e7fbd49132
Fixes <http://bugs.gnu.org/26976>. Reported by Mark H Weaver <mhw@netris.org>. * gnu/packages/patches/guile-ssh-double-free.patch: New file. * gnu/local.mk (dist_patch_DATA): Add it. * gnu/packages/ssh.scm (guile-ssh)[source](patches): Add it.
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
Fix a double-free or use-after-free issue with Guile-SSH used
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with Guile 2.2. See <https://bugs.gnu.org/26976>.
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diff --git a/libguile-ssh/channel-type.c b/libguile-ssh/channel-type.c
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index 3dd641f..0839854 100644
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--- a/libguile-ssh/channel-type.c
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+++ b/libguile-ssh/channel-type.c
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@@ -229,10 +229,11 @@ ptob_close (SCM channel)
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ssh_channel_free (ch->ssh_channel);
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}
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+ SCM_SETSTREAM (channel, NULL);
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+
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#if USING_GUILE_BEFORE_2_2
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scm_gc_free (pt->write_buf, pt->write_buf_size, "port write buffer");
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scm_gc_free (pt->read_buf, pt->read_buf_size, "port read buffer");
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- SCM_SETSTREAM (channel, NULL);
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return 0;
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#endif
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diff --git a/libguile-ssh/sftp-file-type.c b/libguile-ssh/sftp-file-type.c
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index 8879924..f87cf03 100644
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--- a/libguile-ssh/sftp-file-type.c
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+++ b/libguile-ssh/sftp-file-type.c
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@@ -224,10 +224,11 @@ ptob_close (SCM sftp_file)
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sftp_close (fd->file);
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}
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+ SCM_SETSTREAM (sftp_file, NULL);
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+
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#if USING_GUILE_BEFORE_2_2
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scm_gc_free (pt->write_buf, pt->write_buf_size, "port write buffer");
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scm_gc_free (pt->read_buf, pt->read_buf_size, "port read buffer");
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- SCM_SETSTREAM (sftp_file, NULL);
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return 1;
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#endif
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