parent
ddadda7087
commit
636d04f4f8
@ -0,0 +1,34 @@
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From 8903b94c86c978e8abef623358fd3e4629c06967 Mon Sep 17 00:00:00 2001
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From: Iker Pedrosa <ipedrosa@redhat.com>
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Date: Mon, 9 Sep 2024 10:36:17 +0200
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Subject: [PATCH] useradd: fix write_full() return value
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write_full() returns -1 on error and useradd was checking another value.
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Closes: https://github.com/shadow-maint/shadow/issues/1072
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Fixes: f45498a6c286 ("libmisc/write_full.c: Improve write_full()")
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Reported-by: <https://github.com/brown-midas>
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Suggested-by: <https://github.com/brown-midas>
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Reviewed-by: Alejandro Colomar <alx@kernel.org>
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Reviewed-by: Iker Pedrosa <ipedrosa@redhat.com>
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---
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src/useradd.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/useradd.c b/src/useradd.c
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index 02c500d0..d64fd892 100644
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--- a/src/useradd.c
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+++ b/src/useradd.c
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@@ -2042,7 +2042,7 @@ static void lastlog_reset (uid_t uid)
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return;
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}
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if ( (lseek (fd, offset_uid, SEEK_SET) != offset_uid)
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- || (write_full (fd, &ll, sizeof (ll)) != (ssize_t) sizeof (ll))
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+ || (write_full (fd, &ll, sizeof (ll)) == -1)
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|| (fsync (fd) != 0)) {
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fprintf (stderr,
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_("%s: failed to reset the lastlog entry of UID %lu: %s\n"),
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--
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2.46.0
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