1. 17 Mar, 2023 8 commits
  2. 16 Mar, 2023 31 commits
  3. 15 Mar, 2023 1 commit
    • Alexander Mikhalitsyn's avatar
      scm: fix MSG_CTRUNC setting condition for SO_PASSSEC · a02d83f9
      Alexander Mikhalitsyn authored
      Currently, kernel would set MSG_CTRUNC flag if msg_control buffer
      wasn't provided and SO_PASSCRED was set or if there was pending SCM_RIGHTS.
      
      For some reason we have no corresponding check for SO_PASSSEC.
      
      In the recvmsg(2) doc we have:
             MSG_CTRUNC
                    indicates that some control data was discarded due to lack
                    of space in the buffer for ancillary data.
      
      So, we need to set MSG_CTRUNC flag for all types of SCM.
      
      This change can break applications those don't check MSG_CTRUNC flag.
      
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Eric Dumazet <edumazet@google.com>
      Cc: Jakub Kicinski <kuba@kernel.org>
      Cc: Paolo Abeni <pabeni@redhat.com>
      Cc: Leon Romanovsky <leon@kernel.org>
      Fixes: 1da177e4 ("Linux-2.6.12-rc2")
      Signed-off-by: default avatarAlexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
      
      v2:
      - commit message was rewritten according to Eric's suggestion
      Acked-by: default avatarPaul Moore <paul@paul-moore.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a02d83f9