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Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 

Pull execve fix from Eric Biederman:
 "While working on my exec cleanups I found a bug in exec that I
  introduced by accident a couple of years ago. I apparently missed the
  fact that bprm->file can change.

  Now I have a very personal motive to clean up exec and make it more
  approachable.

  The change is just moving woud_dump to where it acts on the final
  bprm->file not the initial bprm->file. I have been careful and tested
  and verify this fix works"

* 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  exec: Move would_dump into flush_old_exec
alistair/sunxi64-5.7-dsi
Linus Torvalds 2020-05-17 12:23:37 -07:00
parent ef0d5b9102 f87d1c9559
commit b48397cb75
1 changed files with 2 additions and 2 deletions
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4
fs/exec.c
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@ -1317,6 +1317,8 @@ int flush_old_exec(struct linux_binprm * bprm)
*/
set_mm_exe_file(bprm->mm, bprm->file);
would_dump(bprm, bprm->file);
/*
* Release all of the old mmap stuff
*/
@ -1876,8 +1878,6 @@ static int __do_execve_file(int fd, struct filename *filename,
if (retval < 0)
goto out;
would_dump(bprm, bprm->file);
retval = exec_binprm(bprm);
if (retval < 0)
goto out;