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openSUSE:Leap:15.2:Rings:0-Bootstrap
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ed-style-08-dont-leak-tmp-file-multi.patch
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File ed-style-08-dont-leak-tmp-file-multi.patch of Package patch
From: Jean Delvare <jdelvare@suse.de> Date: Mon, 7 May 2018 15:14:45 +0200 Subject: Don't leak temporary file on failed multi-file ed-style patch Git-commit: 369dcccdfa6336e5a873d6d63705cfbe04c55727 Patch-mainline: yes References: bsc#1092500, savannah#53820 The previous fix worked fine with single-file ed-style patches, but would still leak temporary files in the case of multi-file ed-style patch. Fix that case as well, and extend the test case to check for it. * src/patch.c (main): Unlink TMPEDNAME if needed before moving to the next file in a patch. This closes bug #53820: https://savannah.gnu.org/bugs/index.php?53820 Fixes: 123eaff0d5d1 ("Fix arbitrary command execution in ed-style patches (CVE-2018-1000156)") Fixes: 19599883ffb6 ("Don't leak temporary file on failed ed-style patch") --- src/patch.c | 1 + tests/ed-style | 31 +++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) --- a/src/patch.c +++ b/src/patch.c @@ -236,6 +236,7 @@ main (int argc, char **argv) } remove_if_needed (TMPOUTNAME, &TMPOUTNAME_needs_removal); } + remove_if_needed (TMPEDNAME, &TMPEDNAME_needs_removal); if (! skip_rest_of_patch && ! file_type) { --- a/tests/ed-style +++ b/tests/ed-style @@ -38,3 +38,34 @@ EOF check 'cat foo' <<EOF foo EOF + +# Test the case where one ed-style patch modifies several files + +cat > ed3.diff <<EOF +--- foo ++++ foo +1c +bar +. +--- baz ++++ baz +0a +baz +. +EOF + +# Apparently we can't create a file with such a patch, while it works fine +# when the file name is provided on the command line +cat > baz <<EOF +EOF + +check 'patch -e -i ed3.diff' <<EOF +EOF + +check 'cat foo' <<EOF +bar +EOF + +check 'cat baz' <<EOF +baz +EOF
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