From: Adrian Wowk <dev@adrianwowk.com>
To: valentina.manea.m@gmail.com, shuah@kernel.org
Cc: i@zenithal.me, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Adrian Wowk <dev@adrianwowk.com>
Subject: [PATCH 0/2] usbip: vhci_hcd: fix NULL deref and NR_HCS upper bound
Date: Mon, 13 Apr 2026 20:00:48 -0500 [thread overview]
Message-ID: <20260414010050.158064-1-dev@adrianwowk.com> (raw)
These two patches fix a NULL pointer dereference in vhci_sysfs.c
triggered when a VHCI host controller fails to probe, and tighten
the Kconfig upper bound for USBIP_VHCI_NR_HCS to reflect the real
maximum imposed by USB_MAXBUS.
Tested on Ubuntu 6.8.0-110-generic (6.8.12) on a Dell PowerEdge R640,
issue is reproducible with CONFIG_USBIP_VHCI_NR_HCS > 32 or potentially
lower if there is already other USB hardware connected.
Adrian Wowk (2):
usbip: vhci_hcd: fix NULL deref in status_show_vhci
usbip: vhci_hcd: reduce CONFIG_USBIP_VHCI_NR_HCS upper bound to 32
drivers/usb/usbip/Kconfig | 2 +-
drivers/usb/usbip/vhci_sysfs.c | 52 +++++++++++++++++++---------------
2 files changed, 30 insertions(+), 24 deletions(-)
--
2.53.0
next reply other threads:[~2026-04-14 1:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-14 1:00 Adrian Wowk [this message]
2026-04-14 1:00 ` [PATCH 1/2] usbip: vhci_hcd: fix NULL deref in status_show_vhci Adrian Wowk
2026-04-14 1:00 ` [PATCH 2/2] usbip: vhci_hcd: reduce CONFIG_USBIP_VHCI_NR_HCS upper bound to 32 Adrian Wowk
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