[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.35' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 66.968442][ T6902] ------------[ cut here ]------------ [ 66.976991][ T6907] ------------[ cut here ]------------ [ 66.983357][ T6902] WARNING: CPU: 0 PID: 6902 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 66.996165][ T6902] Modules linked in: [ 67.001065][ T6902] CPU: 0 PID: 6902 Comm: syz-executor395 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 executing program [ 67.018261][ T6902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.019545][ T6907] WARNING: CPU: 1 PID: 6907 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.028992][ T6902] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.040492][ T6907] Modules linked in: executing program [ 67.061125][ T6907] CPU: 0 PID: 6907 Comm: syz-executor395 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 [ 67.075141][ T6902] Code: ff e8 62 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 50 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 3e 0a 5b fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 7c 85 9b fb e9 7b fa ff [ 67.098105][ T6907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.109484][ T6907] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.116467][ T6902] RSP: 0018:ffffc900054d7910 EFLAGS: 00010293 [ 67.123025][ T6907] Code: ff e8 62 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 50 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 3e 0a 5b fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 7c 85 9b fb e9 7b fa ff [ 67.145000][ T6902] RAX: 0000000000000000 RBX: ffffc900054d79f8 RCX: ffffffff86196de9 [ 67.155393][ T6902] RDX: ffff88809dd942c0 RSI: ffffffff86197252 RDI: 0000000000000005 [ 67.163778][ T6902] RBP: 1ffff92000a9af24 R08: 0000000000000000 R09: ffffffff8abc718f [ 67.172147][ T6907] RSP: 0018:ffffc900055d79b0 EFLAGS: 00010293 [ 67.178312][ T6907] RAX: 0000000000000000 RBX: ffffc900055d7a98 RCX: ffffffff86196de9 [ 67.186763][ T6902] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900054d7a18 [ 67.197205][ T6907] RDX: ffff888092a52400 RSI: ffffffff86197252 RDI: 0000000000000005 [ 67.201344][ T6902] R13: ffffc900054d7a38 R14: 0000000000000000 R15: ffffc900054d7a18 [ 67.214814][ T6902] FS: 0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 67.223837][ T6907] RBP: 1ffff92000abaf38 R08: 0000000000000000 R09: ffffffff8abc718f [ 67.223849][ T6907] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900055d7ab8 [ 67.234068][ T6902] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.247557][ T6902] CR2: 00007f05771d6000 CR3: 000000009e7bc000 CR4: 00000000001506e0 [ 67.256714][ T6907] R13: ffffc900055d7ad8 R14: 0000000000000000 R15: ffffc900055d7ad8 executing program executing program executing program executing program [ 67.260771][ T6902] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.281382][ T6907] FS: 0000000000970880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 67.286312][ T6902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.314233][ T6902] Call Trace: executing program executing program executing program [ 67.318091][ T6907] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.321084][ T6902] ? mulaw_transfer+0x290/0x290 [ 67.334603][ T6902] ? mulaw_encode+0x780/0x780 [ 67.340245][ T6902] ? cpu_latency_qos_add_request+0x103/0x3d0 [ 67.345662][ T6907] CR2: 0000000020000080 CR3: 00000000845f7000 CR4: 00000000001506f0 [ 67.352648][ T6902] snd_pcm_plug_format_plugins+0xb76/0x1360 [ 67.362653][ T6902] ? snd_pcm_hw_param_near.constprop.0+0x62e/0x810 executing program [ 67.378604][ T6902] ? snd_pcm_plug_slave_format+0x5a0/0x5a0 [ 67.381896][ T6907] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.385468][ T6902] ? snd_pcm_oss_disconnect_minor+0x340/0x340 [ 67.416847][ T6902] snd_pcm_oss_change_params_locked+0x3015/0x3430 executing program executing program executing program [ 67.418171][ T6907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.441423][ T6902] ? snd_pcm_plugin_append+0x190/0x190 [ 67.445948][ T6907] Call Trace: [ 67.458695][ T6902] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.465189][ T6907] ? mulaw_decode+0x750/0x750 [ 67.479325][ T6902] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 67.480154][ T6907] ? mulaw_encode+0x780/0x780 [ 67.495430][ T6907] ? cpu_latency_qos_add_request+0x103/0x3d0 [ 67.502100][ T6907] snd_pcm_plug_format_plugins+0xb76/0x1360 [ 67.503465][ T6902] ? __fsnotify_parent+0x48c/0x930 [ 67.508071][ T6907] ? snd_pcm_plug_slave_format+0x5a0/0x5a0 [ 67.519367][ T6907] ? snd_pcm_oss_disconnect_minor+0x340/0x340 executing program [ 67.525847][ T6907] snd_pcm_oss_change_params_locked+0x3015/0x3430 [ 67.532553][ T6907] ? snd_pcm_plugin_append+0x190/0x190 [ 67.538044][ T6907] ? mutex_lock_io_nested+0xf60/0xf60 [ 67.543758][ T6902] snd_pcm_oss_make_ready+0xe6/0x2e0 [ 67.549055][ T6902] snd_pcm_oss_sync+0x2e0/0x800 [ 67.554481][ T6907] ? tomoyo_path_number_perm+0x244/0x4d0 [ 67.571315][ T6907] ? lock_acquire+0x1f1/0xad0 executing program executing program executing program executing program [ 67.576236][ T6907] ? __might_fault+0xef/0x1d0 [ 67.580943][ T6907] snd_pcm_oss_get_active_substream+0x164/0x1c0 [ 67.591278][ T6902] ? lock_is_held_type+0xbb/0xf0 [ 67.596265][ T6902] snd_pcm_oss_release+0x276/0x300 executing program [ 67.631297][ T6902] __fput+0x285/0x920 [ 67.635330][ T6902] ? snd_pcm_oss_sync+0x800/0x800 [ 67.640373][ T6902] task_work_run+0xdd/0x190 [ 67.646053][ T6907] snd_pcm_oss_get_formats+0x75/0x340 [ 67.657253][ T6907] ? snd_pcm_oss_get_active_substream+0x1c0/0x1c0 [ 67.665752][ T6902] do_exit+0xb7d/0x29f0 [ 67.669949][ T6902] ? mm_update_next_owner+0x7a0/0x7a0 executing program executing program executing program [ 67.681294][ T6907] snd_pcm_oss_ioctl+0xfd3/0x3370 [ 67.686360][ T6907] ? _down_write_nest_lock+0x150/0x150 [ 67.694698][ T6902] ? lock_is_held_type+0xbb/0xf0 [ 67.699672][ T6902] do_group_exit+0x125/0x310 [ 67.715017][ T6907] ? snd_pcm_oss_release+0x300/0x300 [ 67.720523][ T6907] ? vmacache_update+0xce/0x140 executing program [ 67.735334][ T6902] __x64_sys_exit_group+0x3a/0x50 [ 67.740492][ T6902] do_syscall_64+0x2d/0x70 [ 67.761969][ T6907] ? bpf_lsm_file_ioctl+0x5/0x10 [ 67.766962][ T6907] ? snd_pcm_oss_release+0x300/0x300 [ 67.773319][ T6902] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.779426][ T6902] RIP: 0033:0x440038 [ 67.785196][ T6907] __x64_sys_ioctl+0x193/0x200 [ 67.790023][ T6907] do_syscall_64+0x2d/0x70 [ 67.795434][ T6902] Code: Bad RIP value. [ 67.799599][ T6902] RSP: 002b:00007ffdcad36038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 67.809189][ T6907] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.821080][ T6907] RIP: 0033:0x4413c9 [ 67.825772][ T6902] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440038 executing program [ 67.834309][ T6907] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 6b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.854641][ T6902] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 67.863234][ T6902] RBP: 00000000004bf870 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 67.872212][ T6907] RSP: 002b:00007ffdcad36088 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program executing program executing program [ 67.887693][ T6902] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 67.903798][ T6907] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413c9 [ 67.916183][ T6902] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 executing program [ 67.937130][ T6907] RDX: 0000000020000000 RSI: 00000000c0045005 RDI: 0000000000000003 [ 67.942191][ T6902] Kernel panic - not syncing: panic_on_warn set ... [ 67.951724][ T6902] CPU: 0 PID: 6902 Comm: syz-executor395 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 [ 67.952311][ T6907] RBP: 000000000001052f R08: 00000000004002c8 R09: 00000000004002c8 [ 67.961612][ T6902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.961618][ T6902] Call Trace: [ 67.961639][ T6902] dump_stack+0x18f/0x20d executing program [ 67.961659][ T6902] panic+0x2e3/0x75c [ 67.961675][ T6902] ? __warn_printk+0xf3/0xf3 [ 67.961698][ T6902] ? __warn.cold+0x1d/0xc1 [ 67.970452][ T6907] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004020c0 [ 67.979700][ T6902] ? __warn.cold+0x14/0xc1 [ 67.979720][ T6902] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.979736][ T6902] __warn.cold+0x38/0xc1 [ 67.979754][ T6902] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.979768][ T6902] report_bug+0x1bd/0x210 [ 67.979790][ T6902] handle_bug+0x38/0x90 executing program [ 67.993281][ T6907] R13: 0000000000402150 R14: 0000000000000000 R15: 0000000000000000 [ 67.995899][ T6902] exc_invalid_op+0x14/0x40 [ 67.995915][ T6902] asm_exc_invalid_op+0x12/0x20 [ 67.995933][ T6902] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 67.995953][ T6902] Code: ff e8 62 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 50 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 3e 0a 5b fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 7c 85 9b fb e9 7b fa ff [ 68.081644][ T6902] RSP: 0018:ffffc900054d7910 EFLAGS: 00010293 [ 68.087723][ T6902] RAX: 0000000000000000 RBX: ffffc900054d79f8 RCX: ffffffff86196de9 [ 68.095785][ T6902] RDX: ffff88809dd942c0 RSI: ffffffff86197252 RDI: 0000000000000005 [ 68.103789][ T6902] RBP: 1ffff92000a9af24 R08: 0000000000000000 R09: ffffffff8abc718f [ 68.111763][ T6902] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900054d7a18 [ 68.119740][ T6902] R13: ffffc900054d7a38 R14: 0000000000000000 R15: ffffc900054d7a18 [ 68.127731][ T6902] ? snd_pcm_plugin_build_mulaw+0x249/0x7e0 executing program [ 68.133636][ T6902] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 68.139557][ T6902] ? mulaw_transfer+0x290/0x290 [ 68.144413][ T6902] ? mulaw_encode+0x780/0x780 [ 68.149108][ T6902] ? cpu_latency_qos_add_request+0x103/0x3d0 [ 68.155106][ T6902] snd_pcm_plug_format_plugins+0xb76/0x1360 [ 68.161015][ T6902] ? snd_pcm_hw_param_near.constprop.0+0x62e/0x810 [ 68.167543][ T6902] ? snd_pcm_plug_slave_format+0x5a0/0x5a0 [ 68.173364][ T6902] ? snd_pcm_oss_disconnect_minor+0x340/0x340 [ 68.179442][ T6902] snd_pcm_oss_change_params_locked+0x3015/0x3430 executing program [ 68.185919][ T6902] ? snd_pcm_plugin_append+0x190/0x190 [ 68.191376][ T6902] ? mutex_lock_io_nested+0xf60/0xf60 [ 68.196761][ T6902] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 68.202763][ T6902] ? __fsnotify_parent+0x48c/0x930 [ 68.208052][ T6902] snd_pcm_oss_make_ready+0xe6/0x2e0 [ 68.213348][ T6902] snd_pcm_oss_sync+0x2e0/0x800 [ 68.218200][ T6902] ? lock_is_held_type+0xbb/0xf0 [ 68.223144][ T6902] snd_pcm_oss_release+0x276/0x300 [ 68.228264][ T6902] __fput+0x285/0x920 [ 68.232252][ T6902] ? snd_pcm_oss_sync+0x800/0x800 executing program [ 68.237278][ T6902] task_work_run+0xdd/0x190 [ 68.241782][ T6902] do_exit+0xb7d/0x29f0 [ 68.245946][ T6902] ? mm_update_next_owner+0x7a0/0x7a0 [ 68.251330][ T6902] ? lock_is_held_type+0xbb/0xf0 [ 68.256355][ T6902] do_group_exit+0x125/0x310 [ 68.260959][ T6902] __x64_sys_exit_group+0x3a/0x50 [ 68.265986][ T6902] do_syscall_64+0x2d/0x70 [ 68.270410][ T6902] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.276297][ T6902] RIP: 0033:0x440038 [ 68.280181][ T6902] Code: Bad RIP value. executing program [ 68.284272][ T6902] RSP: 002b:00007ffdcad36038 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 68.292688][ T6902] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440038 [ 68.300772][ T6902] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 68.310049][ T6902] RBP: 00000000004bf870 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 68.318023][ T6902] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 68.326003][ T6902] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 68.333995][ T6907] CPU: 1 PID: 6907 Comm: syz-executor395 Not tainted 5.9.0-rc2-next-20200828-syzkaller #0 [ 68.343899][ T6907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.353951][ T6907] Call Trace: [ 68.357240][ T6907] dump_stack+0x18f/0x20d [ 68.361563][ T6907] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 68.367453][ T6907] __warn.cold+0x42/0xc1 [ 68.371691][ T6907] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 68.377569][ T6907] report_bug+0x1bd/0x210 [ 68.381889][ T6907] handle_bug+0x38/0x90 [ 68.386047][ T6907] exc_invalid_op+0x14/0x40 [ 68.390540][ T6907] asm_exc_invalid_op+0x12/0x20 [ 68.395384][ T6907] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 68.401877][ T6907] Code: ff e8 62 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 50 0a 5b fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 3e 0a 5b fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 7c 85 9b fb e9 7b fa ff [ 68.421465][ T6907] RSP: 0018:ffffc900055d79b0 EFLAGS: 00010293 [ 68.427519][ T6907] RAX: 0000000000000000 RBX: ffffc900055d7a98 RCX: ffffffff86196de9 [ 68.435478][ T6907] RDX: ffff888092a52400 RSI: ffffffff86197252 RDI: 0000000000000005 [ 68.443438][ T6907] RBP: 1ffff92000abaf38 R08: 0000000000000000 R09: ffffffff8abc718f [ 68.451400][ T6907] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900055d7ab8 [ 68.459356][ T6907] R13: ffffc900055d7ad8 R14: 0000000000000000 R15: ffffc900055d7ad8 [ 68.467332][ T6907] ? snd_pcm_plugin_build_mulaw+0x249/0x7e0 [ 68.473225][ T6907] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 68.479105][ T6907] ? mulaw_decode+0x750/0x750 [ 68.483766][ T6907] ? mulaw_encode+0x780/0x780 [ 68.488438][ T6907] ? cpu_latency_qos_add_request+0x103/0x3d0 [ 68.494409][ T6907] snd_pcm_plug_format_plugins+0xb76/0x1360 [ 68.500305][ T6907] ? snd_pcm_plug_slave_format+0x5a0/0x5a0 [ 68.506100][ T6907] ? snd_pcm_oss_disconnect_minor+0x340/0x340 [ 68.512158][ T6907] snd_pcm_oss_change_params_locked+0x3015/0x3430 [ 68.518577][ T6907] ? snd_pcm_plugin_append+0x190/0x190 [ 68.524030][ T6907] ? mutex_lock_io_nested+0xf60/0xf60 [ 68.529393][ T6907] ? tomoyo_path_number_perm+0x244/0x4d0 [ 68.535020][ T6907] ? lock_acquire+0x1f1/0xad0 [ 68.539689][ T6907] ? __might_fault+0xef/0x1d0 [ 68.544355][ T6907] snd_pcm_oss_get_active_substream+0x164/0x1c0 [ 68.550582][ T6907] snd_pcm_oss_get_formats+0x75/0x340 [ 68.555943][ T6907] ? snd_pcm_oss_get_active_substream+0x1c0/0x1c0 [ 68.562349][ T6907] snd_pcm_oss_ioctl+0xfd3/0x3370 [ 68.567375][ T6907] ? _down_write_nest_lock+0x150/0x150 [ 68.572822][ T6907] ? snd_pcm_oss_release+0x300/0x300 [ 68.578093][ T6907] ? vmacache_update+0xce/0x140 [ 68.582935][ T6907] ? bpf_lsm_file_ioctl+0x5/0x10 [ 68.587858][ T6907] ? snd_pcm_oss_release+0x300/0x300 [ 68.593130][ T6907] __x64_sys_ioctl+0x193/0x200 [ 68.597879][ T6907] do_syscall_64+0x2d/0x70 [ 68.602283][ T6907] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.608173][ T6907] RIP: 0033:0x4413c9 [ 68.612067][ T6907] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 6b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.631669][ T6907] RSP: 002b:00007ffdcad36088 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 68.640077][ T6907] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004413c9 [ 68.648046][ T6907] RDX: 0000000020000000 RSI: 00000000c0045005 RDI: 0000000000000003 [ 68.656001][ T6907] RBP: 000000000001052f R08: 00000000004002c8 R09: 00000000004002c8 [ 68.663956][ T6907] R10: 0000000000000004 R11: 0000000000000246 R12: 00000000004020c0 [ 68.671921][ T6907] R13: 0000000000402150 R14: 0000000000000000 R15: 0000000000000000 [ 68.681333][ T6902] Kernel Offset: disabled [ 68.685711][ T6902] Rebooting in 86400 seconds..