From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: lkp@lists.01.org
Subject: Re: [lkp-robot] [ACPI] c793ed7ccf: BUG:KASAN:stack-out-of-bounds
Date: Wed, 07 Jun 2017 12:34:59 +0300 [thread overview]
Message-ID: <1496828099.22624.36.camel@linux.intel.com> (raw)
In-Reply-To: <20170607020804.GG2969@yexl-desktop>
[-- Attachment #1: Type: text/plain, Size: 7866 bytes --]
On Wed, 2017-06-07 at 10:08 +0800, kernel test robot wrote:
> FYI, we noticed the following commit:
>
> commit: c793ed7ccf42ff8dba7863eb4568b9e59f232251 ("ACPI: Switch to use
> generic guid_t in acpi_evaluate_dsm()")
> git://git.infradead.org/users/hch/uuid.git acpi
I think the below might fix the issue (it looks like related to gcc bug)
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -638,7 +638,7 @@ acpi_evaluate_dsm(acpi_handle handle, const guid_t
*guid, u64 rev, u64 func,
params[0].type = ACPI_TYPE_BUFFER;
params[0].buffer.length = 16;
- params[0].buffer.pointer = (u8 *)&guid;
+ params[0].buffer.pointer = (u8 *)guid;
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = rev;
params[2].type = ACPI_TYPE_INTEGER;
>
> in testcase: boot
>
> on test machine: qemu-system-x86_64 -enable-kvm -smp 2 -m 512M
>
> caused below changes (please refer to attached dmesg/kmsg for entire
> log/backtrace):
>
>
> +-------------------------------+------------+------------+
> > | b7fe92999a | c793ed7ccf |
>
> +-------------------------------+------------+------------+
> > boot_successes | 33 | 0 |
> > boot_failures | 0 | 6 |
> > BUG:KASAN:stack-out-of-bounds | 0 | 6 |
>
> +-------------------------------+------------+------------+
>
>
>
> [ 0.615801] BUG: KASAN: stack-out-of-bounds in
> acpi_ut_copy_eobject_to_iobject+0x249/0x2c5
> [ 0.618496] Read of size 16 at addr ffff8800191d7330 by task
> swapper/0/1
> [ 0.620332]
> [ 0.621292] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc4-
> 00028-gc793ed7 #1
> [ 0.623852] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
> [ 0.626859] Call Trace:
> [ 0.627990] dump_stack+0x61/0x7d
> [ 0.629265] print_address_description+0x70/0x22a
> [ 0.630765] kasan_report+0x1d1/0x1f1
> [ 0.632083] ? __kmalloc+0x30/0x131
> [ 0.633383] ? acpi_ut_copy_eobject_to_iobject+0x249/0x2c5
> [ 0.635005] check_memory_region+0x12b/0x130
> [ 0.636432] memcpy+0x23/0x4c
> [ 0.637650] acpi_ut_copy_eobject_to_iobject+0x249/0x2c5
> [ 0.639251] acpi_evaluate_object+0x1f4/0x3eb
> [ 0.640693] ? acpi_ns_get_device_callback+0x2b7/0x2b7
> [ 0.642257] ? lock_release+0x268/0x2d2
> [ 0.643606] acpi_evaluate_dsm+0x149/0x1a7
> [ 0.645001] ? acpi_evaluate_lck+0x5a/0x5a
> [ 0.646401] ? do_raw_spin_unlock+0xbf/0xc9
> [ 0.647823] ? refcount_sub_and_test+0x15/0x5d
> [ 0.649287] ? kobject_put+0x44/0x53
> [ 0.650590] ? put_device+0x12/0x14
> [ 0.651876] ? __raw_spin_lock_init+0x66/0x70
> [ 0.653326] acpi_pci_add_bus+0x9f/0xf1
> [ 0.654682] pcibios_add_bus+0x9/0xb
> [ 0.655982] pci_register_host_bridge+0x487/0x6fc
> [ 0.657487] ? kasan_unpoison_shadow+0x14/0x35
> [ 0.658932] ? pci_bus_insert_busn_res+0x1d0/0x1d0
> [ 0.660440] ? kasan_kmalloc+0x94/0xa3
> [ 0.661786] ? __kmalloc+0x11e/0x131
> [ 0.663089] pci_create_root_bus_msi+0x146/0x178
> [ 0.664578] pci_create_root_bus+0xc/0xe
> [ 0.665948] acpi_pci_root_create+0x25b/0x2d2
> [ 0.667401] ? kasan_kmalloc+0x94/0xa3
> [ 0.668741] pci_acpi_scan_root+0x229/0x26b
> [ 0.670149] acpi_pci_root_add+0x413/0x57e
> [ 0.671561] ? acpi_pci_root_release_info+0xaf/0xaf
> [ 0.673081] ? lock_release+0x268/0x2d2
> [ 0.674446] ? __device_attach+0x135/0x15e
> [ 0.675837] ? acpi_match_device_ids+0xb/0x16
> [ 0.677290] ? acpi_bus_get_status_handle+0x2a/0x36
> [ 0.678801] ? acpi_bus_get_status+0x9e/0xcb
> [ 0.680224] ? acpi_scan_match_handler+0x79/0xb5
> [ 0.681716] acpi_bus_attach+0x1f7/0x339
> [ 0.683078] ? acpi_device_is_present+0x2d/0x2d
> [ 0.684555] ? mutex_unlock+0xd/0xf
> [ 0.685838] ? __device_attach+0x135/0x15e
> [ 0.687228] ? device_bind_driver+0x6d/0x6d
> [ 0.688633] ? strcmp+0x27/0x4a
> [ 0.689857] acpi_bus_attach+0x287/0x339
> [ 0.691213] ? acpi_device_is_present+0x2d/0x2d
> [ 0.692678] ? mutex_unlock+0xd/0xf
> [ 0.693970] ? __device_attach+0x135/0x15e
> [ 0.695372] ? device_bind_driver+0x6d/0x6d
> [ 0.696776] ? strcmp+0x27/0x4a
> [ 0.698017] acpi_bus_attach+0x287/0x339
> [ 0.699381] ? do_raw_spin_unlock+0xbf/0xc9
> [ 0.700786] ? acpi_device_is_present+0x2d/0x2d
> [ 0.702266] ? up+0x53/0x5a
> [ 0.703435] ? acpi_os_signal_semaphore+0x27/0x33
> [ 0.704926] ? acpi_ut_release_read_lock+0x6b/0x75
> [ 0.706447] ? acpi_add_single_object+0xa03/0xa03
> [ 0.707929] ? acpi_walk_namespace+0xb6/0xd0
> [ 0.709356] acpi_bus_scan+0x9d/0xc5
> [ 0.710673] ? acpi_walk_dep_device_list+0x177/0x177
> [ 0.712221] acpi_scan_init+0x1f8/0x4fc
> [ 0.713571] ? acpi_match_madt+0xea/0xea
> [ 0.714934] ? refcount_dec_and_test+0x11/0x13
> [ 0.716397] ? kobject_put+0x44/0x53
> [ 0.717710] ? bus_put+0x29/0x2c
> [ 0.718956] ? bus_create_file+0x4b/0x57
> [ 0.720328] ? bus_register+0x36b/0x389
> [ 0.721681] acpi_init+0x5e0/0x67c
> [ 0.722952] ? acpi_sleep_init+0x2b7/0x2b7
> [ 0.724358] ? do_raw_spin_unlock+0xbf/0xc9
> [ 0.725765] ? _raw_spin_unlock_irqrestore+0x2f/0x3b
> [ 0.727319] ? add_device_randomness+0xcc/0xe7
> [ 0.728764] ? __class_create+0x87/0xb0
> [ 0.730113] ? video_setup+0x189/0x189
> [ 0.731454] ? acpi_sleep_init+0x2b7/0x2b7
> [ 0.732848] do_one_initcall+0x12d/0x2c7
> [ 0.734221] ? start_kernel+0x5bd/0x5bd
> [ 0.735571] ? do_raw_spin_unlock+0x9f/0xc9
> [ 0.736978] ? _raw_spin_unlock_irqrestore+0x2f/0x3b
> [ 0.738535] kernel_init_freeable+0x217/0x35c
> [ 0.739968] ? rest_init+0xd1/0xd1
> [ 0.741263] kernel_init+0xc/0x100
> [ 0.742540] ? rest_init+0xd1/0xd1
> [ 0.743808] ret_from_fork+0x25/0x30
> [ 0.745114]
> [ 0.746065] The buggy address belongs to the page:
> [ 0.747592] page:ffffea00006475c0 count:0 mapcount:0
> mapping: (null) index:0x0
> [ 0.750243] flags: 0x100000000000000()
> [ 0.751581] raw: 0100000000000000 0000000000000000 0000000000000000
> 00000000ffffffff
> [ 0.754180] raw: ffffea00006475e0 ffffea00006475e0 0000000000000000
> 0000000000000000
> [ 0.756781] page dumped because: kasan: bad access detected
> [ 0.758427]
> [ 0.759380] Memory state around the buggy address:
> [ 0.760884] ffff8800191d7200: 00 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00
> [ 0.778503] ffff8800191d7280: 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3
> f3 f3 00 00
>
>
> To reproduce:
>
> git clone https://github.com/01org/lkp-tests.git
> cd lkp-tests
> bin/lkp qemu -k <bzImage> job-script # job-script is attached
> in this email
>
>
>
> Thanks,
> Xiaolong
--
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
prev parent reply other threads:[~2017-06-07 9:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-07 2:08 [lkp-robot] [ACPI] c793ed7ccf: BUG:KASAN:stack-out-of-bounds kernel test robot
2017-06-07 9:34 ` Andy Shevchenko [this message]
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