This is a note to let you know that I've just added the patch titled x86/signal: Fix the value returned by strict_sas_size() to the 6.2-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: x86-signal-fix-the-value-returned-by-strict_sas_size.patch and it can be found in the queue-6.2 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 2e6ece505928d4f51b56c08a77e01b41ce0a0774 Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Date: Sat Jan 14 18:33:09 2023 +0100 x86/signal: Fix the value returned by strict_sas_size() [ Upstream commit ef6dfc4b238a435ab552207ec09e4a82b6426d31 ] Functions used with __setup() return 1 when the argument has been successfully parsed. Reverse the returned value so that 1 is returned when kstrtobool() is successful (i.e. returns 0). My understanding of these __setup() functions is that returning 1 or 0 does not change much anyway - so this is more of a cleanup than a functional fix. I spot it and found it spurious while looking at something else. Even if the output is not perfect, you'll get the idea with: $ git grep -B2 -A10 retu.*kstrtobool | grep __setup -B10 Fixes: 3aac3ebea08f ("x86/signal: Implement sigaltstack size validation") Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> Link: https://lore.kernel.org/r/73882d43ebe420c9d8fb82d0560021722b243000.1673717552.git.christophe.jaillet@xxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 1504eb8d25aa6..004cb30b74198 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -360,7 +360,7 @@ static bool strict_sigaltstack_size __ro_after_init = false; static int __init strict_sas_size(char *arg) { - return kstrtobool(arg, &strict_sigaltstack_size); + return kstrtobool(arg, &strict_sigaltstack_size) == 0; } __setup("strict_sas_size", strict_sas_size);