Revision 5d9b70f7d52eb14bb37861c663bae44de9521c35 authored by Mathias Nyman on 08 December 2017, 16:10:05 UTC, committed by Greg Kroah-Hartman on 08 December 2017, 17:26:34 UTC
Avoid null pointer dereference if some function is walking through the devs array accessing members of a new virt_dev that is mid allocation. Add the virt_dev to xhci->devs[i] _after_ the virt_device and all its members are properly allocated. issue found by KASAN: null-ptr-deref in xhci_find_slot_id_by_port "Quick analysis suggests that xhci_alloc_virt_device() is not mutex protected. If so, there is a time frame where xhci->devs[slot_id] is set but not fully initialized. Specifically, xhci->devs[i]->udev can be NULL." Cc: stable <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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File | Mode | Size |
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arch | ||
block | ||
certs | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 31 bytes |
.gitattributes | -rw-r--r-- | 30 bytes |
.gitignore | -rw-r--r-- | 1.4 KB |
.mailmap | -rw-r--r-- | 8.8 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 96.2 KB |
Kbuild | -rw-r--r-- | 2.2 KB |
Kconfig | -rw-r--r-- | 287 bytes |
MAINTAINERS | -rw-r--r-- | 426.0 KB |
Makefile | -rw-r--r-- | 58.3 KB |
README | -rw-r--r-- | 722 bytes |
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