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| author | Xin Long <lucien.xin@gmail.com> | 2023-04-10 15:43:30 -0400 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-04-13 10:01:59 +0200 |
| commit | 32832a2caf82663870126c5186cf8f86c8b2a649 (patch) | |
| tree | c53ebff8f60f06b37bd7b35c9aaacc3b270c931e /drivers/net/netdevsim/psample.c | |
| parent | 6417070918de3bcdbe0646e7256dae58fd8083ba (diff) | |
sctp: fix a potential overflow in sctp_ifwdtsn_skip
Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only
checks the pos against the end of the chunk. However, the data left for
the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference
it as struct sctp_ifwdtsn_skip may cause coverflow.
This patch fixes it by checking the pos against "the end of the chunk -
sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to
sctp_fwdtsn_skip.
Fixes: 0fc2ea922c8a ("sctp: implement validate_ftsn for sctp_stream_interleave")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/2a71bffcd80b4f2c61fac6d344bb2f11c8fd74f7.1681155810.git.lucien.xin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/netdevsim/psample.c')
0 files changed, 0 insertions, 0 deletions