diff options
| author | Tom Gundersen <teg@jklm.no> | 2014-12-29 02:18:21 +0100 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2014-12-29 02:20:04 +0100 |
| commit | 09773ef4462657bffadc568d08c962041fea9944 (patch) | |
| tree | 6901af9c5b8ffcfd5a25b6079ebdaa379ecca450 /src/libsystemd/sd-rtnl | |
| parent | 2da780b9763424d3133881ed9f51545cc8b9b575 (diff) | |
rtnl: recv_message - don't enforce sender uid
All we care about is that the kernel (pid==0) sent the message. Verifying the sender uid
seems to break when using userns.
Reported by Stéphane Graber.
Diffstat (limited to 'src/libsystemd/sd-rtnl')
| -rw-r--r-- | src/libsystemd/sd-rtnl/rtnl-message.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsystemd/sd-rtnl/rtnl-message.c b/src/libsystemd/sd-rtnl/rtnl-message.c index 640c0ea93e..36eb9f5b39 100644 --- a/src/libsystemd/sd-rtnl/rtnl-message.c +++ b/src/libsystemd/sd-rtnl/rtnl-message.c @@ -1363,10 +1363,10 @@ static int socket_recv_message(int fd, struct iovec *iov, uint32_t *_group, bool struct ucred *ucred = (void *)CMSG_DATA(cmsg); /* from the kernel */ - if (ucred->uid == 0 && ucred->pid == 0) + if (ucred->pid == 0) auth = true; else - log_debug("rtnl: ignoring message from uid %u pid %u", ucred->uid, ucred->pid); + log_debug("rtnl: ignoring message from pid %u", ucred->pid); } else if (cmsg->cmsg_level == SOL_NETLINK && cmsg->cmsg_type == NETLINK_PKTINFO && cmsg->cmsg_len == CMSG_LEN(sizeof(struct nl_pktinfo))) { |