------------[ cut here ]------------ do not call blocking ops when !TASK_RUNNING; state=8 set at [<00000000325bbf10>] ptrace_stop+0x0/0x9e0 kernel/signal.c:2054 WARNING: CPU: 1 PID: 16542 at kernel/sched/core.c:7012 __might_sleep+0x135/0x190 kernel/sched/core.c:7012 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 16542 Comm: syz-executor.1 Not tainted 5.8.0-rc6-next-20200724-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x45 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:545 RIP: 0010:__might_sleep+0x135/0x190 kernel/sched/core.c:7012 Code: 65 48 8b 1c 25 c0 fe 01 00 48 8d 7b 10 48 89 fe 48 c1 ee 03 80 3c 06 00 75 2b 48 8b 73 10 48 c7 c7 c0 3b 4b 88 e8 ed 34 f5 ff <0f> 0b e9 46 ff ff ff e8 af 04 64 00 e9 29 ff ff ff e8 a5 04 64 00 RSP: 0018:ffffc90016167c78 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff88804dc3a1c0 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815d8ed7 RDI: fffff52002c2cf81 RBP: ffffffff884aafa0 R08: 0000000000000001 R09: ffff8880ae7318e7 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000039 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88804dc3a648 try_to_freeze_unsafe include/linux/freezer.h:57 [inline] try_to_freeze include/linux/freezer.h:67 [inline] freezer_count include/linux/freezer.h:128 [inline] freezable_schedule include/linux/freezer.h:173 [inline] ptrace_stop+0x4e2/0x9e0 kernel/signal.c:2215 ptrace_signal kernel/signal.c:2490 [inline] get_signal+0xddc/0x1ee0 kernel/signal.c:2639 do_signal+0x82/0x2520 arch/x86/kernel/signal.c:810 exit_to_usermode_loop arch/x86/entry/common.c:235 [inline] __prepare_exit_to_usermode+0x11f/0x1c0 arch/x86/entry/common.c:269 do_syscall_64+0x6c/0xe0 arch/x86/entry/common.c:393 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c369 Code: Bad RIP value. RSP: 002b:00007fadbd493c78 EFLAGS: 00000246 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 0000000000034e00 RCX: 000000000045c369 RDX: 0000000080000002 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000000078bf48 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007ffcf3ca86ef R14: 00007fadbd4949c0 R15: 000000000078bf0c Kernel Offset: disabled Rebooting in 86400 seconds..