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Merge branch 'giochannel-check' into 'master'

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giochannel: Fix length_size bounds check

Closes #2323

See merge request GNOME/glib!1931
This commit is contained in:
Sebastian Dröge 2021-02-08 11:06:59 +00:00
commit 203e078fdf
2 changed files with 6 additions and 4 deletions
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4
glib/giochannel.c
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@ -899,13 +899,13 @@ g_io_channel_set_line_term (GIOChannel *channel,
{
/* FIXME: We’re constrained by line_term_len being a guint here */
gsize length_size = strlen (line_term);
g_return_if_fail (length_size > G_MAXUINT);
g_return_if_fail (length_size <= G_MAXUINT);
length_unsigned = (guint) length_size;
}
g_free (channel->line_term);
channel->line_term = line_term ? g_memdup2 (line_term, length_unsigned) : NULL;
channel->line_term_len = length;
channel->line_term_len = length_unsigned;
}
/**

6
glib/tests/io-channel.c
View File

@ -49,8 +49,10 @@ test_read_line_embedded_nuls (void)
channel = g_io_channel_new_file (filename, "r", &local_error);
g_assert_no_error (local_error);
/* Only break on newline characters, not nuls. */
g_io_channel_set_line_term (channel, "\n", 1);
/* Only break on newline characters, not nuls.
* Use length -1 here to exercise glib#2323; the case where length > 0
* is covered in glib/tests/protocol.c. */
g_io_channel_set_line_term (channel, "\n", -1);
g_io_channel_set_encoding (channel, NULL, &local_error);
g_assert_no_error (local_error);