4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx> [ Upstream commit 0218c766263e70795c5eaa17d75ed54bca350950 ] Free useless ucode_patch entry when it's replaced. [ bp: Drop the memfree_patch() two-liner. ] Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Srinivas REDDY Eeda <srinivas.eeda@xxxxxxxxxx> Link: http://lkml.kernel.org/r/888102f0-fd22-459d-b090-a1bd8a00cb2b@default Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/x86/kernel/cpu/microcode/intel.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) --- a/arch/x86/kernel/cpu/microcode/intel.c +++ b/arch/x86/kernel/cpu/microcode/intel.c @@ -190,8 +190,11 @@ static void save_microcode_patch(void *d p = memdup_patch(data, size); if (!p) pr_err("Error allocating buffer %p\n", data); - else + else { list_replace(&iter->plist, &p->plist); + kfree(iter->data); + kfree(iter); + } } }
