Do not return out of bound pointers from intr_lookup_source().
This hardens the code against driver and upper level bugs causing invalid indexes used, e.g. on msi release. Reported by: gallatin Reviewed by: gallatin, hselasky Sponsored by: Mellanox Technologies MFC after: 1 week Differential revision: https://reviews.freebsd.org/D14470
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=329864
@ -178,6 +178,8 @@ struct intsrc *
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intr_lookup_source(int vector)
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{
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if (vector < 0 || vector >= nitems(interrupt_sources))
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return (NULL);
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return (interrupt_sources[vector]);
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}
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