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tcmu: Fix possible to/from address overflow when doing the memcpy
authorXiubo Li <lixiubo@cmss.chinamobile.com>
Wed, 12 Jul 2017 07:51:17 +0000 (15:51 +0800)
committerNicholas Bellinger <nab@linux-iscsi.org>
Sun, 30 Jul 2017 22:12:32 +0000 (15:12 -0700)
commitc542942cb42186f99b6d715a833c7afad359f48f
tree935be87483fc8dcd9029bae5cc61f322fe505121tree | snapshot (tar.gz zip)
parent520eccdfe187591a51ea9ab4c1a024ae4d0f68d9commit | diff
tcmu: Fix possible to/from address overflow when doing the memcpy

For most case the sg->length equals to PAGE_SIZE, so this bug won't
be triggered. Otherwise this will crash the kernel, for example when
all segments' sg->length equal to 1K.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
drivers/target/target_core_user.c diff | blob | blame | history