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authorJonathan Krebs <jonny@git2022.olpp.net>2023-05-15 13:57:46 +0200
committerDmitry V. Levin <ldv@strace.io>2023-05-17 20:18:03 +0000
commit52e49e17acba24d2a1dd211bae857043c20931f7 (patch)
tree84245e93f34fb2e168de81b1c453cb07c7fb6925 /modules/pam_shells/pam_shells.c
parente75e15c7eea15b3aa48026be209239179b747222 (diff)
downloadlinux-pam-git-master.tar.gz
pam_shells: return PAM_USER_UNKNOWN if getpwnam failsHEADmaster
Until before, in this case PAM_AUTH_ERR was returned. This leads to unknown users being logged with the unknown username. Now it resembles the behaviour of other modules like pam_unix in this case.
Diffstat (limited to 'modules/pam_shells/pam_shells.c')
-rw-r--r--modules/pam_shells/pam_shells.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/modules/pam_shells/pam_shells.c b/modules/pam_shells/pam_shells.c
index abebdd0c..05c09c65 100644
--- a/modules/pam_shells/pam_shells.c
+++ b/modules/pam_shells/pam_shells.c
@@ -61,8 +61,16 @@ static int perform_check(pam_handle_t *pamh)
}
pw = pam_modutil_getpwnam(pamh, userName);
- if (pw == NULL || pw->pw_shell == NULL) {
- return PAM_AUTH_ERR; /* user doesn't exist */
+ if (pw == NULL) {
+ return PAM_USER_UNKNOWN;
+ }
+ if (pw->pw_shell == NULL) {
+ /* TODO: when does this happen? I would join it with
+ * the case userShell[0] == '\0' below.
+ *
+ * For now, keep the existing stricter behaviour
+ */
+ return PAM_AUTH_ERR;
}
userShell = pw->pw_shell;
if (userShell[0] == '\0')