[Bug 268092] ixgbe: if_ixv driver have mismatched Rx buffer size and rx_mbuf_sz
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Date: Sat, 26 Oct 2024 21:38:02 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268092
--- Comment #1 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:
URL:
https://cgit.FreeBSD.org/src/commit/?id=cdbe3de5383706da0f6d3c29f1ec2dcfed366bf1
commit cdbe3de5383706da0f6d3c29f1ec2dcfed366bf1
Author: Kevin Bowling <kbowling@FreeBSD.org>
AuthorDate: 2024-10-26 21:34:30 +0000
Commit: Kevin Bowling <kbowling@FreeBSD.org>
CommitDate: 2024-10-26 21:36:48 +0000
ixv: Dynamically size the receive packet size
If MTU of the if_ixv VF driver is configured between 1501 and 2030, and
if a peer box have bigger MTU and sends a packet bigger than MTU into
this guest, kernel could crash.
Dynamically calculate the receive packet size on rx_mbuf_sz as ix(4)
does.
PR: 268092
Reported by: Kumara Babu <nkumarababu@gmail.com>
MFC after: 3 days
Sponsored by: BBOX.io
sys/dev/ixgbe/if_ixv.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
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