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| author | Kees Cook <keescook@chromium.org> | 2020-08-07 10:53:54 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2020-08-07 12:43:25 -0700 |
| commit | 16b89f695313d91c99bdaf6898f28a51d0af1b17 (patch) | |
| tree | ac9bc5a2f50c9f68bf34faef91a70baab00e35ab | |
| parent | 25d8d4eecace9de5a6a2193e4df1917afbdd3052 (diff) | |
| download | linux-16b89f695313d91c99bdaf6898f28a51d0af1b17.tar.gz linux-16b89f695313d91c99bdaf6898f28a51d0af1b17.tar.bz2 linux-16b89f695313d91c99bdaf6898f28a51d0af1b17.zip | |
net/scm: Fix typo in SCM_RIGHTS compat refactoring
When refactoring the SCM_RIGHTS code, I accidentally mis-merged my
native/compat diffs, which entirely broke using SCM_RIGHTS in compat
mode. Use the correct helper.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-August/216156.html
Reported-by: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/lkml/1596812929.lz7fuo8r2w.none@localhost/
Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Fixes: c0029de50982 ("net/scm: Regularize compat handling of scm_detach_fds()")
Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | net/compat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/compat.c b/net/compat.c index 703acb51c698..95ce707a30a3 100644 --- a/net/compat.c +++ b/net/compat.c @@ -294,7 +294,7 @@ void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm) (struct compat_cmsghdr __user *)msg->msg_control; unsigned int o_flags = (msg->msg_flags & MSG_CMSG_CLOEXEC) ? O_CLOEXEC : 0; int fdmax = min_t(int, scm_max_fds_compat(msg), scm->fp->count); - int __user *cmsg_data = CMSG_USER_DATA(cm); + int __user *cmsg_data = CMSG_COMPAT_DATA(cm); int err = 0, i; for (i = 0; i < fdmax; i++) { |