------------[ cut here ]------------ WARNING: CPU: 0 PID: 2273 at ./arch/x86/include/asm/thread_info.h:273 set_restore_sigmask arch/x86/include/asm/thread_info.h:273 [inline]() WARNING: CPU: 0 PID: 2273 at ./arch/x86/include/asm/thread_info.h:273 sigsuspend kernel/signal.c:3534 [inline]() WARNING: CPU: 0 PID: 2273 at ./arch/x86/include/asm/thread_info.h:273 sigsuspend+0x18d/0x1f0 kernel/signal.c:3527() Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 2273 Comm: syz-executor923 Not tainted 4.4.174+ #4 0000000000000000 368e7cdbe52a363d ffff8800b2bafd60 ffffffff81aad1a1 0000000000000000 ffffffff82835ee0 ffffffff8283c0e0 0000000000000111 ffffffff811027fd ffff8800b2bafe40 ffffffff813a48c2 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] panic+0x1b9/0x37b kernel/panic.c:112 [] warn_slowpath_common kernel/panic.c:455 [inline] [] warn_slowpath_common.cold+0x20/0x20 kernel/panic.c:435 [] warn_slowpath_null+0x2a/0x30 kernel/panic.c:492 [] set_restore_sigmask arch/x86/include/asm/thread_info.h:273 [inline] [] sigsuspend kernel/signal.c:3534 [inline] [] sigsuspend+0x18d/0x1f0 kernel/signal.c:3527 [] SYSC_rt_sigsuspend kernel/signal.c:3554 [inline] [] SyS_rt_sigsuspend+0xa1/0xf0 kernel/signal.c:3544 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Kernel Offset: disabled Rebooting in 86400 seconds..