[Bug 256383] [bhyve] Assertion failed: (!err), function hda_set_corbctl, file /usr/src/usr.sbin/bhyve/pci_hda.c

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256383

--- Comment #3 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=f4d953bea74091874f019e3a2c4902dd013ee739

commit f4d953bea74091874f019e3a2c4902dd013ee739
Author:     Christos Margiolis <christos@FreeBSD.org>
AuthorDate: 2026-08-22 12:48:32 +0000
Commit:     Christos Margiolis <christos@FreeBSD.org>
CommitDate: 2026-08-22 12:48:32 +0000

    bhyve: Do not panic on invalid input in HDA emulation

    The emulated HDA controller passed values taken from guest registers and
    from guest memory straight into assert(), so a guest could abort bhyve
    with values the emulation did not expect. Reject them instead.

    In case the guest asked to start something and it failed, clear the
    corresponding run/enable bit.

    PR:             256379, 256381, 256382, 256383, 256384, 256385, 256386,
256498
    Sponsored by:   The FreeBSD Foundation
    MFC after:      2 weeks
    Reviewed by:    bnovkov, jhb
    Differential Revision:  https://reviews.freebsd.org/D59082

 usr.sbin/bhyve/pci_hda.c | 55 ++++++++++++++++++++++++++++++++----------------
 1 file changed, 37 insertions(+), 18 deletions(-)

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