diff options
| author | Jan Beulich <JBeulich@novell.com> | 2009-10-26 15:20:29 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-11-09 16:52:19 -0800 |
| commit | 91d5ee32e8562dbb2cb801e85d15f39a81849147 (patch) | |
| tree | 34db5ccc4acfeec737349cdc788b62c60692d911 /net/unix/af_unix.c | |
| parent | c632a72c55ac1621f8e15f69ed35ee1cec3dd6f2 (diff) | |
x86-64: Fix register leak in 32-bit syscall audting
commit 81766741fe1eee3884219e8daaf03f466f2ed52f upstream.
Restoring %ebp after the call to audit_syscall_exit() is not
only unnecessary (because the register didn't get clobbered),
but in the sysenter case wasn't even doing the right thing: It
loaded %ebp from a location below the top of stack (RBP <
ARGOFFSET), i.e. arbitrary kernel data got passed back to user
mode in the register.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Roland McGrath <roland@redhat.com>
LKML-Reference: <4AE5CC4D020000780001BD13@vpn.id2.novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions