This is a note to let you know that I've just added the patch titled
xhci: dbc: Fix memory leak in xhci_alloc_dbc()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xhci-dbc-fix-memory-leak-in-xhci_alloc_dbc.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d591b32e519603524a35b172156db71df9116902 Mon Sep 17 00:00:00 2001
From: Rafael Mendonca <rafaelmendsr@xxxxxxxxx>
Date: Wed, 21 Sep 2022 15:34:46 +0300
Subject: xhci: dbc: Fix memory leak in xhci_alloc_dbc()
From: Rafael Mendonca <rafaelmendsr@xxxxxxxxx>
commit d591b32e519603524a35b172156db71df9116902 upstream.
If DbC is already in use, then the allocated memory for the xhci_dbc struct
doesn't get freed before returning NULL, which leads to a memleak.
Fixes: 534675942e90 ("xhci: dbc: refactor xhci_dbc_init()")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Rafael Mendonca <rafaelmendsr@xxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220921123450.671459-3-mathias.nyman@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-dbgcap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -988,7 +988,7 @@ xhci_alloc_dbc(struct device *dev, void
dbc->driver = driver;
if (readl(&dbc->regs->control) & DBC_CTRL_DBC_ENABLE)
- return NULL;
+ goto err;
INIT_DELAYED_WORK(&dbc->event_work, xhci_dbc_handle_events);
spin_lock_init(&dbc->lock);
Patches currently in stable-queue which might be from rafaelmendsr@xxxxxxxxx are
queue-5.15/xhci-dbc-fix-memory-leak-in-xhci_alloc_dbc.patch
