------------[ cut here ]------------
WARNING: CPU: 0 PID: 4511 at net/ipv4/inet_connection_sock.c:590 inet_csk_get_port+0x1208/0x1404 net/ipv4/inet_connection_sock.c:590
Modules linked in:
CPU: 0 PID: 4511 Comm: syz.3.20 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : inet_csk_get_port+0x1208/0x1404 net/ipv4/inet_connection_sock.c:590
lr : inet_csk_get_port+0x1208/0x1404 net/ipv4/inet_connection_sock.c:590
sp : ffff8000216c7b30
x29: ffff8000216c7c20 x28: ffff0000cce3a000 x27: dfff800000000000
x26: ffff0000d7124ba8 x25: 0000000000004e20 x24: dfff800000000000
x23: ffff80001c6db180 x22: ffff0000dc6b5080 x21: 1fffe0001aafd4de
x20: ffff0000d57ea6f0 x19: ffff0000d57ea6f8 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d3a08 x15: 0000000000000000
x14: 00000000ffff0000 x13: 1ffff00002a0a0b1 x12: 0000000000ff0100
x11: ff008000103d81b0 x10: 0000000000000000 x9 : ffff8000103d81b0
x8 : ffff0000d41db780 x7 : ffff80000fc6f814 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000002 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 inet_csk_get_port+0x1208/0x1404 net/ipv4/inet_connection_sock.c:590
 inet_csk_listen_start+0x104/0x2c4 net/ipv4/inet_connection_sock.c:1296
 inet_dccp_listen+0x194/0x260 net/dccp/proto.c:948
 __sys_listen+0x198/0x21c net/socket.c:1845
 __do_sys_listen net/socket.c:1854 [inline]
 __se_sys_listen net/socket.c:1852 [inline]
 __arm64_sys_listen+0x5c/0x74 net/socket.c:1852
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 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: 1817
hardirqs last  enabled at (1816): [<ffff8000081a95b4>] __local_bh_enable_ip+0x1f8/0x380 kernel/softirq.c:426
hardirqs last disabled at (1817): [<ffff8000118fa220>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (1802): [<ffff80000fc75874>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last  enabled at (1802): [<ffff80000fc75874>] lock_sock_nested+0xe0/0x130 net/core/sock.c:3503
softirqs last disabled at (1804): [<ffff8000103d7178>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (1804): [<ffff8000103d7178>] inet_csk_get_port+0x1d0/0x1404 net/ipv4/inet_connection_sock.c:538
---[ end trace 0000000000000000 ]---
loop3: detected capacity change from 0 to 32768