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-rw-r--r--fs/binfmt_misc.c40
1 files changed, 8 insertions, 32 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 50a73afdf9b7..ad2866f28f0c 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -134,7 +134,6 @@ static int load_misc_binary(struct linux_binprm *bprm)
Node *fmt;
struct file *interp_file = NULL;
int retval;
- int fd_binary = -1;
retval = -ENOEXEC;
if (!enabled)
@@ -161,29 +160,12 @@ static int load_misc_binary(struct linux_binprm *bprm)
}
if (fmt->flags & MISC_FMT_OPEN_BINARY) {
-
- /* if the binary should be opened on behalf of the
- * interpreter than keep it open and assign descriptor
- * to it
- */
- fd_binary = get_unused_fd_flags(0);
- if (fd_binary < 0) {
- retval = fd_binary;
- goto ret;
- }
- fd_install(fd_binary, bprm->file);
-
- /* if the binary is not readable than enforce mm->dumpable=0
- regardless of the interpreter's permissions */
- would_dump(bprm, bprm->file);
+ /* Pass the open binary to the interpreter */
+ bprm->have_execfd = 1;
+ bprm->executable = bprm->file;
allow_write_access(bprm->file);
bprm->file = NULL;
-
- /* mark the bprm that fd should be passed to interp */
- bprm->interp_flags |= BINPRM_FLAGS_EXECFD;
- bprm->interp_data = fd_binary;
-
} else {
allow_write_access(bprm->file);
fput(bprm->file);
@@ -192,19 +174,19 @@ static int load_misc_binary(struct linux_binprm *bprm)
/* make argv[1] be the path to the binary */
retval = copy_strings_kernel(1, &bprm->interp, bprm);
if (retval < 0)
- goto error;
+ goto ret;
bprm->argc++;
/* add the interp as argv[0] */
retval = copy_strings_kernel(1, &fmt->interpreter, bprm);
if (retval < 0)
- goto error;
+ goto ret;
bprm->argc++;
/* Update interp in case binfmt_script needs it. */
retval = bprm_change_interp(fmt->interpreter, bprm);
if (retval < 0)
- goto error;
+ goto ret;
if (fmt->flags & MISC_FMT_OPEN_FILE) {
interp_file = file_clone_open(fmt->interp_file);
@@ -215,7 +197,7 @@ static int load_misc_binary(struct linux_binprm *bprm)
}
retval = PTR_ERR(interp_file);
if (IS_ERR(interp_file))
- goto error;
+ goto ret;
bprm->file = interp_file;
if (fmt->flags & MISC_FMT_CREDENTIALS)
@@ -223,17 +205,11 @@ static int load_misc_binary(struct linux_binprm *bprm)
retval = search_binary_handler(bprm);
if (retval < 0)
- goto error;
+ goto ret;
ret:
dput(fmt->dentry);
return retval;
-error:
- if (fd_binary > 0)
- ksys_close(fd_binary);
- bprm->interp_flags = 0;
- bprm->interp_data = 0;
- goto ret;
}
/* Command parsers */