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File _service:tar_scm_kernel_repo:backport-Change-to-strncat.patch of Package shadow
From 9560152f1bdae02b072b54ea65d1e686ebd46e5f Mon Sep 17 00:00:00 2001 From: Steve Grubb <sgrubb@redhat.com> Date: Fri, 18 Mar 2022 15:35:02 -0400 Subject: [PATCH] Change to strncat ut_line is declared as a nonstring in bits/utmp.h. It might not be NUL terminated. Limit how much it copies to the size of the array. Reference: https://github.com/shadow-maint/shadow/commit/4f393a5f9fd9168c91225ae1b39843fc90372c74 Conflict: NA --- src/logoutd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/logoutd.c b/src/logoutd.c index 780c29f..06c12c6 100644 --- a/src/logoutd.c +++ b/src/logoutd.c @@ -250,7 +250,7 @@ int main (int argc, char **argv) tty_name[0] = '\0'; } - strcat (tty_name, ut->ut_line); + strncat (tty_name, ut->ut_line, UT_LINESIZE); #ifndef O_NOCTTY #define O_NOCTTY 0 #endif -- 2.33.0
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