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authorRandall Stewart <rrs@FreeBSD.org>2021-10-26 17:17:58 +0000
committerRandall Stewart <rrs@FreeBSD.org>2021-10-26 17:17:58 +0000
commit12752978d32b440f7cc79a9dfb539b5bf42620af (patch)
tree4b0011906c27f1606153732a965aa9e9cbb2dcdf /cddl/usr.bin/zstream/Makefile
parentbb4c691299c5d699cea29e18fef96bda1cef13da (diff)
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tcp: The rack stack can incorrectly have an overflow when calculating a burst delay.HEADmain
If the congestion window is very large the fact that we multiply it by 1000 (for microseconds) can cause the uint32_t to overflow and we incorrectly calculate a very small divisor. This will then cause the burst timer to be very large when it should be 0. Instead lets make the three variables uint64_t and avoid the issue. Reviewed by: Michael Tuexen Sponsored by: Netflix Inc. Differential Revision: https://reviews.freebsd.org/D32668
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