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| author | Yi Zou <yi.zou@intel.com> | 2011-04-01 16:06:25 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2011-05-01 10:20:45 -0500 |
| commit | a01a5a5789287113cd6bb25c79cf2a826874c918 (patch) | |
| tree | f113104d04d3df77041c866942aa304319ec0d72 | |
| parent | 69922fcd534cfc82e2d44374fa219e7c3b27c492 (diff) | |
| download | linux-a01a5a5789287113cd6bb25c79cf2a826874c918.tar.gz linux-a01a5a5789287113cd6bb25c79cf2a826874c918.tar.bz2 linux-a01a5a5789287113cd6bb25c79cf2a826874c918.zip | |
[SCSI] libfcoe: fix possible buffer overflow in fcoe_transport_show
possible buffer overflow in fcoe_transport_show when reaching the end of
buffer and crossing PAGE_SIZE boundary.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_transport.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index ec0f395263c5..538f29923ab4 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -385,9 +385,9 @@ static int fcoe_transport_show(char *buffer, const struct kernel_param *kp) i = j = sprintf(buffer, "Attached FCoE transports:"); mutex_lock(&ft_mutex); list_for_each_entry(ft, &fcoe_transports, list) { - i += snprintf(&buffer[i], IFNAMSIZ, "%s ", ft->name); - if (i >= PAGE_SIZE) + if (i >= PAGE_SIZE - IFNAMSIZ) break; + i += snprintf(&buffer[i], IFNAMSIZ, "%s ", ft->name); } mutex_unlock(&ft_mutex); if (i == j) |