CVE-2022-48926
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
How to fix
- linux linux_kernel4.9.304, 4.14.269, 4.19.232, 5.4.182, 5.10.103, 5.15.26, 5.16.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.6 ≤ v < 4.9.304, 4.10 ≤ v < 4.14.269, 4.15 ≤ v < 4.19.232, 4.20 ≤ v < 5.4.182, 5.5 ≤ v < 5.10.103, 5.11 ≤ v < 5.15.26, 5.16 ≤ v < 5.16.12 | 4.9.304, 4.14.269, 4.19.232, 5.4.182, 5.10.103, 5.15.26, 5.16.12 |
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