CVE-2024-47708

netkit: Assign missing bpf_net_context

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11 patch
https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19 patch

Frequently Asked Questions

What is the severity of CVE-2024-47708?
CVE-2024-47708 has been scored as a medium severity vulnerability.
How to fix CVE-2024-47708?
To fix CVE-2024-47708, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-47708 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-47708 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-47708?
CVE-2024-47708 affects Linux Linux, Linux Linux.
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