RBP: 00007ffd9cfe8f10 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd9cfe8f70 R14: 00007ffd9cfe8fb0 R15: 00000000000000e5 ------------[ cut here ]------------ page_counter underflow: -4294964016 nr_pages=4294967295 WARNING: CPU: 1 PID: 3883 at mm/page_counter.c:56 page_counter_cancel+0xcf/0xe0 mm/page_counter.c:56 mm/page_counter.c:56 Modules linked in: CPU: 1 PID: 3883 Comm: syz-executor773 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:page_counter_cancel+0xcf/0xe0 mm/page_counter.c:56 mm/page_counter.c:56 Code: c7 04 24 00 00 00 00 45 31 f6 eb 97 e8 1a 95 b4 ff 4c 89 ea 48 89 ee 48 c7 c7 00 d2 b8 89 c6 05 26 95 b9 0b 01 e8 fc d3 3d 07 <0f> 0b eb a8 4c 89 e7 e8 65 5a fb ff eb c7 0f 1f 00 41 56 41 55 49 RSP: 0018:ffffc90002b7f618 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff88801e674120 RCX: 0000000000000000 RDX: ffff8880186c9d00 RSI: ffffffff815f21d8 RDI: fffff5200056feb5 RBP: ffffffff00000cd0 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815ebf7e R11: 0000000000000000 R12: ffff88801e674120 R13: 00000000ffffffff R14: 0000000000000000 R15: 0000000000000001 FS: 00005555565ca3c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000001a12d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_counter_uncharge+0x2e/0x60 mm/page_counter.c:160 mm/page_counter.c:160 drain_stock+0xc1/0x180 mm/memcontrol.c:2166 mm/memcontrol.c:2166 refill_stock+0x139/0x2f0 mm/memcontrol.c:2218 mm/memcontrol.c:2218 __sk_mem_reduce_allocated+0x24d/0x550 net/core/sock.c:2945 net/core/sock.c:2945 __mptcp_rmem_reclaim net/mptcp/protocol.c:167 [inline] __mptcp_rmem_reclaim net/mptcp/protocol.c:167 [inline] net/mptcp/protocol.c:975 __mptcp_mem_reclaim_partial+0x124/0x410 net/mptcp/protocol.c:975 net/mptcp/protocol.c:975 mptcp_mem_reclaim_partial net/mptcp/protocol.c:982 [inline] mptcp_alloc_tx_skb net/mptcp/protocol.c:1212 [inline] mptcp_mem_reclaim_partial net/mptcp/protocol.c:982 [inline] net/mptcp/protocol.c:1279 mptcp_alloc_tx_skb net/mptcp/protocol.c:1212 [inline] net/mptcp/protocol.c:1279 mptcp_sendmsg_frag+0x18c6/0x2190 net/mptcp/protocol.c:1279 net/mptcp/protocol.c:1279 __mptcp_push_pending+0x232/0x7a0 net/mptcp/protocol.c:1545 net/mptcp/protocol.c:1545 mptcp_release_cb+0xfe/0x200 net/mptcp/protocol.c:2978 net/mptcp/protocol.c:2978 release_sock+0xb4/0x1b0 net/core/sock.c:3306 net/core/sock.c:3306 sk_stream_wait_memory+0x604/0xed0 net/core/stream.c:145 net/core/stream.c:145 mptcp_sendmsg+0x8d5/0x1220 net/mptcp/protocol.c:1742 net/mptcp/protocol.c:1742 inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:644 net/ipv6/af_inet6.c:644 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg_nosec net/socket.c:704 [inline] net/socket.c:724 sock_sendmsg+0xcf/0x120 net/socket.c:724 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 net/socket.c:1057 call_write_iter include/linux/fs.h:2162 [inline] call_write_iter include/linux/fs.h:2162 [inline] fs/read_write.c:503 new_sync_write+0x429/0x660 fs/read_write.c:503 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 fs/read_write.c:590 ksys_write+0x1ee/0x250 fs/read_write.c:643 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_x64 arch/x86/entry/common.c:50 [inline] arch/x86/entry/common.c:80 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fd2b4a78879 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 15 00 00 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 73 01 c3 48 c7 c1 c4 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd9cfe8f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd2b4a78879 RDX: 0000000000017f88 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007ffd9cfe8f10 R08: 0000000000000001 R09: 0000000000000033 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd9cfe8f70 R14: 00007ffd9cfe8fb0 R15: 00000000000000e5