Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 <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>
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kernel/kstack_erase.c
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kernel/kstack_erase.c
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#ifdef CONFIG_SYSCTL
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static int stack_erasing_sysctl(const struct ctl_table *table, int write,
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void __user *buffer, size_t *lenp, loff_t *ppos)
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+
void *buffer, size_t *lenp, loff_t *ppos)
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{
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int ret = 0;
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int state = !static_branch_unlikely(&stack_erasing_bypass);