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From: Szabolcs Nagy <>
Subject: [glibc/arm/morello/main] cheri: nptl: Check user provided stack for PCS constraints
Date: Thu, 27 Oct 2022 13:59:49 +0000 (GMT)	[thread overview]
Message-ID: <> (raw);h=c6827cd8b558a4fa191ad285bde4a17efdd758db

commit c6827cd8b558a4fa191ad285bde4a17efdd758db
Author: Carlos Eduardo Seo <>
Date:   Thu Mar 17 20:51:32 2022 -0300

    cheri: nptl: Check user provided stack for PCS constraints
    In pthread_attr_setstack fail with EINVAL if the input stack does not
    meet the PCS constraints.

 nptl/pthread_attr_setstack.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/nptl/pthread_attr_setstack.c b/nptl/pthread_attr_setstack.c
index e08b167df6..a0338c2752 100644
--- a/nptl/pthread_attr_setstack.c
+++ b/nptl/pthread_attr_setstack.c
@@ -19,7 +19,9 @@
 #include <limits.h>
 #include "pthreadP.h"
 #include <shlib-compat.h>
+# include <cheri_perms.h>
 #ifndef NEW_VERNUM
 # define NEW_VERNUM GLIBC_2_3_3
@@ -43,6 +45,11 @@ __pthread_attr_setstack (pthread_attr_t *attr, void *stackaddr,
+  if (!STACK_CAP_CHECK (stackaddr, stacksize))
+    return EINVAL;
   iattr->stacksize = stacksize;
   iattr->stackaddr = (char *) stackaddr + stacksize;

             reply	other threads:[~2022-10-27 13:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-27 13:59 Szabolcs Nagy [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-11-23 14:49 Szabolcs Nagy
2022-10-26 15:21 Szabolcs Nagy
2022-08-05 19:37 Szabolcs Nagy

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