| commit | aa78c1ccfab6018289bc2bfd0092d516d0a49ec5 | |
| author | Borislav Petkov <bp@suse.de> | |
| Fri, 25 Aug 2017 10:04:56 +0000 (25 12:04 +0200) | ||
| committer | Thomas Gleixner <tglx@linutronix.de> | |
| Tue, 29 Aug 2017 08:59:28 +0000 (29 10:59 +0200) | ||
| tree | e5a03ca7cf4701486be7c2c79c390095849f1537 | treesnapshot (tar.gz zip) |
| parent | 0e3258753f8183c63bf68bd274d2cc7e71e5f402 | commitdiff |
x86/microcode/intel: Improve microcode patches saving flow
Avoid potentially dereferencing a NULL pointer when saving a microcode
patch for early loading on the application processors.
While at it, drop the IS_ERR() checking in favor of simpler, NULL-ptr
checks which are sufficient and rename __alloc_microcode_buf() to
memdup_patch() to more precisely denote what it does.
No functionality change.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-janitors@vger.kernel.org
Link: http://lkml.kernel.org/r/20170825100456.n236w3jebteokfd6@pd.tnic
Avoid potentially dereferencing a NULL pointer when saving a microcode
patch for early loading on the application processors.
While at it, drop the IS_ERR() checking in favor of simpler, NULL-ptr
checks which are sufficient and rename __alloc_microcode_buf() to
memdup_patch() to more precisely denote what it does.
No functionality change.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-janitors@vger.kernel.org
Link: http://lkml.kernel.org/r/20170825100456.n236w3jebteokfd6@pd.tnic
| arch/x86/kernel/cpu/microcode/intel.c | diffblobblamehistory |