Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: netkit: Assign missing bpf_net_context During the introduction of struct bpf_net_context handling for XDP-redirect, the netkit driver has been missed, which also requires it because NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the per-CPU variables. Otherwise we see the following crash: BUG: kernel NULL pointer dereference, address: 0000000000000038 bpf_redirect() netkit_xmit() dev_hard_start_xmit() Set the bpf_net_context before invoking netkit_xmit() program within the netkit driver.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 401cb7dae8130fd34eb84648e02ab4c506df7d5e before 182c6fed8c7f62cddce0126ec1fc0da2b700fb11; affected 401cb7dae8130fd34eb84648e02ab4c506df7d5e before 157f29152b61ca41809dd7ead29f5733adeced19 |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.11.2 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11
- https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19
ADP enrichment
No English description supplied.
No references supplied.