| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20191208154020.GK32275@shao2-debian>
Date: Sun, 8 Dec 2019 23:40:20 +0800
From: kernel test robot <rong.a.chen@...el.com>
To: Logan Gunthorpe <logang@...tatee.com>
Cc: Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
LKML <linux-kernel@...r.kernel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
lkp@...ts.01.org
Subject: [block] 48d9b0d431: BUG:kernel_NULL_pointer_dereference,address
FYI, we noticed the following commit (built with gcc-7):
commit: 48d9b0d43105e0da2b7c135eedd24e51234fb5e4 ("block: account statistics for passthrough requests")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
in testcase: rcuperf
with following parameters:
runtime: 300s
perf_type: tasks
on test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 8G
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
+-------------------------------------------------------+------------+------------+
| | 8148f0b564 | 48d9b0d431 |
+-------------------------------------------------------+------------+------------+
| boot_successes | 8 | 0 |
| boot_failures | 0 | 8 |
| BUG:kernel_NULL_pointer_dereference,address | 0 | 8 |
| Oops:#[##] | 0 | 8 |
| EIP:blk_account_io_completion | 0 | 8 |
| EIP:ide_output_data | 0 | 8 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 8 |
+-------------------------------------------------------+------------+------------+
If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>
[ 14.392111] BUG: kernel NULL pointer dereference, address: 000002ac
[ 14.392607] #PF: supervisor write access in kernel mode
[ 14.392607] #PF: error_code(0x0002) - not-present page
[ 14.392607] *pde = 00000000
[ 14.392607] Oops: 0002 [#1]
[ 14.392607] CPU: 0 PID: 237 Comm: kworker/0:1H Not tainted 5.4.0-rc2-00011-g48d9b0d43105e #1
[ 14.392607] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 14.392607] Workqueue: kblockd drive_rq_insert_work
[ 14.392607] EIP: blk_account_io_completion+0x7a/0xf0
[ 14.392607] Code: 89 54 24 08 31 d2 89 4c 24 04 31 c9 c7 04 24 02 00 00 00 c1 ee 09 e8 f5 21 a6 ff e8 70 5c a7 ff 8b 53 60 8d 04 bd 00 00 00 00 <01> b4 02 ac 02 00 00 8b 9a 88 02 00 00 85 db 74 11 85 d2 74 51 8b
[ 14.392607] EAX: 00000000 EBX: f5b80000 ECX: 00000000 EDX: 00000000
[ 14.392607] ESI: 00000000 EDI: 00000000 EBP: f3031e70 ESP: f3031e54
[ 14.392607] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010046
[ 14.392607] CR0: 80050033 CR2: 000002ac CR3: 03c25000 CR4: 000406d0
[ 14.392607] Call Trace:
[ 14.392607] <IRQ>
[ 14.392607] ? blk_account_io_completion+0x38/0xf0
[ 14.392607] blk_update_request+0x85/0x420
[ 14.392607] ? _raw_spin_unlock_irqrestore+0x4f/0x60
[ 14.392607] ? trace_hardirqs_off+0xca/0xe0
[ 14.392607] ? _raw_spin_unlock_irqrestore+0x4f/0x60
[ 14.392607] ? complete+0x41/0x50
[ 14.392607] ide_end_rq+0x38/0xa0
[ 14.392607] ide_complete_rq+0x3d/0x70
[ 14.392607] cdrom_newpc_intr+0x258/0xba0
[ 14.392607] ? find_held_lock+0x2f/0xa0
[ 14.392607] ? cdrom_analyze_sense_data+0x1b0/0x1b0
[ 14.392607] ide_intr+0x135/0x250
[ 14.392607] __handle_irq_event_percpu+0x3e/0x250
[ 14.392607] handle_irq_event_percpu+0x1f/0x50
[ 14.392607] handle_irq_event+0x32/0x60
[ 14.392607] ? handle_fasteoi_irq+0x160/0x160
[ 14.392607] handle_level_irq+0x6c/0x110
[ 14.392607] handle_irq+0x72/0xa0
[ 14.392607] </IRQ>
[ 14.392607] do_IRQ+0x45/0xad
[ 14.392607] common_interrupt+0x115/0x11c
[ 14.392607] EIP: ide_output_data+0xb7/0x140
[ 14.392607] Code: 00 00 00 0f b7 03 66 89 07 83 c3 02 39 d3 75 f3 83 c4 14 5b 5e 5f 5d c3 8d 76 00 8b 4d ec d1 e9 80 7d f0 00 75 15 89 de 89 fa <f3> 66 6f 83 c4 14 5b 5e 5f 5d c3 8d b6 00 00 00 00 85 c9 74 ee 49
[ 14.392607] EAX: 00000000 EBX: f5b800ac ECX: 00000000 EDX: 00000170
[ 14.392607] ESI: f5b800b8 EDI: 00000170 EBP: f6a57dac ESP: f6a57d8c
[ 14.392607] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010246
[ 14.392607] ? print_usage_bug+0x9b/0x1f0
[ 14.392607] ? ide_output_data+0xb7/0x140
[ 14.392607] ? ide_set_handler+0x42/0x50
[ 14.392607] ide_transfer_pc+0x11c/0x2a0
[ 14.392607] ? ide_check_atapi_device+0x130/0x130
[ 14.392607] ? ide_pc_intr+0x3d0/0x3d0
[ 14.392607] ide_issue_pc+0x160/0x250
[ 14.392607] ? ide_check_atapi_device+0x130/0x130
[ 14.392607] ide_cd_do_request+0x18e/0x3d0
[ 14.392607] ide_issue_rq+0x13a/0x6a0
[ 14.392607] ? _raw_spin_unlock_irq+0x22/0x30
[ 14.392607] ? lockdep_hardirqs_on+0xe4/0x190
[ 14.392607] ? _raw_spin_unlock_irq+0x22/0x30
[ 14.392607] ? trace_hardirqs_on+0x38/0xe0
[ 14.392607] ? drive_rq_insert_work+0x7a/0xf0
[ 14.392607] drive_rq_insert_work+0x8a/0xf0
[ 14.392607] process_one_work+0x207/0x500
[ 14.392607] ? process_one_work+0x16b/0x500
[ 14.392607] worker_thread+0x39/0x400
[ 14.392607] kthread+0xee/0x110
[ 14.392607] ? process_one_work+0x500/0x500
[ 14.392607] ? kthread_create_on_node+0x30/0x30
[ 14.392607] ret_from_fork+0x1e/0x28
[ 14.392607] Modules linked in:
[ 14.392607] CR2: 00000000000002ac
[ 14.392607] ---[ end trace 2efe0b990b41cd59 ]---
To reproduce:
# build kernel
cd linux
cp config-5.4.0-rc2-00011-g48d9b0d43105e .config
make HOSTCC=gcc-7 CC=gcc-7 ARCH=i386 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,
Rong Chen
View attachment "config-5.4.0-rc2-00011-g48d9b0d43105e" of type "text/plain" (147707 bytes)
View attachment "job-script" of type "text/plain" (4451 bytes)
Download attachment "dmesg.xz" of type "application/x-xz" (12364 bytes)
Powered by blists - more mailing lists