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* [PATCH] s390x: Fix leak in machine_set_loadparm
@ 2025-05-09 17:49 Fabiano Rosas
  2025-05-09 18:00 ` Thomas Huth
                   ` (2 more replies)
  0 siblings, 3 replies; 9+ messages in thread
From: Fabiano Rosas @ 2025-05-09 17:49 UTC (permalink / raw)
  To: qemu-devel
  Cc: Thomas Huth, Halil Pasic, Christian Borntraeger, Eric Farman,
	Richard Henderson, David Hildenbrand, Ilya Leoshkevich

ASAN spotted a leaking string in machine_set_loadparm():

Direct leak of 9 byte(s) in 1 object(s) allocated from:
    #0 0x560ffb5bb379 in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:69:3
    #1 0x7f1aca926518 in g_malloc ../glib/gmem.c:106
    #2 0x7f1aca94113e in g_strdup ../glib/gstrfuncs.c:364
    #3 0x560ffc8afbf9 in qobject_input_type_str ../qapi/qobject-input-visitor.c:542:12
    #4 0x560ffc8a80ff in visit_type_str ../qapi/qapi-visit-core.c:349:10
    #5 0x560ffbe6053a in machine_set_loadparm ../hw/s390x/s390-virtio-ccw.c:802:10
    #6 0x560ffc0c5e52 in object_property_set ../qom/object.c:1450:5
    #7 0x560ffc0d4175 in object_property_set_qobject ../qom/qom-qobject.c:28:10
    #8 0x560ffc0c6004 in object_property_set_str ../qom/object.c:1458:15
    #9 0x560ffbe2ae60 in update_machine_ipl_properties ../hw/s390x/ipl.c:569:9
    #10 0x560ffbe2aa65 in s390_ipl_update_diag308 ../hw/s390x/ipl.c:594:5
    #11 0x560ffbdee132 in handle_diag_308 ../target/s390x/diag.c:147:9
    #12 0x560ffbebb956 in helper_diag ../target/s390x/tcg/misc_helper.c:137:9
    #13 0x7f1a3c51c730  (/memfd:tcg-jit (deleted)+0x39730)

Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
 hw/s390x/s390-virtio-ccw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index d5658afed9..744e901db8 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -804,6 +804,7 @@ static void machine_set_loadparm(Object *obj, Visitor *v,
     }
 
     s390_ipl_fmt_loadparm(ms->loadparm, val, errp);
+    g_free(val);
 }
 
 static void ccw_machine_class_init(ObjectClass *oc, const void *data)
-- 
2.35.3



^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2025-06-25  9:04 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-05-09 17:49 [PATCH] s390x: Fix leak in machine_set_loadparm Fabiano Rosas
2025-05-09 18:00 ` Thomas Huth
2025-05-12 14:07 ` Philippe Mathieu-Daudé
2025-05-12 14:13   ` Philippe Mathieu-Daudé
2025-05-12 15:37     ` Fabiano Rosas
2025-06-24  6:28       ` Thomas Huth
2025-06-24 12:34         ` Fabiano Rosas
2025-06-25  9:03           ` Kevin Wolf
2025-05-15 12:51 ` Halil Pasic

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