CVE-2024-26614

In the Linux kernel, the following vulnerability has been resolved:

tcp: make sure init the accept_queue's spinlocks once

When I run syz's reproduction C program locally, it causes the following issue: pvqspinlock: lock 0xffff9d181cd5c660 has corrupted value 0x0! WARNING: CPU: 19 PID: 21160 at pvqueuedspinunlockslowpath (kernel/locking/qspinlockparavirt.h:508) Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:pvqueuedspinunlockslowpath (kernel/locking/qspinlockparavirt.h:508) 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 30 20 ce 8f e8 ad 56 42 ff <0f> 0b c3 cc cc cc cc 0f 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffa8d200604cb8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff9d1ef60e0908 RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9d1ef60e0900 RBP: ffff9d181cd5c280 R08: 0000000000000000 R09: 00000000ffff7fff R10: ffffa8d200604b68 R11: ffffffff907dcdc8 R12: 0000000000000000 R13: ffff9d181cd5c660 R14: ffff9d1813a3f330 R15: 0000000000001000 FS: 00007fa110184640(0000) GS:ffff9d1ef60c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000011f65e000 CR4: 00000000000006f0 Call Trace: <IRQ> rawspinunlock (kernel/locking/spinlock.c:186) inetcskreqskqueueadd (net/ipv4/inetconnectionsock.c:1321) inetcskcompletehashdance (net/ipv4/inetconnectionsock.c:1358) tcpcheckreq (net/ipv4/tcpminisocks.c:868) tcpv4rcv (net/ipv4/tcpipv4.c:2260) ipprotocoldeliverrcu (net/ipv4/ipinput.c:205) iplocaldeliverfinish (net/ipv4/ipinput.c:234) _netifreceiveskbonecore (net/core/dev.c:5529) processbacklog (./include/linux/rcupdate.h:779) _napipoll (net/core/dev.c:6533) netrxaction (net/core/dev.c:6604) _dosoftirq (./arch/x86/include/asm/jumplabel.h:27) dosoftirq (kernel/softirq.c:454 kernel/softirq.c:441) </IRQ> <TASK> _localbhenableip (kernel/softirq.c:381) _devqueuexmit (net/core/dev.c:4374) ipfinishoutput2 (./include/net/neighbour.h:540 net/ipv4/ipoutput.c:235) _ipqueuexmit (net/ipv4/ipoutput.c:535) _tcptransmitskb (net/ipv4/tcpoutput.c:1462) tcprcvsynsentstateprocess (net/ipv4/tcpinput.c:6469) tcprcvstateprocess (net/ipv4/tcpinput.c:6657) tcpv4dorcv (net/ipv4/tcpipv4.c:1929) _releasesock (./include/net/sock.h:1121 net/core/sock.c:2968) releasesock (net/core/sock.c:3536) inetwaitforconnect (net/ipv4/afinet.c:609) _inetstreamconnect (net/ipv4/afinet.c:702) inetstreamconnect (net/ipv4/afinet.c:748) _sysconnect (./include/linux/file.h:45 net/socket.c:2064) _x64sysconnect (net/socket.c:2073 net/socket.c:2070 net/socket.c:2070) dosyscall64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:82) entrySYSCALL64afterhwframe (arch/x86/entry/entry64.S:129) RIP: 0033:0x7fa10ff05a3d 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 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ab a3 0e 00 f7 d8 64 89 01 48 RSP: 002b:00007fa110183de8 EFLAGS: 00000202 ORIGRAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000020000054 RCX: 00007fa10ff05a3d RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007fa110183e20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa110184640 R13: 0000000000000000 R14: 00007fa10fe8b060 R15: 00007fff73e23b20 </TASK>

The issue triggering process is analyzed as follows: Thread A Thread B tcpv4rcv //receive ack TCP packet inetshutdown tcpcheckreq tcpdisconnect //disconnect sock ... tcpsetstate(sk, TCPCLOSE) inetcskcompletehashdance ... inetcskreqskqueueadd
---truncated---