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-rw-r--r--fs/binfmt_misc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index dbf0ac0..7191306 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -115,6 +115,12 @@ static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs)
if (!enabled)
goto _ret;
+ retval = -ENOEXEC;
+ if (bprm->misc_bang)
+ goto _ret;
+
+ bprm->misc_bang = 1;
+
/* to keep locking time low, we copy the interpreter string */
read_lock(&entries_lock);
fmt = check_file(bprm);
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