Re: [PATCH net] mpls: fix NULL deref in mpls_valid_fib_dump_req() on CONFIG_INET=n
From: Jakub Kicinski <kuba@kernel.org>
Date: 2026-07-21 19:33:13
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On Sun, 12 Jul 2026 15:09:03 -0700 Xiang Mei wrote:
On CONFIG_INET=n, mpls_valid_fib_dump_req()'s local strict-check loop enters the RTA_OIF arm on the index alone and calls nla_get_u32(tb[i]). Since nlmsg_parse_deprecated_strict() leaves tb[i] NULL for any omitted attribute, a dump without RTA_OIF dereferences NULL and oopses.
Someone else already fixed this