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| author | Pádraig Brady <P@draigBrady.com> | 2016-11-27 15:09:53 +0000 |
|---|---|---|
| committer | Pádraig Brady <P@draigBrady.com> | 2016-11-28 13:19:24 +0000 |
| commit | a39641cbb8f37c5a19dd4820c6f6719c82d3e633 (patch) | |
| tree | ee662cfc8add8265c1de488a9d281eba21c9d8a4 /NEWS | |
| parent | 6f30a99fa537adb029283cf2ef03cb4419350e6c (diff) | |
| download | coreutils-a39641cbb8f37c5a19dd4820c6f6719c82d3e633.tar.xz | |
tac: fix mem corruption when failing to read non seekable inputs
This was detected with ASAN, but can also be seen without ASAN with:
$ tac - - <&-
tac: standard input: read error: Bad file descriptor
*** Error in `tac': malloc(): memory corruption: 0x...
* src/tac.c (copy_to_temp): Don't close our output stream on
(possibly transient) output error, or on input error.
(temp_stream): clearerr() on the stream about to be reused,
to ensure future stream use is not impacted by transient errors.
* tests/misc/tac-2-nonseekable.sh: Add a test case.
* NEWS: Mention the bug fix.
Fixes http://bugs.gnu.org/25041
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -50,6 +50,9 @@ GNU coreutils NEWS -*- outline -*- seq now immediately exits upon write errors. [This bug was present in "the beginning".] + tac no longer crashes when there are issues reading from non-seekable inputs. + [bug introduced in coreutils-8.15] + tail -F now continues to process initially untailable files that are replaced by a tailable file. This was handled correctly when inotify was available, and is now handled correctly in all cases. |