4.17-stable review patch. If anyone has any objections, please let me know.
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From: Takashi Iwai tiwai@suse.de
commit b748f2de4b2f578599f46c6000683a8da755bf68 upstream.
The edac_mem_types[] array misses a MEM_LRDDR4 entry, which leads to NULL pointer dereference when accessed via sysfs or such.
Signed-off-by: Takashi Iwai tiwai@suse.de Cc: Mauro Carvalho Chehab mchehab@kernel.org Cc: Yazen Ghannam Yazen.Ghannam@amd.com Cc: linux-edac linux-edac@vger.kernel.org Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20180810141426.8918-1-tiwai@suse.de Fixes: 1e8096bb2031 ("EDAC: Add LRDDR4 DRAM type") Signed-off-by: Borislav Petkov bp@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/edac/edac_mc.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -215,6 +215,7 @@ const char * const edac_mem_types[] = { [MEM_LRDDR3] = "Load-Reduced-DDR3-RAM", [MEM_DDR4] = "Unbuffered-DDR4", [MEM_RDDR4] = "Registered-DDR4", + [MEM_LRDDR4] = "Load-Reduced-DDR4-RAM", [MEM_NVDIMM] = "Non-volatile-RAM", }; EXPORT_SYMBOL_GPL(edac_mem_types);