Tracker / CVE-2022-50034
CVE-2022-50034
High 7.8
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ use after free ... } cdns3_gadget_ep_free_request() free the space pointed by priv_req, but priv_req is used in the following list_del_init(). This patch move list_del_init() before cdns3_gadget_ep_free_request().
Affected products and versions
| linux | linux_kernel · 5.11 → 5.15.63 |
|---|---|
| linux | linux_kernel · 5.16 → 5.19.4 |
| linux | linux_kernel · 5.3 → 5.4.211 |
| linux | linux_kernel · 5.5 → 5.10.138 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.