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Prevent NULL deference by checking return value of

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gctl_get_asciiparam.

MFC after:	2 weeks
This commit is contained in:
Xin LI 2010-02-02 22:25:22 +00:00
parent d577d18a00
commit 38907b4cc7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=203408
1 changed files with 9 additions and 0 deletions
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9
sys/geom/virstor/g_virstor.c
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@ -311,6 +311,11 @@ virstor_ctl_add(struct gctl_req *req, struct g_class *cp)
snprintf(aname, sizeof aname, "arg%d", i);
prov_name = gctl_get_asciiparam(req, aname);
if (prov_name == NULL) {
gctl_error(req, "Error fetching argument '%s'", aname);
g_topology_unlock();
return;
}
if (strncmp(prov_name, _PATH_DEV, strlen(_PATH_DEV)) == 0)
prov_name += strlen(_PATH_DEV);
@ -565,6 +570,10 @@ virstor_ctl_remove(struct gctl_req *req, struct g_class *cp)
sprintf(param, "arg%d", i);
prov_name = gctl_get_asciiparam(req, param);
if (prov_name == NULL) {
gctl_error(req, "Error fetching argument '%s'", param);
return;
}
if (strncmp(prov_name, _PATH_DEV, strlen(_PATH_DEV)) == 0)
prov_name += strlen(_PATH_DEV);