------------[ cut here ]------------ kernel BUG at net/phonet/socket.c:213! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5118 Comm: syz.3.209 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : pn_socket_autobind net/phonet/socket.c:213 [inline] pc : pn_socket_sendmsg+0x210/0x214 net/phonet/socket.c:422 lr : pn_socket_autobind net/phonet/socket.c:213 [inline] lr : pn_socket_sendmsg+0x210/0x214 net/phonet/socket.c:422 sp : ffff800021137a40 x29: ffff800021137aa0 x28: ffff700004226f64 x27: 1fffe0001c28fcc3 x26: dfff800000000000 x25: ffff700004226f48 x24: ffff800021137a60 x23: ffff0000e147e618 x22: 0000000000000000 x21: ffff0000d9f50c80 x20: ffff800021137be0 x19: 0000000000000020 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082dcf38 x15: 0000000000000002 x14: 0000000000000001 x13: 1fffe0001b3ea1a3 x12: 0000000000080000 x11: 0000000000000bf4 x10: ffff80002afe3000 x9 : ffff800011058050 x8 : 0000000000000bf5 x7 : ffff80000fe734d4 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff800021137880 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: pn_socket_autobind net/phonet/socket.c:213 [inline] pn_socket_sendmsg+0x210/0x214 net/phonet/socket.c:422 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x324/0x440 net/socket.c:2153 __do_sys_sendto net/socket.c:2165 [inline] __se_sys_sendto net/socket.c:2161 [inline] __arm64_sys_sendto+0xe4/0x104 net/socket.c:2161 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 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 Code: aa1603e0 97be68ce 17ffffc1 97be685c (d4210000) ---[ end trace 0000000000000000 ]---