panic: tcp_output
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*287780  50067      0           0  0x4000000    0  syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8257e290) at panic+0x177 sys/kern/subr_prf.c:198
tcp_output(ffff800000eaad38) at tcp_output+0x2cd2 sys/netinet/tcp_output.c:727
tcp_send(fffffd807217c3e8,fffffd806ae73c00,fffffd8068250000,fffffd8068e82b00) at tcp_send+0xc4 sys/netinet/tcp_usrreq.c:953
sosend(fffffd807217c3e8,fffffd8068250000,ffff80002ae91bf0,0,fffffd8068e82b00,0) at sosend+0x62a pru_send sys/sys/protosw.h:331 [inline]
sosend(fffffd807217c3e8,fffffd8068250000,ffff80002ae91bf0,0,fffffd8068e82b00,0) at sosend+0x62a sys/kern/uipc_socket.c:646
sendit(ffff80002962bce8,5,ffff80002ae91d70,0,ffff80002ae91e60) at sendit+0x65d sys/kern/uipc_syscalls.c:694
sys_sendmsg(ffff80002962bce8,ffff80002ae91e18,ffff80002ae91e60) at sys_sendmsg+0x198 sys/kern/uipc_syscalls.c:601
syscall(ffff80002ae91ee0) at syscall+0x4c3 mi_syscall sys/sys/syscall_mi.h:101 [inline]
syscall(ffff80002ae91ee0) at syscall+0x4c3 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x532561b9fc0, count: 6
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