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| author | Dave Martin <Dave.Martin@arm.com> | 2017-03-27 15:10:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-03-31 10:31:46 +0200 |
| commit | 616fe993f410c589cd928dfb015ccaf9c931dcc1 (patch) | |
| tree | 16c4c47c636fbbb27c309d1ad0066cd575e7aac8 /lib/test-string_helpers.c | |
| parent | d77bd2d6a478468127da79e6920b44c467baaa9e (diff) | |
h8300/ptrace: Fix incorrect register transfer count
commit 502585c7555083d4a949c08350306b9ec196779e upstream.
regs_set() and regs_get() are vulnerable to an off-by-1 buffer overrun
if CONFIG_CPU_H8S is set, since this adds an extra entry to
register_offset[] but not to user_regs_struct.
So, iterate over user_regs_struct based on its actual size, not based on
the length of register_offset[].
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/test-string_helpers.c')
0 files changed, 0 insertions, 0 deletions