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| author | Zhenzhong Duan <zhenzhong.duan@oracle.com> | 2018-06-22 13:51:26 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-06-22 14:42:59 +0200 |
| commit | 0218c766263e70795c5eaa17d75ed54bca350950 (patch) | |
| tree | 694a5b2e8716fe124021284f498626ad71b0be14 /arch/x86 | |
| parent | x86/platform/UV: Add kernel parameter to set memory block size (diff) | |
| download | linux-0218c766263e70795c5eaa17d75ed54bca350950.tar.xz linux-0218c766263e70795c5eaa17d75ed54bca350950.zip | |
x86/microcode/intel: Fix memleak in save_microcode_patch()
Free useless ucode_patch entry when it's replaced.
[ bp: Drop the memfree_patch() two-liner. ]
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Srinivas REDDY Eeda <srinivas.eeda@oracle.com>
Link: http://lkml.kernel.org/r/888102f0-fd22-459d-b090-a1bd8a00cb2b@default
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/intel.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c index 1c2cfa0644aa..97ccf4c3b45b 100644 --- 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 *data, unsigned int size) 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); + } } } |