Causing a crash when storagePoolLookupByTargetPath beacuse of
Some types of storage pool have no target elements.
Use STREQ_NULLABLE instead of STREQ
Avoids segfaults when using NULL arguments.
Core was generated by `/usr/sbin/libvirtd'.
Program terminated with signal 11, Segmentation fault.
(gdb) bt
0 0x0000ffff9e951388 in strcmp () from /lib64/libc.so.6
1 0x0000ffff92103e9c in storagePoolLookupByTargetPathCallback (
obj=0xffff7009aab0, opaque=0xffff801058b0) at storage/storage_driver.c:1649
2 0x0000ffff9f2c52a4 in virStoragePoolObjListSearchCb (
payload=0xffff801058b0, name=<optimized out>, opaque=<optimized out>)
at conf/virstorageobj.c:476
3 0x0000ffff9f1f2f7c in virHashSearch (ctable=0xffff800f4f60,
iter=iter@entry=0xffff9f2c5278 <virStoragePoolObjListSearchCb>,
data=data@entry=0xffff95af7488, name=name@entry=0x0) at util/virhash.c:696
4 0x0000ffff9f2c64f0 in virStoragePoolObjListSearch (pools=0xffff800f2ce0,
searcher=searcher@entry=0xffff92103e68 <storagePoolLookupByTargetPathCallback>,
opaque=<optimized out>) at conf/virstorageobj.c:505
5 0x0000ffff92101f54 in storagePoolLookupByTargetPath (conn=0xffff5c0009f0,
path=0xffff7009a850 "/vms/images") at storage/storage_driver.c:1672
Signed-off-by: Yi Li <yili@winhong.com>
---
src/storage/storage_driver.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/storage/storage_driver.c b/src/storage/storage_driver.c
index a33328d..72ba252 100644
--- a/src/storage/storage_driver.c
+++ b/src/storage/storage_driver.c
@@ -1713,7 +1713,7 @@ storagePoolLookupByTargetPathCallback(virStoragePoolObjPtr obj,
return false;
def = virStoragePoolObjGetDef(obj);
- return STREQ(path, def->target.path);
+ return STREQ_NULLABLE(path, def->target.path);
}
--
2.7.5
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On 12/20/19 7:33 PM, Yi Li wrote: > Causing a crash when storagePoolLookupByTargetPath beacuse of > Some types of storage pool have no target elements. > Use STREQ_NULLABLE instead of STREQ > Avoids segfaults when using NULL arguments. > > Core was generated by `/usr/sbin/libvirtd'. > Program terminated with signal 11, Segmentation fault. > (gdb) bt > 0 0x0000ffff9e951388 in strcmp () from /lib64/libc.so.6 > 1 0x0000ffff92103e9c in storagePoolLookupByTargetPathCallback ( > obj=0xffff7009aab0, opaque=0xffff801058b0) at storage/storage_driver.c:1649 > 2 0x0000ffff9f2c52a4 in virStoragePoolObjListSearchCb ( > payload=0xffff801058b0, name=<optimized out>, opaque=<optimized out>) > at conf/virstorageobj.c:476 > 3 0x0000ffff9f1f2f7c in virHashSearch (ctable=0xffff800f4f60, > iter=iter@entry=0xffff9f2c5278 <virStoragePoolObjListSearchCb>, > data=data@entry=0xffff95af7488, name=name@entry=0x0) at util/virhash.c:696 > 4 0x0000ffff9f2c64f0 in virStoragePoolObjListSearch (pools=0xffff800f2ce0, > searcher=searcher@entry=0xffff92103e68 <storagePoolLookupByTargetPathCallback>, > opaque=<optimized out>) at conf/virstorageobj.c:505 > 5 0x0000ffff92101f54 in storagePoolLookupByTargetPath (conn=0xffff5c0009f0, > path=0xffff7009a850 "/vms/images") at storage/storage_driver.c:1672 > > Signed-off-by: Yi Li <yili@winhong.com> Reviewed-by: Cole Robinson <crobinso@redhat.com> and pushed now - Cole -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
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