diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2009-01-30 20:27:14 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-31 23:51:31 (GMT) |
| commit | 878b8619f711280fd05845e21956434b5e588cc4 (patch) | |
| tree | e2cb6be1d6e16bd0da18a79a8a85f4194df33d6f /lib/show_mem.c | |
| parent | f984d024190d5df98e448e35aa9e89a46fe50bb9 (diff) | |
| download | linux-878b8619f711280fd05845e21956434b5e588cc4.tar.xz | |
Fix memory corruption in console selection
Fix an off-by-two memory error in console selection.
The loop below goes from sel_start to sel_end (inclusive), so it writes
one more character. This one more character was added to the allocated
size (+1), but it was not multiplied by an UTF-8 multiplier.
This patch fixes a memory corruption when UTF-8 console is used and the
user selects a few characters, all of them 3-byte in UTF-8 (for example
a frame line).
When memory redzones are enabled, a redzone corruption is reported.
When they are not enabled, trashing of random memory occurs.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/show_mem.c')
0 files changed, 0 insertions, 0 deletions