Description

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.

Classification

CVE ID: CVE-2024-26964

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.08% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5dd
https://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442ea
https://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4
https://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304d
https://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757
https://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052

Timeline