CVE-2024-26600

CVE Details

Release Date:

2024-02-24

Description

In the Linux kernel, the following vulnerability has been resolved:\nphy: ti: phy-omap-usb2: Fix NULL pointer dereference for SRP\nIf the external phy working together with phy-omap-usb2 does not implement\nsend_srp(), we may still attempt to call it. This can happen on an idle\nEthernet gadget triggering a wakeup for example:\nconfigfs-gadget.g1 gadget.0: ECM Suspend\nconfigfs-gadget.g1 gadget.0: Port suspended. Triggering wakeup\n...\nUnable to handle kernel NULL pointer dereference at virtual address\n00000000 when execute\n...\nPC is at 0x0\nLR is at musb_gadget_wakeup+0x1d4/0x254 [musb_hdrc]\n...\nmusb_gadget_wakeup [musb_hdrc] from usb_gadget_wakeup+0x1c/0x3c [udc_core]\nusb_gadget_wakeup [udc_core] from eth_start_xmit+0x3b0/0x3d4 [u_ether]\neth_start_xmit [u_ether] from dev_hard_start_xmit+0x94/0x24c\ndev_hard_start_xmit from sch_direct_xmit+0x104/0x2e4\nsch_direct_xmit from __dev_queue_xmit+0x334/0xd88\n__dev_queue_xmit from arp_solicit+0xf0/0x268\narp_solicit from neigh_probe+0x54/0x7c\nneigh_probe from __neigh_event_send+0x22c/0x47c\n__neigh_event_send from neigh_resolve_output+0x14c/0x1c0\nneigh_resolve_output from ip_finish_output2+0x1c8/0x628\nip_finish_output2 from ip_send_skb+0x40/0xd8\nip_send_skb from udp_send_skb+0x124/0x340\nudp_send_skb from udp_sendmsg+0x780/0x984\nudp_sendmsg from __sys_sendto+0xd8/0x158\n__sys_sendto from ret_fast_syscall+0x0/0x58\nLet's fix the issue by checking for send_srp() and set_vbus() before\ncalling them. For USB peripheral only cases these both could be NULL.

See more information about CVE-2024-26600 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (kernel)	ELSA-2024-5363	2024-08-14