| commit | 8b01fc86b9f425899f8a3a8fc1c47d73c2c20543 | [log] [tgz] |
|---|---|---|
| author | Jann Horn <jann@thejh.net> | Sun Apr 19 02:48:39 2015 +0200 |
| committer | Linus Torvalds <torvalds@linux-foundation.org> | Sun Apr 19 13:46:21 2015 -0700 |
| tree | 99e05c7758aed78cfaf10556cbe7057efaa5c02c | |
| parent | 5224b9613b91d937c6948fe977023247afbcc04e [diff] |
fs: take i_mutex during prepare_binprm for set[ug]id executables This prevents a race between chown() and execve(), where chowning a setuid-user binary to root would momentarily make the binary setuid root. This patch was mostly written by Linus Torvalds. Signed-off-by: Jann Horn <jann@thejh.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>