2.6.22-stable review patch. If anyone has any objections, please let us know.
------------------ From: Ingo Molnar <[EMAIL PROTECTED]> vfs: coredumping fix patch c46f739dd39db3b07ab5deb4e3ec81e1c04a91af in mainline fix: http://bugzilla.kernel.org/show_bug.cgi?id=3043 only allow coredumping to the same uid that the coredumping task runs under. Signed-off-by: Ingo Molnar <[EMAIL PROTECTED]> Acked-by: Alan Cox <[EMAIL PROTECTED]> Acked-by: Christoph Hellwig <[EMAIL PROTECTED]> Acked-by: Al Viro <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> Cc: maximilian attems <[EMAIL PROTECTED]> Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]> --- fs/exec.c | 6 ++++++ 1 file changed, 6 insertions(+) --- a/fs/exec.c +++ b/fs/exec.c @@ -1561,6 +1561,12 @@ int do_coredump(long signr, int exit_cod 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) -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
