CVE-2024-26964
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.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5ddPatch
- https://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4Patch
- https://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757Patch
- https://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304dPatch
- https://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442eaPatch
- https://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052Patch
- https://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5ddPatch
- https://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4Patch
- https://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757Patch
- https://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304dPatch
- https://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442eaPatch
- https://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.