In host_memory_backend_get_host_nodes, we build host_nodes list and output it to v (a StringOutputVisitor) but forget to free the list. This fixes the memory leak.
The memory leak stack: ==qemu-kvm==209357==ERROR: LeakSanitizer: detected memory leaks Direct leak of 32 byte(s) in 2 object(s) allocated from: #0 0xfffe430e3393 in __interceptor_calloc (/lib64/libasan.so.4+0xd3393) ??:? #1 0xfffe41d58b9b in g_malloc0 (/lib64/libglib-2.0.so.0+0x58b9b) ??:? #2 0xaaac0cdb6e43 (/usr/libexec/qemu-kvm+0xe16e43) backends/hostmem.c:94 #3 0xaaac0d2edf83 (/usr/libexec/qemu-kvm+0x134df83) qom/object.c:1478 #4 0xaaac0c976513 (/usr/libexec/qemu-kvm+0x9d6513) hw/core/machine-qmp-cmds.c:312 #5 0xaaac0d2e980b (/usr/libexec/qemu-kvm+0x134980b) qom/object.c:1001 #6 0xaaac0c97779b (/usr/libexec/qemu-kvm+0x9d779b) hw/core/machine-qmp-cmds.c:328 (discriminator 1) #7 0xaaac0d26ed3f (/usr/libexec/qemu-kvm+0x12ced3f) qapi/qapi-commands-machine.c:327 #8 0xaaac0d43d647 (/usr/libexec/qemu-kvm+0x149d647) qapi/qmp-dispatch.c:147 #9 0xaaac0d21f74b (/usr/libexec/qemu-kvm+0x127f74b) monitor/qmp.c:120 #10 0xaaac0d22074b (/usr/libexec/qemu-kvm+0x128074b) monitor/qmp.c:209 (discriminator 4) #11 0xaaac0d4daefb (/usr/libexec/qemu-kvm+0x153aefb) util/async.c:117 #12 0xaaac0d4e30fb (/usr/libexec/qemu-kvm+0x15430fb) util/aio-posix.c:459 #13 0xaaac0d4dac8f (/usr/libexec/qemu-kvm+0x153ac8f) util/async.c:268 #14 0xfffe41d52a6b in g_main_context_dispatch (/lib64/libglib-2.0.so.0+0x52a6b) ??:? #15 0xaaac0d4e0e97 (/usr/libexec/qemu-kvm+0x1540e97) util/main-loop.c:218 #16 0xaaac0cd9bfa7 (/usr/libexec/qemu-kvm+0xdfbfa7) vl.c:1791 #17 0xaaac0c823bc3 (/usr/libexec/qemu-kvm+0x883bc3) vl.c:4473 #18 0xfffe40ab3ebf in __libc_start_main (/lib64/libc.so.6+0x23ebf) ??:? #19 0xaaac0c82ed5f (/usr/libexec/qemu-kvm+0x88ed5f) ??:? SUMMARY: AddressSanitizer: 32 byte(s) leaked in 2 allocation(s). Fixes: 4cf1b76bf1e2 (hostmem: add properties for NUMA memory policy) Reported-by: Euler Robot <euler.ro...@huawei.com> Signed-off-by: Keqian Zhu <zhukeqi...@huawei.com> --- backends/hostmem.c | 1 + 1 file changed, 1 insertion(+) diff --git a/backends/hostmem.c b/backends/hostmem.c index 4bde00e8e7..9f9ac95edd 100644 --- a/backends/hostmem.c +++ b/backends/hostmem.c @@ -105,6 +105,7 @@ host_memory_backend_get_host_nodes(Object *obj, Visitor *v, const char *name, ret: visit_type_uint16List(v, name, &host_nodes, errp); + qapi_free_uint16List(host_nodes); } static void -- 2.23.0