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Is the co-pilot itself performance-sensitive?

Is the co-pilot itself performance-sensitive?

Posted Sep 23, 2024 9:12 UTC (Mon) by rweikusat2 (subscriber, #117920)
In reply to: Is the co-pilot itself performance-sensitive? by viro
Parent article: pcp: pmcd network daemon review (SUSE Security Team Blog)

It would. The best way to express this without errors is probably

if (vindex < 0 || vindex >= pdulen / sizeof(*pdubuf)) {

as this uses the actual type of the array element, whatever it is.

to post comments

Is the co-pilot itself performance-sensitive?

Posted Sep 23, 2024 9:25 UTC (Mon) by rweikusat2 (subscriber, #117920) [Link]

Additional remark: Assuming that pdubuf if either an array of __pmPDU or a pointer to __pmPDU, the expressions

pdubuf[0]

and

*pdubuf

are semantically identical.


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