CVE-2024-46717
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/09/2024
Last modified:
20/09/2024
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
net/mlx5e: SHAMPO, Fix incorrect page release<br />
<br />
Under the following conditions:<br />
1) No skb created yet<br />
2) header_size == 0 (no SHAMPO header)<br />
3) header_index + 1 % MLX5E_SHAMPO_WQ_HEADER_PER_PAGE == 0 (this is the<br />
last page fragment of a SHAMPO header page)<br />
<br />
a new skb is formed with a page that is NOT a SHAMPO header page (it<br />
is a regular data page). Further down in the same function<br />
(mlx5e_handle_rx_cqe_mpwrq_shampo()), a SHAMPO header page from<br />
header_index is released. This is wrong and it leads to SHAMPO header<br />
pages being released more than once.