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author | Kees Cook <keescook@chromium.org> | 2016-08-17 14:42:08 -0700 |
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committer | Satya Tangirala <satyat@google.com> | 2018-09-21 14:50:33 -0700 |
commit | 68e051d4a782767639205e447c083d08c51bc028 (patch) | |
tree | 51e6d7ae514c9dc3c4dfdd0251b82671cc90ade8 /fs/kernfs | |
parent | cb28adba1a09a8efafb63dcb69c6dfca7e2d7c99 (diff) |
BACKPORT: list: Split list_add() debug checking into separate function
(cherry-picked from d7c816733d501b59dbdc2483f2cc8e4431fd9160)
Right now, __list_add() code is repeated either in list.h or in
list_debug.c, but the only differences between the two versions
are the debug checks. This commit therefore extracts these debug
checks into a separate __list_add_valid() function and consolidates
__list_add(). Additionally this new __list_add_valid() function will stop
list manipulations if a corruption is detected, instead of allowing for
further corruption that may lead to even worse conditions.
This is slight refactoring of the same hardening done in PaX and Grsecurity.
Change-Id: I9a9c9a58857cf837bec7abdb2ee4970cd1242a5e
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Satya Tangirala <satyat@google.com>
Diffstat (limited to 'fs/kernfs')
0 files changed, 0 insertions, 0 deletions