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CVE-2024-26964

usb: xhci: Add error handling in xhci_map_urb_for_dma

EPSS 0.2%
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.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5ddhttps://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4https://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757https://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304dhttps://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442eahttps://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052