bug#48401: 25.3; emacs27 crashes

[Robert Pluim]

>>>>> On Mon, 17 May 2021 22:14:19 +0300, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Aloe <aloe@aloe-associacio.org>
    >> Cc: 48401@debbugs.gnu.org
    >> Date: Mon, 17 May 2021 21:05:53 +0200
    >> 
    >> Thread 1 (Thread 0x7ffff7fb3a00 (LWP 24611)):
    >> #0  __GI___pthread_mutex_lock (mutex=0x20) at 
../nptl/pthread_mutex_lock.c:66
    >> #1  0x00007ffff3d663ec in ?? () from 
/usr/lib/x86_64-linux-gnu/libgnutls.so.28
    >> #2  0x00007ffff3df6c67 in ?? () from 
/usr/lib/x86_64-linux-gnu/libgnutls.so.28
    >> #3  0x000000000056c795 in extract_data_from_object (spec=<optimized 
out>, 
    >> spec@entry=0x280ac63, start_byte=start_byte@entry=0x7fffffffa598, 
    >> end_byte=end_byte@entry=0x7fffffffa5a0) at fns.c:5290
    >> #4  0x00000000005a06d1 in gnutls_symmetric (encrypting=<optimized out>, 
    >> ---Type <return> to continue, or q <return> to quit---
    >> cipher=<optimized out>, key=0x280ac13, iv=0x280ac63, input=0x280ac03, 
    >> aead_auth=<optimized out>) at gnutls.c:2380
    >> #5  0x000000000055e71b in Ffuncall (nargs=5, 
args=args@entry=0x7fffffffa698)
    >> at eval.c:2795

    Eli> Looks like a problem in GnuTLS.  Which version of GnuTLS do you have
    Eli> installed?  Can you upgrade to a newer version?

FWIW the code in extract_data_from_object is quite different in
master, so itʼs possible it works better there.

Robert
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