From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752057AbcAAQjU (ORCPT ); Fri, 1 Jan 2016 11:39:20 -0500 Received: from www17.your-server.de ([213.133.104.17]:42695 "EHLO www17.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751718AbcAAQjP (ORCPT ); Fri, 1 Jan 2016 11:39:15 -0500 Message-ID: <1451666349.9687.2.camel@m3y3r.de> Subject: [ACPI] BUG: KASan: out of bounds on stack in vsnprintf From: Thomas Meyer To: rjw@rjwysocki.net, lenb@kernel.org, linux-acpi@vger.kernel.org, Linux Kernel Mailing List Date: Fri, 01 Jan 2016 17:39:09 +0100 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.18.3 (3.18.3-1.fc23) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authenticated-Sender: thomas@m3y3r.de Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, I started to run my kernels with KASan enabled and found this after resume from ram on a 4.3.3 kernel: Jan 01 15:16:59 localhost.localdomain kernel: ================================================================== Jan 01 15:16:59 localhost.localdomain kernel: BUG: KASan: out of bounds on stack in vsnprintf+0x14c4/0x1a00 at addr ffff8800b5957838 Jan 01 15:16:59 localhost.localdomain kernel: Read of size 8 by task systemd-sleep/5375 Jan 01 15:16:59 localhost.localdomain kernel: page:ffffea0002d655c0 count:0 mapcount:0 mapping:          (null) index:0x0 Jan 01 15:17:00 localhost.localdomain kernel: flags: 0x4000000000000000() Jan 01 15:17:01 localhost.localdomain kernel: page dumped because: kasan: bad access detected Jan 01 15:17:01 localhost.localdomain kernel: CPU: 0 PID: 5375 Comm: systemd-sleep Not tainted 4.3.3 #15 Jan 01 15:17:01 localhost.localdomain kernel: Hardware name: Acer Aspire 1810T/JM11-MS, BIOS v1.3310 03/25/2010 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957838 000000006c6dad1e ffff8800b59575f8 ffffffff81937da7 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957680 ffff8800b5957670 ffffffff8143b533 0000000000000002 Jan 01 15:17:01 localhost.localdomain kernel:  0000000000000000 0000000000000046 ffffffff81b12196 0000000300000206 Jan 01 15:17:01 localhost.localdomain kernel: Call Trace: Jan 01 15:17:01 localhost.localdomain kernel:  [] dump_stack+0x4b/0x74 Jan 01 15:17:01 localhost.localdomain kernel:  [] kasan_report_error+0x3b3/0x3e0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_ns_search_and_enter+0xa7/0x3b5 Jan 01 15:17:01 localhost.localdomain kernel:  [] __asan_report_load8_noabort+0x5c/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? vsnprintf+0x14c4/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsnprintf+0x14c4/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? pointer.isra.22+0x980/0x980 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? up+0x70/0xb0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kasan_slab_free+0x44/0x50 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsprintf+0x14/0x20 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_vprintf+0x16/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_printf+0x9e/0xca Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_os_vprintf+0x2b/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_exception+0xb2/0x132 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_bios_warning+0x117/0x117 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_ns_evaluate+0xb3/0x853 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kasan_kmalloc+0x5e/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_get_sleep_type_data+0x549/0x568 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_legacy_wake_prep+0x83/0x227 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_hw_legacy_sleep+0x3bd/0x3bd Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_write_bit_register+0x288/0x2ce Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_read_bit_register+0x196/0x196 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_sleep_dispatch+0xb0/0xb5 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_leave_sleep_state_prep+0x12/0x14 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_suspend_enter+0x10e/0x19a Jan 01 15:17:01 localhost.localdomain kernel:  [] ? trace_suspend_resume+0xe0/0xe0 Jan 01 15:17:01 localhost.localdomain kernel:  [] suspend_devices_and_enter+0x964/0xdf0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? printk+0xa3/0xd3 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? arch_suspend_enable_irqs+0x10/0x10 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] pm_suspend+0x4f9/0x690 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] state_store+0x85/0x90 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kobj_attr_show+0x60/0x60 Jan 01 15:17:01 localhost.localdomain kernel:  [] kobj_attr_store+0x36/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] sysfs_kf_write+0x12c/0x1f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] kernfs_fop_write+0x1f8/0x3a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] __vfs_write+0xea/0x400 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? __vfs_read+0x3f0/0x3f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? handle_mm_fault+0x1579/0x34a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? do_mmap+0x66f/0x900 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? selinux_file_permission+0x2d5/0x430 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? security_file_permission+0x6a/0x1a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? rw_verify_area+0xb7/0x290 Jan 01 15:17:01 localhost.localdomain kernel:  [] vfs_write+0x134/0x4c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] SyS_write+0x112/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? SyS_read+0x240/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] entry_SYSCALL_64_fastpath+0x12/0x6a Jan 01 15:17:01 localhost.localdomain kernel: Memory state around the buggy address: Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957700: 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957780: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 Jan 01 15:17:01 localhost.localdomain kernel: >ffff8800b5957800: 00 f4 f3 f3 f3 f3 f1 f1 f1 f1 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:                                         ^ Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957880: f1 f1 f1 f1 00 00 00 f4 f3 f3 f3 f3 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S0_] Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: BUG: KASan: out of bounds on stack in vsnprintf+0x1902/0x1a00 at addr ffff8800b5957838 Jan 01 15:17:01 localhost.localdomain kernel: Read of size 4 by task systemd-sleep/5375 Jan 01 15:17:01 localhost.localdomain kernel: page:ffffea0002d655c0 count:0 mapcount:0 mapping:          (null) index:0x0 Jan 01 15:17:01 localhost.localdomain kernel: flags: 0x4000000000000000() Jan 01 15:17:01 localhost.localdomain kernel: page dumped because: kasan: bad access detected Jan 01 15:17:01 localhost.localdomain kernel: CPU: 0 PID: 5375 Comm: systemd-sleep Not tainted 4.3.3 #15 Jan 01 15:17:01 localhost.localdomain kernel: Hardware name: Acer Aspire 1810T/JM11-MS, BIOS v1.3310 03/25/2010 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957838 000000006c6dad1e ffff8800b59575f8 ffffffff81937da7 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957680 ffff8800b5957670 ffffffff8143b533 ffff8800b59576f0 Jan 01 15:17:01 localhost.localdomain kernel:  dffffc0000000000 0000000000000046 ffff8800b5957828 ffff8800b5957718 Jan 01 15:17:01 localhost.localdomain kernel: Call Trace: Jan 01 15:17:01 localhost.localdomain kernel:  [] dump_stack+0x4b/0x74 Jan 01 15:17:01 localhost.localdomain kernel:  [] kasan_report_error+0x3b3/0x3e0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? vsnprintf+0x3be/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] __asan_report_load4_noabort+0x5c/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? vsnprintf+0x1902/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsnprintf+0x1902/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? pointer.isra.22+0x980/0x980 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? memcpy+0x36/0x40 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsprintf+0x14/0x20 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_vprintf+0x16/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_printf+0x9e/0xca Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_os_vprintf+0x2b/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_exception+0xf1/0x132 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_bios_warning+0x117/0x117 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_ns_evaluate+0xb3/0x853 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kasan_kmalloc+0x5e/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_get_sleep_type_data+0x549/0x568 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_legacy_wake_prep+0x83/0x227 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_hw_legacy_sleep+0x3bd/0x3bd Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_write_bit_register+0x288/0x2ce Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_read_bit_register+0x196/0x196 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_sleep_dispatch+0xb0/0xb5 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_leave_sleep_state_prep+0x12/0x14 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_suspend_enter+0x10e/0x19a Jan 01 15:17:01 localhost.localdomain kernel:  [] ? trace_suspend_resume+0xe0/0xe0 Jan 01 15:17:01 localhost.localdomain kernel:  [] suspend_devices_and_enter+0x964/0xdf0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? printk+0xa3/0xd3 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? arch_suspend_enable_irqs+0x10/0x10 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] pm_suspend+0x4f9/0x690 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] state_store+0x85/0x90 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kobj_attr_show+0x60/0x60 Jan 01 15:17:01 localhost.localdomain kernel:  [] kobj_attr_store+0x36/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] sysfs_kf_write+0x12c/0x1f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] kernfs_fop_write+0x1f8/0x3a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] __vfs_write+0xea/0x400 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? __vfs_read+0x3f0/0x3f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? handle_mm_fault+0x1579/0x34a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? do_mmap+0x66f/0x900 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? selinux_file_permission+0x2d5/0x430 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? security_file_permission+0x6a/0x1a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? rw_verify_area+0xb7/0x290 Jan 01 15:17:01 localhost.localdomain kernel:  [] vfs_write+0x134/0x4c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] SyS_write+0x112/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? SyS_read+0x240/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] entry_SYSCALL_64_fastpath+0x12/0x6a Jan 01 15:17:01 localhost.localdomain kernel: Memory state around the buggy address: Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957700: 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957780: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 Jan 01 15:17:01 localhost.localdomain kernel: >ffff8800b5957800: 00 f4 f3 f3 f3 f3 f1 f1 f1 f1 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:                                         ^ Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957880: f1 f1 f1 f1 00 00 00 f4 f3 f3 f3 f3 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: BUG: KASan: out of bounds on stack in vsnprintf+0x14c4/0x1a00 at addr ffff8800b5957840 Jan 01 15:17:01 localhost.localdomain kernel: Read of size 8 by task systemd-sleep/5375 Jan 01 15:17:01 localhost.localdomain kernel: page:ffffea0002d655c0 count:0 mapcount:0 mapping:          (null) index:0x0 Jan 01 15:17:01 localhost.localdomain kernel: flags: 0x4000000000000000() Jan 01 15:17:01 localhost.localdomain kernel: page dumped because: kasan: bad access detected Jan 01 15:17:01 localhost.localdomain kernel: CPU: 0 PID: 5375 Comm: systemd-sleep Not tainted 4.3.3 #15 Jan 01 15:17:01 localhost.localdomain kernel: Hardware name: Acer Aspire 1810T/JM11-MS, BIOS v1.3310 03/25/2010 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957840 000000006c6dad1e ffff8800b59575f8 ffffffff81937da7 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957680 ffff8800b5957670 ffffffff8143b533 0000000000000008 Jan 01 15:17:01 localhost.localdomain kernel:  dffffc0000000000 0000000000000046 ffffed0016b2af10 0000000041b58ab3 Jan 01 15:17:01 localhost.localdomain kernel: Call Trace: Jan 01 15:17:01 localhost.localdomain kernel:  [] dump_stack+0x4b/0x74 Jan 01 15:17:01 localhost.localdomain kernel:  [] kasan_report_error+0x3b3/0x3e0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? dentry_name.isra.13+0x720/0x720 Jan 01 15:17:01 localhost.localdomain kernel:  [] __asan_report_load8_noabort+0x5c/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? vsnprintf+0x14c4/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsnprintf+0x14c4/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? pointer.isra.22+0x980/0x980 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? memcpy+0x36/0x40 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsprintf+0x14/0x20 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_vprintf+0x16/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_printf+0x9e/0xca Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_os_vprintf+0x2b/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_exception+0xf1/0x132 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_bios_warning+0x117/0x117 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_ns_evaluate+0xb3/0x853 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kasan_kmalloc+0x5e/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_get_sleep_type_data+0x549/0x568 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_legacy_wake_prep+0x83/0x227 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_hw_legacy_sleep+0x3bd/0x3bd Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_write_bit_register+0x288/0x2ce Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_read_bit_register+0x196/0x196 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_sleep_dispatch+0xb0/0xb5 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_leave_sleep_state_prep+0x12/0x14 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_suspend_enter+0x10e/0x19a Jan 01 15:17:01 localhost.localdomain kernel:  [] ? trace_suspend_resume+0xe0/0xe0 Jan 01 15:17:01 localhost.localdomain kernel:  [] suspend_devices_and_enter+0x964/0xdf0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? printk+0xa3/0xd3 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? arch_suspend_enable_irqs+0x10/0x10 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] pm_suspend+0x4f9/0x690 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] state_store+0x85/0x90 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kobj_attr_show+0x60/0x60 Jan 01 15:17:01 localhost.localdomain kernel:  [] kobj_attr_store+0x36/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] sysfs_kf_write+0x12c/0x1f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] kernfs_fop_write+0x1f8/0x3a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] __vfs_write+0xea/0x400 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? __vfs_read+0x3f0/0x3f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? handle_mm_fault+0x1579/0x34a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? do_mmap+0x66f/0x900 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? selinux_file_permission+0x2d5/0x430 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? security_file_permission+0x6a/0x1a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? rw_verify_area+0xb7/0x290 Jan 01 15:17:01 localhost.localdomain kernel:  [] vfs_write+0x134/0x4c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] SyS_write+0x112/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? SyS_read+0x240/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] entry_SYSCALL_64_fastpath+0x12/0x6a Jan 01 15:17:01 localhost.localdomain kernel: Memory state around the buggy address: Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957700: 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957780: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 Jan 01 15:17:01 localhost.localdomain kernel: >ffff8800b5957800: 00 f4 f3 f3 f3 f3 f1 f1 f1 f1 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:                                            ^ Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957880: f1 f1 f1 f1 00 00 00 f4 f3 f3 f3 f3 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel: BUG: KASan: out of bounds on stack in vsnprintf+0x1902/0x1a00 at addr ffff8800b5957848 Jan 01 15:17:01 localhost.localdomain kernel: Read of size 4 by task systemd-sleep/5375 Jan 01 15:17:01 localhost.localdomain kernel: page:ffffea0002d655c0 count:0 mapcount:0 mapping:          (null) index:0x0 Jan 01 15:17:01 localhost.localdomain kernel: flags: 0x4000000000000000() Jan 01 15:17:01 localhost.localdomain kernel: page dumped because: kasan: bad access detected Jan 01 15:17:01 localhost.localdomain kernel: CPU: 0 PID: 5375 Comm: systemd-sleep Not tainted 4.3.3 #15 Jan 01 15:17:01 localhost.localdomain kernel: Hardware name: Acer Aspire 1810T/JM11-MS, BIOS v1.3310 03/25/2010 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957848 000000006c6dad1e ffff8800b59575f8 ffffffff81937da7 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957680 ffff8800b5957670 ffffffff8143b533 0000000000000010 Jan 01 15:17:01 localhost.localdomain kernel:  dffffc0000000000 0000000000000046 ffffed0016b2af08 6666662041b58ab3 Jan 01 15:17:01 localhost.localdomain kernel: Call Trace: Jan 01 15:17:01 localhost.localdomain kernel:  [] dump_stack+0x4b/0x74 Jan 01 15:17:01 localhost.localdomain kernel:  [] kasan_report_error+0x3b3/0x3e0 Jan 01 15:17:01 localhost.localdomain kernel:  [] __asan_report_load4_noabort+0x5c/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? vsnprintf+0x1902/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsnprintf+0x1902/0x1a00 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? pointer.isra.22+0x980/0x980 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? memcpy+0x36/0x40 Jan 01 15:17:01 localhost.localdomain kernel:  [] vsprintf+0x14/0x20 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_vprintf+0x16/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_os_printf+0x9e/0xca Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_os_vprintf+0x2b/0x2b Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_exception+0xf1/0x132 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_bios_warning+0x117/0x117 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_ns_evaluate+0xb3/0x853 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kasan_kmalloc+0x5e/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_get_sleep_type_data+0x549/0x568 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_legacy_wake_prep+0x83/0x227 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_hw_legacy_sleep+0x3bd/0x3bd Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_write_bit_register+0x288/0x2ce Jan 01 15:17:01 localhost.localdomain kernel:  [] ? acpi_read_bit_register+0x196/0x196 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_hw_sleep_dispatch+0xb0/0xb5 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_leave_sleep_state_prep+0x12/0x14 Jan 01 15:17:01 localhost.localdomain kernel:  [] acpi_suspend_enter+0x10e/0x19a Jan 01 15:17:01 localhost.localdomain kernel:  [] ? trace_suspend_resume+0xe0/0xe0 Jan 01 15:17:01 localhost.localdomain kernel:  [] suspend_devices_and_enter+0x964/0xdf0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? printk+0xa3/0xd3 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? arch_suspend_enable_irqs+0x10/0x10 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] pm_suspend+0x4f9/0x690 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? sysfs_kf_bin_read+0x2c0/0x2c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] state_store+0x85/0x90 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? kobj_attr_show+0x60/0x60 Jan 01 15:17:01 localhost.localdomain kernel:  [] kobj_attr_store+0x36/0x70 Jan 01 15:17:01 localhost.localdomain kernel:  [] sysfs_kf_write+0x12c/0x1f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] kernfs_fop_write+0x1f8/0x3a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] __vfs_write+0xea/0x400 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? __vfs_read+0x3f0/0x3f0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? handle_mm_fault+0x1579/0x34a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? do_mmap+0x66f/0x900 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? selinux_file_permission+0x2d5/0x430 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? security_file_permission+0x6a/0x1a0 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? rw_verify_area+0xb7/0x290 Jan 01 15:17:01 localhost.localdomain kernel:  [] vfs_write+0x134/0x4c0 Jan 01 15:17:01 localhost.localdomain kernel:  [] SyS_write+0x112/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] ? SyS_read+0x240/0x240 Jan 01 15:17:01 localhost.localdomain kernel:  [] entry_SYSCALL_64_fastpath+0x12/0x6a Jan 01 15:17:01 localhost.localdomain kernel: Memory state around the buggy address: Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957700: 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957780: 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 Jan 01 15:17:01 localhost.localdomain kernel: >ffff8800b5957800: 00 f4 f3 f3 f3 f3 f1 f1 f1 f1 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:                                               ^ Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957880: f1 f1 f1 f1 00 00 00 f4 f3 f3 f3 f3 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel:  ffff8800b5957900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Jan 01 15:17:01 localhost.localdomain kernel: ================================================================== Jan 01 15:17:01 localhost.localdomain kernel:  (20150818/hwxface-580) Jan 01 15:17:01 localhost.localdomain kernel: ACPI : EC: EC started Jan 01 15:17:01 localhost.localdomain kernel: PM: Restoring platform NVS memory