What’s Vulnerable › Vulnerabilities

CVE-2022-48926: usb: gadget: rndis: add spinlock for rndis response list

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-08-22 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: rndis: add spinlock for rndis response list There's no lock for rndis response list. It could cause list corruption if there're two different list_add at the same time like below. It's better to add in rndis_add_response / rndis_free_response / rndis_get_next_response to prevent any race condition on response list. [ 361.894299] [1: irq/191-dwc3:16979] list_add corruption. next->prev should be prev (ffffff80651764d0), but was ffffff883dc36f80. (next=ffffff80651764d0). [ 361.904380] [1: irq/191-dwc3:16979] Call trace: [ 361.904391] [1: irq/191-dwc3:16979] __list_add_valid+0x74/0x90 [ 361.904401] [1: irq/191-dwc3:16979] rndis_msg_parser+0x168/0x8c0 [ 361.904409] [1: irq/191-dwc3:16979] rndis_command_complete+0x24/0x84 [ 361.904417] [1: irq/191-dwc3:16979] usb_gadget_giveback_request+0x20/0xe4 [ 361.904426] [1: irq/191-dwc3:16979] dwc3_gadget_giveback+0x44/0x60 [ 361.904434] [1: irq/191-dwc3:16979] dwc3_ep0_complete_data+0x1e8/0x3a0 [ 361.904442] [1: irq/191-dwc3:16979] dwc3_ep0_interrupt+0x29c/0x3dc [ 361.904450] [1: irq/191-dwc3:16979] dwc3_process_event_entry+0x78/0x6cc [ 361.904457] [1: irq/191-dwc3:16979] dwc3_process_event_buf+0xa0/0x1ec [ 361.904465] [1: irq/191-dwc3:16979] dwc3_thread_interrupt+0x34/0x5c

Affected products

• Linux kernel: from 4.6 before 4.9.304; from 4.10 before 4.14.269; from 4.15 before 4.19.232; from 4.20 before 5.4.182; from 5.5 before 5.10.103; from 5.11 before 5.15.26 — fixed in 4.14.269, 4.19.232, 4.9.304, 5.10.103, 5.15.26, 5.16.12

How to fix

Upgrade to a fixed version: Linux kernel 4.14.269, 4.19.232, 4.9.304, 5.10.103. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/33222d1571d7ce8c1c75f6b488f38968fa93d2d9
• https://git.kernel.org/stable/c/4ce247af3f30078d5b97554f1ae6200a0222c15a
• https://git.kernel.org/stable/c/669c2b178956718407af5631ccbc61c24413f038
• https://git.kernel.org/stable/c/9ab652d41deab49848673c3dadb57ad338485376
• https://git.kernel.org/stable/c/9f5d8ba538ef81cd86ea587ca3f8c77e26bea405
• https://git.kernel.org/stable/c/9f688aadede6b862a0a898792b1a35421c93636f
• https://git.kernel.org/stable/c/aaaba1c86d04dac8e49bf508b492f81506257da3
• https://git.kernel.org/stable/c/da514063440b53a27309a4528b726f92c3cfe56f

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