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bhyve: improve input validation in pci_xhci

Description

bhyve: improve input validation in pci_xhci

Several functions did not validate the slot index resulting in OOB read
on the heap of the slot device structure which could lead to arbitrary
reads/writes and potentially code execution.

Reported by: Synacktiv
Reviewed by: markj (earlier), jhb
Security: CVE-2024-41721
Security: HYP-02
Sponsored by: The Alpha-Omega Project
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D45996

(cherry picked from commit e72d86ad9c62c8054d7977a71f08e68ef755c132)

Details

Provenance
khorben_defora.orgAuthored on Jul 17 2024, 3:04 PM
emasteCommitted on Thu, Sep 19, 12:36 PM
Reviewer
markj
Differential Revision
Restricted Differential Revision
Parents
rG79c34d704f31: if_ovpn: declare our dependency on the crypto module
Branches
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Tags
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