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Ryan Lee eda378a0ab apparmor: ensure WB_HISTORY_SIZE value is a power of 2

[ Upstream commit 6c055e6256 ]

WB_HISTORY_SIZE was defined to be a value not a power of 2, despite a
comment in the declaration of struct match_workbuf stating it is and a
modular arithmetic usage in the inc_wb_pos macro assuming that it is. Bump
WB_HISTORY_SIZE's value up to 32 and add a BUILD_BUG_ON_NOT_POWER_OF_2
line to ensure that any future changes to the value of WB_HISTORY_SIZE
respect this requirement.

Fixes: 136db99485 ("apparmor: increase left match history buffer size")

Signed-off-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-08-28 16:22:35 +02:00

include

apparmor: ensure WB_HISTORY_SIZE value is a power of 2

2025-08-28 16:22:35 +02:00

.gitignore

…

apparmorfs.c

apparmor: fix possible NULL pointer dereference

2024-09-12 11:06:40 +02:00

audit.c

ima: Avoid blocking in RCU read-side critical section

2024-07-18 13:05:44 +02:00