[Bug 268092] ixgbe: if_ixv driver have mismatched Rx buffer size and rx_mbuf_sz

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268092

--- Comment #1 from [email protected] ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=cdbe3de5383706da0f6d3c29f1ec2dcfed366bf1

commit cdbe3de5383706da0f6d3c29f1ec2dcfed366bf1
Author:     Kevin Bowling <[email protected]>
AuthorDate: 2024-10-26 21:34:30 +0000
Commit:     Kevin Bowling <[email protected]>
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 <[email protected]>
    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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