mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-08-28 06:23:42 -04:00
7445aaa9fe
Replace the manual ND option parsing loop in br_nd_send() with ndisc_parse_options(), which provides proper validation and avoids the class of bugs that were fixed by commit53fc685243("bridge: Avoid infinite loop when suppressing NS messages with invalid options") and commit850837965a("bridge: br_nd_send: validate ND option lengths"). Use ndisc_opt_addr_data() to extract the source link-layer address from the parsed options, which correctly validates the option length for the underlying device type. Export ndisc_parse_options() so that it can be resolved from the bridge when it is built as a module (CONFIG_BRIDGE=m); otherwise modpost fails with an undefined symbol. Reviewed-by: Petr Machata <petrm@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Danielle Ratson <danieller@nvidia.com> Link: https://patch.msgid.link/20260803112505.613873-6-danieller@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>