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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 32927393dc ("sysctl: pass kernel pointers to
->proc_handler"). The __user qualifier was erroneously brought back in
commit 0df8bdd5e3 ("stackleak: move stack_erasing sysctl to
stackleak.c"). This fixes the error by removing the __user qualifier.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202510221719.3ggn070M-lkp@intel.com/
Signed-off-by: Joel Granados <joel.granados@kernel.org>
This commit is contained in:
Joel Granados 2025-10-27 11:24:17 +01:00
parent c3102febf4
commit 1aa53326e1
1 changed files with 1 additions and 1 deletions
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2
kernel/kstack_erase.c
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@ -23,7 +23,7 @@ static DEFINE_STATIC_KEY_FALSE(stack_erasing_bypass);
#ifdef CONFIG_SYSCTL #ifdef CONFIG_SYSCTL
static int stack_erasing_sysctl(const struct ctl_table *table, int write, 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 ret = 0;
int state = !static_branch_unlikely(&stack_erasing_bypass); int state = !static_branch_unlikely(&stack_erasing_bypass);