[ 38.035390] audit: type=1800 audit(1545701178.433:25): pid=7769 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 38.072788] audit: type=1800 audit(1545701178.433:26): pid=7769 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.095507] audit: type=1800 audit(1545701178.443:27): pid=7769 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 38.483924] sshd (7835) used greatest stack depth: 16200 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 43.491399] sshd (7906) used greatest stack depth: 15736 bytes left Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. [ 50.226005] FAULT_INJECTION: forcing a failure. [ 50.226005] name failslab, interval 1, probability 0, space 0, times 1 [ 50.231442] FAULT_INJECTION: forcing a failure. [ 50.231442] name failslab, interval 1, probability 0, space 0, times 1 [ 50.242903] FAULT_INJECTION: forcing a failure. [ 50.242903] name failslab, interval 1, probability 0, space 0, times 1 [ 50.249502] FAULT_INJECTION: forcing a failure. [ 50.249502] name failslab, interval 1, probability 0, space 0, times 1 [ 50.260088] CPU: 1 PID: 7923 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 50.278009] FAULT_INJECTION: forcing a failure. [ 50.278009] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 50.278180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.299330] Call Trace: [ 50.301920] dump_stack+0x1d3/0x2c6 [ 50.305591] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.310792] ? find_held_lock+0x36/0x1c0 [ 50.314860] should_fail.cold.4+0xa/0x17 [ 50.318929] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.324041] ? __sched_text_start+0x8/0x8 [ 50.328195] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.332958] ? retint_kernel+0x2d/0x2d [ 50.336847] ? trace_hardirqs_on_caller+0xc0/0x310 [ 50.341783] ? kasan_check_write+0x14/0x20 [ 50.346018] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 50.350953] ? graph_lock+0x270/0x270 [ 50.354772] ? wait_for_completion+0x8a0/0x8a0 [ 50.359364] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.364900] ? check_preemption_disabled+0x48/0x280 [ 50.369925] ? __lock_is_held+0xb5/0x140 [ 50.374009] __should_failslab+0x124/0x180 [ 50.378242] should_failslab+0x9/0x14 [ 50.382057] kmem_cache_alloc_trace+0x4b/0x750 [ 50.386786] __hw_addr_create_ex+0xb2/0x3f0 [ 50.391108] ? dev_mc_init+0x170/0x170 [ 50.395003] __hw_addr_add_ex+0x1ef/0x2b0 [ 50.399181] dev_addr_init+0x169/0x260 [ 50.403089] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 50.407419] ? kasan_unpoison_shadow+0x35/0x50 [ 50.412001] ? kasan_kmalloc+0xc7/0xe0 [ 50.415907] ? __kmalloc_node+0x50/0x70 [ 50.419889] alloc_netdev_mqs+0x21b/0xfe0 [ 50.424044] ? number+0x972/0xca0 [ 50.427508] ? x25_asy_connected+0x270/0x270 [ 50.431928] ? free_netdev+0x450/0x450 [ 50.435832] ? put_dec+0xf0/0xf0 [ 50.439197] ? format_decode+0x1b2/0xaf0 [ 50.443262] ? enable_ptr_key_workfn+0x30/0x30 [ 50.447839] ? graph_lock+0x270/0x270 [ 50.451656] ? trace_hardirqs_off+0xb8/0x310 [ 50.456073] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.461643] ? vsnprintf+0x20d/0x1b60 [ 50.465455] ? pointer+0x900/0x900 [ 50.469012] ? sprintf+0xb0/0xe0 [ 50.472398] ? scnprintf+0x130/0x130 [ 50.476115] ? __kasan_slab_free+0x119/0x150 [ 50.480532] x25_asy_open_tty+0x551/0x7e7 [ 50.484682] ? x25_asy_close_tty+0x220/0x220 [ 50.489096] ? down_write_nested+0x130/0x130 [ 50.493502] ? down_read+0x120/0x120 [ 50.497219] ? x25_asy_close_tty+0x220/0x220 [ 50.501634] tty_ldisc_open.isra.1+0x8b/0xe0 [ 50.506048] tty_set_ldisc+0x2dc/0x6a0 [ 50.509950] tty_ioctl+0x39d/0x17d0 [ 50.513626] ? tty_vhangup+0x30/0x30 [ 50.517345] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.522885] ? proc_fail_nth_write+0x9e/0x210 [ 50.527380] ? proc_cwd_link+0x1d0/0x1d0 [ 50.531444] ? trace_hardirqs_off+0xb8/0x310 [ 50.535859] ? find_held_lock+0x36/0x1c0 [ 50.539942] ? vfs_write+0x2f3/0x560 [ 50.543666] ? lock_downgrade+0x900/0x900 [ 50.547909] ? __lock_is_held+0xb5/0x140 [ 50.551976] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.557510] ? __fget_light+0x2e9/0x430 [ 50.561487] ? fget_raw+0x20/0x20 [ 50.564946] ? __sb_end_write+0xd9/0x110 [ 50.569035] ? vfs_write+0x2ad/0x560 [ 50.572776] ? do_fast_syscall_32+0x150/0xfb2 [ 50.577279] tty_compat_ioctl+0x89/0x540 [ 50.581383] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 50.586618] ? tty_ioctl+0x17d0/0x17d0 [ 50.590514] __ia32_compat_sys_ioctl+0x20e/0x630 [ 50.595274] do_fast_syscall_32+0x34d/0xfb2 [ 50.599633] ? do_int80_syscall_32+0x890/0x890 [ 50.604233] ? entry_SYSENTER_compat+0x68/0x7f [ 50.608832] ? trace_hardirqs_off_caller+0xbb/0x310 [ 50.613849] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.618689] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.623527] ? trace_hardirqs_on_caller+0x310/0x310 [ 50.628545] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 50.633562] ? prepare_exit_to_usermode+0x291/0x3b0 [ 50.638619] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.643473] entry_SYSENTER_compat+0x70/0x7f [ 50.647889] RIP: 0023:0xf7f28a49 [ 50.651277] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 50.670172] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 50.677875] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 50.685144] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 50.692408] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 50.699660] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 50.706916] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 50.714198] CPU: 0 PID: 7931 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 50.721229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.730576] Call Trace: [ 50.733176] dump_stack+0x1d3/0x2c6 [ 50.736815] ? dump_stack_print_info.cold.1+0x20/0x20 [ 50.742023] should_fail.cold.4+0xa/0x17 [ 50.746090] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.751197] ? __lock_acquire+0x62f/0x4c20 [ 50.755475] ? mark_held_locks+0x130/0x130 [ 50.759724] ? mark_held_locks+0x130/0x130 [ 50.764000] ? mark_held_locks+0x130/0x130 [ 50.768250] ? print_usage_bug+0xc0/0xc0 [ 50.772318] ? print_usage_bug+0xc0/0xc0 [ 50.776391] ? print_usage_bug+0xc0/0xc0 [ 50.780475] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.786010] ? should_fail+0x22d/0xd01 [ 50.789905] ? __lock_acquire+0x62f/0x4c20 [ 50.794141] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 50.799250] __alloc_pages_nodemask+0x366/0xea0 [ 50.803923] ? __lock_acquire+0x62f/0x4c20 [ 50.808175] ? graph_lock+0x270/0x270 [ 50.811982] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 50.817006] ? find_held_lock+0x36/0x1c0 [ 50.821087] ? ___might_sleep+0x1ed/0x300 [ 50.825252] ? trace_hardirqs_off+0xb8/0x310 [ 50.829668] cache_grow_begin+0x91/0x8c0 [ 50.833793] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.839347] ? check_preemption_disabled+0x48/0x280 [ 50.844384] kmem_cache_alloc_node_trace+0x670/0x740 [ 50.849486] ? is_bpf_text_address+0xd3/0x170 [ 50.853983] ? kernel_text_address+0x79/0xf0 [ 50.858419] __kmalloc_node+0x3c/0x70 [ 50.862238] kvmalloc_node+0x65/0xf0 [ 50.865962] alloc_netdev_mqs+0x17b/0xfe0 [ 50.870114] ? number+0x972/0xca0 [ 50.873596] ? x25_asy_connected+0x270/0x270 [ 50.878026] ? free_netdev+0x450/0x450 [ 50.881916] ? put_dec+0xf0/0xf0 [ 50.885296] ? format_decode+0x1b2/0xaf0 [ 50.889378] ? enable_ptr_key_workfn+0x30/0x30 [ 50.893986] ? graph_lock+0x270/0x270 [ 50.897812] ? trace_hardirqs_off+0xb8/0x310 [ 50.902231] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.907776] ? vsnprintf+0x20d/0x1b60 [ 50.911675] ? pointer+0x900/0x900 [ 50.915227] ? sprintf+0xb0/0xe0 [ 50.918621] ? scnprintf+0x130/0x130 [ 50.922365] ? __kasan_slab_free+0x119/0x150 [ 50.926839] x25_asy_open_tty+0x551/0x7e7 [ 50.930995] ? x25_asy_close_tty+0x220/0x220 [ 50.935407] ? down_write_nested+0x130/0x130 [ 50.939817] ? down_read+0x120/0x120 [ 50.943537] ? x25_asy_close_tty+0x220/0x220 [ 50.947947] tty_ldisc_open.isra.1+0x8b/0xe0 [ 50.952374] tty_set_ldisc+0x2dc/0x6a0 [ 50.956352] tty_ioctl+0x39d/0x17d0 [ 50.959984] ? tty_vhangup+0x30/0x30 [ 50.963704] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 50.969253] ? proc_fail_nth_write+0x9e/0x210 [ 50.973752] ? proc_cwd_link+0x1d0/0x1d0 [ 50.977936] ? trace_hardirqs_off+0xb8/0x310 [ 50.982381] ? find_held_lock+0x36/0x1c0 [ 50.986458] ? vfs_write+0x2f3/0x560 [ 50.990185] ? lock_downgrade+0x900/0x900 [ 50.994338] ? __lock_is_held+0xb5/0x140 [ 50.998471] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.004038] ? __fget_light+0x2e9/0x430 [ 51.008016] ? fget_raw+0x20/0x20 [ 51.011470] ? __sb_end_write+0xd9/0x110 [ 51.015590] ? vfs_write+0x2ad/0x560 [ 51.019328] ? do_fast_syscall_32+0x150/0xfb2 [ 51.023865] tty_compat_ioctl+0x89/0x540 [ 51.027934] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 51.033188] ? tty_ioctl+0x17d0/0x17d0 [ 51.037073] __ia32_compat_sys_ioctl+0x20e/0x630 [ 51.041834] do_fast_syscall_32+0x34d/0xfb2 [ 51.046163] ? do_int80_syscall_32+0x890/0x890 [ 51.050753] ? entry_SYSENTER_compat+0x68/0x7f [ 51.055337] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.060351] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.065213] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.070077] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.075095] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.080113] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.085158] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.090011] entry_SYSENTER_compat+0x70/0x7f [ 51.094429] RIP: 0023:0xf7f28a49 [ 51.097815] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 51.116712] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 51.124431] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 51.131698] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 51.138988] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 51.146257] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.153542] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.160895] CPU: 1 PID: 7928 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 51.166101] FAULT_INJECTION: forcing a failure. [ 51.166101] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 51.167929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.189038] Call Trace: [ 51.191630] dump_stack+0x1d3/0x2c6 [ 51.195266] ? dump_stack_print_info.cold.1+0x20/0x20 [ 51.200462] ? find_held_lock+0x36/0x1c0 [ 51.204558] should_fail.cold.4+0xa/0x17 [ 51.208671] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.213774] ? graph_lock+0x270/0x270 [ 51.217580] ? print_usage_bug+0xc0/0xc0 [ 51.221681] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 51.226700] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 51.232508] ? kasan_check_write+0x14/0x20 [ 51.236747] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 51.241683] ? graph_lock+0x270/0x270 [ 51.245483] ? wait_for_completion+0x8a0/0x8a0 [ 51.250089] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.255624] ? check_preemption_disabled+0x48/0x280 [ 51.260660] ? __lock_is_held+0xb5/0x140 [ 51.264732] __should_failslab+0x124/0x180 [ 51.269014] should_failslab+0x9/0x14 [ 51.272851] kmem_cache_alloc_trace+0x4b/0x750 [ 51.277465] __hw_addr_create_ex+0xb2/0x3f0 [ 51.281811] ? dev_mc_init+0x170/0x170 [ 51.285706] __hw_addr_add_ex+0x1ef/0x2b0 [ 51.289886] dev_addr_init+0x169/0x260 [ 51.293773] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 51.298109] ? kasan_unpoison_shadow+0x35/0x50 [ 51.302706] ? kasan_kmalloc+0xc7/0xe0 [ 51.306617] ? __kmalloc_node+0x50/0x70 [ 51.310637] alloc_netdev_mqs+0x21b/0xfe0 [ 51.314802] ? number+0x972/0xca0 [ 51.318253] ? x25_asy_connected+0x270/0x270 [ 51.322657] ? free_netdev+0x450/0x450 [ 51.326555] ? put_dec+0xf0/0xf0 [ 51.329935] ? format_decode+0x1b2/0xaf0 [ 51.334026] ? enable_ptr_key_workfn+0x30/0x30 [ 51.338607] ? graph_lock+0x270/0x270 [ 51.342409] ? trace_hardirqs_off+0xb8/0x310 [ 51.346821] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.352371] ? vsnprintf+0x20d/0x1b60 [ 51.356179] ? pointer+0x900/0x900 [ 51.359742] ? sprintf+0xb0/0xe0 [ 51.363109] ? scnprintf+0x130/0x130 [ 51.366850] ? __kasan_slab_free+0x119/0x150 [ 51.371303] x25_asy_open_tty+0x551/0x7e7 [ 51.375514] ? x25_asy_close_tty+0x220/0x220 [ 51.379923] ? down_write_nested+0x130/0x130 [ 51.384327] ? down_read+0x120/0x120 [ 51.388037] ? x25_asy_close_tty+0x220/0x220 [ 51.392456] tty_ldisc_open.isra.1+0x8b/0xe0 [ 51.396890] tty_set_ldisc+0x2dc/0x6a0 [ 51.400798] tty_ioctl+0x39d/0x17d0 [ 51.404429] ? tty_vhangup+0x30/0x30 [ 51.408160] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 51.413715] ? proc_fail_nth_write+0x9e/0x210 [ 51.418212] ? proc_cwd_link+0x1d0/0x1d0 [ 51.422302] ? trace_hardirqs_off+0xb8/0x310 [ 51.426715] ? find_held_lock+0x36/0x1c0 [ 51.430788] ? vfs_write+0x2f3/0x560 [ 51.434530] ? lock_downgrade+0x900/0x900 [ 51.438712] ? __lock_is_held+0xb5/0x140 [ 51.442782] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.448349] ? __fget_light+0x2e9/0x430 [ 51.452421] ? fget_raw+0x20/0x20 [ 51.455872] ? __sb_end_write+0xd9/0x110 [ 51.459933] ? vfs_write+0x2ad/0x560 [ 51.463670] ? do_fast_syscall_32+0x150/0xfb2 [ 51.468181] tty_compat_ioctl+0x89/0x540 [ 51.472250] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 51.477440] ? tty_ioctl+0x17d0/0x17d0 [ 51.481347] __ia32_compat_sys_ioctl+0x20e/0x630 [ 51.486136] do_fast_syscall_32+0x34d/0xfb2 [ 51.490460] ? do_int80_syscall_32+0x890/0x890 [ 51.495038] ? entry_SYSENTER_compat+0x68/0x7f [ 51.499627] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.504647] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.509508] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.514372] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.519393] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.524416] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.529438] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.534306] entry_SYSENTER_compat+0x70/0x7f [ 51.538705] RIP: 0023:0xf7f28a49 [ 51.542089] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 51.560988] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 51.568706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 51.575971] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 51.583256] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 51.590656] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 51.597932] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.605248] CPU: 0 PID: 7932 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 51.612322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.621776] Call Trace: [ 51.624355] dump_stack+0x1d3/0x2c6 [ 51.627966] ? dump_stack_print_info.cold.1+0x20/0x20 [ 51.633228] should_fail.cold.4+0xa/0x17 [ 51.637284] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.642378] ? __lock_acquire+0x62f/0x4c20 [ 51.646742] ? mark_held_locks+0x130/0x130 [ 51.651135] ? mark_held_locks+0x130/0x130 [ 51.655354] ? mark_held_locks+0x130/0x130 [ 51.659597] ? print_usage_bug+0xc0/0xc0 [ 51.663644] ? print_usage_bug+0xc0/0xc0 [ 51.667796] ? print_usage_bug+0xc0/0xc0 [ 51.671847] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.677512] ? should_fail+0x22d/0xd01 [ 51.681386] ? __lock_acquire+0x62f/0x4c20 [ 51.685627] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 51.690864] __alloc_pages_nodemask+0x366/0xea0 [ 51.695525] ? __lock_acquire+0x62f/0x4c20 [ 51.699746] ? graph_lock+0x270/0x270 [ 51.703531] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 51.708532] ? find_held_lock+0x36/0x1c0 [ 51.712594] ? ___might_sleep+0x1ed/0x300 [ 51.716732] ? trace_hardirqs_off+0xb8/0x310 [ 51.721138] cache_grow_begin+0x91/0x8c0 [ 51.725181] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.730699] ? check_preemption_disabled+0x48/0x280 [ 51.735701] kmem_cache_alloc_node_trace+0x670/0x740 [ 51.740787] ? is_bpf_text_address+0xd3/0x170 [ 51.745269] ? kernel_text_address+0x79/0xf0 [ 51.749693] __kmalloc_node+0x3c/0x70 [ 51.753487] kvmalloc_node+0x65/0xf0 [ 51.757181] alloc_netdev_mqs+0x17b/0xfe0 [ 51.761309] ? number+0x972/0xca0 [ 51.764742] ? x25_asy_connected+0x270/0x270 [ 51.769128] ? free_netdev+0x450/0x450 [ 51.772994] ? put_dec+0xf0/0xf0 [ 51.776340] ? format_decode+0x1b2/0xaf0 [ 51.780380] ? enable_ptr_key_workfn+0x30/0x30 [ 51.784943] ? graph_lock+0x270/0x270 [ 51.788730] ? trace_hardirqs_off+0xb8/0x310 [ 51.793122] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.798638] ? vsnprintf+0x20d/0x1b60 [ 51.802420] ? pointer+0x900/0x900 [ 51.805945] ? sprintf+0xb0/0xe0 [ 51.809298] ? scnprintf+0x130/0x130 [ 51.812999] ? __kasan_slab_free+0x119/0x150 [ 51.817389] x25_asy_open_tty+0x551/0x7e7 [ 51.821516] ? x25_asy_close_tty+0x220/0x220 [ 51.825917] ? down_write_nested+0x130/0x130 [ 51.830305] ? down_read+0x120/0x120 [ 51.833998] ? x25_asy_close_tty+0x220/0x220 [ 51.838403] tty_ldisc_open.isra.1+0x8b/0xe0 [ 51.842792] tty_set_ldisc+0x2dc/0x6a0 [ 51.846663] tty_ioctl+0x39d/0x17d0 [ 51.850275] ? tty_vhangup+0x30/0x30 [ 51.853973] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 51.859491] ? proc_fail_nth_write+0x9e/0x210 [ 51.863982] ? proc_cwd_link+0x1d0/0x1d0 [ 51.868053] ? trace_hardirqs_off+0xb8/0x310 [ 51.872580] ? find_held_lock+0x36/0x1c0 [ 51.876702] ? vfs_write+0x2f3/0x560 [ 51.880421] ? lock_downgrade+0x900/0x900 [ 51.883665] FAULT_INJECTION: forcing a failure. [ 51.883665] name failslab, interval 1, probability 0, space 0, times 0 [ 51.884598] ? __lock_is_held+0xb5/0x140 [ 51.884628] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.884642] ? __fget_light+0x2e9/0x430 [ 51.884664] ? fget_raw+0x20/0x20 [ 51.912888] ? __sb_end_write+0xd9/0x110 [ 51.916982] ? vfs_write+0x2ad/0x560 [ 51.920707] ? do_fast_syscall_32+0x150/0xfb2 [ 51.925234] tty_compat_ioctl+0x89/0x540 [ 51.929298] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 51.934493] ? tty_ioctl+0x17d0/0x17d0 [ 51.938385] __ia32_compat_sys_ioctl+0x20e/0x630 [ 51.943164] do_fast_syscall_32+0x34d/0xfb2 [ 51.947493] ? do_int80_syscall_32+0x890/0x890 [ 51.952111] ? entry_SYSENTER_compat+0x68/0x7f [ 51.956704] ? trace_hardirqs_off_caller+0xbb/0x310 [ 51.961724] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.966573] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.971443] ? trace_hardirqs_on_caller+0x310/0x310 [ 51.976472] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 51.981557] ? prepare_exit_to_usermode+0x291/0x3b0 [ 51.986624] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.991480] entry_SYSENTER_compat+0x70/0x7f [ 51.995884] RIP: 0023:0xf7f28a49 [ 51.999269] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 52.018170] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 52.025913] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 52.033183] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 52.040458] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 52.047748] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 52.055025] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.062345] CPU: 1 PID: 7930 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 52.069363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.078733] Call Trace: [ 52.081326] dump_stack+0x1d3/0x2c6 [ 52.084972] ? dump_stack_print_info.cold.1+0x20/0x20 [ 52.090177] ? find_held_lock+0x36/0x1c0 [ 52.094254] should_fail.cold.4+0xa/0x17 [ 52.098327] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.103445] ? graph_lock+0x270/0x270 [ 52.107253] ? print_usage_bug+0xc0/0xc0 [ 52.111317] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.116335] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 52.122157] ? kasan_check_write+0x14/0x20 [ 52.126405] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 52.131338] ? graph_lock+0x270/0x270 [ 52.135144] ? wait_for_completion+0x8a0/0x8a0 [ 52.139762] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.145309] ? check_preemption_disabled+0x48/0x280 [ 52.150346] ? __lock_is_held+0xb5/0x140 [ 52.154423] __should_failslab+0x124/0x180 [ 52.158675] should_failslab+0x9/0x14 [ 52.162481] kmem_cache_alloc_trace+0x4b/0x750 [ 52.167084] __hw_addr_create_ex+0xb2/0x3f0 [ 52.171417] ? dev_mc_init+0x170/0x170 [ 52.175336] __hw_addr_add_ex+0x1ef/0x2b0 [ 52.179496] dev_addr_init+0x169/0x260 [ 52.183407] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 52.187734] ? kasan_unpoison_shadow+0x35/0x50 [ 52.192324] ? kasan_kmalloc+0xc7/0xe0 [ 52.196222] ? __kmalloc_node+0x50/0x70 [ 52.200214] alloc_netdev_mqs+0x21b/0xfe0 [ 52.204385] ? number+0x972/0xca0 [ 52.207861] ? x25_asy_connected+0x270/0x270 [ 52.212279] ? free_netdev+0x450/0x450 [ 52.216197] ? put_dec+0xf0/0xf0 [ 52.219568] ? format_decode+0x1b2/0xaf0 [ 52.223646] ? enable_ptr_key_workfn+0x30/0x30 [ 52.228236] ? graph_lock+0x270/0x270 [ 52.232061] ? trace_hardirqs_off+0xb8/0x310 [ 52.236502] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.242070] ? vsnprintf+0x20d/0x1b60 [ 52.245903] ? pointer+0x900/0x900 [ 52.249461] ? sprintf+0xb0/0xe0 [ 52.252838] ? scnprintf+0x130/0x130 [ 52.256569] ? __kasan_slab_free+0x119/0x150 [ 52.260995] x25_asy_open_tty+0x551/0x7e7 [ 52.265181] ? x25_asy_close_tty+0x220/0x220 [ 52.269657] ? down_write_nested+0x130/0x130 [ 52.274077] ? down_read+0x120/0x120 [ 52.277806] ? x25_asy_close_tty+0x220/0x220 [ 52.282220] tty_ldisc_open.isra.1+0x8b/0xe0 [ 52.286650] tty_set_ldisc+0x2dc/0x6a0 [ 52.290551] tty_ioctl+0x39d/0x17d0 [ 52.294209] ? tty_vhangup+0x30/0x30 [ 52.297961] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 52.303515] ? proc_fail_nth_write+0x9e/0x210 [ 52.308042] ? proc_cwd_link+0x1d0/0x1d0 [ 52.312116] ? trace_hardirqs_off+0xb8/0x310 [ 52.316529] ? find_held_lock+0x36/0x1c0 [ 52.320609] ? vfs_write+0x2f3/0x560 [ 52.324334] ? lock_downgrade+0x900/0x900 [ 52.328505] ? __lock_is_held+0xb5/0x140 [ 52.332603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.338146] ? __fget_light+0x2e9/0x430 [ 52.342131] ? fget_raw+0x20/0x20 [ 52.345594] ? __sb_end_write+0xd9/0x110 [ 52.349665] ? vfs_write+0x2ad/0x560 [ 52.353405] ? do_fast_syscall_32+0x150/0xfb2 [ 52.357932] tty_compat_ioctl+0x89/0x540 [ 52.362014] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 52.367210] ? tty_ioctl+0x17d0/0x17d0 [ 52.371118] __ia32_compat_sys_ioctl+0x20e/0x630 [ 52.375884] do_fast_syscall_32+0x34d/0xfb2 [ 52.380223] ? do_int80_syscall_32+0x890/0x890 [ 52.384820] ? entry_SYSENTER_compat+0x68/0x7f [ 52.389410] ? trace_hardirqs_off_caller+0xbb/0x310 [ 52.394436] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.399301] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.404165] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.409192] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.414217] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.419239] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.424090] entry_SYSENTER_compat+0x70/0x7f [ 52.428504] RIP: 0023:0xf7f28a49 [ 52.431909] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 52.450811] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 52.458526] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 52.465800] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 52.473068] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 52.480338] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 52.487670] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.494963] CPU: 0 PID: 7929 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 52.502013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.511360] Call Trace: [ 52.513969] dump_stack+0x1d3/0x2c6 [ 52.517629] ? dump_stack_print_info.cold.1+0x20/0x20 [ 52.522838] ? find_held_lock+0x36/0x1c0 [ 52.526914] should_fail.cold.4+0xa/0x17 [ 52.530997] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.536106] ? graph_lock+0x270/0x270 [ 52.539917] ? print_usage_bug+0xc0/0xc0 [ 52.544005] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.549027] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 52.554862] ? kasan_check_write+0x14/0x20 [ 52.559110] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 52.564047] ? graph_lock+0x270/0x270 [ 52.567854] ? wait_for_completion+0x8a0/0x8a0 [ 52.572449] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.577994] ? check_preemption_disabled+0x48/0x280 [ 52.583026] ? __lock_is_held+0xb5/0x140 [ 52.587112] __should_failslab+0x124/0x180 [ 52.591373] should_failslab+0x9/0x14 [ 52.595182] kmem_cache_alloc_trace+0x4b/0x750 [ 52.599778] __hw_addr_create_ex+0xb2/0x3f0 [ 52.604108] ? dev_mc_init+0x170/0x170 [ 52.608028] __hw_addr_add_ex+0x1ef/0x2b0 [ 52.612193] dev_addr_init+0x169/0x260 [ 52.616085] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 52.620423] ? kasan_unpoison_shadow+0x35/0x50 [ 52.625014] ? kasan_kmalloc+0xc7/0xe0 [ 52.628928] ? __kmalloc_node+0x50/0x70 [ 52.632929] alloc_netdev_mqs+0x21b/0xfe0 [ 52.637083] ? number+0x972/0xca0 [ 52.640541] ? x25_asy_connected+0x270/0x270 [ 52.644954] ? free_netdev+0x450/0x450 [ 52.648859] ? put_dec+0xf0/0xf0 [ 52.652249] ? format_decode+0x1b2/0xaf0 [ 52.656339] ? enable_ptr_key_workfn+0x30/0x30 [ 52.660958] ? graph_lock+0x270/0x270 [ 52.664785] ? trace_hardirqs_off+0xb8/0x310 [ 52.669221] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.674778] ? vsnprintf+0x20d/0x1b60 [ 52.678635] ? pointer+0x900/0x900 [ 52.682205] ? sprintf+0xb0/0xe0 [ 52.685620] ? scnprintf+0x130/0x130 [ 52.689345] ? __kasan_slab_free+0x119/0x150 [ 52.693762] x25_asy_open_tty+0x551/0x7e7 [ 52.697915] ? x25_asy_close_tty+0x220/0x220 [ 52.702338] ? down_write_nested+0x130/0x130 [ 52.706746] ? down_read+0x120/0x120 [ 52.710464] ? x25_asy_close_tty+0x220/0x220 [ 52.714876] tty_ldisc_open.isra.1+0x8b/0xe0 [ 52.719292] tty_set_ldisc+0x2dc/0x6a0 [ 52.723203] tty_ioctl+0x39d/0x17d0 [ 52.726835] ? tty_vhangup+0x30/0x30 [ 52.730561] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 52.736106] ? proc_fail_nth_write+0x9e/0x210 [ 52.740616] ? proc_cwd_link+0x1d0/0x1d0 [ 52.744689] ? trace_hardirqs_off+0xb8/0x310 [ 52.749102] ? find_held_lock+0x36/0x1c0 [ 52.753301] ? vfs_write+0x2f3/0x560 [ 52.757018] ? lock_downgrade+0x900/0x900 [ 52.761170] ? __lock_is_held+0xb5/0x140 [ 52.765234] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.770776] ? __fget_light+0x2e9/0x430 [ 52.774761] ? fget_raw+0x20/0x20 [ 52.778219] ? __sb_end_write+0xd9/0x110 [ 52.782291] ? vfs_write+0x2ad/0x560 [ 52.786018] ? do_fast_syscall_32+0x150/0xfb2 [ 52.790574] tty_compat_ioctl+0x89/0x540 [ 52.794674] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 52.799873] ? tty_ioctl+0x17d0/0x17d0 [ 52.803769] __ia32_compat_sys_ioctl+0x20e/0x630 [ 52.808547] do_fast_syscall_32+0x34d/0xfb2 [ 52.812872] ? do_int80_syscall_32+0x890/0x890 [ 52.817462] ? entry_SYSENTER_compat+0x68/0x7f [ 52.822084] ? trace_hardirqs_off_caller+0xbb/0x310 [ 52.827156] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.832007] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.836853] ? trace_hardirqs_on_caller+0x310/0x310 [ 52.841880] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 52.846917] ? prepare_exit_to_usermode+0x291/0x3b0 [ 52.851958] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.856814] entry_SYSENTER_compat+0x70/0x7f [ 52.861240] RIP: 0023:0xf7f28a49 [ 52.864626] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 52.883543] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 52.891260] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 52.898574] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 52.905857] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 52.913134] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 52.920417] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 52.927728] CPU: 1 PID: 7933 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 52.934770] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.943949] FAULT_INJECTION: forcing a failure. [ 52.943949] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 52.944149] Call Trace: [ 52.958516] dump_stack+0x1d3/0x2c6 [ 52.962149] ? dump_stack_print_info.cold.1+0x20/0x20 [ 52.967351] ? find_held_lock+0x36/0x1c0 [ 52.971432] should_fail.cold.4+0xa/0x17 [ 52.975498] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 52.980626] ? graph_lock+0x270/0x270 [ 52.984430] ? print_usage_bug+0xc0/0xc0 [ 52.988542] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.993594] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 52.999419] ? kasan_check_write+0x14/0x20 [ 53.003652] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 53.008596] ? graph_lock+0x270/0x270 [ 53.012397] ? wait_for_completion+0x8a0/0x8a0 [ 53.016987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.022548] ? check_preemption_disabled+0x48/0x280 [ 53.027608] ? __lock_is_held+0xb5/0x140 [ 53.031712] __should_failslab+0x124/0x180 [ 53.035963] should_failslab+0x9/0x14 [ 53.039771] kmem_cache_alloc_trace+0x4b/0x750 [ 53.044366] __hw_addr_create_ex+0xb2/0x3f0 [ 53.048692] ? dev_mc_init+0x170/0x170 [ 53.052623] __hw_addr_add_ex+0x1ef/0x2b0 [ 53.056780] dev_addr_init+0x169/0x260 [ 53.060670] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 53.064989] ? kasan_unpoison_shadow+0x35/0x50 [ 53.069598] ? kasan_kmalloc+0xc7/0xe0 [ 53.073505] ? __kmalloc_node+0x50/0x70 [ 53.077497] alloc_netdev_mqs+0x21b/0xfe0 [ 53.081643] ? number+0x972/0xca0 [ 53.085102] ? x25_asy_connected+0x270/0x270 [ 53.089517] ? free_netdev+0x450/0x450 [ 53.093403] ? put_dec+0xf0/0xf0 [ 53.096783] ? format_decode+0x1b2/0xaf0 [ 53.100846] ? enable_ptr_key_workfn+0x30/0x30 [ 53.105426] ? graph_lock+0x270/0x270 [ 53.109228] ? trace_hardirqs_off+0xb8/0x310 [ 53.113660] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.119200] ? vsnprintf+0x20d/0x1b60 [ 53.123029] ? pointer+0x900/0x900 [ 53.126639] ? sprintf+0xb0/0xe0 [ 53.130005] ? scnprintf+0x130/0x130 [ 53.133753] ? __kasan_slab_free+0x119/0x150 [ 53.138312] x25_asy_open_tty+0x551/0x7e7 [ 53.142494] ? x25_asy_close_tty+0x220/0x220 [ 53.146937] ? down_write_nested+0x130/0x130 [ 53.151346] ? down_read+0x120/0x120 [ 53.155061] ? x25_asy_close_tty+0x220/0x220 [ 53.159485] tty_ldisc_open.isra.1+0x8b/0xe0 [ 53.163908] tty_set_ldisc+0x2dc/0x6a0 [ 53.167802] tty_ioctl+0x39d/0x17d0 [ 53.171434] ? tty_vhangup+0x30/0x30 [ 53.175151] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.180688] ? proc_fail_nth_write+0x9e/0x210 [ 53.185206] ? proc_cwd_link+0x1d0/0x1d0 [ 53.189281] ? trace_hardirqs_off+0xb8/0x310 [ 53.193696] ? find_held_lock+0x36/0x1c0 [ 53.197785] ? vfs_write+0x2f3/0x560 [ 53.201530] ? lock_downgrade+0x900/0x900 [ 53.205688] ? __lock_is_held+0xb5/0x140 [ 53.209772] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.215342] ? __fget_light+0x2e9/0x430 [ 53.219322] ? fget_raw+0x20/0x20 [ 53.222791] ? __sb_end_write+0xd9/0x110 [ 53.226855] ? vfs_write+0x2ad/0x560 [ 53.230575] ? do_fast_syscall_32+0x150/0xfb2 [ 53.235098] tty_compat_ioctl+0x89/0x540 [ 53.239186] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 53.244383] ? tty_ioctl+0x17d0/0x17d0 [ 53.248288] __ia32_compat_sys_ioctl+0x20e/0x630 [ 53.253056] do_fast_syscall_32+0x34d/0xfb2 [ 53.257391] ? do_int80_syscall_32+0x890/0x890 [ 53.262008] ? entry_SYSENTER_compat+0x68/0x7f [ 53.266613] ? trace_hardirqs_off_caller+0xbb/0x310 [ 53.271639] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.276485] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.281376] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.286396] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.291416] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.296485] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.301336] entry_SYSENTER_compat+0x70/0x7f [ 53.305763] RIP: 0023:0xf7f28a49 [ 53.309137] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 53.328036] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 53.335742] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 53.343011] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 53.350305] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 53.357610] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.364891] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.372182] CPU: 0 PID: 7935 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 53.379202] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.381195] FAULT_INJECTION: forcing a failure. [ 53.381195] name failslab, interval 1, probability 0, space 0, times 0 [ 53.388557] Call Trace: [ 53.388575] dump_stack+0x1d3/0x2c6 [ 53.388604] ? dump_stack_print_info.cold.1+0x20/0x20 [ 53.388637] should_fail.cold.4+0xa/0x17 [ 53.388653] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.388670] ? __lock_acquire+0x62f/0x4c20 [ 53.388696] ? mark_held_locks+0x130/0x130 [ 53.388714] ? mark_held_locks+0x130/0x130 [ 53.388735] ? mark_held_locks+0x130/0x130 [ 53.388753] ? print_usage_bug+0xc0/0xc0 [ 53.388769] ? print_usage_bug+0xc0/0xc0 [ 53.388793] ? print_usage_bug+0xc0/0xc0 [ 53.449568] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.455128] ? should_fail+0x22d/0xd01 [ 53.459031] ? __lock_acquire+0x62f/0x4c20 [ 53.463292] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.468425] __alloc_pages_nodemask+0x366/0xea0 [ 53.473103] ? __lock_acquire+0x62f/0x4c20 [ 53.477342] ? graph_lock+0x270/0x270 [ 53.481185] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 53.486214] ? find_held_lock+0x36/0x1c0 [ 53.490293] ? ___might_sleep+0x1ed/0x300 [ 53.494453] ? trace_hardirqs_off+0xb8/0x310 [ 53.498902] cache_grow_begin+0x91/0x8c0 [ 53.502974] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.508547] ? check_preemption_disabled+0x48/0x280 [ 53.513679] kmem_cache_alloc_node_trace+0x670/0x740 [ 53.518799] ? is_bpf_text_address+0xd3/0x170 [ 53.523299] ? kernel_text_address+0x79/0xf0 [ 53.527720] __kmalloc_node+0x3c/0x70 [ 53.531536] kvmalloc_node+0x65/0xf0 [ 53.535257] alloc_netdev_mqs+0x17b/0xfe0 [ 53.539410] ? number+0x972/0xca0 [ 53.542915] ? x25_asy_connected+0x270/0x270 [ 53.547346] ? free_netdev+0x450/0x450 [ 53.551238] ? put_dec+0xf0/0xf0 [ 53.554640] ? format_decode+0x1b2/0xaf0 [ 53.558731] ? enable_ptr_key_workfn+0x30/0x30 [ 53.563319] ? graph_lock+0x270/0x270 [ 53.567130] ? trace_hardirqs_off+0xb8/0x310 [ 53.571547] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 53.577109] ? vsnprintf+0x20d/0x1b60 [ 53.580923] ? pointer+0x900/0x900 [ 53.584488] ? sprintf+0xb0/0xe0 [ 53.587858] ? scnprintf+0x130/0x130 [ 53.591602] ? __kasan_slab_free+0x119/0x150 [ 53.596031] x25_asy_open_tty+0x551/0x7e7 [ 53.600184] ? x25_asy_close_tty+0x220/0x220 [ 53.604601] ? down_write_nested+0x130/0x130 [ 53.609045] ? down_read+0x120/0x120 [ 53.612781] ? x25_asy_close_tty+0x220/0x220 [ 53.617647] tty_ldisc_open.isra.1+0x8b/0xe0 [ 53.622079] tty_set_ldisc+0x2dc/0x6a0 [ 53.625994] tty_ioctl+0x39d/0x17d0 [ 53.629635] ? tty_vhangup+0x30/0x30 [ 53.633354] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 53.638896] ? proc_fail_nth_write+0x9e/0x210 [ 53.643393] ? proc_cwd_link+0x1d0/0x1d0 [ 53.647459] ? trace_hardirqs_off+0xb8/0x310 [ 53.651870] ? find_held_lock+0x36/0x1c0 [ 53.655952] ? vfs_write+0x2f3/0x560 [ 53.659670] ? lock_downgrade+0x900/0x900 [ 53.663826] ? __lock_is_held+0xb5/0x140 [ 53.667896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.673449] ? __fget_light+0x2e9/0x430 [ 53.677438] ? fget_raw+0x20/0x20 [ 53.680913] ? __sb_end_write+0xd9/0x110 [ 53.684973] ? vfs_write+0x2ad/0x560 [ 53.688700] ? do_fast_syscall_32+0x150/0xfb2 [ 53.693206] tty_compat_ioctl+0x89/0x540 [ 53.697274] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 53.702468] ? tty_ioctl+0x17d0/0x17d0 [ 53.706371] __ia32_compat_sys_ioctl+0x20e/0x630 [ 53.711136] do_fast_syscall_32+0x34d/0xfb2 [ 53.715466] ? do_int80_syscall_32+0x890/0x890 [ 53.720048] ? entry_SYSENTER_compat+0x68/0x7f [ 53.724645] ? trace_hardirqs_off_caller+0xbb/0x310 [ 53.729666] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.734504] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.739365] ? trace_hardirqs_on_caller+0x310/0x310 [ 53.739382] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 53.739399] ? prepare_exit_to_usermode+0x291/0x3b0 [ 53.739418] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.739439] entry_SYSENTER_compat+0x70/0x7f [ 53.759349] RIP: 0023:0xf7f28a49 [ 53.759365] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 53.759373] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 53.759386] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 53.759395] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 53.759407] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 53.786151] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.786161] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 53.795101] FAULT_INJECTION: forcing a failure. [ 53.795101] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 53.804994] CPU: 1 PID: 7934 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 53.849143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.858487] Call Trace: [ 53.861089] dump_stack+0x1d3/0x2c6 [ 53.864744] ? dump_stack_print_info.cold.1+0x20/0x20 [ 53.869937] ? find_held_lock+0x36/0x1c0 [ 53.874009] should_fail.cold.4+0xa/0x17 [ 53.878076] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 53.883182] ? graph_lock+0x270/0x270 [ 53.887000] ? print_usage_bug+0xc0/0xc0 [ 53.891096] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 53.896138] ? pcpu_next_fit_region.constprop.20+0x334/0x410 [ 53.901955] ? kasan_check_write+0x14/0x20 [ 53.906199] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 53.911131] ? graph_lock+0x270/0x270 [ 53.914944] ? wait_for_completion+0x8a0/0x8a0 [ 53.919548] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 53.925137] ? check_preemption_disabled+0x48/0x280 [ 53.930223] ? __lock_is_held+0xb5/0x140 [ 53.934320] __should_failslab+0x124/0x180 [ 53.938573] should_failslab+0x9/0x14 [ 53.942415] kmem_cache_alloc_trace+0x4b/0x750 [ 53.947004] __hw_addr_create_ex+0xb2/0x3f0 [ 53.951322] ? dev_mc_init+0x170/0x170 [ 53.955221] __hw_addr_add_ex+0x1ef/0x2b0 [ 53.959378] dev_addr_init+0x169/0x260 [ 53.963264] ? __hw_addr_add_ex+0x2b0/0x2b0 [ 53.967593] ? kasan_unpoison_shadow+0x35/0x50 [ 53.972210] ? kasan_kmalloc+0xc7/0xe0 [ 53.976103] ? __kmalloc_node+0x50/0x70 [ 53.980101] alloc_netdev_mqs+0x21b/0xfe0 [ 53.984268] ? number+0x972/0xca0 [ 53.987728] ? x25_asy_connected+0x270/0x270 [ 53.992146] ? free_netdev+0x450/0x450 [ 53.996054] ? put_dec+0xf0/0xf0 [ 53.999430] ? format_decode+0x1b2/0xaf0 [ 54.003494] ? enable_ptr_key_workfn+0x30/0x30 [ 54.008083] ? graph_lock+0x270/0x270 [ 54.011907] ? trace_hardirqs_off+0xb8/0x310 [ 54.016339] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.021908] ? vsnprintf+0x20d/0x1b60 [ 54.025737] ? pointer+0x900/0x900 [ 54.029290] ? sprintf+0xb0/0xe0 [ 54.032655] ? scnprintf+0x130/0x130 [ 54.036370] ? __kasan_slab_free+0x119/0x150 [ 54.040786] x25_asy_open_tty+0x551/0x7e7 [ 54.044949] ? x25_asy_close_tty+0x220/0x220 [ 54.049357] ? down_write_nested+0x130/0x130 [ 54.053764] ? down_read+0x120/0x120 [ 54.057477] ? x25_asy_close_tty+0x220/0x220 [ 54.061883] tty_ldisc_open.isra.1+0x8b/0xe0 [ 54.066292] tty_set_ldisc+0x2dc/0x6a0 [ 54.070187] tty_ioctl+0x39d/0x17d0 [ 54.073867] ? tty_vhangup+0x30/0x30 [ 54.077592] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 54.083145] ? proc_fail_nth_write+0x9e/0x210 [ 54.087639] ? proc_cwd_link+0x1d0/0x1d0 [ 54.091704] ? trace_hardirqs_off+0xb8/0x310 [ 54.096125] ? find_held_lock+0x36/0x1c0 [ 54.100201] ? vfs_write+0x2f3/0x560 [ 54.103917] ? lock_downgrade+0x900/0x900 [ 54.108074] ? __lock_is_held+0xb5/0x140 [ 54.112151] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.117689] ? __fget_light+0x2e9/0x430 [ 54.121669] ? fget_raw+0x20/0x20 [ 54.125132] ? __sb_end_write+0xd9/0x110 [ 54.129195] ? vfs_write+0x2ad/0x560 [ 54.132961] ? do_fast_syscall_32+0x150/0xfb2 [ 54.137479] tty_compat_ioctl+0x89/0x540 [ 54.141555] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 54.146768] ? tty_ioctl+0x17d0/0x17d0 [ 54.150658] __ia32_compat_sys_ioctl+0x20e/0x630 [ 54.155422] do_fast_syscall_32+0x34d/0xfb2 [ 54.159765] ? do_int80_syscall_32+0x890/0x890 [ 54.164364] ? entry_SYSENTER_compat+0x68/0x7f [ 54.168961] ? trace_hardirqs_off_caller+0xbb/0x310 [ 54.173981] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.178826] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.183671] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.188689] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 54.193709] ? prepare_exit_to_usermode+0x291/0x3b0 [ 54.198765] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.203645] entry_SYSENTER_compat+0x70/0x7f [ 54.208052] RIP: 0023:0xf7f28a49 [ 54.211417] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 54.230332] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 54.238040] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 54.245309] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 54.252574] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 54.259867] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 54.267140] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 54.274430] CPU: 0 PID: 7936 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 54.281448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.281453] Call Trace: [ 54.281473] dump_stack+0x1d3/0x2c6 [ 54.281494] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.281519] should_fail.cold.4+0xa/0x17 [ 54.293454] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.293473] ? __lock_acquire+0x62f/0x4c20 [ 54.293516] ? mark_held_locks+0x130/0x130 [ 54.293534] ? mark_held_locks+0x130/0x130 [ 54.293555] ? mark_held_locks+0x130/0x130 [ 54.293576] ? print_usage_bug+0xc0/0xc0 [ 54.302388] ? print_usage_bug+0xc0/0xc0 [ 54.302408] ? print_usage_bug+0xc0/0xc0 [ 54.302427] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.302440] ? should_fail+0x22d/0xd01 [ 54.302456] ? __lock_acquire+0x62f/0x4c20 [ 54.302477] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.311634] __alloc_pages_nodemask+0x366/0xea0 [ 54.311650] ? __lock_acquire+0x62f/0x4c20 [ 54.311664] ? graph_lock+0x270/0x270 [ 54.311682] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 54.320147] ? find_held_lock+0x36/0x1c0 [ 54.320202] ? ___might_sleep+0x1ed/0x300 [ 54.320222] ? trace_hardirqs_off+0xb8/0x310 [ 54.328666] cache_grow_begin+0x91/0x8c0 [ 54.328683] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.328697] ? check_preemption_disabled+0x48/0x280 [ 54.328718] kmem_cache_alloc_node_trace+0x670/0x740 [ 54.336809] ? is_bpf_text_address+0xd3/0x170 [ 54.336826] ? kernel_text_address+0x79/0xf0 [ 54.336848] __kmalloc_node+0x3c/0x70 [ 54.336866] kvmalloc_node+0x65/0xf0 [ 54.346436] alloc_netdev_mqs+0x17b/0xfe0 [ 54.346449] ? number+0x972/0xca0 [ 54.346465] ? x25_asy_connected+0x270/0x270 [ 54.346478] ? free_netdev+0x450/0x450 [ 54.346493] ? put_dec+0xf0/0xf0 [ 54.346506] ? format_decode+0x1b2/0xaf0 [ 54.346524] ? enable_ptr_key_workfn+0x30/0x30 [ 54.354636] ? graph_lock+0x270/0x270 [ 54.354652] ? trace_hardirqs_off+0xb8/0x310 [ 54.354674] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.354688] ? vsnprintf+0x20d/0x1b60 [ 54.354709] ? pointer+0x900/0x900 [ 54.354733] ? sprintf+0xb0/0xe0 [ 54.354750] ? scnprintf+0x130/0x130 [ 54.372072] FAULT_INJECTION: forcing a failure. [ 54.372072] name failslab, interval 1, probability 0, space 0, times 0 [ 54.372549] ? __kasan_slab_free+0x119/0x150 [ 54.372570] x25_asy_open_tty+0x551/0x7e7 [ 54.372595] ? x25_asy_close_tty+0x220/0x220 [ 54.372618] ? down_write_nested+0x130/0x130 [ 54.372635] ? down_read+0x120/0x120 [ 54.380482] FAULT_INJECTION: forcing a failure. [ 54.380482] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.381727] ? x25_asy_close_tty+0x220/0x220 [ 54.530536] tty_ldisc_open.isra.1+0x8b/0xe0 [ 54.534982] tty_set_ldisc+0x2dc/0x6a0 [ 54.538879] tty_ioctl+0x39d/0x17d0 [ 54.542511] ? tty_vhangup+0x30/0x30 [ 54.546224] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 54.551764] ? proc_fail_nth_write+0x9e/0x210 [ 54.556260] ? proc_cwd_link+0x1d0/0x1d0 [ 54.560327] ? trace_hardirqs_off+0xb8/0x310 [ 54.564756] ? find_held_lock+0x36/0x1c0 [ 54.568828] ? vfs_write+0x2f3/0x560 [ 54.572543] ? lock_downgrade+0x900/0x900 [ 54.576768] ? __lock_is_held+0xb5/0x140 [ 54.580864] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.586428] ? __fget_light+0x2e9/0x430 [ 54.590419] ? fget_raw+0x20/0x20 [ 54.593875] ? __sb_end_write+0xd9/0x110 [ 54.597953] ? vfs_write+0x2ad/0x560 [ 54.601675] ? do_fast_syscall_32+0x150/0xfb2 [ 54.606191] tty_compat_ioctl+0x89/0x540 [ 54.610258] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 54.615464] ? tty_ioctl+0x17d0/0x17d0 [ 54.619357] __ia32_compat_sys_ioctl+0x20e/0x630 [ 54.624132] do_fast_syscall_32+0x34d/0xfb2 [ 54.628461] ? do_int80_syscall_32+0x890/0x890 [ 54.633058] ? entry_SYSENTER_compat+0x68/0x7f [ 54.637641] ? trace_hardirqs_off_caller+0xbb/0x310 [ 54.642687] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.647527] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.652382] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.657412] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 54.662425] ? prepare_exit_to_usermode+0x291/0x3b0 [ 54.667443] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.672290] entry_SYSENTER_compat+0x70/0x7f [ 54.676712] RIP: 0023:0xf7f28a49 [ 54.680076] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 54.698987] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 54.706726] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 54.714011] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 54.721277] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 54.728540] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 54.735805] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 54.743104] CPU: 1 PID: 7938 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 54.750389] x25_asy: x25_asy_alloc(): register_netdev() failure [ 54.750649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.759580] x25_asy: x25_asy_alloc(): register_netdev() failure [ 54.766032] Call Trace: [ 54.766082] dump_stack+0x1d3/0x2c6 [ 54.766101] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.766149] should_fail.cold.4+0xa/0x17 [ 54.766167] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.766185] ? __lock_acquire+0x62f/0x4c20 [ 54.774348] x25_asy: x25_asy_alloc(): register_netdev() failure [ 54.774829] ? mark_held_locks+0x130/0x130 [ 54.774849] ? mark_held_locks+0x130/0x130 [ 54.774885] ? mark_held_locks+0x130/0x130 [ 54.774917] ? print_usage_bug+0xc0/0xc0 [ 54.786546] FAULT_INJECTION: forcing a failure. [ 54.786546] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 54.787782] ? print_usage_bug+0xc0/0xc0 [ 54.835667] ? print_usage_bug+0xc0/0xc0 [ 54.839745] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.845275] ? should_fail+0x22d/0xd01 [ 54.849167] ? __lock_acquire+0x62f/0x4c20 [ 54.853398] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 54.858525] __alloc_pages_nodemask+0x366/0xea0 [ 54.863195] ? __lock_acquire+0x62f/0x4c20 [ 54.867431] ? graph_lock+0x270/0x270 [ 54.871233] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 54.876262] ? find_held_lock+0x36/0x1c0 [ 54.880352] ? ___might_sleep+0x1ed/0x300 [ 54.884530] ? trace_hardirqs_off+0xb8/0x310 [ 54.888947] cache_grow_begin+0x91/0x8c0 [ 54.893024] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.898558] ? check_preemption_disabled+0x48/0x280 [ 54.903594] kmem_cache_alloc_node_trace+0x670/0x740 [ 54.908726] ? is_bpf_text_address+0xd3/0x170 [ 54.913226] ? kernel_text_address+0x79/0xf0 [ 54.917643] __kmalloc_node+0x3c/0x70 [ 54.921448] kvmalloc_node+0x65/0xf0 [ 54.925165] alloc_netdev_mqs+0x17b/0xfe0 [ 54.929312] ? number+0x972/0xca0 [ 54.932770] ? x25_asy_connected+0x270/0x270 [ 54.937203] ? free_netdev+0x450/0x450 [ 54.941092] ? put_dec+0xf0/0xf0 [ 54.944456] ? format_decode+0x1b2/0xaf0 [ 54.948519] ? enable_ptr_key_workfn+0x30/0x30 [ 54.953096] ? graph_lock+0x270/0x270 [ 54.956914] ? trace_hardirqs_off+0xb8/0x310 [ 54.961334] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.966868] ? vsnprintf+0x20d/0x1b60 [ 54.970674] ? pointer+0x900/0x900 [ 54.974226] ? sprintf+0xb0/0xe0 [ 54.977596] ? scnprintf+0x130/0x130 [ 54.981326] ? __kasan_slab_free+0x119/0x150 [ 54.985744] x25_asy_open_tty+0x551/0x7e7 [ 54.989892] ? x25_asy_close_tty+0x220/0x220 [ 54.994325] ? down_write_nested+0x130/0x130 [ 54.998731] ? down_read+0x120/0x120 [ 55.002444] ? x25_asy_close_tty+0x220/0x220 [ 55.006863] tty_ldisc_open.isra.1+0x8b/0xe0 [ 55.011268] tty_set_ldisc+0x2dc/0x6a0 [ 55.015201] tty_ioctl+0x39d/0x17d0 [ 55.018836] ? tty_vhangup+0x30/0x30 [ 55.022555] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.028102] ? proc_fail_nth_write+0x9e/0x210 [ 55.032607] ? proc_cwd_link+0x1d0/0x1d0 [ 55.036685] ? trace_hardirqs_off+0xb8/0x310 [ 55.041116] ? find_held_lock+0x36/0x1c0 [ 55.045193] ? vfs_write+0x2f3/0x560 [ 55.048906] ? lock_downgrade+0x900/0x900 [ 55.053076] ? __lock_is_held+0xb5/0x140 [ 55.057183] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.062729] ? __fget_light+0x2e9/0x430 [ 55.066706] ? fget_raw+0x20/0x20 [ 55.070161] ? __sb_end_write+0xd9/0x110 [ 55.074228] ? vfs_write+0x2ad/0x560 [ 55.077950] ? do_fast_syscall_32+0x150/0xfb2 [ 55.082455] tty_compat_ioctl+0x89/0x540 [ 55.086523] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 55.091719] ? tty_ioctl+0x17d0/0x17d0 [ 55.095625] __ia32_compat_sys_ioctl+0x20e/0x630 [ 55.100404] do_fast_syscall_32+0x34d/0xfb2 [ 55.104733] ? do_int80_syscall_32+0x890/0x890 [ 55.109332] ? entry_SYSENTER_compat+0x68/0x7f [ 55.113916] ? trace_hardirqs_off_caller+0xbb/0x310 [ 55.118934] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.123815] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.128678] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.133709] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 55.138743] ? prepare_exit_to_usermode+0x291/0x3b0 [ 55.143797] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.148649] entry_SYSENTER_compat+0x70/0x7f [ 55.153074] RIP: 0023:0xf7f28a49 [ 55.156455] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 55.175354] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 55.183059] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 55.190340] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 55.197607] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 55.204875] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 55.212141] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.219427] CPU: 0 PID: 7940 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 55.226447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.235800] Call Trace: [ 55.238421] dump_stack+0x1d3/0x2c6 [ 55.242066] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.247272] should_fail.cold.4+0xa/0x17 [ 55.251343] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.256452] ? __lock_acquire+0x62f/0x4c20 [ 55.260706] ? mark_held_locks+0x130/0x130 [ 55.264947] ? mark_held_locks+0x130/0x130 [ 55.269193] ? mark_held_locks+0x130/0x130 [ 55.273455] ? print_usage_bug+0xc0/0xc0 [ 55.277520] ? print_usage_bug+0xc0/0xc0 [ 55.281597] ? print_usage_bug+0xc0/0xc0 [ 55.285674] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.291212] ? should_fail+0x22d/0xd01 [ 55.295105] ? __lock_acquire+0x62f/0x4c20 [ 55.299341] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.304468] __alloc_pages_nodemask+0x366/0xea0 [ 55.309156] ? __lock_acquire+0x62f/0x4c20 [ 55.313413] ? graph_lock+0x270/0x270 [ 55.317226] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 55.322256] ? find_held_lock+0x36/0x1c0 [ 55.326347] ? ___might_sleep+0x1ed/0x300 [ 55.330503] ? trace_hardirqs_off+0xb8/0x310 [ 55.334921] cache_grow_begin+0x91/0x8c0 [ 55.338989] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.344533] ? check_preemption_disabled+0x48/0x280 [ 55.349575] kmem_cache_alloc_node_trace+0x670/0x740 [ 55.351283] FAULT_INJECTION: forcing a failure. [ 55.351283] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 55.354706] ? is_bpf_text_address+0xd3/0x170 [ 55.370973] ? kernel_text_address+0x79/0xf0 [ 55.375392] __kmalloc_node+0x3c/0x70 [ 55.379194] kvmalloc_node+0x65/0xf0 [ 55.382910] alloc_netdev_mqs+0x17b/0xfe0 [ 55.387057] ? number+0x972/0xca0 [ 55.390513] ? x25_asy_connected+0x270/0x270 [ 55.394925] ? free_netdev+0x450/0x450 [ 55.398835] ? put_dec+0xf0/0xf0 [ 55.402202] ? format_decode+0x1b2/0xaf0 [ 55.406282] ? enable_ptr_key_workfn+0x30/0x30 [ 55.410863] ? graph_lock+0x270/0x270 [ 55.414668] ? trace_hardirqs_off+0xb8/0x310 [ 55.419084] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.424631] ? vsnprintf+0x20d/0x1b60 [ 55.428443] ? pointer+0x900/0x900 [ 55.431994] ? sprintf+0xb0/0xe0 [ 55.435362] ? scnprintf+0x130/0x130 [ 55.439082] ? __kasan_slab_free+0x119/0x150 [ 55.443513] x25_asy_open_tty+0x551/0x7e7 [ 55.447668] ? x25_asy_close_tty+0x220/0x220 [ 55.452084] ? down_write_nested+0x130/0x130 [ 55.456494] ? down_read+0x120/0x120 [ 55.460215] ? x25_asy_close_tty+0x220/0x220 [ 55.464630] tty_ldisc_open.isra.1+0x8b/0xe0 [ 55.469043] tty_set_ldisc+0x2dc/0x6a0 [ 55.472955] tty_ioctl+0x39d/0x17d0 [ 55.476598] ? tty_vhangup+0x30/0x30 [ 55.480319] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.485870] ? proc_fail_nth_write+0x9e/0x210 [ 55.490386] ? proc_cwd_link+0x1d0/0x1d0 [ 55.494469] ? trace_hardirqs_off+0xb8/0x310 [ 55.498909] ? find_held_lock+0x36/0x1c0 [ 55.502983] ? vfs_write+0x2f3/0x560 [ 55.506704] ? lock_downgrade+0x900/0x900 [ 55.510873] ? __lock_is_held+0xb5/0x140 [ 55.514946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.520486] ? __fget_light+0x2e9/0x430 [ 55.524466] ? fget_raw+0x20/0x20 [ 55.527921] ? __sb_end_write+0xd9/0x110 [ 55.531987] ? vfs_write+0x2ad/0x560 [ 55.535712] ? do_fast_syscall_32+0x150/0xfb2 [ 55.540215] tty_compat_ioctl+0x89/0x540 [ 55.544313] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 55.549505] ? tty_ioctl+0x17d0/0x17d0 [ 55.553398] __ia32_compat_sys_ioctl+0x20e/0x630 [ 55.558178] do_fast_syscall_32+0x34d/0xfb2 [ 55.562510] ? do_int80_syscall_32+0x890/0x890 [ 55.567097] ? entry_SYSENTER_compat+0x68/0x7f [ 55.571682] ? trace_hardirqs_off_caller+0xbb/0x310 [ 55.576701] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.581583] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.586459] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.591480] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 55.596513] ? prepare_exit_to_usermode+0x291/0x3b0 [ 55.601552] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.606398] entry_SYSENTER_compat+0x70/0x7f [ 55.610818] RIP: 0023:0xf7f28a49 [ 55.614190] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 55.633552] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 55.641286] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 55.648557] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 55.655831] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 55.663113] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 55.670394] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 55.677684] CPU: 1 PID: 7941 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 55.684702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.690280] FAULT_INJECTION: forcing a failure. [ 55.690280] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 55.694069] Call Trace: [ 55.708444] dump_stack+0x1d3/0x2c6 [ 55.712080] ? dump_stack_print_info.cold.1+0x20/0x20 [ 55.717280] should_fail.cold.4+0xa/0x17 [ 55.721349] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.726465] ? __lock_acquire+0x62f/0x4c20 [ 55.730713] ? mark_held_locks+0x130/0x130 [ 55.734950] ? mark_held_locks+0x130/0x130 [ 55.739218] ? mark_held_locks+0x130/0x130 [ 55.743489] ? print_usage_bug+0xc0/0xc0 [ 55.747550] ? print_usage_bug+0xc0/0xc0 [ 55.751643] ? print_usage_bug+0xc0/0xc0 [ 55.755707] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.761241] ? should_fail+0x22d/0xd01 [ 55.765133] ? __lock_acquire+0x62f/0x4c20 [ 55.769370] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 55.774496] __alloc_pages_nodemask+0x366/0xea0 [ 55.779167] ? __lock_acquire+0x62f/0x4c20 [ 55.783404] ? graph_lock+0x270/0x270 [ 55.787209] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 55.792240] ? find_held_lock+0x36/0x1c0 [ 55.796317] ? ___might_sleep+0x1ed/0x300 [ 55.800484] ? trace_hardirqs_off+0xb8/0x310 [ 55.804917] cache_grow_begin+0x91/0x8c0 [ 55.808992] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.814530] ? check_preemption_disabled+0x48/0x280 [ 55.819552] kmem_cache_alloc_node_trace+0x670/0x740 [ 55.824683] ? is_bpf_text_address+0xd3/0x170 [ 55.829178] ? kernel_text_address+0x79/0xf0 [ 55.833645] __kmalloc_node+0x3c/0x70 [ 55.837450] kvmalloc_node+0x65/0xf0 [ 55.841184] alloc_netdev_mqs+0x17b/0xfe0 [ 55.845329] ? number+0x972/0xca0 [ 55.848800] ? x25_asy_connected+0x270/0x270 [ 55.853205] ? free_netdev+0x450/0x450 [ 55.857103] ? put_dec+0xf0/0xf0 [ 55.860476] ? format_decode+0x1b2/0xaf0 [ 55.864545] ? enable_ptr_key_workfn+0x30/0x30 [ 55.869133] ? graph_lock+0x270/0x270 [ 55.872950] ? trace_hardirqs_off+0xb8/0x310 [ 55.877427] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.882961] ? vsnprintf+0x20d/0x1b60 [ 55.886821] ? pointer+0x900/0x900 [ 55.890372] ? sprintf+0xb0/0xe0 [ 55.893740] ? scnprintf+0x130/0x130 [ 55.897458] ? __kasan_slab_free+0x119/0x150 [ 55.901878] x25_asy_open_tty+0x551/0x7e7 [ 55.906028] ? x25_asy_close_tty+0x220/0x220 [ 55.910469] ? down_write_nested+0x130/0x130 [ 55.914881] ? down_read+0x120/0x120 [ 55.918604] ? x25_asy_close_tty+0x220/0x220 [ 55.923016] tty_ldisc_open.isra.1+0x8b/0xe0 [ 55.927425] tty_set_ldisc+0x2dc/0x6a0 [ 55.931378] tty_ioctl+0x39d/0x17d0 [ 55.935012] ? tty_vhangup+0x30/0x30 [ 55.938762] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 55.944304] ? proc_fail_nth_write+0x9e/0x210 [ 55.948818] ? proc_cwd_link+0x1d0/0x1d0 [ 55.952888] ? trace_hardirqs_off+0xb8/0x310 [ 55.957306] ? find_held_lock+0x36/0x1c0 [ 55.961379] ? vfs_write+0x2f3/0x560 [ 55.965100] ? lock_downgrade+0x900/0x900 [ 55.969267] ? __lock_is_held+0xb5/0x140 [ 55.973366] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.978908] ? __fget_light+0x2e9/0x430 [ 55.982894] ? fget_raw+0x20/0x20 [ 55.986353] ? __sb_end_write+0xd9/0x110 [ 55.990412] ? vfs_write+0x2ad/0x560 [ 55.994135] ? do_fast_syscall_32+0x150/0xfb2 [ 55.998654] tty_compat_ioctl+0x89/0x540 [ 56.002722] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 56.007918] ? tty_ioctl+0x17d0/0x17d0 [ 56.011808] __ia32_compat_sys_ioctl+0x20e/0x630 [ 56.016596] do_fast_syscall_32+0x34d/0xfb2 [ 56.020953] ? do_int80_syscall_32+0x890/0x890 [ 56.025536] ? entry_SYSENTER_compat+0x68/0x7f [ 56.030146] ? trace_hardirqs_off_caller+0xbb/0x310 [ 56.035168] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.040008] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.044869] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.049887] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 56.054922] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.059941] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.064798] entry_SYSENTER_compat+0x70/0x7f [ 56.069203] RIP: 0023:0xf7f28a49 [ 56.072570] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 56.091479] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 56.099187] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 56.106452] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 56.113721] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 56.121008] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 56.128272] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 56.135571] CPU: 0 PID: 7942 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 56.142635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.151995] Call Trace: [ 56.154584] dump_stack+0x1d3/0x2c6 [ 56.158247] ? dump_stack_print_info.cold.1+0x20/0x20 [ 56.163473] should_fail.cold.4+0xa/0x17 [ 56.167543] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.172656] ? __lock_acquire+0x62f/0x4c20 [ 56.176914] ? mark_held_locks+0x130/0x130 [ 56.181171] ? mark_held_locks+0x130/0x130 [ 56.185429] ? mark_held_locks+0x130/0x130 [ 56.189681] ? print_usage_bug+0xc0/0xc0 [ 56.193748] ? print_usage_bug+0xc0/0xc0 [ 56.197811] ? print_usage_bug+0xc0/0xc0 [ 56.201876] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.207431] ? should_fail+0x22d/0xd01 [ 56.211326] ? __lock_acquire+0x62f/0x4c20 [ 56.215568] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.220696] __alloc_pages_nodemask+0x366/0xea0 [ 56.225370] ? __lock_acquire+0x62f/0x4c20 [ 56.229631] ? graph_lock+0x270/0x270 [ 56.233446] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 56.238495] ? find_held_lock+0x36/0x1c0 [ 56.242581] ? ___might_sleep+0x1ed/0x300 [ 56.246756] ? trace_hardirqs_off+0xb8/0x310 [ 56.251181] cache_grow_begin+0x91/0x8c0 [ 56.255248] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.260800] ? check_preemption_disabled+0x48/0x280 [ 56.265832] kmem_cache_alloc_node_trace+0x670/0x740 [ 56.270939] ? is_bpf_text_address+0xd3/0x170 [ 56.275443] ? kernel_text_address+0x79/0xf0 [ 56.279864] __kmalloc_node+0x3c/0x70 [ 56.283684] kvmalloc_node+0x65/0xf0 [ 56.287407] alloc_netdev_mqs+0x17b/0xfe0 [ 56.291559] ? number+0x972/0xca0 [ 56.295048] ? x25_asy_connected+0x270/0x270 [ 56.299458] ? free_netdev+0x450/0x450 [ 56.303354] ? put_dec+0xf0/0xf0 [ 56.306726] ? format_decode+0x1b2/0xaf0 [ 56.310811] ? enable_ptr_key_workfn+0x30/0x30 [ 56.315411] ? graph_lock+0x270/0x270 [ 56.319231] ? trace_hardirqs_off+0xb8/0x310 [ 56.323655] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 56.329198] ? vsnprintf+0x20d/0x1b60 [ 56.333026] ? pointer+0x900/0x900 [ 56.336580] ? sprintf+0xb0/0xe0 [ 56.340016] ? scnprintf+0x130/0x130 [ 56.343745] ? __kasan_slab_free+0x119/0x150 [ 56.348163] x25_asy_open_tty+0x551/0x7e7 [ 56.352315] ? x25_asy_close_tty+0x220/0x220 [ 56.356736] ? down_write_nested+0x130/0x130 [ 56.361153] ? down_read+0x120/0x120 [ 56.364873] ? x25_asy_close_tty+0x220/0x220 [ 56.369285] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.373716] tty_set_ldisc+0x2dc/0x6a0 [ 56.377637] tty_ioctl+0x39d/0x17d0 [ 56.381266] ? tty_vhangup+0x30/0x30 [ 56.385044] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.390592] ? proc_fail_nth_write+0x9e/0x210 [ 56.395094] ? proc_cwd_link+0x1d0/0x1d0 [ 56.399159] ? trace_hardirqs_off+0xb8/0x310 [ 56.403578] ? find_held_lock+0x36/0x1c0 [ 56.407692] ? vfs_write+0x2f3/0x560 [ 56.411413] ? lock_downgrade+0x900/0x900 [ 56.415570] ? __lock_is_held+0xb5/0x140 [ 56.419680] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.425232] ? __fget_light+0x2e9/0x430 [ 56.429214] ? fget_raw+0x20/0x20 [ 56.432672] ? __sb_end_write+0xd9/0x110 [ 56.436745] ? vfs_write+0x2ad/0x560 [ 56.440465] ? do_fast_syscall_32+0x150/0xfb2 [ 56.444977] tty_compat_ioctl+0x89/0x540 [ 56.449048] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 56.454239] ? tty_ioctl+0x17d0/0x17d0 [ 56.458131] __ia32_compat_sys_ioctl+0x20e/0x630 [ 56.462897] do_fast_syscall_32+0x34d/0xfb2 [ 56.467253] ? do_int80_syscall_32+0x890/0x890 [ 56.471893] ? entry_SYSENTER_compat+0x68/0x7f [ 56.476495] ? trace_hardirqs_off_caller+0xbb/0x310 [ 56.481515] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.486359] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.491209] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.496233] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 56.501255] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.506280] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.511134] entry_SYSENTER_compat+0x70/0x7f [ 56.515549] RIP: 0023:0xf7f28a49 [ 56.518980] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 56.537881] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 56.545643] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 56.552973] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 56.560255] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 56.567545] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 56.574815] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 56.582113] CPU: 1 PID: 7937 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 56.589141] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.597491] FAULT_INJECTION: forcing a failure. [ 56.597491] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 56.598543] Call Trace: [ 56.612922] dump_stack+0x1d3/0x2c6 [ 56.616573] ? dump_stack_print_info.cold.1+0x20/0x20 [ 56.621788] ? __kernel_text_address+0xd/0x40 [ 56.626301] ? unwind_get_return_address+0x61/0xa0 [ 56.631233] should_fail.cold.4+0xa/0x17 [ 56.635302] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.640427] ? save_stack+0x43/0xd0 [ 56.644085] ? kasan_kmalloc+0xc7/0xe0 [ 56.647981] ? __kmalloc+0x15b/0x770 [ 56.651701] ? x25_asy_open_tty+0x32a/0x7e7 [ 56.656022] ? tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.660615] ? graph_lock+0x270/0x270 [ 56.664417] ? __ia32_compat_sys_ioctl+0x20e/0x630 [ 56.669348] ? do_fast_syscall_32+0x34d/0xfb2 [ 56.673864] ? entry_SYSENTER_compat+0x70/0x7f [ 56.678450] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 56.683383] ? find_held_lock+0x36/0x1c0 [ 56.687446] ? __lock_is_held+0xb5/0x140 [ 56.691545] ? ___might_sleep+0x1ed/0x300 [ 56.695712] ? arch_local_save_flags+0x40/0x40 [ 56.700317] __should_failslab+0x124/0x180 [ 56.704555] should_failslab+0x9/0x14 [ 56.708363] __kmalloc+0x2e0/0x770 [ 56.711909] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.717444] ? x25_asy_open_tty+0x372/0x7e7 [ 56.721801] x25_asy_open_tty+0x372/0x7e7 [ 56.725949] ? x25_asy_close_tty+0x220/0x220 [ 56.730358] ? up_write+0x7b/0x220 [ 56.733898] ? down_write_nested+0x130/0x130 [ 56.738322] ? down_read+0x120/0x120 [ 56.742038] ? x25_asy_close_tty+0x220/0x220 [ 56.746442] tty_ldisc_open.isra.1+0x8b/0xe0 [ 56.751350] tty_set_ldisc+0x2dc/0x6a0 [ 56.755242] tty_ioctl+0x39d/0x17d0 [ 56.758919] ? tty_vhangup+0x30/0x30 [ 56.762651] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 56.768216] ? proc_fail_nth_write+0x9e/0x210 [ 56.772727] ? proc_cwd_link+0x1d0/0x1d0 [ 56.776793] ? trace_hardirqs_off+0xb8/0x310 [ 56.781221] ? find_held_lock+0x36/0x1c0 [ 56.785287] ? vfs_write+0x2f3/0x560 [ 56.789005] ? lock_downgrade+0x900/0x900 [ 56.793183] ? __lock_is_held+0xb5/0x140 [ 56.797292] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.802848] ? __fget_light+0x2e9/0x430 [ 56.806825] ? fget_raw+0x20/0x20 [ 56.810284] ? __sb_end_write+0xd9/0x110 [ 56.814351] ? vfs_write+0x2ad/0x560 [ 56.818070] ? do_fast_syscall_32+0x150/0xfb2 [ 56.822584] tty_compat_ioctl+0x89/0x540 [ 56.826675] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 56.831899] ? tty_ioctl+0x17d0/0x17d0 [ 56.835790] __ia32_compat_sys_ioctl+0x20e/0x630 [ 56.840583] do_fast_syscall_32+0x34d/0xfb2 [ 56.844926] ? do_int80_syscall_32+0x890/0x890 [ 56.849504] ? entry_SYSENTER_compat+0x68/0x7f [ 56.854084] ? trace_hardirqs_off_caller+0xbb/0x310 [ 56.859117] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.863979] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.868828] ? trace_hardirqs_on_caller+0x310/0x310 [ 56.873852] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 56.878873] ? prepare_exit_to_usermode+0x291/0x3b0 [ 56.883894] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 56.888772] entry_SYSENTER_compat+0x70/0x7f [ 56.893178] RIP: 0023:0xf7f28a49 [ 56.896549] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 56.915481] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 56.923188] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 56.930472] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 56.937739] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 56.945016] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 56.952281] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 56.959575] CPU: 0 PID: 7943 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 56.966627] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.966642] Call Trace: [ 56.978570] dump_stack+0x1d3/0x2c6 [ 56.978600] ? dump_stack_print_info.cold.1+0x20/0x20 [ 56.978636] should_fail.cold.4+0xa/0x17 [ 56.987437] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 56.987454] ? __lock_acquire+0x62f/0x4c20 [ 56.987480] ? mark_held_locks+0x130/0x130 [ 56.987498] ? mark_held_locks+0x130/0x130 [ 57.000882] ? mark_held_locks+0x130/0x130 [ 57.000902] ? print_usage_bug+0xc0/0xc0 [ 57.000919] ? print_usage_bug+0xc0/0xc0 [ 57.000938] ? print_usage_bug+0xc0/0xc0 [ 57.009395] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.009409] ? should_fail+0x22d/0xd01 [ 57.009440] ? __lock_acquire+0x62f/0x4c20 [ 57.009455] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 57.009477] __alloc_pages_nodemask+0x366/0xea0 [ 57.017795] ? __lock_acquire+0x62f/0x4c20 [ 57.017841] ? graph_lock+0x270/0x270 [ 57.017875] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 57.017899] ? find_held_lock+0x36/0x1c0 [ 57.026049] ? ___might_sleep+0x1ed/0x300 [ 57.026068] ? trace_hardirqs_off+0xb8/0x310 [ 57.026088] cache_grow_begin+0x91/0x8c0 [ 57.026104] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.026129] ? check_preemption_disabled+0x48/0x280 [ 57.031986] ================================================================== [ 57.035545] kmem_cache_alloc_node_trace+0x670/0x740 [ 57.035561] ? is_bpf_text_address+0xd3/0x170 [ 57.039886] BUG: KASAN: double-free or invalid-free in x25_asy_free+0x37/0x140 [ 57.044978] ? kernel_text_address+0x79/0xf0 [ 57.049612] [ 57.120098] __kmalloc_node+0x3c/0x70 [ 57.123916] kvmalloc_node+0x65/0xf0 [ 57.127640] alloc_netdev_mqs+0x17b/0xfe0 [ 57.131818] ? number+0x972/0xca0 [ 57.135273] ? x25_asy_connected+0x270/0x270 [ 57.139696] ? free_netdev+0x450/0x450 [ 57.143619] ? put_dec+0xf0/0xf0 [ 57.147002] ? format_decode+0x1b2/0xaf0 [ 57.151073] ? enable_ptr_key_workfn+0x30/0x30 [ 57.155654] ? graph_lock+0x270/0x270 [ 57.159451] ? trace_hardirqs_off+0xb8/0x310 [ 57.163867] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 57.169438] ? vsnprintf+0x20d/0x1b60 [ 57.173264] ? pointer+0x900/0x900 [ 57.176820] ? sprintf+0xb0/0xe0 [ 57.180189] ? scnprintf+0x130/0x130 [ 57.183925] ? __kasan_slab_free+0x119/0x150 [ 57.188341] x25_asy_open_tty+0x551/0x7e7 [ 57.192511] ? x25_asy_close_tty+0x220/0x220 [ 57.196921] ? down_write_nested+0x130/0x130 [ 57.201327] ? down_read+0x120/0x120 [ 57.205039] ? x25_asy_close_tty+0x220/0x220 [ 57.209476] tty_ldisc_open.isra.1+0x8b/0xe0 [ 57.213906] tty_set_ldisc+0x2dc/0x6a0 [ 57.217817] tty_ioctl+0x39d/0x17d0 [ 57.221451] ? tty_vhangup+0x30/0x30 [ 57.225167] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 57.230710] ? proc_fail_nth_write+0x9e/0x210 [ 57.235211] ? proc_cwd_link+0x1d0/0x1d0 [ 57.239277] ? trace_hardirqs_off+0xb8/0x310 [ 57.243692] ? find_held_lock+0x36/0x1c0 [ 57.247765] ? vfs_write+0x2f3/0x560 [ 57.251502] ? lock_downgrade+0x900/0x900 [ 57.255660] ? __lock_is_held+0xb5/0x140 [ 57.259729] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.265267] ? __fget_light+0x2e9/0x430 [ 57.269241] ? fget_raw+0x20/0x20 [ 57.272696] ? __sb_end_write+0xd9/0x110 [ 57.276762] ? vfs_write+0x2ad/0x560 [ 57.280537] ? do_fast_syscall_32+0x150/0xfb2 [ 57.285043] tty_compat_ioctl+0x89/0x540 [ 57.289105] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 57.294297] ? tty_ioctl+0x17d0/0x17d0 [ 57.298184] __ia32_compat_sys_ioctl+0x20e/0x630 [ 57.302952] do_fast_syscall_32+0x34d/0xfb2 [ 57.307279] ? do_int80_syscall_32+0x890/0x890 [ 57.311862] ? entry_SYSENTER_compat+0x68/0x7f [ 57.316447] ? trace_hardirqs_off_caller+0xbb/0x310 [ 57.321486] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.326330] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.331176] ? trace_hardirqs_on_caller+0x310/0x310 [ 57.336194] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 57.341214] ? prepare_exit_to_usermode+0x291/0x3b0 [ 57.346238] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.351090] entry_SYSENTER_compat+0x70/0x7f [ 57.355510] RIP: 0023:0xf7f28a49 [ 57.358877] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 57.377799] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 57.385520] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 57.392797] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 57.400096] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 57.407366] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 57.414639] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.421959] CPU: 1 PID: 7937 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 57.428975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.438330] Call Trace: [ 57.440925] dump_stack+0x1d3/0x2c6 [ 57.444571] ? dump_stack_print_info.cold.1+0x20/0x20 [ 57.449794] ? printk+0xa7/0xcf [ 57.453087] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 57.457862] ? debug_check_no_obj_freed+0x305/0x58d [ 57.462903] print_address_description.cold.8+0x9/0x1ff [ 57.468297] ? x25_asy_free+0x37/0x140 [ 57.472215] kasan_report_invalid_free+0x64/0xa0 [ 57.476984] ? x25_asy_free+0x37/0x140 [ 57.480880] __kasan_slab_free+0x13a/0x150 [ 57.485132] ? x25_asy_free+0x37/0x140 [ 57.489031] kasan_slab_free+0xe/0x10 [ 57.492838] kfree+0xcf/0x230 [ 57.495958] x25_asy_free+0x37/0x140 [ 57.499688] x25_asy_open_tty+0x6ad/0x7e7 [ 57.503845] ? x25_asy_close_tty+0x220/0x220 [ 57.508257] ? up_write+0x7b/0x220 [ 57.511810] ? down_write_nested+0x130/0x130 [ 57.516229] ? down_read+0x120/0x120 [ 57.519955] ? x25_asy_close_tty+0x220/0x220 [ 57.524373] tty_ldisc_open.isra.1+0x8b/0xe0 [ 57.528794] tty_set_ldisc+0x2dc/0x6a0 [ 57.532703] tty_ioctl+0x39d/0x17d0 [ 57.536354] ? tty_vhangup+0x30/0x30 [ 57.540091] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 57.545639] ? proc_fail_nth_write+0x9e/0x210 [ 57.550155] ? proc_cwd_link+0x1d0/0x1d0 [ 57.554227] ? trace_hardirqs_off+0xb8/0x310 [ 57.558665] ? find_held_lock+0x36/0x1c0 [ 57.562770] ? vfs_write+0x2f3/0x560 [ 57.566512] ? lock_downgrade+0x900/0x900 [ 57.570688] ? __lock_is_held+0xb5/0x140 [ 57.574770] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.580318] ? __fget_light+0x2e9/0x430 [ 57.584315] ? fget_raw+0x20/0x20 [ 57.587782] ? __sb_end_write+0xd9/0x110 [ 57.591882] ? vfs_write+0x2ad/0x560 [ 57.595628] ? do_fast_syscall_32+0x150/0xfb2 [ 57.600146] tty_compat_ioctl+0x89/0x540 [ 57.604220] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 57.609415] ? tty_ioctl+0x17d0/0x17d0 [ 57.613315] __ia32_compat_sys_ioctl+0x20e/0x630 [ 57.618094] do_fast_syscall_32+0x34d/0xfb2 [ 57.622466] ? do_int80_syscall_32+0x890/0x890 [ 57.627062] ? entry_SYSENTER_compat+0x68/0x7f [ 57.631681] ? trace_hardirqs_off_caller+0xbb/0x310 [ 57.636727] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.641578] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.641607] ? trace_hardirqs_on_caller+0x310/0x310 [ 57.641625] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 57.641643] ? prepare_exit_to_usermode+0x291/0x3b0 [ 57.641663] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.651642] entry_SYSENTER_compat+0x70/0x7f [ 57.651654] RIP: 0023:0xf7f28a49 [ 57.651669] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 57.651677] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 57.651695] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 57.661714] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 57.661723] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 57.661730] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 57.661738] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.661759] [ 57.661766] Allocated by task 7937: [ 57.661781] save_stack+0x43/0xd0 [ 57.671021] kasan_kmalloc+0xc7/0xe0 [ 57.671033] __kmalloc+0x15b/0x770 [ 57.671044] x25_asy_open_tty+0x32a/0x7e7 [ 57.671055] tty_ldisc_open.isra.1+0x8b/0xe0 [ 57.671065] tty_set_ldisc+0x2dc/0x6a0 [ 57.671081] tty_ioctl+0x39d/0x17d0 [ 57.693340] tty_compat_ioctl+0x89/0x540 [ 57.693355] __ia32_compat_sys_ioctl+0x20e/0x630 [ 57.693369] do_fast_syscall_32+0x34d/0xfb2 [ 57.693382] entry_SYSENTER_compat+0x70/0x7f [ 57.693386] [ 57.693393] Freed by task 7937: [ 57.693404] save_stack+0x43/0xd0 [ 57.693415] __kasan_slab_free+0x102/0x150 [ 57.693427] kasan_slab_free+0xe/0x10 [ 57.693441] kfree+0xcf/0x230 [ 57.702473] x25_asy: x25_asy_alloc(): register_netdev() failure [ 57.708410] x25_asy_open_tty+0x6a0/0x7e7 [ 57.708427] tty_ldisc_open.isra.1+0x8b/0xe0 [ 57.715919] x25_asy: x25_asy_alloc(): register_netdev() failure [ 57.722984] tty_set_ldisc+0x2dc/0x6a0 [ 57.722996] tty_ioctl+0x39d/0x17d0 [ 57.723009] tty_compat_ioctl+0x89/0x540 [ 57.723022] __ia32_compat_sys_ioctl+0x20e/0x630 [ 57.723034] do_fast_syscall_32+0x34d/0xfb2 [ 57.723050] entry_SYSENTER_compat+0x70/0x7f [ 57.730394] x25_asy: x25_asy_alloc(): register_netdev() failure [ 57.737598] [ 57.737609] The buggy address belongs to the object at ffff8881ba69edc0 [ 57.737609] which belongs to the cache kmalloc-1k of size 1024 [ 57.737621] The buggy address is located 0 bytes inside of [ 57.737621] 1024-byte region [ffff8881ba69edc0, ffff8881ba69f1c0) [ 57.737626] The buggy address belongs to the page: [ 57.737638] page:ffffea0006e9a780 count:1 mapcount:0 mapping:ffff8881da800ac0 index:0x0 compound_mapcount: 0 [ 57.737653] flags: 0x2fffc0000010200(slab|head) [ 57.737670] raw: 02fffc0000010200 ffffea0006e92688 ffffea0006e92f88 ffff8881da800ac0 [ 57.739296] x25_asy: x25_asy_alloc(): register_netdev() failure [ 57.742914] raw: 0000000000000000 ffff8881ba69e040 0000000100000007 0000000000000000 [ 57.742920] page dumped because: kasan: bad access detected [ 57.742923] [ 57.742928] Memory state around the buggy address: [ 57.742941] ffff8881ba69ec80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.764123] FAULT_INJECTION: forcing a failure. [ 57.764123] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 57.766045] ffff8881ba69ed00: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 57.769668] CPU: 0 PID: 7951 Comm: syz-executor002 Not tainted 4.20.0 #290 [ 57.773705] >ffff8881ba69ed80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 57.778452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.782756] ^ [ 57.787163] Call Trace: [ 57.788775] ffff8881ba69ee00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.792047] dump_stack+0x1d3/0x2c6 [ 57.795492] ffff8881ba69ee80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.799721] ? dump_stack_print_info.cold.1+0x20/0x20 [ 57.803498] ================================================================== [ 57.806615] should_fail.cold.4+0xa/0x17 [ 57.812722] Disabling lock debugging due to kernel taint [ 57.816866] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 57.821250] Kernel panic - not syncing: panic_on_warn set ... [ 57.827295] ? arch_local_save_flags+0x40/0x40 [ 58.052164] ? mark_held_locks+0x130/0x130 [ 58.056401] ? __mutex_lock+0x85e/0x1700 [ 58.060480] ? tty_buffer_flush+0xe1/0x3f0 [ 58.064720] ? find_held_lock+0x36/0x1c0 [ 58.068786] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.074325] ? should_fail+0x22d/0xd01 [ 58.078216] ? __kernel_text_address+0xd/0x40 [ 58.082709] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 58.087807] ? __save_stack_trace+0x8d/0xf0 [ 58.092130] __alloc_pages_nodemask+0x366/0xea0 [ 58.096820] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 58.101879] ? __mutex_unlock_slowpath+0x197/0x8c0 [ 58.106849] ? find_held_lock+0x36/0x1c0 [ 58.110923] ? ___might_sleep+0x1ed/0x300 [ 58.115072] ? trace_hardirqs_off+0xb8/0x310 [ 58.119483] cache_grow_begin+0x91/0x8c0 [ 58.123542] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 58.129081] ? check_preemption_disabled+0x48/0x280 [ 58.134101] __kmalloc+0x6aa/0x770 [ 58.137669] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.143234] ? x25_asy_open_tty+0x32a/0x7e7 [ 58.147559] x25_asy_open_tty+0x32a/0x7e7 [ 58.151726] ? x25_asy_close_tty+0x220/0x220 [ 58.156130] ? up_write+0x7b/0x220 [ 58.159704] ? down_write_nested+0x130/0x130 [ 58.164111] ? down_read+0x120/0x120 [ 58.167838] ? x25_asy_close_tty+0x220/0x220 [ 58.172244] tty_ldisc_open.isra.1+0x8b/0xe0 [ 58.176653] tty_set_ldisc+0x2dc/0x6a0 [ 58.180544] tty_ioctl+0x39d/0x17d0 [ 58.184183] ? tty_vhangup+0x30/0x30 [ 58.187900] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 58.193440] ? proc_fail_nth_write+0x9e/0x210 [ 58.197952] ? proc_cwd_link+0x1d0/0x1d0 [ 58.202013] ? trace_hardirqs_off+0xb8/0x310 [ 58.206429] ? find_held_lock+0x36/0x1c0 [ 58.210493] ? vfs_write+0x2f3/0x560 [ 58.214208] ? lock_downgrade+0x900/0x900 [ 58.218370] ? __lock_is_held+0xb5/0x140 [ 58.222446] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.227984] ? __fget_light+0x2e9/0x430 [ 58.231962] ? fget_raw+0x20/0x20 [ 58.235420] ? __sb_end_write+0xd9/0x110 [ 58.239481] ? vfs_write+0x2ad/0x560 [ 58.243196] ? do_fast_syscall_32+0x150/0xfb2 [ 58.247699] tty_compat_ioctl+0x89/0x540 [ 58.251761] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 58.256948] ? tty_ioctl+0x17d0/0x17d0 [ 58.260834] __ia32_compat_sys_ioctl+0x20e/0x630 [ 58.265618] do_fast_syscall_32+0x34d/0xfb2 [ 58.269940] ? do_int80_syscall_32+0x890/0x890 [ 58.274517] ? entry_SYSENTER_compat+0x68/0x7f [ 58.279101] ? trace_hardirqs_off_caller+0xbb/0x310 [ 58.284116] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.288958] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.293826] ? trace_hardirqs_on_caller+0x310/0x310 [ 58.298856] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 58.303921] ? prepare_exit_to_usermode+0x291/0x3b0 [ 58.308969] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.313809] entry_SYSENTER_compat+0x70/0x7f [ 58.318210] RIP: 0023:0xf7f28a49 [ 58.321599] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 58.340506] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 58.348249] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 58.355518] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 58.362782] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 58.370045] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 58.377322] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.384624] CPU: 1 PID: 7937 Comm: syz-executor002 Tainted: G B 4.20.0 #290 [ 58.392087] FAULT_INJECTION: forcing a failure. [ 58.392087] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 58.393052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.414227] Call Trace: [ 58.416842] dump_stack+0x1d3/0x2c6 [ 58.420517] ? dump_stack_print_info.cold.1+0x20/0x20 [ 58.425712] ? x25_asy_data_transmit+0x620/0x6e0 [ 58.430471] panic+0x2ad/0x55c [ 58.433667] ? add_taint.cold.5+0x16/0x16 [ 58.437835] ? add_taint.cold.5+0x5/0x16 [ 58.441897] ? trace_hardirqs_off+0xaf/0x310 [ 58.446308] ? x25_asy_free+0x37/0x140 [ 58.450198] kasan_end_report+0x47/0x4f [ 58.454170] kasan_report_invalid_free+0x81/0xa0 [ 58.458929] ? x25_asy_free+0x37/0x140 [ 58.462818] __kasan_slab_free+0x13a/0x150 [ 58.467054] ? x25_asy_free+0x37/0x140 [ 58.470941] kasan_slab_free+0xe/0x10 [ 58.474744] kfree+0xcf/0x230 [ 58.477853] x25_asy_free+0x37/0x140 [ 58.481564] x25_asy_open_tty+0x6ad/0x7e7 [ 58.485723] ? x25_asy_close_tty+0x220/0x220 [ 58.490136] ? up_write+0x7b/0x220 [ 58.493676] ? down_write_nested+0x130/0x130 [ 58.498085] ? down_read+0x120/0x120 [ 58.501811] ? x25_asy_close_tty+0x220/0x220 [ 58.506219] tty_ldisc_open.isra.1+0x8b/0xe0 [ 58.510670] tty_set_ldisc+0x2dc/0x6a0 [ 58.514572] tty_ioctl+0x39d/0x17d0 [ 58.518210] ? tty_vhangup+0x30/0x30 [ 58.521923] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 58.527457] ? proc_fail_nth_write+0x9e/0x210 [ 58.531963] ? proc_cwd_link+0x1d0/0x1d0 [ 58.536026] ? trace_hardirqs_off+0xb8/0x310 [ 58.540447] ? find_held_lock+0x36/0x1c0 [ 58.544510] ? vfs_write+0x2f3/0x560 [ 58.548238] ? lock_downgrade+0x900/0x900 [ 58.552399] ? __lock_is_held+0xb5/0x140 [ 58.556479] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.562020] ? __fget_light+0x2e9/0x430 [ 58.566008] ? fget_raw+0x20/0x20 [ 58.569459] ? __sb_end_write+0xd9/0x110 [ 58.573534] ? vfs_write+0x2ad/0x560 [ 58.577273] ? do_fast_syscall_32+0x150/0xfb2 [ 58.581777] tty_compat_ioctl+0x89/0x540 [ 58.585839] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 58.591027] ? tty_ioctl+0x17d0/0x17d0 [ 58.594923] __ia32_compat_sys_ioctl+0x20e/0x630 [ 58.599723] do_fast_syscall_32+0x34d/0xfb2 [ 58.604051] ? do_int80_syscall_32+0x890/0x890 [ 58.608656] ? entry_SYSENTER_compat+0x68/0x7f [ 58.613239] ? trace_hardirqs_off_caller+0xbb/0x310 [ 58.618254] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.623100] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.627952] ? trace_hardirqs_on_caller+0x310/0x310 [ 58.632966] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 58.637980] ? prepare_exit_to_usermode+0x291/0x3b0 [ 58.642995] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 58.647848] entry_SYSENTER_compat+0x70/0x7f [ 58.652251] RIP: 0023:0xf7f28a49 [ 58.655626] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 58.674536] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 58.682241] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 58.689639] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 58.696902] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 58.704167] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 58.711436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 58.718721] CPU: 0 PID: 7952 Comm: syz-executor002 Tainted: G B 4.20.0 #290 [ 58.727119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.736476] Call Trace: [ 58.739065] dump_stack+0x1d3/0x2c6 [ 58.742694] ? dump_stack_print_info.cold.1+0x20/0x20 [ 58.747877] ? unlock_page_memcg+0x2c/0x40 [ 58.752249] should_fail.cold.4+0xa/0x17 [ 58.756307] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 58.761404] ? ima_match_policy+0x848/0x1560 [ 58.765907] ? lock_downgrade+0x900/0x900 [ 58.770054] ? mark_held_locks+0x130/0x130 [ 58.774286] ? mark_held_locks+0x130/0x130 [ 58.778515] ? mark_held_locks+0x130/0x130 [ 58.782747] ? mark_held_locks+0x130/0x130 [ 58.786997] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 58.792526] ? should_fail+0x22d/0xd01 [ 58.796412] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 58.801441] ? pfn_pte+0x1c3/0x230 [ 58.804995] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 58.810092] ? pte_offset_kernel+0xf0/0xf0 [ 58.814323] __alloc_pages_nodemask+0x366/0xea0 [ 58.819006] ? __alloc_pages_slowpath+0x2df0/0x2df0 [ 58.824017] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 58.829030] ? fs_reclaim_acquire+0x20/0x20 [ 58.833347] ? lock_downgrade+0x900/0x900 [ 58.837483] ? is_bpf_text_address+0xac/0x170 [ 58.841994] ? ___might_sleep+0x1ed/0x300 [ 58.846159] ? trace_hardirqs_off+0xb8/0x310 [ 58.850566] cache_grow_begin+0x91/0x8c0 [ 58.854642] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 58.860173] ? check_preemption_disabled+0x48/0x280 [ 58.865188] kmem_cache_alloc_node_trace+0x670/0x740 [ 58.870289] ? is_bpf_text_address+0xd3/0x170 [ 58.874790] ? kernel_text_address+0x79/0xf0 [ 58.879198] __kmalloc_node+0x3c/0x70 [ 58.882994] kvmalloc_node+0x65/0xf0 [ 58.886704] alloc_netdev_mqs+0x17b/0xfe0 [ 58.890865] ? number+0x972/0xca0 [ 58.894315] ? x25_asy_connected+0x270/0x270 [ 58.898715] ? free_netdev+0x450/0x450 [ 58.902605] ? put_dec+0xf0/0xf0 [ 58.905996] ? format_decode+0x1b2/0xaf0 [ 58.910062] ? enable_ptr_key_workfn+0x30/0x30 [ 58.914646] ? entry_SYSENTER_compat+0x70/0x7f [ 58.919230] ? trace_hardirqs_off+0xb8/0x310 [ 58.923665] ? kasan_check_read+0x11/0x20 [ 58.927815] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 58.933356] ? vsnprintf+0x20d/0x1b60 [ 58.937158] ? pointer+0x900/0x900 [ 58.940699] ? sprintf+0xb0/0xe0 [ 58.944058] ? scnprintf+0x130/0x130 [ 58.947795] ? __kasan_slab_free+0x119/0x150 [ 58.952229] x25_asy_open_tty+0x551/0x7e7 [ 58.956394] ? x25_asy_close_tty+0x220/0x220 [ 58.960821] ? down_write_nested+0x130/0x130 [ 58.965227] ? down_read+0x120/0x120 [ 58.968945] ? x25_asy_close_tty+0x220/0x220 [ 58.973365] tty_ldisc_open.isra.1+0x8b/0xe0 [ 58.977775] tty_set_ldisc+0x2dc/0x6a0 [ 58.981675] tty_ioctl+0x39d/0x17d0 [ 58.985302] ? tty_vhangup+0x30/0x30 [ 58.989013] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 58.994571] ? proc_fail_nth_write+0x9e/0x210 [ 58.999075] ? proc_cwd_link+0x1d0/0x1d0 [ 59.003135] ? trace_hardirqs_off+0xb8/0x310 [ 59.007554] ? kasan_check_read+0x11/0x20 [ 59.011696] ? do_raw_spin_unlock+0xa7/0x330 [ 59.016121] ? __vfs_write+0x121/0x9f0 [ 59.020008] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.025548] ? vfs_write+0x2f3/0x560 [ 59.029263] ? lock_downgrade+0x900/0x900 [ 59.033408] ? lock_release+0xa00/0xa00 [ 59.037377] ? arch_local_save_flags+0x40/0x40 [ 59.041955] ? __do_page_fault+0x620/0xe60 [ 59.046198] ? fsnotify_first_mark+0x350/0x350 [ 59.050783] ? __fsnotify_parent+0xcc/0x430 [ 59.055118] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.060654] ? __fget_light+0x2e9/0x430 [ 59.064644] ? fget_raw+0x20/0x20 [ 59.068093] ? __sb_end_write+0xd9/0x110 [ 59.072207] ? vfs_write+0x2ad/0x560 [ 59.075939] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 59.081490] tty_compat_ioctl+0x89/0x540 [ 59.085547] ? __sanitizer_cov_trace_switch+0x53/0x90 [ 59.090732] ? tty_ioctl+0x17d0/0x17d0 [ 59.094629] __ia32_compat_sys_ioctl+0x20e/0x630 [ 59.099403] do_fast_syscall_32+0x34d/0xfb2 [ 59.103748] ? do_int80_syscall_32+0x890/0x890 [ 59.108357] ? entry_SYSENTER_compat+0x68/0x7f [ 59.112955] ? trace_hardirqs_off_caller+0xbb/0x310 [ 59.117999] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.122859] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.127703] ? trace_hardirqs_on_caller+0x310/0x310 [ 59.132720] ? prepare_exit_to_usermode+0x291/0x3b0 [ 59.137754] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 59.142620] entry_SYSENTER_compat+0x70/0x7f [ 59.147019] RIP: 0023:0xf7f28a49 [ 59.150379] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 59.169272] RSP: 002b:00000000ffe3b24c EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 59.176977] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000005423 [ 59.184248] RDX: 0000000020000080 RSI: 00000000080d6d40 RDI: 00000000080ecf84 [ 59.191523] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 59.198790] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 59.206051] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 59.214270] Kernel Offset: disabled [ 59.217896] Rebooting in 86400 seconds..