Olivier Cochard
e492ad08fc
Commit f34aca55ad ("netlink/route: provide pre-2.6.19 Linux compat shim",
2024-06) fixed the partial fix for net/bird2 on the netlink path by mapping the
legacy 8-bit struct rtmsg::rtm_table field onto the modern 32-bit RTA_TABLE
attribute when the latter is absent.
That fix, however, was only applied to rtnl_handle_newroute. The two sibling
handlers: rtnl_handle_delroute and rtnl_handle_getroute were left looking at
attrs.rta_table directly. They are reachable from exactly the same client
(bird, in its netlink scan path), so any FIB number that fits in 8 bits
silently maps to RT_TABLE_UNSPEC in those handlers.
Reviewed by: melifaro (previous version)
Approved by: emaste
MFC after: 1 week
Sponsored by: Netflix
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