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| author | Mike Frysinger <vapier@gentoo.org> | 2009-06-14 02:00:02 -0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2009-06-19 14:58:07 +0200 |
| commit | 9844813f226f6d07e1544e915529cb88f4fcb868 (patch) | |
| tree | cdf051b38220c6d99a6f4aac372d7b95eda26c6a /lib/string_helpers.c | |
| parent | 0732f87761dbe417cb6e084b712d07e879e876ef (diff) | |
asm-generic: uaccess: add missing access_ok() check to strnlen_user()
The strnlen_user() function was missing a access_ok() check on the pointer
given. We've had cases on Blackfin systems where test programs caused
kernel crashes here because userspace passed up a NULL/-1 pointer and the
kernel gladly attempted to run strlen() on it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions