From: Joel Granados Date: Mon, 27 Oct 2025 10:24:17 +0000 (+0100) Subject: sysctl: remove __user qualifier from stack_erasing_sysctl buffer argument X-Git-Tag: v6.19-rc1~113^2~7 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1aa53326e1df68f8e7191053a3fd712449d444cb;p=thirdparty%2Fkernel%2Flinux.git sysctl: remove __user qualifier from stack_erasing_sysctl buffer argument The buffer arg in proc handler functions have been void* (no __user qualifier) since commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler"). The __user qualifier was erroneously brought back in commit 0df8bdd5e3b3 ("stackleak: move stack_erasing sysctl to stackleak.c"). This fixes the error by removing the __user qualifier. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202510221719.3ggn070M-lkp@intel.com/ Signed-off-by: Joel Granados --- diff --git a/kernel/kstack_erase.c b/kernel/kstack_erase.c index e49bb88b4f0a3..d4449884084c7 100644 --- a/kernel/kstack_erase.c +++ b/kernel/kstack_erase.c @@ -23,7 +23,7 @@ static DEFINE_STATIC_KEY_FALSE(stack_erasing_bypass); #ifdef CONFIG_SYSCTL static int stack_erasing_sysctl(const struct ctl_table *table, int write, - void __user *buffer, size_t *lenp, loff_t *ppos) + void *buffer, size_t *lenp, loff_t *ppos) { int ret = 0; int state = !static_branch_unlikely(&stack_erasing_bypass);