Comment # 1 on bug 1191501 from Michal Suchanek

gdb $(which sbsiglist)
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Reading symbols from /usr/bin/sbsiglist...
Downloading separate debug info for /usr/bin/sbsiglist...
Reading symbols from
/home/hramrach/.cache/debuginfod_client/176b8cffc0efc498259fb9dbf07d95c59cef8d3f/debuginfo...
Downloading separate debug info for
/home/hramrach/.cache/debuginfod_client/176b8cffc0efc498259fb9dbf07d95c59cef8d3f/debuginfo...
(gdb) run --type x509 /boot/vmlinuz-5.14.5-1-default
Starting program: /usr/bin/sbsiglist --type x509 /boot/vmlinuz-5.14.5-1-default
Downloading separate debug info for /lib64/libuuid.so.1...

Program received signal SIGSEGV, Segmentation fault.
__strlen_sse2 () at ../sysdeps/x86_64/multiarch/strlen-vec.S:126
126    ../sysdeps/x86_64/multiarch/strlen-vec.S: Success.
(gdb) bt full
#0  __strlen_sse2 () at ../sysdeps/x86_64/multiarch/strlen-vec.S:126
No locals.
#1  0x00007ffff7fa3792 in uuid_parse (in=in@entry=0x0,
uu=uu@entry=0x7fffffffda10 "") at libuuid/src/parse.c:44
        len = <optimized out>
#2  0x00005555555553c9 in parse_guid (guid=0x555555559310, str=0x0) at
/usr/src/debug/sbsigntools-0.9.4-1.3.x86_64/src/sbsiglist.c:160
        uuid = '\000' <repeats 15 times>
        uuid = {<optimized out> <repeats 16 times>}
#3  main (argc=<optimized out>, argv=0x7fffffffdb98) at
/usr/src/debug/sbsigntools-0.9.4-1.3.x86_64/src/sbsiglist.c:254
        type_str = 0x7fffffffe06c "x509"
        owner_guid_str = 0x0
        ctx = <optimized out>
        c = <optimized out>
(gdb)