Description of problem:
I'm not sure if this is really a GCC issue, but I believe so.

Version-Release number of selected component (if applicable):
gcc-10.2.1-1.fc33
annobin-9.27-1.fc33

How reproducible:
Try to rebuild dsniff-2.4-0.33.b1.fc33 for Fedora 33 (while it works for Fedora 32 as expected).

Actual results:
./ssh.c:165:9: internal compiler error: Segmentation fault

Expected results:
Working rebuild.

Additional info:
[...]
./ssh.c: In function 'SSH_accept':
./ssh.c:252:9: warning: passing argument 1 of 'put_bn' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  252 |  put_bn(servkey_e, &p);    /* servkey exponent */
      |         ^~~~~~~~~
./ssh.c:92:16: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
   92 | put_bn(BIGNUM *bn, u_char **pp)
      |        ~~~~~~~~^~
./ssh.c:253:9: warning: passing argument 1 of 'put_bn' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  253 |  put_bn(servkey_n, &p);    /* servkey modulus */
      |         ^~~~~~~~~
./ssh.c:92:16: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
   92 | put_bn(BIGNUM *bn, u_char **pp)
      |        ~~~~~~~~^~
./ssh.c:261:9: warning: passing argument 1 of 'put_bn' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  261 |  put_bn(hostkey_e, &p);    /* hostkey exponent */
      |         ^~~~~~~~~
./ssh.c:92:16: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
   92 | put_bn(BIGNUM *bn, u_char **pp)
      |        ~~~~~~~~^~
./ssh.c:262:9: warning: passing argument 1 of 'put_bn' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  262 |  put_bn(hostkey_n, &p);    /* hostkey modulus */
      |         ^~~~~~~~~
./ssh.c:92:16: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
   92 | put_bn(BIGNUM *bn, u_char **pp)
      |        ~~~~~~~~^~
./ssh.c:342:34: warning: passing argument 2 of 'ssh_session_id' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  342 |  if ((p = ssh_session_id(cookie, hostkey_n,
      |                                  ^~~~~~~~~
./ssh.c:122:40: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
  122 | ssh_session_id(u_char *cookie, BIGNUM *hostkey_n, BIGNUM *servkey_n)
      |                                ~~~~~~~~^~~~~~~~~
./ssh.c:343:5: warning: passing argument 3 of 'ssh_session_id' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  343 |     servkey_n)) == NULL) {
      |     ^~~~~~~~~
./ssh.c:122:59: note: expected 'BIGNUM *' {aka 'struct bignum_st *'} but argument is of type 'const BIGNUM *' {aka 'const struct bignum_st *'}
  122 | ssh_session_id(u_char *cookie, BIGNUM *hostkey_n, BIGNUM *servkey_n)
      |                                                   ~~~~~~~~^~~~~~~~~
*** WARNING *** there are active plugins, do not report this as a bug unless you can reproduce it without enabling any plugins.
Event                            | Plugins
PLUGIN_FINISH_UNIT               | annobin: Generate final annotations
PLUGIN_START_UNIT                | annobin: Generate global annotations
PLUGIN_ALL_PASSES_START          | annobin: Generate per-function annotations
PLUGIN_ALL_PASSES_END            | annobin: Register per-function end symbol
during RTL pass: expand
./ssh.c: In function 'SSH_send':
./ssh.c:165:9: internal compiler error: Segmentation fault
  165 |   res = (f) (fd, s + pos, n - pos);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
The bug is not reproducible, so it is likely a hardware or OS problem.
make: *** [Makefile:76: ssh.o] Error 1