Description
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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
6bbf87a131edd39040974f3843ff97e89310ebde to < e65d9b7147d7be3504893ca7dfb85286bda83d40affected6bbf87a131edd39040974f3843ff97e89310ebde to < 6d7ac60098b206d0472475b666cb09d556bec03daffected6bbf87a131edd39040974f3843ff97e89310ebde to < c3c1dbad3a2db32ecf371c97f2058491b8ba0f9aaffected6bbf87a131edd39040974f3843ff97e89310ebde to < 6fd50446e7c9a98b4bcf96815f5c9602a16ea472affected6bbf87a131edd39040974f3843ff97e89310ebde to < 7d602f30149a117eea260208b1661bc404c21dfdaffected
Linux Linux
Default version status: affected
5.4affected0 to < 5.4unaffected5.4.211 to ≤ 5.4.*unaffected5.10.138 to ≤ 5.10.*unaffected5.15.63 to ≤ 5.15.*unaffected5.19.4 to ≤ 5.19.*unaffected6.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40 ↗
- https://git.kernel.org/stable/c/6d7ac60098b206d0472475b666cb09d556bec03d ↗
- https://git.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a ↗
- https://git.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472 ↗
- https://git.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfd ↗