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Diffstat (limited to 'fs/exec.c')
-rw-r--r--fs/exec.c29
1 files changed, 8 insertions, 21 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 81ae6212187a..389fe7b0ba14 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1223,11 +1223,10 @@ EXPORT_SYMBOL(install_exec_creds);
* - the caller must hold ->cred_guard_mutex to protect against
* PTRACE_ATTACH
*/
-static int check_unsafe_exec(struct linux_binprm *bprm)
+static void check_unsafe_exec(struct linux_binprm *bprm)
{
struct task_struct *p = current, *t;
unsigned n_fs;
- int res = 0;
if (p->ptrace) {
if (p->ptrace & PT_PTRACE_CAP)
@@ -1253,22 +1252,15 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
}
rcu_read_unlock();
- if (p->fs->users > n_fs) {
+ if (p->fs->users > n_fs)
bprm->unsafe |= LSM_UNSAFE_SHARE;
- } else {
- res = -EAGAIN;
- if (!p->fs->in_exec) {
- p->fs->in_exec = 1;
- res = 1;
- }
- }
+ else
+ p->fs->in_exec = 1;
spin_unlock(&p->fs->lock);
-
- return res;
}
-/*
- * Fill the binprm structure from the inode.
+/*
+ * Fill the binprm structure from the inode.
* Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes
*
* This may be called multiple times for binary chains (scripts for example).
@@ -1453,7 +1445,6 @@ static int do_execve_common(const char *filename,
struct linux_binprm *bprm;
struct file *file;
struct files_struct *displaced;
- bool clear_in_exec;
int retval;
/*
@@ -1485,10 +1476,7 @@ static int do_execve_common(const char *filename,
if (retval)
goto out_free;
- retval = check_unsafe_exec(bprm);
- if (retval < 0)
- goto out_free;
- clear_in_exec = retval;
+ check_unsafe_exec(bprm);
current->in_execve = 1;
file = open_exec(filename);
@@ -1558,8 +1546,7 @@ out_file:
}
out_unmark:
- if (clear_in_exec)
- current->fs->in_exec = 0;
+ current->fs->in_exec = 0;
current->in_execve = 0;
out_free: