-stable review patch. If anyone has any objections, please let us know.
------------------
Fixes a local DOS on Intel systems that lead to an endless
recursive fault. AMD machines don't seem to be affected.
Signed-off-by: Suresh Siddha <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Chris Wright <[email protected]>
---
fs/binfmt_elf.c | 5 +++++
1 files changed, 5 insertions(+)
--- linux-2.6.15.4.orig/fs/binfmt_elf.c
+++ linux-2.6.15.4/fs/binfmt_elf.c
@@ -932,6 +932,11 @@ static int load_elf_binary(struct linux_
kfree(elf_interpreter);
} else {
elf_entry = loc->elf_ex.e_entry;
+ if (BAD_ADDR(elf_entry)) {
+ send_sig(SIGSEGV, current, 0);
+ retval = -ENOEXEC; /* Nobody gets to see this, but.. */
+ goto out_free_dentry;
+ }
}
kfree(elf_phdata);
--
-
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