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Fix NULL pointer dereference in spa_open_common()

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Calling spa_open() will pass a NULL pointer to spa_open_common()'s
config parameter. Under the right circumstances, we will dereference the
config parameter without doing a NULL check.

Clang's static analyzer found this.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #14044
This commit is contained in:
Richard Yao 2022-10-16 00:19:13 -04:00 committed by Brian Behlendorf
parent 3146fc7edf
commit 1bd02680c0
1 changed files with 1 additions and 1 deletions
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module/zfs/spa.c
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@ -5267,7 +5267,7 @@ spa_open_common(const char *pool, spa_t **spapp, const void *tag,
* If we've recovered the pool, pass back any information we * If we've recovered the pool, pass back any information we
* gathered while doing the load. * gathered while doing the load.
*/ */
if (state == SPA_LOAD_RECOVER) { if (state == SPA_LOAD_RECOVER && config != NULL) {
fnvlist_add_nvlist(*config, ZPOOL_CONFIG_LOAD_INFO, fnvlist_add_nvlist(*config, ZPOOL_CONFIG_LOAD_INFO,
spa->spa_load_info); spa->spa_load_info);
} }