mirror_zfs/cmd/zed
Richard Yao 72c99dc959
Handle possible null pointers from malloc/strdup/strndup()
GCC 12.1.1_p20220625's static analyzer caught these.

Of the two in the btree test, one had previously been caught by Coverity
and Smatch, but GCC flagged it as a false positive. Upon examining how
other test cases handle this, the solution was changed from
`ASSERT3P(node, !=, NULL);` to using `perror()` to be consistent with
the fixes to the other fixes done to the ZTS code.

That approach was also used in ZED since I did not see a better way of
handling this there. Also, upon inspection, additional unchecked
pointers from malloc()/calloc()/strdup() were found in ZED, so those
were handled too.

In other parts of the code, the existing methods to avoid issues from
memory allocators returning NULL were used, such as using
`umem_alloc(size, UMEM_NOFAIL)` or returning `ENOMEM`.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13979
2022-10-06 17:18:40 -07:00
..
agents Handle possible null pointers from malloc/strdup/strndup() 2022-10-06 17:18:40 -07:00
zed.d Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
.gitignore Initial implementation of zed (ZFS Event Daemon) 2014-04-02 13:10:03 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
zed_conf.c Fix usage of zed_log_msg() and zfs_panic_recover() 2022-09-19 17:32:18 -07:00
zed_conf.h Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
zed_disk_event.c Fix usage of zed_log_msg() and zfs_panic_recover() 2022-09-19 17:32:18 -07:00
zed_disk_event.h Bring over illumos ZFS FMA logic -- phase 1 2016-09-01 11:39:45 -07:00
zed_event.c Prevent zevent list from consuming all of kernel memory 2022-08-22 12:36:22 -07:00
zed_event.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_exec.c Handle possible null pointers from malloc/strdup/strndup() 2022-10-06 17:18:40 -07:00
zed_exec.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_file.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_file.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_log.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_log.h Reduce false positives from Static Analyzers 2022-09-30 15:30:12 -07:00
zed_strings.c Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed_strings.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00
zed.c zed: main: fix unused, remove argsused 2021-12-21 12:05:11 -08:00
zed.h Replace ZoL with OpenZFS where applicable 2021-05-07 17:20:37 -07:00