package/oniguruma: fix CVE-2020-26159

Fix CVE-2020-26159: In Oniguruma 6.9.5_rev1, an attacker able to supply
a regular expression for compilation may be able to overflow a buffer by
one byte in concat_opt_exact_str in src/regcomp.c.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2 files changed