audk/MdePkg at b659b503fa7c43677ccab40d311dbab33366ee97 - audk

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History

Hao Wu b1d4b9651e MdePkg/BasePrintLib: Avoid reading content beyond the format string

https://bugzilla.tianocore.org/show_bug.cgi?id=567

In function BasePrintLibSPrintMarker(), when processing ASCII format
strings, if the format string walker pointer 'Format' is pointing at the
end of the format string (i.e. '\0'), the following expression:
*(Format + 1)
will read an undefined value.

Though this value won't affect the functionality, since it will be masked
by variable 'FormatMask':
(*(Format + 1) << 8)) & FormatMask
(FormatMask is 0xff for ASCII format string)

This commit adds additional logic to avoid reading undefined content.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

2017-06-01 08:46:31 +08:00

Include

MdePkg/SmmIoLib: Add header file.

2017-04-26 09:22:17 +08:00

Library

MdePkg/BasePrintLib: Avoid reading content beyond the format string

2017-06-01 08:46:31 +08:00

Contributions.txt

*/Contributions.txt: Update example email address

2015-02-03 17:29:14 +00:00

License.txt

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