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| author | Zhenzhong Duan <zhenzhong.duan@oracle.com> | 2018-06-22 13:51:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-24 13:09:04 +0200 |
| commit | b580cead624b5e0471cd418b3c0a6f20d15e95ba (patch) | |
| tree | ebb65d21a483bdf614c11cb4256c30a7f4f54626 | |
| parent | 99654c9ffcea2d835283aa8c570432bd03ca6943 (diff) | |
| download | linux-b580cead624b5e0471cd418b3c0a6f20d15e95ba.tar.gz | |
x86/microcode/intel: Fix memleak in save_microcode_patch()
[ 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@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
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 1c2cfa0644aa9..97ccf4c3b45be 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); + } } } |