WARNING: CPU: 0 PID: 10325 at kernel/fork.c:677 __mmdrop+0x318/0x3b0 kernel/fork.c:677
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 10325 Comm: syz-executor.1 Not tainted 5.3.0-rc1+ #52
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+0x1d8/0x2f8 lib/dump_stack.c:113
 panic+0x29b/0x7d9 kernel/panic.c:219
 __warn+0x22f/0x230 kernel/panic.c:576
 report_bug+0x190/0x290 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1026
RIP: 0010:__mmdrop+0x318/0x3b0 kernel/fork.c:677
Code: 76 6a 00 49 8b 37 48 c7 c7 10 de 7c 88 31 c0 e8 c1 2b 18 00 e9 40 ff ff ff e8 74 cc 2f 00 0f 0b e9 50 fd ff ff e8 68 cc 2f 00 <0f> 0b e9 6f fd ff ff e8 5c cc 2f 00 48 c7 c7 dd dd 7c 88 4c 89 f6
RSP: 0000:ffff88805c11f7b0 EFLAGS: 00010293
RAX: ffffffff81480fd8 RBX: ffff88805c1aa428 RCX: ffff88805c1aa000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880534a4ec0
RBP: ffff88805c11f7d8 R08: ffffffff81482192 R09: ffffed100a6949e4
R10: ffffed100a6949e4 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff8880534a4fe8 R14: ffff8880534a4ec0 R15: ffff88805c1aa430
 mmdrop include/linux/sched/mm.h:49 [inline]
 __mmput+0x373/0x3a0 kernel/fork.c:1074
 mmput+0x5d/0x70 kernel/fork.c:1085
 exit_mm+0x585/0x640 kernel/exit.c:547
 do_exit+0x5d0/0x2340 kernel/exit.c:865
 do_group_exit+0x15c/0x2b0 kernel/exit.c:982
 get_signal+0x51c/0x1dd0 kernel/signal.c:2728
 do_signal+0x7b/0x720 arch/x86/kernel/signal.c:815
 exit_to_usermode_loop arch/x86/entry/common.c:159 [inline]
 prepare_exit_to_usermode+0x303/0x580 arch/x86/entry/common.c:194
 syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:274
 do_syscall_64+0x126/0x140 arch/x86/entry/common.c:299
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459829
Code: Bad RIP value.
RSP: 002b:00007fac69bbfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000020000080 RSI: 000000004028af11 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac69bc06d4
R13: 00000000004c4787 R14: 00000000004d89a8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..