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Fix crash during early close of TLS channel

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Merge tag 'io-tls-hs-crash-pull-request' of https://gitlab.com/berrange/qemu into staging

Fix crash during early close of TLS channel

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# gpg: Signature made Tue 01 Aug 2023 10:46:06 AM PDT
# gpg:                using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg:                 aka "Daniel P. Berrange <berrange@redhat.com>" [full]

* tag 'io-tls-hs-crash-pull-request' of https://gitlab.com/berrange/qemu:
  io: remove io watch if TLS channel is closed during handshake

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-08-01 10:49:16 -07:00
commit a51c070538
2 changed files with 13 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/io/channel-tls.h
View File

@ -48,6 +48,7 @@ struct QIOChannelTLS {
QIOChannel *master; QIOChannel *master;
QCryptoTLSSession *session; QCryptoTLSSession *session;
QIOChannelShutdown shutdown; QIOChannelShutdown shutdown;
guint hs_ioc_tag;
}; };
/** /**

6
io/channel-tls.c
View File

@ -198,6 +198,7 @@ static void qio_channel_tls_handshake_task(QIOChannelTLS *ioc,
} }
trace_qio_channel_tls_handshake_pending(ioc, status); trace_qio_channel_tls_handshake_pending(ioc, status);
ioc->hs_ioc_tag =
qio_channel_add_watch_full(ioc->master, qio_channel_add_watch_full(ioc->master,
condition, condition,
qio_channel_tls_handshake_io, qio_channel_tls_handshake_io,
@ -218,6 +219,7 @@ static gboolean qio_channel_tls_handshake_io(QIOChannel *ioc,
QIOChannelTLS *tioc = QIO_CHANNEL_TLS( QIOChannelTLS *tioc = QIO_CHANNEL_TLS(
qio_task_get_source(task)); qio_task_get_source(task));
tioc->hs_ioc_tag = 0;
g_free(data); g_free(data);
qio_channel_tls_handshake_task(tioc, task, context); qio_channel_tls_handshake_task(tioc, task, context);
@ -378,6 +380,10 @@ static int qio_channel_tls_close(QIOChannel *ioc,
{ {
QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc); QIOChannelTLS *tioc = QIO_CHANNEL_TLS(ioc);
if (tioc->hs_ioc_tag) {
g_clear_handle_id(&tioc->hs_ioc_tag, g_source_remove);
}
return qio_channel_close(tioc->master, errp); return qio_channel_close(tioc->master, errp);
} }