Riskcovery

CVE-2024-47708

netkit: Assign missing bpf_net_context

State
Published
Severity
Not scored
Published
Oct 21, 2024
Updated
May 11, 2026
Reserved
Sep 30, 2024

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 401cb7dae8130fd34eb84648e02ab4c506df7d5e to before 182c6fed8c7f62cddce0126ec1fc0da2b700fb11Affected
  • 401cb7dae8130fd34eb84648e02ab4c506df7d5e to before 157f29152b61ca41809dd7ead29f5733adeced19Affected
LinuxLinux
  • 6.11Affected
  • before 6.11Not affected
  • 6.11.2 through 6.11.*Not affected
  • 6.12 and laterNot affected

References

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