598] ? do_syscall_64+0x9a/0x820 [ 744.919557] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 744.925077] ? security_file_ioctl+0x94/0xc0 [ 744.929472] ksys_ioctl+0xa9/0xd0 [ 744.932915] __x64_sys_ioctl+0x73/0xb0 [ 744.936803] do_syscall_64+0x1b9/0x820 [ 744.940681] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 744.946043] ? syscall_return_slowpath+0x5e0/0x5e0 [ 744.950976] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 744.955805] ? trace_hardirqs_on_caller+0x310/0x310 [ 744.960817] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 744.965818] ? prepare_exit_to_usermode+0x291/0x3b0 [ 744.970834] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 744.975663] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 744.980833] RIP: 0033:0x457579 [ 744.984025] Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 745.002910] RSP: 002b:00007fe269545c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 745.010599] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 [ 745.017854] RDX: 0000000020000040 RSI: 00000000c0185500 RDI: 0000000000000003 [ 745.025108] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 745.032360] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe2695466d4 [ 745.039610] R13: 00000000004bf6c0 R14: 00000000004cf598 R15: 00000000ffffffff [ 745.047830] Kernel Offset: disabled [ 745.051454] Rebooting in 86400 seconds..