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![]() Commit 4231d47e6fe69f061f96c98c30eaf9fb4c14b96d(net/usbnet: avoid recursive locking in usbnet_stop()) fixes the recursive locking problem by releasing the skb queue lock, but it makes usb_unlink_urb racing with defer_bh, and the URB to being unlinked may be freed before or during calling usb_unlink_urb, so use-after-free problem may be triggerd inside usb_unlink_urb. The patch fixes the use-after-free problem by increasing URB reference count with skb queue lock held before calling usb_unlink_urb, so the URB won't be freed until return from usb_unlink_urb. Cc: stable@kernel.org Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
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.. | ||
asix.c | ||
catc.c | ||
cdc-phonet.c | ||
cdc_eem.c | ||
cdc_ether.c | ||
cdc_ncm.c | ||
cdc_subset.c | ||
cx82310_eth.c | ||
dm9601.c | ||
gl620a.c | ||
hso.c | ||
int51x1.c | ||
ipheth.c | ||
kalmia.c | ||
kaweth.c | ||
Kconfig | ||
lg-vl600.c | ||
Makefile | ||
mcs7830.c | ||
net1080.c | ||
pegasus.c | ||
pegasus.h | ||
plusb.c | ||
qmi_wwan.c | ||
rndis_host.c | ||
rtl8150.c | ||
sierra_net.c | ||
smsc75xx.c | ||
smsc75xx.h | ||
smsc95xx.c | ||
smsc95xx.h | ||
usbnet.c | ||
zaurus.c |