Comment 11 for bug 2003864

FWIW I was able to get the following backtrace from this crash:

(gdb) bt full
#0 s_fp_sub (a=0x7ffe3ea481a0, b=<optimized out>, c=0x7ffe3ea481a0) at src/addsub/s_fp_sub.c:30
        x = <optimized out>
        oldbused = <optimized out>
        oldused = 483582409
        t = <optimized out>
#1 0x00007fa0134db9e1 in fp_add (a=a@entry=0x7ffe3ea48640, b=b@entry=0x7ffe3ea481a0, c=c@entry=0x7ffe3ea481a0)
    at src/addsub/fp_add.c:36
        sa = 0
        sb = <optimized out>
#2 0x00007fa013f4fd9a in cli_decodesig (sig=<optimized out>, plen=16, e=..., n=...)
    at /build/clamav-BVgrQT/clamav-0.103.7+dfsg/libclamav/dsig.c:81
        i = <optimized out>
        slen = <optimized out>
        dec = <optimized out>
        plain = <optimized out>
        r = {dp = {20, 0 <repeats 71 times>}, used = 0, sign = 0}
        p = {dp = {7523094288207667809, 8101815670912281193, 8680537053616894577, 5063528411713075833,
            5642249794417674311, 6220971177122287695, 3689065128513853527, 3398873257388422452,
            14252546126433011493, 3628442678755211665, 2712605966946181364, 15277839593839420578,
            8694802841658813312, 5686060832697987328, 12525307746306663233, 3694540437919755632,
            16682102428094490919, 5631266801228481616, 14061618276812491434, 12197667988407176409,
            11079511681014219552, 3404728260627231669, 13043412223414144931, 8832037575717677253,
            6256736375726068327, 1492754453746096941, 2099850458381573509, 9306592184907088834,
            6237175487325309377, 10120151704950850987, 11851618273230141658, 11300675668428630678,
            17403472256060924040, 689431326608835423, 13397809209459187972, 16470382282525004697,
            4147042843502184282, 3335726350839652177, 17704539718282564709, 9328568386471887118,
            3029035003742963202, 3721060635362210435, 15422113546084857351, 5242631485635193648,
            5585345812499149634, 11028124888168443482, 12505072684500331840, 6166804767040247584,
            8327969952893387040, 12531736269459262785, 3930243339632379563, 200911044503768884,
            6073254765277986521, 9023911194406650026, 17641743940052621905, 6378363933382259647,
            4892725150097842880, 1681410646275668659, 7878974849415667176, 11790566601723893973,
            8719326998705976687, 7181653255783712, 2973234752302277065, 14834633410307321860,
            8450598079591262979, 11835167384365632637, 12126364641900763477, 3130395059942365217,
            3068322677788637080, 12426936100189987562, 4784747591849508306, 13164285774797318797},
          used = 449974006, sign = -2091867690}
        c = {dp = {18446744073709551596, 18446744073709551615 <repeats 71 times>}, used = -1, sign = -1}
#3 0x0000000000000000 in ?? ()
No symbol table info available.