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| author | Andi Kleen <ak@suse.de> | 2007-09-21 16:16:18 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-21 09:52:07 -0700 |
| commit | 176df2457ef6207156ca1a40991c54ca01fef567 (patch) | |
| tree | dddbc675ad695d1bae8f32a1c877b47c3a548a09 /fs | |
| parent | 335fb8fc71692830aca0a5a5fe7f60016ee0d0aa (diff) | |
| download | talos-obmc-linux-176df2457ef6207156ca1a40991c54ca01fef567.tar.gz talos-obmc-linux-176df2457ef6207156ca1a40991c54ca01fef567.zip | |
x86_64: Zero extend all registers after ptrace in 32bit entry path.
Strictly it's only needed for eax.
It actually does a little more than strictly needed -- the other registers
are already zero extended.
Also remove the now unnecessary and non functional compat task check
in ptrace.
This is CVE-2007-4573
Found by Wojciech Purczynski
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions
