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Change History

In the Linux kernel, the following vulnerability has been resolved:

usb: xhci: Add error handling in xhci_map_urb_for_dma

Currently xhci_map_urb_for_dma() creates a temporary buffer and copies
the SG list to the new linear buffer. But if the kzalloc_node() fails,
then the following sg_pcopy_to_buffer() can lead to crash since it
tries to memcpy to NULL pointer.

So return -ENOMEM if kzalloc returns null pointer.

kernel.org https://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5dd [No types assigned]

kernel.org https://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4 [No types assigned]

kernel.org https://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757 [No types assigned]

kernel.org https://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304d [No types assigned]

kernel.org https://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442ea [No types assigned]

kernel.org https://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052 [No types assigned]