[LU-9245] lgss_sk may unsafely overwrite nodemap and fsname fields in keys

Related — Tue, 18 Jul 2017 19:05:39 +0000

lgss_sk.c uses strncpy() to modify names of strings for both fsname and nodemap fields. If the replacement string is smaller than the original string, it will not be zero terminated properly. For example, replacing a nodemap name of "default" with "c0" with the lgss_sk utility can result in invalid names such as:

Nodemap name: c0fault

I will submit a small patch to switch this to snprintf(), although being a little more verbose, will be safe to use on a parameter of variable length.

Whamcloud Community JIRA

[LU-9245] lgss_sk may unsafely overwrite nodemap and fsname fields in keys