Commit f0df00eb authored by Dave Hansen's avatar Dave Hansen
Browse files

x86/cpu: Avoid running off the end of an AMD erratum table 



The NULL array terminator at the end of erratum_1386_microcode was
removed during the switch from x86_cpu_desc to x86_cpu_id. This
causes readers to run off the end of the array.

Replace the NULL.

Fixes: f3f32515 ("x86/cpu: Move AMD erratum 1386 table over to 'x86_cpu_id'")
Reported-by: default avatarJiri Slaby <jirislaby@kernel.org>
Signed-off-by: default avatarDave Hansen <dave.hansen@linux.intel.com>
parent 254a6d14

arch/x86/kernel/cpu/amd.c

+1 −0
Original line number Diff line number Diff line
@@ -805,6 +805,7 @@ static void init_amd_bd(struct cpuinfo_x86 *c) 
static const struct x86_cpu_id erratum_1386_microcode[] = {

	X86_MATCH_VFM_STEPS(VFM_MAKE(X86_VENDOR_AMD, 0x17, 0x01), 0x2, 0x2, 0x0800126e),

	X86_MATCH_VFM_STEPS(VFM_MAKE(X86_VENDOR_AMD, 0x17, 0x31), 0x0, 0x0, 0x08301052),

	{}

};



static void fix_erratum_1386(struct cpuinfo_x86 *c)