------------[ cut here ]------------ WARNING: CPU: 0 PID: 6424 at net/ipv4/inet_connection_sock.c:582 inet_csk_get_port+0x12e0/0x14f8 net/ipv4/inet_connection_sock.c:-1 Modules linked in: CPU: 0 PID: 6424 Comm: syz.3.395 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : inet_csk_get_port+0x12e0/0x14f8 net/ipv4/inet_connection_sock.c:-1 lr : inet_csk_get_port+0x12dc/0x14f8 net/ipv4/inet_connection_sock.c:582 sp : ffff800021877b20 x29: ffff800021877c20 x28: ffff0000d9d32100 x27: ffff0000ef2fc200 x26: dfff800000000000 x25: 0000000000004e20 x24: 0000000000000000 x23: 0000000000004e20 x22: ffff0000d712b7a8 x21: 1fffe0001ad268e6 x20: ffff0000d752b400 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082d92bc x15: ffff80000fd47238 x14: 0000000000000001 x13: 1fffe0001ad26884 x12: 0000000000080000 x11: 0000000000000603 x10: ffff800029d7f000 x9 : ffff8000104e16a8 x8 : 0000000000000604 x7 : ffff80000fd63124 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000002 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: inet_csk_get_port+0x12e0/0x14f8 net/ipv4/inet_connection_sock.c:-1 inet_csk_listen_start+0x104/0x2c4 net/ipv4/inet_connection_sock.c:1288 inet_dccp_listen+0x190/0x25c net/dccp/proto.c:948 __sys_listen+0x198/0x21c net/socket.c:1844 __do_sys_listen net/socket.c:1853 [inline] __se_sys_listen net/socket.c:1851 [inline] __arm64_sys_listen+0x5c/0x74 net/socket.c:1851 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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: 1451 hardirqs last enabled at (1450): [] __local_bh_enable_ip+0x1f8/0x37c kernel/softirq.c:426 hardirqs last disabled at (1451): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (1436): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (1436): [] lock_sock_nested+0xe0/0x130 net/core/sock.c:3503 softirqs last disabled at (1438): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (1438): [] inet_csk_get_port+0x1d8/0x14f8 net/ipv4/inet_connection_sock.c:530 ---[ end trace 0000000000000000 ]---