tcp_sendmsg_locked+0xc00/0x2e60 net/ipv4/tcp.c:1309
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1458
 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821
 sock_sendmsg_nosec net/socket.c:702 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:722
 sock_write_iter+0x289/0x3c0 net/socket.c:1049
 call_write_iter include/linux/fs.h:2114 [inline]
 new_sync_write+0x426/0x650 fs/read_write.c:518
------------[ cut here ]------------
kernel BUG at mm/mmu_gather.c:87!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9991 Comm: syz-executor.2 Tainted: G        W         5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__tlb_remove_page_size+0x1f1/0x420 mm/mmu_gather.c:87
Code: d2 0f 85 ef 01 00 00 8b 6d 0c e9 34 ff ff ff e8 85 3f c8 ff 0f 0b e8 7e 3f c8 ff 48 c7 c6 20 62 96 89 4c 89 f7 e8 9f ce fa ff <0f> 0b e8 68 3f c8 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc90002c97768 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90002c97a80 RCX: 0000000000000000
RDX: ffff888086318000 RSI: ffffffff81ac7f61 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000001b R09: 00000000ffffffff
R10: ffffffff88e1beae R11: 00000000ffffffff R12: 0000000000000000
R13: 0000000000000001 R14: ffffea0000f78c40 R15: ffffc90002c97aa8
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000542bf8 CR3: 0000000041d03000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __tlb_remove_page include/asm-generic/tlb.h:440 [inline]
 zap_pte_range mm/memory.c:1272 [inline]
 zap_pmd_range mm/memory.c:1384 [inline]
 zap_pud_range mm/memory.c:1413 [inline]
 zap_p4d_range mm/memory.c:1434 [inline]
 unmap_page_range+0xf22/0x2890 mm/memory.c:1455
 unmap_single_vma+0x198/0x300 mm/memory.c:1500
 unmap_vmas+0x16d/0x2f0 mm/memory.c:1532
 exit_mmap+0x1d0/0x620 mm/mmap.c:3202
 __mmput+0x122/0x470 kernel/fork.c:1101
 mmput+0x58/0x60 kernel/fork.c:1122
 exit_mm kernel/exit.c:501 [inline]
 do_exit+0xae2/0x2a50 kernel/exit.c:812
 do_group_exit+0x125/0x310 kernel/exit.c:922
 get_signal+0x47f/0x2150 kernel/signal.c:2796
 arch_do_signal_or_restart+0x2a9/0x1eb0 arch/x86/kernel/signal.c:789
 handle_signal_work kernel/entry/common.c:148 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:172 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: Unable to access opcode bytes at RIP 0x4665af.
RSP: 002b:00007f21ea207218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 000000000056bf88 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf88
RBP: 000000000056bf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf8c
R13: 00007ffe0589848f R14: 00007f21ea207300 R15: 0000000000022000
Modules linked in:
---[ end trace 603494d9f5a4f559 ]---
RIP: 0010:__tlb_remove_page_size+0x1f1/0x420 mm/mmu_gather.c:87
Code: d2 0f 85 ef 01 00 00 8b 6d 0c e9 34 ff ff ff e8 85 3f c8 ff 0f 0b e8 7e 3f c8 ff 48 c7 c6 20 62 96 89 4c 89 f7 e8 9f ce fa ff <0f> 0b e8 68 3f c8 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc90002c97768 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc90002c97a80 RCX: 0000000000000000
RDX: ffff888086318000 RSI: ffffffff81ac7f61 RDI: 0000000000000003
RBP: 0000000000000000 R08: 000000000000001b R09: 00000000ffffffff
R10: ffffffff88e1beae R11: 00000000ffffffff R12: 0000000000000000
R13: 0000000000000001 R14: ffffea0000f78c40 R15: ffffc90002c97aa8
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000542bf8 CR3: 0000000041d03000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400