linux-kernel - [mm/mempolicy] 5ef9c2a53c: Kernel_panic-not_syncing:stack-protector:Kernel_stack_is_corrupted_in:mpol_new

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Date:   Sun, 3 Jan 2021 21:34:22 +0800
From:   kernel test robot <oliver.sang@...el.com>
To:     Ben Widawsky <ben.widawsky@...el.com>
Cc:     0day robot <lkp@...el.com>, Ben Widawsky <ben.widawsky@...el.com>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...ts.01.org,
        linux-mm <linux-mm@...ck.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Michal Hocko <mhocko@...nel.org>
Subject: [mm/mempolicy]  5ef9c2a53c:
 Kernel_panic-not_syncing:stack-protector:Kernel_stack_is_corrupted_in:mpol_new_preferred


Greeting,

FYI, we noticed the following commit (built with gcc-9):

commit: 5ef9c2a53c14ed6f0aaa696a04c5d31381eff005 ("[PATCH 04/12] mm/mempolicy: allow preferred code to take a nodemask")
url: https://github.com/0day-ci/linux/commits/Ben-Widawsky/Introduced-multi-preference-mempolicy/20201031-222924
base: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git 5fc6b075e165f641fbc366b58b578055762d5f8c

in testcase: trinity
version: trinity-x86_64-4d2343bd-1_20201007
with following parameters:

	runtime: 300s

test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/


on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+------------------------------------------------------------------------------------------+------------+------------+
|                                                                                          | 006fd7781f | 5ef9c2a53c |
+------------------------------------------------------------------------------------------+------------+------------+
| Kernel_panic-not_syncing:stack-protector:Kernel_stack_is_corrupted_in:mpol_new_preferred | 0          | 10         |
+------------------------------------------------------------------------------------------+------------+------------+


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <oliver.sang@...el.com>


[   93.254954] audit: type=1326 audit(1609487580.227:15): auid=4294967295 uid=65534 gid=65534 ses=4294967295 subj==unconfined pid=1571 comm="trinity-c4" exe="/bin/trinity" sig=9 arch=c000003e syscall=8 compat=0 ip=0x7f3aee712597 code=0x0
[   93.456390] audit: type=1326 audit(1609487580.429:16): auid=4294967295 uid=65534 gid=65534 ses=4294967295 subj==unconfined pid=1657 comm="trinity-c4" exe="/bin/trinity" sig=9 arch=c000003e syscall=8 compat=0 ip=0x7f3aee712597 code=0x0
[   94.475141] [main] 92493 iterations. [F:71179 S:20820 HI:4127 STALLED:1]
[   94.475153] 
[  100.659993] audit: type=1326 audit(1609487587.632:17): auid=4294967295 uid=65534 gid=65534 ses=4294967295 subj==unconfined pid=1740 comm="trinity-c0" exe="/bin/trinity" sig=9 arch=c000003e syscall=8 compat=0 ip=0x7f3aee712597 code=0x0
[  101.703531] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: mpol_new_preferred+0x12f/0x140
[  101.708513] CPU: 1 PID: 1678 Comm: trinity-c7 Not tainted 5.10.0-rc1-00280-g5ef9c2a53c14 #1
[  101.712591] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[  101.716816] Call Trace:
[  101.723732]  dump_stack+0x57/0x6a
[  101.726937]  panic+0x102/0x2d2
[  101.729938]  ? mpol_new_preferred+0x12f/0x140
[  101.733195]  __stack_chk_fail+0x10/0x20
[  101.736256]  mpol_new_preferred+0x12f/0x140
[  101.739874]  do_set_mempolicy+0x68/0x140
[  101.742937]  kernel_set_mempolicy+0x7c/0xa0
[  101.746151]  do_syscall_64+0x33/0x40
[  101.749013]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  101.752279] RIP: 0033:0x7f3aee71bf59
[  101.755238] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 07 6f 0c 00 f7 d8 64 89 01 48
[  101.766139] RSP: 002b:00007fff9ce9f068 EFLAGS: 00000246 ORIG_RAX: 00000000000000ee
[  101.770126] RAX: ffffffffffffffda RBX: 00000000000000ee RCX: 00007f3aee71bf59
[  101.773764] RDX: 0000000000000200 RSI: 00007f3aec7c4000 RDI: 0000000000000001
[  101.777425] RBP: 00000000000000ee R08: 00000000ffffefff R09: 000000000000002f
[  101.781357] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000002
[  101.785035] R13: 00007f3aed0c8058 R14: 00007f3aee6046c0 R15: 00007f3aed0c8000
[  101.788723] Kernel Offset: 0x7200000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)

Kboot worker: lkp-worker31


To reproduce:

        # build kernel
	cd linux
	cp config-5.10.0-rc1-00280-g5ef9c2a53c14 .config
	make HOSTCC=gcc-9 CC=gcc-9 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Oliver Sang


View attachment "config-5.10.0-rc1-00280-g5ef9c2a53c14" of type "text/plain" (171213 bytes)

View attachment "job-script" of type "text/plain" (4511 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (16424 bytes)