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authorMatheus Tavares Bernardino <quic_mathbern@quicinc.com>2023-03-06 20:15:21 -0300
committerDaniel P. Berrangé <berrange@redhat.com>2023-03-14 13:41:21 +0000
commitc3a2c84ae3c1d5483ec30731321a674797dc5203 (patch)
tree27ff3ea7c54821d149c02b6697e5b931235bda5a /hw/input/ps2.c
parent92f4a21d912cd4618a2951c645b3d27d3c8a6b21 (diff)
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io/channel-tls: plug memory leakage on GSource
This leakage can be seen through test-io-channel-tls: $ ../configure --target-list=aarch64-softmmu --enable-sanitizers $ make ./tests/unit/test-io-channel-tls $ ./tests/unit/test-io-channel-tls Indirect leak of 104 byte(s) in 1 object(s) allocated from: #0 0x7f81d1725808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144 #1 0x7f81d135ae98 in g_malloc (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x57e98) #2 0x55616c5d4c1b in object_new_with_propv ../qom/object.c:795 #3 0x55616c5d4a83 in object_new_with_props ../qom/object.c:768 #4 0x55616c5c5415 in test_tls_creds_create ../tests/unit/test-io-channel-tls.c:70 #5 0x55616c5c5a6b in test_io_channel_tls ../tests/unit/test-io-channel-tls.c:158 #6 0x7f81d137d58d (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x7a58d) Indirect leak of 32 byte(s) in 1 object(s) allocated from: #0 0x7f81d1725a06 in __interceptor_calloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:153 #1 0x7f81d1472a20 in gnutls_dh_params_init (/lib/x86_64-linux-gnu/libgnutls.so.30+0x46a20) #2 0x55616c6485ff in qcrypto_tls_creds_x509_load ../crypto/tlscredsx509.c:634 #3 0x55616c648ba2 in qcrypto_tls_creds_x509_complete ../crypto/tlscredsx509.c:694 #4 0x55616c5e1fea in user_creatable_complete ../qom/object_interfaces.c:28 #5 0x55616c5d4c8c in object_new_with_propv ../qom/object.c:807 #6 0x55616c5d4a83 in object_new_with_props ../qom/object.c:768 #7 0x55616c5c5415 in test_tls_creds_create ../tests/unit/test-io-channel-tls.c:70 #8 0x55616c5c5a6b in test_io_channel_tls ../tests/unit/test-io-channel-tls.c:158 #9 0x7f81d137d58d (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x7a58d) ... SUMMARY: AddressSanitizer: 49143 byte(s) leaked in 184 allocation(s). The docs for `g_source_add_child_source(source, child_source)` says "source will hold a reference on child_source while child_source is attached to it." Therefore, we should unreference the child source at `qio_channel_tls_read_watch()` after attaching it to `source`. With this change, ./tests/unit/test-io-channel-tls shows no leakages. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'hw/input/ps2.c')
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