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32 lines
1.2 KiB
Bash
Executable File
32 lines
1.2 KiB
Bash
Executable File
#! /bin/sh
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# Evoke a segfault in a hard-to-reach code path of kwset.c.
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# This bug affected grep versions 2.19 through 2.21.
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#
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# Copyright (C) 2015-2026 Free Software Foundation, Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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fail=0
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# This test case chooses a haystack of size 260,000, since prodding
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# with gdb showed a reallocation slightly larger than that in fillbuf.
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# To reach the buggy code, the needle must have length < 1/11 that of
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# the haystack, and 10,000 is a nice round number that fits the bill.
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printf '%0260000dXy\n' 0 | returns_ 1 grep -F $(printf %010000dy 0) \
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|| fail=1
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Exit $fail
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