audit: type=1400 audit(1599419510.982:8): avc: denied { execmem } for pid=6337 comm="syz-executor797" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6348 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x616/0x71c sound/core/oss/mulaw.c:332 ------------[ cut here ]------------ Kernel panic - not syncing: panic_on_warn set ... WARNING: CPU: 0 PID: 6347 at sound/core/oss/mulaw.c:332 snd_pcm_plugin_build_mulaw+0x616/0x71c sound/core/oss/mulaw.c:332 CPU: 1 PID: 6348 Comm: syz-executor797 Not tainted 4.14.196-syzkaller #0 Modules linked in: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 CPU: 0 PID: 6347 Comm: syz-executor797 Not tainted 4.14.196-syzkaller #0 Call Trace: Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 task: ffff888098308400 task.stack: ffff888099c50000 panic+0x1f9/0x42d kernel/panic.c:183 RIP: 0010:snd_pcm_plugin_build_mulaw+0x616/0x71c sound/core/oss/mulaw.c:332 RSP: 0018:ffff888099c57928 EFLAGS: 00010297 RAX: ffff888098308400 RBX: ffff888099c579e8 RCX: ffff888099c579e8 __warn.cold+0x20/0x4b kernel/panic.c:547 RDX: 0000000000000000 RSI: ffff888099c57a28 RDI: ffffffff8867588b RBP: 1ffff1101338af27 R08: ffffffff8a0a0400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888099c57a08 report_bug+0x208/0x249 lib/bug.c:186 R13: ffff888099c57a28 R14: ffff88809b726d80 R15: 000000000000000e fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 FS: 000000000091d880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004bf868 CR3: 00000000a3c03000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 RIP: 0010:snd_pcm_plugin_build_mulaw+0x616/0x71c sound/core/oss/mulaw.c:332 Call Trace: RSP: 0018:ffff888097c97928 EFLAGS: 00010297 RAX: ffff888087532440 RBX: ffff888097c979e8 RCX: ffff888097c979e8 RDX: 0000000000000000 RSI: ffff888097c97a28 RDI: ffffffff8867588b snd_pcm_plug_format_plugins+0xb5c/0x1160 sound/core/oss/pcm_plugin.c:517 RBP: 1ffff11012f92f27 R08: ffffffff8a0a0400 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888097c97a08 R13: ffff888097c97a28 R14: ffff88809b727200 R15: 000000000000000e snd_pcm_oss_change_params_locked+0x2608/0x31a0 sound/core/oss/pcm_oss.c:970 snd_pcm_plug_format_plugins+0xb5c/0x1160 sound/core/oss/pcm_plugin.c:517 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1102 [inline] snd_pcm_oss_make_ready+0xbf/0x2b0 sound/core/oss/pcm_oss.c:1161 snd_pcm_oss_sync+0x1be/0x740 sound/core/oss/pcm_oss.c:1722 snd_pcm_oss_release+0x26b/0x2f0 sound/core/oss/pcm_oss.c:2561 snd_pcm_oss_change_params_locked+0x2608/0x31a0 sound/core/oss/pcm_oss.c:970 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa08/0x27f0 kernel/exit.c:865 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1102 [inline] snd_pcm_oss_make_ready+0xbf/0x2b0 sound/core/oss/pcm_oss.c:1161 snd_pcm_oss_sync+0x1be/0x740 sound/core/oss/pcm_oss.c:1722 snd_pcm_oss_release+0x26b/0x2f0 sound/core/oss/pcm_oss.c:2561 do_group_exit+0x100/0x2e0 kernel/exit.c:962 SYSC_exit_group kernel/exit.c:973 [inline] SyS_exit_group+0x19/0x20 kernel/exit.c:971 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xa08/0x27f0 kernel/exit.c:865 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x440028 RSP: 002b:00007ffff6f58bc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440028 do_group_exit+0x100/0x2e0 kernel/exit.c:962 RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 SYSC_exit_group kernel/exit.c:973 [inline] SyS_exit_group+0x19/0x20 kernel/exit.c:971 RBP: 00000000004bf830 R08: 00000000000000e7 R09: ffffffffffffffd0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 entry_SYSCALL_64_after_hwframe+0x46/0xbb Code: RIP: 0033:0x440028 ff RSP: 002b:00007ffff6f58bc8 EFLAGS: 00000246 ff ORIG_RAX: 00000000000000e7 e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440028 2e RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 5c RBP: 00000000004bf830 R08: 00000000000000e7 R09: ffffffffffffffd0 68 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 fc R13: 00000000006d1180 R14: 0000000000000000 R15: 0000000000000000 0f 0b 41 bc fa ff ff ff e9 0f ff ff ff e8 1c 5c 68 fc 0f 0b 41 bc fa ff ff ff e9 fd fe ff ff e8 0a 5c 68 fc <0f> 0b 41 bc fa ff ff ff e9 eb fe ff ff 4c 89 e7 e8 75 27 92 fc ---[ end trace 7058c818ff52e1b4 ]--- Kernel Offset: disabled Rebooting in 86400 seconds..