ipv6: fix potential "struct net" leak in inet6_rtm_getaddr()

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[ Upstream commit 10bfd453da ]

It seems that if userspace provides a correct IFA_TARGET_NETNSID value
but no IFA_ADDRESS and IFA_LOCAL attributes, inet6_rtm_getaddr()
returns -EINVAL with an elevated "struct net" refcount.

Fixes: 6ecf4c37eb ("ipv6: enable IFA_TARGET_NETNSID for RTM_GETADDR")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Eric Dumazet 2024-02-22 12:17:47 +00:00 • committed by Greg Kroah-Hartman

parent 7985d73961

commit 1b0998fdd8

1 changed files with 4 additions and 3 deletions

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net/ipv6/addrconf.c

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