CVE-2024-26614

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> tcp: make sure init the accept_queue&amp;#39;s spinlocks once<br /> <br /> When I run syz&amp;#39;s reproduction C program locally, it causes the following<br /> issue:<br /> pvqspinlock: lock 0xffff9d181cd5c660 has corrupted value 0x0!<br /> WARNING: CPU: 19 PID: 21160 at __pv_queued_spin_unlock_slowpath (kernel/locking/qspinlock_paravirt.h:508)<br /> Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011<br /> RIP: 0010:__pv_queued_spin_unlock_slowpath (kernel/locking/qspinlock_paravirt.h:508)<br /> Code: 73 56 3a ff 90 c3 cc cc cc cc 8b 05 bb 1f 48 01 85 c0 74 05 c3 cc cc cc cc 8b 17 48 89 fe 48 c7 c7<br /> 30 20 ce 8f e8 ad 56 42 ff 0b c3 cc cc cc cc 0f 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90<br /> RSP: 0018:ffffa8d200604cb8 EFLAGS: 00010282<br /> RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff9d1ef60e0908<br /> RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9d1ef60e0900<br /> RBP: ffff9d181cd5c280 R08: 0000000000000000 R09: 00000000ffff7fff<br /> R10: ffffa8d200604b68 R11: ffffffff907dcdc8 R12: 0000000000000000<br /> R13: ffff9d181cd5c660 R14: ffff9d1813a3f330 R15: 0000000000001000<br /> FS: 00007fa110184640(0000) GS:ffff9d1ef60c0000(0000) knlGS:0000000000000000<br /> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br /> CR2: 0000000020000000 CR3: 000000011f65e000 CR4: 00000000000006f0<br /> Call Trace:<br /> <br /> _raw_spin_unlock (kernel/locking/spinlock.c:186)<br /> inet_csk_reqsk_queue_add (net/ipv4/inet_connection_sock.c:1321)<br /> inet_csk_complete_hashdance (net/ipv4/inet_connection_sock.c:1358)<br /> tcp_check_req (net/ipv4/tcp_minisocks.c:868)<br /> tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2260)<br /> ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205)<br /> ip_local_deliver_finish (net/ipv4/ip_input.c:234)<br /> __netif_receive_skb_one_core (net/core/dev.c:5529)<br /> process_backlog (./include/linux/rcupdate.h:779)<br /> __napi_poll (net/core/dev.c:6533)<br /> net_rx_action (net/core/dev.c:6604)<br /> __do_softirq (./arch/x86/include/asm/jump_label.h:27)<br /> do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)<br /> <br /> <br /> __local_bh_enable_ip (kernel/softirq.c:381)<br /> __dev_queue_xmit (net/core/dev.c:4374)<br /> ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235)<br /> __ip_queue_xmit (net/ipv4/ip_output.c:535)<br /> __tcp_transmit_skb (net/ipv4/tcp_output.c:1462)<br /> tcp_rcv_synsent_state_process (net/ipv4/tcp_input.c:6469)<br /> tcp_rcv_state_process (net/ipv4/tcp_input.c:6657)<br /> tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929)<br /> __release_sock (./include/net/sock.h:1121 net/core/sock.c:2968)<br /> release_sock (net/core/sock.c:3536)<br /> inet_wait_for_connect (net/ipv4/af_inet.c:609)<br /> __inet_stream_connect (net/ipv4/af_inet.c:702)<br /> inet_stream_connect (net/ipv4/af_inet.c:748)<br /> __sys_connect (./include/linux/file.h:45 net/socket.c:2064)<br /> __x64_sys_connect (net/socket.c:2073 net/socket.c:2070 net/socket.c:2070)<br /> do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:82)<br /> entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)<br /> RIP: 0033:0x7fa10ff05a3d<br /> Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89<br /> c2 4d 89 c8 4c 8b 4c 24 08 0f 05 3d 01 f0 ff ff 73 01 c3 48 8b 0d ab a3 0e 00 f7 d8 64 89 01 48<br /> RSP: 002b:00007fa110183de8 EFLAGS: 00000202 ORIG_RAX: 000000000000002a<br /> RAX: ffffffffffffffda RBX: 0000000020000054 RCX: 00007fa10ff05a3d<br /> RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000003<br /> RBP: 00007fa110183e20 R08: 0000000000000000 R09: 0000000000000000<br /> R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa110184640<br /> R13: 0000000000000000 R14: 00007fa10fe8b060 R15: 00007fff73e23b20<br /> <br /> <br /> The issue triggering process is analyzed as follows:<br /> Thread A Thread B<br /> tcp_v4_rcv //receive ack TCP packet inet_shutdown<br /> tcp_check_req tcp_disconnect //disconnect sock<br /> ... tcp_set_state(sk, TCP_CLOSE)<br /> inet_csk_complete_hashdance ...<br /> inet_csk_reqsk_queue_add <br /> ---truncated---