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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-01-25 17:27:27 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-05-25 17:17:47 +0300 |
| commit | 62d16de3109f8dff76f97b58d66ce502970b2f3f (patch) | |
| tree | 3ef39d24aa2c03fa049f3d88bc96ad83cc843004 | |
| parent | 0bf213d90bb2c25d1f36811d14f239126764b130 (diff) | |
| download | linux-62d16de3109f8dff76f97b58d66ce502970b2f3f.tar.xz | |
scsi: mptfusion: Add bounds check in mptctl_hp_targetinfo()
[ 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>
| -rw-r--r-- | drivers/message/fusion/mptctl.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index 7b3b41368931..cf6ce9f600ca 100644 --- 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)); |