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From: Li Wang <liwang@redhat.com>
To: linuxram@us.ibm.com, mpe@ellerman.id.au
Cc: Jan Stancek <jstancek@redhat.com>,
	ltp@lists.linux.it, linux-mm@kvack.org
Subject: [bug?] Access was denied by memory protection keys in execute-only address
Date: Wed, 7 Mar 2018 16:09:06 +0800	[thread overview]
Message-ID: <CAEemH2f0LDqyR5AmUYv17OuBc5-UycckDPWgk46XU_ghQo4diw@mail.gmail.com> (raw)

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Hi,

ltp/mprotect04[1] crashed by SEGV_PKUERR on ppc64(LPAR on P730, Power 8
8247-22L) with kernel-v4.16.0-rc4.

10000000-10020000 r-xp 00000000 fd:00 167223           mprotect04
10020000-10030000 r--p 00010000 fd:00 167223           mprotect04
10030000-10040000 rw-p 00020000 fd:00 167223           mprotect04
1001a380000-1001a3b0000 rw-p 00000000 00:00 0          [heap]
7fffa6c60000-7fffa6c80000 --xp 00000000 00:00 0 ​

​&exec_func = 0x10030170​

​&func = 0x7fffa6c60170​

​While perform ​
"(*func)();" we get the
​segmentation fault.
​

​strace log:​

-------------------
​mprotect(0x7fffaed00000, 131072, PROT_EXEC) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_PKUERR, si_addr=0x7fffaed00170}
---​



[1]
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/mprotect/mprotect04.c
​

-- 
Li Wang
liwang@redhat.com

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WARNING: multiple messages have this Message-ID (diff)
From: Li Wang <liwang@redhat.com>
To: ltp@lists.linux.it
Subject: [LTP] [bug?] Access was denied by memory protection keys in execute-only address
Date: Wed, 7 Mar 2018 16:09:06 +0800	[thread overview]
Message-ID: <CAEemH2f0LDqyR5AmUYv17OuBc5-UycckDPWgk46XU_ghQo4diw@mail.gmail.com> (raw)

Hi,

ltp/mprotect04[1] crashed by SEGV_PKUERR on ppc64(LPAR on P730, Power 8
8247-22L) with kernel-v4.16.0-rc4.

10000000-10020000 r-xp 00000000 fd:00 167223           mprotect04
10020000-10030000 r--p 00010000 fd:00 167223           mprotect04
10030000-10040000 rw-p 00020000 fd:00 167223           mprotect04
1001a380000-1001a3b0000 rw-p 00000000 00:00 0          [heap]
7fffa6c60000-7fffa6c80000 --xp 00000000 00:00 0 ​

​&exec_func = 0x10030170​

​&func = 0x7fffa6c60170​

​While perform ​
"(*func)();" we get the
​segmentation fault.
​

​strace log:​

-------------------
​mprotect(0x7fffaed00000, 131072, PROT_EXEC) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_PKUERR, si_addr=0x7fffaed00170}
---​



[1]
https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/mprotect/mprotect04.c
​

-- 
Li Wang
liwang@redhat.com
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             reply	other threads:[~2018-03-07  8:09 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-07  8:09 Li Wang [this message]
2018-03-07  8:09 ` [LTP] [bug?] Access was denied by memory protection keys in execute-only address Li Wang
2018-03-08  0:43 ` Ram Pai
2018-03-08  0:43   ` [LTP] " Ram Pai
2018-03-08  3:38   ` Li Wang
2018-03-08  3:38     ` [LTP] " Li Wang
2018-03-08 12:19 ` Michael Ellerman
2018-03-08 12:19   ` [LTP] " Michael Ellerman
2018-03-08 12:19   ` Michael Ellerman
2018-03-08 16:45   ` Ram Pai
2018-03-08 16:45     ` [LTP] " Ram Pai
2018-03-08 16:45     ` Ram Pai
2018-03-09  3:43     ` Li Wang
2018-03-09  3:43       ` [LTP] " Li Wang
2018-03-09  5:50       ` Ram Pai
2018-03-09  5:50         ` [LTP] " Ram Pai
2018-03-09  5:50         ` Ram Pai
2018-03-20 21:58       ` Ram Pai
2018-03-20 21:58         ` [LTP] " Ram Pai
2018-03-20 21:58         ` Ram Pai
2018-03-21  6:53         ` Li Wang
2018-03-21  6:53           ` [LTP] " Li Wang
2018-03-22  7:09           ` Ram Pai
2018-03-22  7:09             ` [LTP] " Ram Pai
2018-03-22  7:09             ` Ram Pai
2018-03-23  9:27             ` Li Wang
2018-03-23  9:27               ` [LTP] " Li Wang
2018-03-24  0:44               ` Ram Pai
2018-03-24  0:44                 ` [LTP] " Ram Pai
2018-03-24  0:44                 ` Ram Pai

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