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PAM: Fix uninitialized value read 

Clang's static analyzer found that config.uid is uninitialized when
zfs_key_config_load() returns an error.

Oddly, this was not included in the unchecked return values that
Coverity found.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Closes #13957
This commit is contained in:
Richard Yao 2022-09-27 19:48:35 -04:00 committed by Tony Hutter
parent e11c4327f1
commit 531361114b
1 changed files with 3 additions and 1 deletions
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4
contrib/pam_zfs_key/pam_zfs_key.c
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@ -768,7 +768,9 @@ pam_sm_close_session(pam_handle_t *pamh, int flags,
return (PAM_SUCCESS);
}
zfs_key_config_t config;
zfs_key_config_load(pamh, &config, argc, argv);
if (zfs_key_config_load(pamh, &config, argc, argv) != 0) {
return (PAM_SESSION_ERR);
}
if (config.uid < 1000) {
zfs_key_config_free(&config);
return (PAM_SUCCESS);