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Differential D22859

oce: Tighten input validation for SIOCGI2C.
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Authored by markj on Dec 17 2019, 9:24 PM.
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delphij
ram
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rS355885: oce: Tighten input validation in the SIOCGI2C handler.
Summary

We need to ensure that we do not read past the end of
sfp_vpd_dump_buffer. Currently it is possible to read 8 bytes beyond
its end. Note that the offset and length are uint8_t's.

Reported by: Ilja Van Sprundel <ivansprundel@ioactive.com>
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

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rS FreeBSD src repository - subversion
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head/
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head/sys/dev/oce/oce_if.c

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