On Tue, Apr 30, 2024 at 07:53:31PM -0700, Eric Biggers wrote:
From: Eric Biggers ebiggers@google.com
Since the fsverity sysctl registration runs as a builtin initcall, there is no corresponding sysctl deregistration and the resulting struct ctl_table_header is not used. This can cause a kmemleak warning just after the system boots up. (A pointer to the ctl_table_header is stored in the fsverity_sysctl_header static variable, which kmemleak should detect; however, the compiler can optimize out that variable.) Avoid the kmemleak warning by using register_sysctl_init() which is intended for use by builtin initcalls and uses kmemleak_not_leak().
Reported-by: Yi Zhang yi.zhang@redhat.com Closes: https://lore.kernel.org/r/CAHj4cs8DTSvR698UE040rs_pX1k-WVe7aR6N2OoXXuhXJPDC-... Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers ebiggers@google.com
Applied to https://git.kernel.org/pub/scm/fs/fsverity/linux.git/log/?h=for-next
- Eric