------------[ cut here ]------------
WARNING: CPU: 1 PID: 12888 at mm/memory.c:2229 cow_user_page mm/memory.c:2229 [inline]
WARNING: CPU: 1 PID: 12888 at mm/memory.c:2229 wp_page_copy+0x10b7/0x1560 mm/memory.c:2414
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 12888 Comm: syz-executor.0 Not tainted 5.5.0-rc2-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+0x197/0x210 lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x3e kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:cow_user_page mm/memory.c:2229 [inline]
RIP: 0010:wp_page_copy+0x10b7/0x1560 mm/memory.c:2414
Code: 4c 89 f7 ba 00 10 00 00 48 81 e6 00 f0 ff ff e8 2f 02 23 06 31 ff 41 89 c7 89 c6 e8 23 03 d3 ff 45 85 ff 74 0f e8 99 01 d3 ff <0f> 0b 4c 89 f7 e8 5f f4 22 06 e8 8a 01 d3 ff 65 4c 8b 34 25 c0 1e
RSP: 0018:ffffc90005fb78c8 EFLAGS: 00010216
RAX: 0000000000040000 RBX: ffffc90005fb7b78 RCX: ffffc90001e69000
RDX: 0000000000000412 RSI: ffffffff81a22a07 RDI: 0000000000000005
RBP: ffffc90005fb7a08 R08: ffff888059a0a300 R09: 0000000000000000
R10: ffffed10103523ff R11: ffff888081a91fff R12: ffff8880a6983568
R13: ffffea000206a440 R14: ffff888081a91000 R15: 0000000000001000
 do_wp_page+0x543/0x1540 mm/memory.c:2724
 handle_pte_fault mm/memory.c:3961 [inline]
 __handle_mm_fault+0x327b/0x3da0 mm/memory.c:4075
 handle_mm_fault+0x3b2/0xa50 mm/memory.c:4112
 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline]
 __do_page_fault+0x536/0xd80 arch/x86/mm/fault.c:1506
 do_page_fault+0x38/0x590 arch/x86/mm/fault.c:1530
 page_fault+0x39/0x40 arch/x86/entry/entry_64.S:1203
RIP: 0010:__put_user_4+0x1c/0x30 arch/x86/lib/putuser.S:70
Code: 1f 00 c3 90 66 2e 0f 1f 84 00 00 00 00 00 65 48 8b 1c 25 c0 1e 02 00 48 8b 9b d0 14 00 00 48 83 eb 03 48 39 d9 73 4a 0f 1f 00 <89> 01 31 c0 0f 1f 00 c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 65 48
RSP: 0018:ffffc90005fb7e18 EFLAGS: 00010297
RAX: 0000000000000004 RBX: 00007fffffffeffd RCX: 0000000020000000
RDX: 0000000000000058 RSI: ffffffff81a1da81 RDI: 0000000000000282
RBP: ffffc90005fb7ee0 R08: 0000000000000001 R09: ffff888059a0ab90
R10: fffffbfff14f33c0 R11: ffffffff8a799e07 R12: 0000000000080000
R13: 0000000000000004 R14: 0000000000000005 R15: 0000000000080000
 __do_sys_socketpair net/socket.c:1624 [inline]
 __se_sys_socketpair net/socket.c:1621 [inline]
 __x64_sys_socketpair+0x97/0xf0 net/socket.c:1621
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a919
Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fd552ee2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045a919
RDX: 000000000000003f RSI: 0000000000080000 RDI: 0000000000000005
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 00007fd552ee36d4
R13: 00000000004caab3 R14: 00000000004e3d90 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..