CVE-2024-26964

usb: xhci: Add error handling in xhci_map_urb_for_dma

EPSS 0.2%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

01 May 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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

References

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