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_service:tar_scm_kernel_repo:newgrp-fix-segment...
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File _service:tar_scm_kernel_repo:newgrp-fix-segmentation-fault.patch of Package shadow
From 497e90751bc0d95cc998b0f06305040563903948 Mon Sep 17 00:00:00 2001 From: Iker Pedrosa <ipedrosa@redhat.com> Date: Wed, 10 Nov 2021 12:02:04 +0100 Subject: [PATCH] newgrp: fix segmentation fault Fix segmentation fault in newgrp when xgetspnam() returns a NULL value that is immediately freed. The error was committed in https://github.com/shadow-maint/shadow/commit/e65cc6aebcb4132fa413f00a905216a5b35b3d57 Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2019553 Signed-off-by: Iker Pedrosa <ipedrosa@redhat.com> --- src/newgrp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/newgrp.c b/src/newgrp.c index 730f47e..566f1c8 100644 --- a/src/newgrp.c +++ b/src/newgrp.c @@ -163,8 +163,8 @@ static void check_perms (const struct group *grp, spwd = xgetspnam (pwd->pw_name); if (NULL != spwd) { pwd->pw_passwd = xstrdup (spwd->sp_pwdp); + spw_free (spwd); } - spw_free (spwd); if ((pwd->pw_passwd[0] == '\0') && (grp->gr_passwd[0] != '\0')) { needspasswd = true; -- 1.8.3.1
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