diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 4ccaaa4b13b..282240afe99 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1780,6 +1780,12 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs) but keep the previous behaviour for now. */ if (!ispipe && !S_ISREG(inode->i_mode)) goto close_fail; + /* + * Dont allow local users get cute and trick others to coredump + * into their pre-created files: + */ + if (inode->i_uid != current->fsuid) + goto close_fail; if (!file->f_op) goto close_fail; if (!file->f_op->write) |