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Fix SCM_RIGHTS compat mode

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Merge tag 'seccomp-v5.9-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp fix from Kees Cook:
 "This fixes my typo in the SCM_RIGHTS refactoring that broke compat
  handling.

  Thanks to Thadeu Lima de Souza Cascardo for tracking it down, and to
  Christian Zigotzky and Alex Xu for their reports"

* tag 'seccomp-v5.9-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  net/scm: Fix typo in SCM_RIGHTS compat refactoring
This commit is contained in:
Linus Torvalds 2020-08-07 13:16:22 -07:00
commit 1fa2c0a0c8
1 changed files with 1 additions and 1 deletions
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2
net/compat.c
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@ -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++) {