In the Linux kernel, the following vulnerability has been resolved:
sfc: farch: fix TX queue lookup in TX flush done handling
Were starting from a TXQ instance number (qid), not a TXQ type, so efx_get_tx_queue() is inappropriate (and could return NULL, leading to panics).
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | 5.10.0 (including) | 5.10.36 (excluding) |
| Linux_kernel | Linux | 5.11.0 (including) | 5.11.20 (excluding) |
| Linux_kernel | Linux | 5.12.0 (including) | 5.12.3 (excluding) |