------------[ cut here ]------------ WARNING: CPU: 0 PID: 4711 at net/mptcp/protocol.c:705 __mptcp_move_skbs_from_subflow+0x23b8/0x24a0 net/mptcp/protocol.c:705 Modules linked in: CPU: 0 PID: 4711 Comm: syz.0.68 Not tainted 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mptcp_move_skbs_from_subflow+0x23b8/0x24a0 net/mptcp/protocol.c:705 lr : __mptcp_move_skbs_from_subflow+0x23b8/0x24a0 net/mptcp/protocol.c:705 sp : ffff800008006e00 x29: ffff800008006f80 x28: 0000000000000000 x27: ffff0000d82d88b8 x26: ffff0000d04f0c4c x25: ffff0000c925aff8 x24: 0000000000000000 x23: dfff800000000000 x22: ffff0000dc1c085c x21: ffff0000d82d8210 x20: 000000000000c0d8 x19: 0000000000007c1b x18: ffff0000c925b080 x17: ffff80019e3d5000 x16: ffff8000084fb1ec x15: 0000000000000000 x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff800012190250 x8 : ffff0000d7b9b780 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff80001218edb4 x2 : 0000000000000001 x1 : 000000000000c0d8 x0 : 0000000000007c1b Call trace: __mptcp_move_skbs_from_subflow+0x23b8/0x24a0 net/mptcp/protocol.c:705 move_skbs_to_msk net/mptcp/protocol.c:818 [inline] mptcp_data_ready+0x188/0x50c net/mptcp/protocol.c:861 subflow_data_ready+0x178/0x234 net/mptcp/subflow.c:1374 tcp_data_ready+0x22c/0x44c net/ipv4/tcp_input.c:5064 tcp_data_queue+0x1cc8/0x53e4 net/ipv4/tcp_input.c:5138 tcp_rcv_established+0xa84/0x1fe0 net/ipv4/tcp_input.c:6070 tcp_v4_do_rcv+0x390/0xb08 net/ipv4/tcp_ipv4.c:1680 tcp_v4_rcv+0x20e4/0x2818 net/ipv4/tcp_ipv4.c:2111 ip_protocol_deliver_rcu+0x340/0x764 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x258/0x49c net/ipv4/ip_input.c:233 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_local_deliver+0x11c/0x190 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:454 [inline] ip_rcv_finish+0x224/0x250 net/ipv4/ip_input.c:449 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_rcv+0x78/0x98 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5528 [inline] __netif_receive_skb+0x18c/0x400 net/core/dev.c:5642 process_backlog+0x410/0x784 net/core/dev.c:5970 __napi_poll+0xb4/0x3f0 net/core/dev.c:6537 napi_poll net/core/dev.c:6604 [inline] net_rx_action+0x5cc/0xd3c net/core/dev.c:6718 handle_softirqs+0x318/0xd58 kernel/softirq.c:571 __do_softirq+0x14/0x20 kernel/softirq.c:605 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:893 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:654 irq_exit_rcu+0x14/0x84 kernel/softirq.c:666 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 check_kcov_mode kernel/kcov.c:184 [inline] write_comp_data kernel/kcov.c:245 [inline] __sanitizer_cov_trace_const_cmp2+0x60/0xb0 kernel/kcov.c:306 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x55c/0x848 net/socket.c:2514 ___sys_sendmsg net/socket.c:2568 [inline] __sys_sendmmsg+0x318/0x7d8 net/socket.c:2654 __do_sys_sendmmsg net/socket.c:2683 [inline] __se_sys_sendmmsg net/socket.c:2680 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2680 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 51391 hardirqs last enabled at (51390): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (51391): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (50770): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (50770): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599 softirqs last disabled at (51343): [] __do_softirq+0x14/0x20 kernel/softirq.c:605 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at net/mptcp/protocol.c:708 __mptcp_move_skbs_from_subflow+0x1aa4/0x24a0 net/mptcp/protocol.c:708 Modules linked in: CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mptcp_move_skbs_from_subflow+0x1aa4/0x24a0 net/mptcp/protocol.c:708 lr : __mptcp_move_skbs_from_subflow+0x1aa4/0x24a0 net/mptcp/protocol.c:708 sp : ffff80001d176ba0 x29: ffff80001d176d20 x28: 0000000000000000 x27: ffff0000d82d88b8 x26: ffff0000d04f0c4c x25: 1fffe0001ca145fe x24: 0000000000000000 x23: dfff800000000000 x22: 1fffe0001ca14603 x21: 00000000ffff3f28 x20: ffff0000e50a2ff0 x19: 1fffe0001b838039 x18: ffff0000e50a3080 x17: 321ad9b100fa0a08 x16: ffff8000084fb1ec x15: 0000000000000000 x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: ffff700003a2ed98 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff80001218f93c x8 : ffff0000c09bb780 x7 : ffff800012180788 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80000831df28 x2 : ffff80001d176da0 x1 : 00000000ffff3f28 x0 : 000000000000b92b Call trace: __mptcp_move_skbs_from_subflow+0x1aa4/0x24a0 net/mptcp/protocol.c:708 move_skbs_to_msk net/mptcp/protocol.c:818 [inline] mptcp_data_ready+0x188/0x50c net/mptcp/protocol.c:861 subflow_data_ready+0x178/0x234 net/mptcp/subflow.c:1374 tcp_data_ready+0x22c/0x44c net/ipv4/tcp_input.c:5064 tcp_data_queue+0x1cc8/0x53e4 net/ipv4/tcp_input.c:5138 tcp_rcv_established+0xa84/0x1fe0 net/ipv4/tcp_input.c:6070 tcp_v4_do_rcv+0x390/0xb08 net/ipv4/tcp_ipv4.c:1680 tcp_v4_rcv+0x20e4/0x2818 net/ipv4/tcp_ipv4.c:2111 ip_protocol_deliver_rcu+0x340/0x764 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x258/0x49c net/ipv4/ip_input.c:233 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_local_deliver+0x11c/0x190 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:454 [inline] ip_rcv_finish+0x224/0x250 net/ipv4/ip_input.c:449 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_rcv+0x78/0x98 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5528 [inline] __netif_receive_skb+0x18c/0x400 net/core/dev.c:5642 process_backlog+0x410/0x784 net/core/dev.c:5970 __napi_poll+0xb4/0x3f0 net/core/dev.c:6537 napi_poll net/core/dev.c:6604 [inline] net_rx_action+0x5cc/0xd3c net/core/dev.c:6718 handle_softirqs+0x318/0xd58 kernel/softirq.c:571 run_ksoftirqd+0x6c/0x29c kernel/softirq.c:938 smpboot_thread_fn+0x4b0/0x96c kernel/smpboot.c:164 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 irq event stamp: 404305 hardirqs last enabled at (404304): [] __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:401 hardirqs last disabled at (404305): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (404182): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (404182): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599 softirqs last disabled at (404187): [] run_ksoftirqd+0x6c/0x29c kernel/softirq.c:938 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15 at net/mptcp/subflow.c:858 skb_is_fully_mapped net/mptcp/subflow.c:858 [inline] WARNING: CPU: 0 PID: 15 at net/mptcp/subflow.c:858 get_mapping_status net/mptcp/subflow.c:1067 [inline] WARNING: CPU: 0 PID: 15 at net/mptcp/subflow.c:858 subflow_check_data_avail net/mptcp/subflow.c:1208 [inline] WARNING: CPU: 0 PID: 15 at net/mptcp/subflow.c:858 mptcp_subflow_data_available+0x1968/0x34dc net/mptcp/subflow.c:1311 Modules linked in: CPU: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.1.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : skb_is_fully_mapped net/mptcp/subflow.c:858 [inline] pc : get_mapping_status net/mptcp/subflow.c:1067 [inline] pc : subflow_check_data_avail net/mptcp/subflow.c:1208 [inline] pc : mptcp_subflow_data_available+0x1968/0x34dc net/mptcp/subflow.c:1311 lr : skb_is_fully_mapped net/mptcp/subflow.c:858 [inline] lr : get_mapping_status net/mptcp/subflow.c:1067 [inline] lr : subflow_check_data_avail net/mptcp/subflow.c:1208 [inline] lr : mptcp_subflow_data_available+0x1968/0x34dc net/mptcp/subflow.c:1311 sp : ffff80001d176c80 x29: ffff80001d176de0 x28: ffff0000e50a34f0 x27: dfff800000000000 x26: ffff0000d04f0c00 x25: 0000000000000000 x24: 00000000000277eb x23: 00000000fffe85fd x22: 00000000000401e9 x21: ffff0000dc1c01b8 x20: dfff800000000000 x19: 00000000bc7ad15f x18: ffff0000e50a3580 x17: 00000000ffff0000 x16: ffff8000084fb1ec x15: 0000000000000000 x14: 00000000ffff8000 x13: 0000000000000003 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff80001219e72c x8 : ffff0000c09bb780 x7 : 0000000000000000 x6 : 0200000000000002 x5 : ffff0000e722cf30 x4 : 0000000000000000 x3 : ffff8000121aa1a0 x2 : 0000000000000000 x1 : 00000000fffe85fd x0 : 000000000000fde8 Call trace: skb_is_fully_mapped net/mptcp/subflow.c:858 [inline] get_mapping_status net/mptcp/subflow.c:1067 [inline] subflow_check_data_avail net/mptcp/subflow.c:1208 [inline] mptcp_subflow_data_available+0x1968/0x34dc net/mptcp/subflow.c:1311 subflow_data_ready+0x164/0x234 net/mptcp/subflow.c:1373 tcp_data_ready+0x22c/0x44c net/ipv4/tcp_input.c:5064 tcp_data_queue+0x1cc8/0x53e4 net/ipv4/tcp_input.c:5138 tcp_rcv_established+0xa84/0x1fe0 net/ipv4/tcp_input.c:6070 tcp_v4_do_rcv+0x390/0xb08 net/ipv4/tcp_ipv4.c:1680 tcp_v4_rcv+0x20e4/0x2818 net/ipv4/tcp_ipv4.c:2111 ip_protocol_deliver_rcu+0x340/0x764 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x258/0x49c net/ipv4/ip_input.c:233 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_local_deliver+0x11c/0x190 net/ipv4/ip_input.c:254 dst_input include/net/dst.h:454 [inline] ip_rcv_finish+0x224/0x250 net/ipv4/ip_input.c:449 NF_HOOK+0x328/0x3d4 include/linux/netfilter.h:302 ip_rcv+0x78/0x98 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5528 [inline] __netif_receive_skb+0x18c/0x400 net/core/dev.c:5642 process_backlog+0x410/0x784 net/core/dev.c:5970 __napi_poll+0xb4/0x3f0 net/core/dev.c:6537 napi_poll net/core/dev.c:6604 [inline] net_rx_action+0x5cc/0xd3c net/core/dev.c:6718 handle_softirqs+0x318/0xd58 kernel/softirq.c:571 run_ksoftirqd+0x6c/0x29c kernel/softirq.c:938 smpboot_thread_fn+0x4b0/0x96c kernel/smpboot.c:164 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 irq event stamp: 404483 hardirqs last enabled at (404482): [] __local_bh_enable_ip+0x230/0x470 kernel/softirq.c:401 hardirqs last disabled at (404483): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (404182): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (404182): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:599 softirqs last disabled at (404187): [] run_ksoftirqd+0x6c/0x29c kernel/softirq.c:938 ---[ end trace 0000000000000000 ]---