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[bug #56555] I can make grotty core dump with 5 bytes of input


From: G. Branden Robinson
Subject: [bug #56555] I can make grotty core dump with 5 bytes of input
Date: Wed, 26 Jun 2019 12:23:23 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 PureBrowser/60.7.1

Update of bug #56555 (project groff):

                Category:         Device - others => Device grops           

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Follow-up Comment #2:


Core was generated by `grops'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000556ff8db032a in font::get_code (this=this@entry=0x1, g=g@entry=0x0)
at ../src/libs/libgroff/font.cpp:547
547       int idx = glyph_to_index(g);
##(gdb) bt
#0  0x0000556ff8db032a in font::get_code (this=this@entry=0x1, g=g@entry=0x0)
at ../src/libs/libgroff/font.cpp:547
#1  0x0000556ff8da5bd7 in ps_printer::set_subencoding
(this=this@entry=0x556ffa8f6150, f=f@entry=0x1, g=0x0, 
    codep=codep@entry=0x7fff0563101f "") at ../src/devices/grops/ps.cpp:660
#2  0x0000556ff8da7532 in ps_printer::set_char (this=0x556ffa8f6150,
g=<optimized out>, f=0x1, env=0x556ffa8ec9e0, w=0)
    at ../src/devices/grops/ps.cpp:693
#3  0x0000556ff8dadebc in printer::set_ascii_char (this=0x556ffa8f6150,
c=<optimized out>, env=0x556ffa8ec9e0, 
    widthp=widthp@entry=0x7fff056310c0) at
../src/libs/libdriver/printer.cpp:181
#4  0x0000556ff8dad2b3 in do_file (filename=filename@entry=0x556ff8db9b2a "-")
at ../src/libs/libdriver/input.cpp:1781
#5  0x0000556ff8da3a9a in main (argc=1, argv=0x7fff05631258) at
../src/devices/grops/ps.cpp:1861


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  <https://savannah.gnu.org/bugs/?56555>

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