4.9-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit a7043e9529f3c367cc4d82997e00be034cbe57ca ]
My static checker complains about an out of bounds read:
drivers/message/fusion/mptctl.c:2786 mptctl_hp_targetinfo() error: buffer overflow 'hd->sel_timeout' 255 <= u32max.
It's true that we probably should have a bounds check here.
Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Reviewed-by: Johannes Thumshirn jthumshirn@suse.de Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/message/fusion/mptctl.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -2698,6 +2698,8 @@ mptctl_hp_targetinfo(unsigned long arg) __FILE__, __LINE__, iocnum); return -ENODEV; } + if (karg.hdr.id >= MPT_MAX_FC_DEVICES) + return -EINVAL; dctlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "mptctl_hp_targetinfo called.\n", ioc->name));