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Red Hat: CVE-2024-27403: kernel: netfilter: nft_flow_offload: reset dst in route object after setting up flow (Multiple Advisories)

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Red Hat: CVE-2024-27403: kernel: netfilter: nft_flow_offload: reset dst in route object after setting up flow (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
05/17/2024
Created
06/28/2024
Added
06/27/2024
Modified
06/27/2024

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_flow_offload: reset dst in route object after setting up flow dst is transferred to the flow object, route object does not own it anymore. Reset dst in route object, otherwise if flow_offload_add() fails, error path releases dst twice, leading to a refcount underflow.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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