Christian Marangi 087de000e4 PM / devfreq: Fix buffer overflow in trans_stat_show ... commit 08e23d05fa upstream. Fix buffer overflow in trans_stat_show(). Convert simple snprintf to the more secure scnprintf with size of PAGE_SIZE. Add condition checking if we are exceeding PAGE_SIZE and exit early from loop. Also add at the end a warning that we exceeded PAGE_SIZE and that stats is disabled. Return -EFBIG in the case where we don't have enough space to write the full transition table. Also document in the ABI that this function can return -EFBIG error. Link: https://lore.kernel.org/all/20231024183016.14648-2-ansuelsmth@gmail.com/ Cc: stable@vger.kernel.org Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218041 Fixes: e552bbaf5b ("PM / devfreq: Add sysfs node for representing frequency transition information.") Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-05-02 16:23:44 +02:00
..
event	PM / devfreq: rockchip-dfi: Make pmu regmap mandatory	2023-11-20 11:06:45 +01:00
devfreq-event.c
devfreq.c	PM / devfreq: Fix buffer overflow in trans_stat_show	2024-05-02 16:23:44 +02:00
exynos-bus.c
governor.h
governor_passive.c
governor_performance.c
governor_powersave.c
governor_simpleondemand.c
governor_userspace.c	PM/devfreq: governor: Add a private governor_data for governor	2023-01-14 10:16:31 +01:00
imx-bus.c
imx8m-ddrc.c
Kconfig
Makefile
rk3399_dmc.c	PM / devfreq: rk3399_dmc: Disable edev on remove()	2022-06-09 10:20:57 +02:00
tegra20-devfreq.c
tegra30-devfreq.c