[lvm-devel] LVM2/lib/cache lvmcache.c
zkabelac at sourceware.org
zkabelac at sourceware.org
Mon Feb 13 14:26:15 UTC 2012
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac at sourceware.org 2012-02-13 14:26:15
Modified files:
lib/cache : lvmcache.c
Log message:
Add internal error to guard vgname2 NULL dereference
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/cache/lvmcache.c.diff?cvsroot=lvm2&r1=1.125&r2=1.126
--- LVM2/lib/cache/lvmcache.c 2012/02/12 23:01:19 1.125
+++ LVM2/lib/cache/lvmcache.c 2012/02/13 14:26:15 1.126
@@ -321,13 +321,17 @@
if (!dm_hash_get_data(_lock_hash, n))
return_0;
- vgname2 = dm_hash_get_key(_lock_hash, n);
+ if (!(vgname2 = dm_hash_get_key(_lock_hash, n))) {
+ log_error(INTERNAL_ERROR "VG lock %s hits NULL.",
+ vgname);
+ return 0;
+ }
if (!_vgname_order_correct(vgname2, vgname)) {
log_errno(EDEADLK, INTERNAL_ERROR "VG lock %s must "
"be requested before %s, not after.",
vgname, vgname2);
- return_0;
+ return 0;
}
}
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