GNU gdb (Debian 12.1-2) 12.1
Copyright (C) 2022 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ssh...
Reading symbols from
/usr/lib/debug/.build-id/2a/f97f1bdaee7cdffdc6275b9e837796ba8c0d30.debug...
(gdb) r
Starting program: /usr/bin/ssh-p7386 localhost
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
double free or corruption (!prev)
Program received signal SIGABRT, Aborted.
__GI_raise(sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
49 ../sysdeps/unix/sysv/linux/raise.c: File o directory non esistente.
(gdb) br
Breakpoint 1 at 0x7ffff785f8a1: file ../sysdeps/unix/sysv/linux/raise.c,
line 49.
(gdb) bt
#0 __GI_raise(sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49
#1 0x00007ffff7849546in __GI_abort() at abort.c:79
#2 0x00007ffff78a0eb8in __libc_message(action=action@entry=do_abort,
fmt=fmt@entry=0x7ffff79bea78 "%s\n") at ../sysdeps/posix/libc_fatal.c:155
#3 0x00007ffff78a891ain malloc_printerr(
str=str@entry=0x7ffff79c0fa0 "double free or corruption (!prev)") at
malloc.c:5628
#4 0x00007ffff78aa1acin _int_free(av=0x7ffff79f5ba0 <main_arena>,
p=0x5555556b8350,
have_lock=<optimized out>) at malloc.c:4550
#5 0x00007ffff78ad9b4in __GI___libc_free(mem=<optimized out>) at
malloc.c:3309
#6 0x00007ffff7b2bd2cin ??() from /usr/lib/x86_64-linux-gnu/libcrypto.so.3
#7 0x00007ffff7b1858ein BN_mod_exp_mont_consttime_x2() from
/usr/lib/x86_64-linux-gnu/libcrypto.so.3
#8 0x00007ffff7c77b6din ??() from /usr/lib/x86_64-linux-gnu/libcrypto.so.3
#9 0x00007ffff7c79010in ??() from /usr/lib/x86_64-linux-gnu/libcrypto.so.3
#10 0x00007ffff7c7d0d1in RSA_sign() from
/usr/lib/x86_64-linux-gnu/libcrypto.so.3
#11 0x00005555555d6ee0in ssh_rsa_sign(key=key@entry=0x5555556c89e0,
sigp=sigp@entry=0x7fffffffc3c0,
lenp=lenp@entry=0x7fffffffc3c8, data=data@entry=0x5555556b6e70 "",
datalen=<optimized out>,
alg_ident=alg_ident@entry=0x5555556b2da0 "rsa-sha2-512") at
../../ssh-rsa.c:206
#12 0x000055555559a65ein sshkey_sign(key=key@entry=0x5555556c89e0,
sigp=sigp@entry=0x7fffffffc3c0,
lenp=lenp@entry=0x7fffffffc3c8, data=data@entry=0x5555556b6e70 "",
datalen=datalen@entry=542,
alg=alg@entry=0x5555556b2da0 "rsa-sha2-512", sk_provider=0x5555556a7770
"internal", sk_pin=0x0,
compat=67108864) at ../../sshkey.c:2787
#13 0x00005555555806acin identity_sign(alg=0x5555556b2da0
"rsa-sha2-512", compat=67108864,
datalen=542, data=0x5555556b6e70 "", lenp=0x7fffffffc3c8,
sigp=0x7fffffffc3c0, id=0x5555556bb450)
at ../../sshconnect2.c:1432
#14 sign_and_send_pubkey(ssh=ssh@entry=0x5555556a4ad0,
id=id@entry=0x5555556bb450)
at ../../sshconnect2.c:1602
#15 0x0000555555583752in input_userauth_pk_ok(type=<optimized out>,
seq=<optimized out>,
ssh=0x5555556a4ad0) at ../../sshconnect2.c:830
#16 0x00005555555c95c6in ssh_dispatch_run(ssh=ssh@entry=0x5555556a4ad0,
mode=mode@entry=0,
done=done@entry=0x7fffffffc578) at ../../dispatch.c:113
#17 0x00005555555c9719in
ssh_dispatch_run_fatal(ssh=ssh@entry=0x5555556a4ad0, mode=mode@entry=0,
done=done@entry=0x7fffffffc578) at ../../dispatch.c:133
--Type <RET> for more, q to quit, c to continue without paging--
#18 0x0000555555582906in ssh_userauth2(ssh=ssh@entry=0x5555556a4ad0,
local_user=local_user@entry=0x5555556a8850 "root",
server_user=server_user@entry=0x5555556a8890 "root",
host=host@entry=0x5555556b2390 "localhost",
sensitive=sensitive@entry=0x55555565c390 <sensitive_data>) at
../../sshconnect2.c:557
#19 0x000055555557c267in ssh_login(ssh=0x5555556a4ad0,
sensitive=sensitive@entry=0x55555565c390 <sensitive_data>,
orighost=<optimized out>,
hostaddr=hostaddr@entry=0x55555565c3a0 <hostaddr>, port=<optimized out>,
pw=<optimized out>,
timeout_ms=-1000, cinfo=0x5555556ac190) at ../../sshconnect.c:1573
#20 0x0000555555561dfain main(ac=<optimized out>, av=<optimized out>) at
../../ssh.c:1661
