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| author | Henry Ptasinski <hptasinski@google.com> | 2020-09-19 00:12:11 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-20 14:15:12 -0700 |
| commit | fe81d9f6182d1160e625894eecb3d7ff0222cac5 (patch) | |
| tree | 4ea97ca4097a651dc3e032b95363b44261f0375a /lib | |
| parent | b6e11785cf957f4f4dd7da7f5a1f41ca4f1ea913 (diff) | |
net: sctp: Fix IPv6 ancestor_size calc in sctp_copy_descendant
When calculating ancestor_size with IPv6 enabled, simply using
sizeof(struct ipv6_pinfo) doesn't account for extra bytes needed for
alignment in the struct sctp6_sock. On x86, there aren't any extra
bytes, but on ARM the ipv6_pinfo structure is aligned on an 8-byte
boundary so there were 4 pad bytes that were omitted from the
ancestor_size calculation. This would lead to corruption of the
pd_lobby pointers, causing an oops when trying to free the sctp
structure on socket close.
Fixes: 636d25d557d1 ("sctp: not copy sctp_sock pd_lobby in sctp_copy_descendant")
Signed-off-by: Henry Ptasinski <hptasinski@google.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions