4.13-stable review patch. If anyone has any objections, please let me know.
------------------ From: Christophe Jaillet <[email protected]> commit ed36b4dba54a421ce5551638f6a9790b2c2116b1 upstream. Check memory allocation failures and return -ENOMEM in such cases, as already done few lines below for another memory allocation. This avoids NULL pointers dereference. Fixes: 14e494542636 ("libnvdimm, btt: BTT updates for UEFI 2.7 format") Signed-off-by: Christophe JAILLET <[email protected]> Reviewed-by: Vishal Verma <[email protected]> Signed-off-by: Dan Williams <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/nvdimm/btt.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1429,6 +1429,8 @@ int nvdimm_namespace_attach_btt(struct n } btt_sb = devm_kzalloc(&nd_btt->dev, sizeof(*btt_sb), GFP_KERNEL); + if (!btt_sb) + return -ENOMEM; /* * If this returns < 0, that is ok as it just means there wasn't
