Warning: Permanently added '10.128.0.191' (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 syzkaller login: [ 71.415637][ T6863] ------------[ cut here ]------------ [ 71.426539][ T6866] ------------[ cut here ]------------ [ 71.435984][ T6863] WARNING: CPU: 1 PID: 6863 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.445605][ T6866] WARNING: CPU: 0 PID: 6866 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.470997][ T6867] ------------[ cut here ]------------ [ 71.477699][ T6863] Kernel panic - not syncing: panic_on_warn set ... [ 71.479496][ T6869] ------------[ cut here ]------------ [ 71.484305][ T6863] CPU: 1 PID: 6863 Comm: syz-executor868 Not tainted 5.9.0-rc2-syzkaller #0 [ 71.484314][ T6863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.484319][ T6863] Call Trace: [ 71.484342][ T6863] dump_stack+0x18f/0x20d [ 71.484361][ T6863] panic+0x2e3/0x75c [ 71.484378][ T6863] ? __warn_printk+0xf3/0xf3 [ 71.484394][ T6863] ? printk+0xba/0xed [ 71.484406][ T6863] ? log_store.cold+0x16/0x16 [ 71.484427][ T6863] ? __warn.cold+0x5/0x4a [ 71.489991][ T6866] Modules linked in: [ 71.498541][ T6863] ? __warn+0xd6/0x1f2 [ 71.498563][ T6863] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.498578][ T6863] __warn.cold+0x20/0x4a [ 71.498596][ T6863] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.498611][ T6863] report_bug+0x1bd/0x210 [ 71.498632][ T6863] handle_bug+0x38/0x90 [ 71.498647][ T6863] exc_invalid_op+0x14/0x40 [ 71.498666][ T6863] asm_exc_invalid_op+0x12/0x20 [ 71.516426][ T6869] WARNING: CPU: 0 PID: 6869 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.520187][ T6863] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.520203][ T6863] Code: ff e8 a2 28 5e fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 90 28 5e fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 7e 28 5e fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 ec 40 9e fb e9 7b fa ff [ 71.520211][ T6863] RSP: 0018:ffffc90001517910 EFLAGS: 00010293 [ 71.525295][ T6869] Modules linked in: [ 71.528756][ T6863] RAX: 0000000000000000 RBX: ffffc900015179f8 RCX: ffffffff86161229 [ 71.528766][ T6863] RDX: ffff88809471c000 RSI: ffffffff86161692 RDI: 0000000000000005 [ 71.528775][ T6863] RBP: 1ffff920002a2f24 R08: 0000000000000000 R09: ffffffff8ab2364f [ 71.528784][ T6863] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001517a18 [ 71.528801][ T6863] R13: ffffc90001517a38 R14: 0000000000000000 R15: ffffc90001517a18 [ 71.533943][ T6866] CPU: 0 PID: 6866 Comm: syz-executor868 Not tainted 5.9.0-rc2-syzkaller #0 [ 71.537787][ T6863] ? snd_pcm_plugin_build_mulaw+0x249/0x7e0 [ 71.537803][ T6863] ? snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.537824][ T6863] ? mulaw_transfer+0x290/0x290 [ 71.541789][ T6869] CPU: 0 PID: 6869 Comm: syz-executor868 Not tainted 5.9.0-rc2-syzkaller #0 [ 71.545764][ T6863] ? mulaw_encode+0x780/0x780 [ 71.545780][ T6863] ? cpu_latency_qos_add_request+0x103/0x3d0 [ 71.545802][ T6863] snd_pcm_plug_format_plugins+0xb76/0x1360 [ 71.545820][ T6863] ? snd_pcm_hw_param_near.constprop.0+0x62e/0x810 [ 71.545836][ T6863] ? snd_pcm_plug_slave_format+0x5a0/0x5a0 [ 71.545856][ T6863] ? snd_pcm_oss_disconnect_minor+0x340/0x340 [ 71.545879][ T6863] snd_pcm_oss_change_params_locked+0x3015/0x3430 [ 71.545910][ T6863] ? snd_pcm_plugin_append+0x190/0x190 [ 71.552807][ T6866] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.556030][ T6863] ? mutex_lock_io_nested+0xf60/0xf60 [ 71.556056][ T6863] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 71.556075][ T6863] ? __fsnotify_parent+0x48c/0x930 [ 71.565531][ T6869] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.566286][ T6863] snd_pcm_oss_make_ready+0xe6/0x2e0 [ 71.570533][ T6866] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.574932][ T6863] snd_pcm_oss_sync+0x2e0/0x800 [ 71.574949][ T6863] ? lock_is_held_type+0xbb/0xf0 [ 71.574973][ T6863] snd_pcm_oss_release+0x276/0x300 [ 71.574989][ T6863] __fput+0x285/0x920 [ 71.575004][ T6863] ? snd_pcm_oss_sync+0x800/0x800 [ 71.575021][ T6863] task_work_run+0xdd/0x190 [ 71.575039][ T6863] do_exit+0xb7d/0x29f0 [ 71.580431][ T6866] Code: ff e8 a2 28 5e fb 0f 0b 41 bc fa ff ff ff e9 fc fe ff ff e8 90 28 5e fb 0f 0b 41 bc fa ff ff ff e9 ea fe ff ff e8 7e 28 5e fb <0f> 0b 41 bc fa ff ff ff e9 d8 fe ff ff e8 ec 40 9e fb e9 7b fa ff [ 71.590353][ T6863] ? mm_update_next_owner+0x7a0/0x7a0 [ 71.590378][ T6863] ? lock_is_held_type+0xbb/0xf0 [ 71.590396][ T6863] do_group_exit+0x125/0x310 [ 71.590412][ T6863] __x64_sys_exit_group+0x3a/0x50 [ 71.590426][ T6863] do_syscall_64+0x2d/0x70 [ 71.590440][ T6863] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.590451][ T6863] RIP: 0033:0x440038 [ 71.590463][ T6863] Code: Bad RIP value. [ 71.597563][ T6869] RIP: 0010:snd_pcm_plugin_build_mulaw+0x6b2/0x7e0 [ 71.616573][ T6863] RSP: 002b:00007ffd5c7994d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 71.616588][ T6863] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440038 [ 71.616596][ T6863] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 71.616604][ T6863] RBP: 00000000004bf870 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 71.616612][ T6863] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 71.616621][ T6863] R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 [ 71.623915][ T6863] Kernel Offset: disabled [ 71.945109][ T6863] Rebooting in 86400 seconds..