WARNING: CPU: 0 PID: 26877 at kernel/cgroup/cgroup.c:6008 cgroup_exit+0x51a/0x5d0 kernel/cgroup/cgroup.c:6008 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 26877 Comm: syz-executor.4 Not tainted 5.1.0-next-20190507 #2 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2cb/0x75a kernel/panic.c:218 __warn.cold+0x20/0x47 kernel/panic.c:575 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972 RIP: 0010:cgroup_exit+0x51a/0x5d0 kernel/cgroup/cgroup.c:6008 Code: 00 48 c7 c2 20 7f 6d 87 be d3 01 00 00 48 c7 c7 20 80 6d 87 c6 05 01 93 f1 07 01 e8 fb 03 ed ff e9 b1 fb ff ff e8 96 f9 05 00 <0f> 0b e9 75 fc ff ff e8 8a f9 05 00 48 c7 c2 e0 82 6d 87 be 85 02 RSP: 0018:ffff888098957a80 EFLAGS: 00010093 RAX: ffff888069986380 RBX: 0000000000000001 RCX: ffffffff816b0b5e RDX: 0000000000000000 RSI: ffffffff816b0eea RDI: 0000000000000001 RBP: ffff888098957b18 R08: ffff888069986380 R09: ffffed101312af3e R10: ffffed101312af3d R11: 0000000000000003 R12: ffff888069986380 R13: ffff8880881af200 R14: ffff888098957af0 R15: 1ffff1101312af52 do_exit+0x97a/0x2fa0 kernel/exit.c:889 do_group_exit+0x135/0x370 kernel/exit.c:980 get_signal+0x425/0x2270 kernel/signal.c:2638 do_signal+0x87/0x1900 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:276 [inline] do_syscall_64+0x57e/0x670 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f25e1f9fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffea RBX: 0000000000000005 RCX: 0000000000458da9 RDX: 0000000000000010 RSI: 0000000000000006 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000267 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00007f25e1fa06d4 R13: 00000000004c6e18 R14: 00000000004dbdc8 R15: 00000000ffffffff Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..