virchrdev: Don't leak @dev member of virChrdevHashEntry struct

When opening a console to a domain, we put a tuple of {path,
virStreamPtr} into a hash table that's private to the domain.
This is to ensure only one client at most has the console stream
open. Later, when the console is closed, the tuple is removed
from the hash table and freed. Except, @path won't be freed.

==234102== 60 bytes in 5 blocks are definitely lost in loss record 436 of 651
==234102==    at 0x4836753: malloc (vg_replace_malloc.c:307)
==234102==    by 0x5549110: g_malloc (in /usr/lib64/libglib-2.0.so.0.6000.6)
==234102==    by 0x5562D1E: g_strdup (in /usr/lib64/libglib-2.0.so.0.6000.6)
==234102==    by 0x4A5A917: virChrdevOpen (virchrdev.c:412)
==234102==    by 0x17B64645: qemuDomainOpenConsole (qemu_driver.c:17309)
==234102==    by 0x4BC8031: virDomainOpenConsole (libvirt-domain.c:9662)
==234102==    by 0x13F854: remoteDispatchDomainOpenConsole (remote_daemon_dispatch_stubs.h:9211)
==234102==    by 0x13F72F: remoteDispatchDomainOpenConsoleHelper (remote_daemon_dispatch_stubs.h:9178)
==234102==    by 0x4AB0685: virNetServerProgramDispatchCall (virnetserverprogram.c:430)
==234102==    by 0x4AB01F0: virNetServerProgramDispatch (virnetserverprogram.c:302)
==234102==    by 0x4AB700B: virNetServerProcessMsg (virnetserver.c:136)
==234102==    by 0x4AB70CB: virNetServerHandleJob (virnetserver.c:153)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Michal Privoznik 2020-01-08 09:18:29 +01:00
parent ac67964e73
commit aab3779994

View File

@ -225,6 +225,7 @@ static void virChrdevHashEntryFree(void *data)
/* delete lock file */ /* delete lock file */
virChrdevLockFileRemove(ent->dev); virChrdevLockFileRemove(ent->dev);
g_free(ent->dev);
g_free(ent); g_free(ent);
} }