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CVE-2022-49092
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2025-02-26T07:00:46.530 · Last modified 2026-08-04T10:17:34.380

Summary

In the Linux kernel, the following vulnerability has been resolved: net: ipv4: fix route with nexthop object delete warning FRR folks have hit a kernel warning[1] while deleting routes[2] which is caused by trying to delete a route pointing to a nexthop id without specifying nhid but matching on an interface. That is, a route is found but we hit a warning while matching it. The warning is from fib_info_nh() in include/net/nexthop.h because we run it on a fib_info with nexthop object. The call chain is: inet_rtm_delroute -> fib_table_delete -> fib_nh_match (called with a nexthop fib_info and also with fc_oif set thus calling fib_info_nh on the fib_info and triggering the warning). The fix is to not do any matching in that branch if the fi has a nexthop object because those are managed se

Affected products

linux — linux_kernel

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.