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Date: Tue, 26 Jun 2018 09:24:33 +0800
From: kernel test robot <xiaolong.ye@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: linux-kernel@...r.kernel.org, LKP <lkp@...org>
Subject: [lkp-robot] [bisect done] ca90800a91 [ 1.761734] WARNING: CPU: 0
PID: 1 at mm/page_alloc.c:4061 __alloc_pages_nodemask
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit ca90800a91ba723d78ded634d037c1d2df8b54d6
Author: Kees Cook <keescook@...omium.org>
AuthorDate: Thu May 10 16:40:03 2018 -0700
Commit: Kees Cook <keescook@...omium.org>
CommitDate: Tue Jun 5 12:16:51 2018 -0700
test_overflow: Add memory allocation overflow tests
Make sure that the memory allocators are behaving as expected in the face
of overflows of multiplied arguments or when using the array_size()-family
helpers.
Example output of new tests (with the expected __alloc_pages_slowpath
and vmalloc warnings about refusing giant allocations removed):
[ 93.062076] test_overflow: kmalloc detected saturation
[ 93.062988] test_overflow: kmalloc_node detected saturation
[ 93.063818] test_overflow: kzalloc detected saturation
[ 93.064539] test_overflow: kzalloc_node detected saturation
[ 93.120386] test_overflow: kvmalloc detected saturation
[ 93.143458] test_overflow: kvmalloc_node detected saturation
[ 93.166861] test_overflow: kvzalloc detected saturation
[ 93.189924] test_overflow: kvzalloc_node detected saturation
[ 93.221671] test_overflow: vmalloc detected saturation
[ 93.246326] test_overflow: vmalloc_node detected saturation
[ 93.270260] test_overflow: vzalloc detected saturation
[ 93.293824] test_overflow: vzalloc_node detected saturation
[ 93.294597] test_overflow: devm_kmalloc detected saturation
[ 93.295383] test_overflow: devm_kzalloc detected saturation
[ 93.296217] test_overflow: all tests passed
Signed-off-by: Kees Cook <keescook@...omium.org>
610b15c50e overflow.h: Add allocation size calculation helpers
ca90800a91 test_overflow: Add memory allocation overflow tests
35773c9381 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
4b373f94fe Add linux-next specific files for 20180615
+----------------------------------------------------+------------+------------+------------+---------------+
| | 610b15c50e | ca90800a91 | 35773c9381 | next-20180615 |
+----------------------------------------------------+------------+------------+------------+---------------+
| boot_successes | 57 | 0 | 0 | 0 |
| boot_failures | 0 | 37 | 19 | 50 |
| WARNING:at_mm/page_alloc.c:#__alloc_pages_nodemask | 0 | 37 | 19 | 50 |
| EIP:__alloc_pages_nodemask | 0 | 37 | 19 | 50 |
| Mem-Info | 0 | 37 | 19 | 50 |
+----------------------------------------------------+------------+------------+------------+---------------+
[ 1.756827] test_overflow: s8 : 19 tests
[ 1.757722] test_overflow: u16: 17 tests
[ 1.758673] test_overflow: s16: 17 tests
[ 1.759738] test_overflow: u32: 17 tests
[ 1.760677] test_overflow: s32: 17 tests
[ 1.761734] WARNING: CPU: 0 PID: 1 at mm/page_alloc.c:4061 __alloc_pages_nodemask+0x172/0xa40
[ 1.764050] Modules linked in:
[ 1.764815] CPU: 0 PID: 1 Comm: swapper Not tainted 4.17.0-rc4-00006-gca90800 #108
[ 1.765046] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
[ 1.765046] EIP: __alloc_pages_nodemask+0x172/0xa40
[ 1.765046] EFLAGS: 00210246 CPU: 0
[ 1.765046] EAX: 00200140 EBX: 00000000 ECX: 00000000 EDX: c0039e14
[ 1.765046] ESI: c0039e14 EDI: 00000000 EBP: c0039e5c ESP: c0039dd4
[ 1.765046] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[ 1.765046] CR0: 80050033 CR2: 00000000 CR3: 13ce6000 CR4: 000006b0
[ 1.765046] Call Trace:
[ 1.765046] kmalloc_order+0x13/0x30
[ 1.765046] __kmalloc+0x2f/0x140
[ 1.765046] test_module_init+0x1128/0x1ab0
[ 1.765046] ? vprintk_emit+0x3a2/0x400
[ 1.765046] ? vprintk_default+0x12/0x20
[ 1.765046] ? vprintk_func+0x55/0x60
[ 1.765046] ? printk+0xe/0x10
[ 1.765046] ? string_selftest_init+0x2a1/0x2a1
[ 1.765046] do_one_initcall+0x65/0x148
[ 1.765046] ? do_early_param+0x75/0x75
[ 1.765046] kernel_init_freeable+0xdf/0x16a
[ 1.765046] ? rest_init+0xc0/0xc0
[ 1.765046] kernel_init+0x8/0xe0
[ 1.765046] ret_from_fork+0x19/0x24
[ 1.765046] Code: 89 f6 8d bc 27 00 00 00 00 39 5d bc c6 45 cc 00 74 07 89 5d bc 8d 74 26 00 83 7d b0 0a 76 1a 81 e7 00 02 00 00 0f 85 ae 08 00 00 <0f> 0b e9 a7 08 00 00 8d b4 26 00 00 00 00 89 f8 25 00 00 48 00
[ 1.765046] ---[ end trace ed0d4aa536181e08 ]---
[ 1.792892] test_overflow: kmalloc detected saturation
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start 3e592428c3e9499beb29b6d32c897cefdb78736e 29dcea88779c856c7dc92040a0c01233263101d4 --
git bisect bad 28433e0629539b932e1e92e034a52d41a99946db # 01:52 B 0 3 17 0 Merge 'linux-review/Bart-Van-Assche/btrfs-Fix-a-C-compliance-issue/20180616-064505' into devel-spot-201806170104
git bisect bad 0c165328cd075dfd6a7f3a0ebb936f6a6d4e19eb # 02:10 B 0 3 17 0 Merge 'linux-review/Nicholas-Mc-Guire/MIPS-Octeon-assign-bool-true-false-not-1-0/20180616-153047' into devel-spot-201806170104
git bisect bad 3ef1cb6222d11fa39e73582183e272bf79ce308d # 02:25 B 0 11 40 15 Merge 'rcu/rcu/dev' into devel-spot-201806170104
git bisect bad c1676433a88101f37352f4e226690ca5e40f0daf # 02:40 B 0 3 31 14 Merge 'l1k/pciehp_runpm_v2' into devel-spot-201806170104
git bisect good db5af21ace0378d0a63ae0fc047519391d25d58b # 02:50 G 11 0 0 0 0day base guard for 'devel-spot-201806170104'
git bisect bad 3d65675feaa6336996694ae20c49d54aa663237f # 02:55 B 0 1 19 4 Merge 'hch-block/kill-bio_clone_kmalloc' into devel-spot-201806170104
git bisect bad 1c8c5a9d38f607c0b6fd12c91cbe1a4418762a21 # 03:09 B 0 5 19 0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect good 135c5504a600ff9b06e321694fbcac78a9530cd4 # 03:20 G 11 0 1 1 Merge tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm
git bisect good ffbc9197b4721634dc6c0fefa9b31e565fa89cee # 03:26 G 11 0 11 22 wcn36xx: improve debug and error messages for SMD
git bisect good fd129f8941cf2309def29b5c8a23b62faff0c9d0 # 03:38 G 11 0 1 1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
git bisect good d4d5a1cd298e67cb68cca8dc7dd1ea3942cce3ff # 03:48 G 11 0 0 2 Merge tag 'asoc-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
git bisect good 311da4975894aab7a4bb94aa83f38f052d7ffda4 # 03:54 G 11 0 0 0 Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
git bisect good d75ae5bdf2353e5c6a1f83da5f6f2d31582f09a3 # 04:08 G 11 0 0 1 Merge tag 'printk-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
git bisect good 8b5c6a3a49d9ebc7dc288870b9c56c4f946035d8 # 04:14 G 11 0 0 0 Merge tag 'audit-pr-20180605' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
git bisect good 5eb6eed7e0fe880dc8de8da203cc888716bbf196 # 04:19 G 11 0 0 0 Merge tag 'trace-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
git bisect bad 285767604576148fc1be7fcd112e4a90eb0d6ad2 # 04:25 B 0 2 19 3 Merge tag 'overflow-v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect bad ca90800a91ba723d78ded634d037c1d2df8b54d6 # 04:35 B 0 3 28 11 test_overflow: Add memory allocation overflow tests
git bisect good 6d3344324b5ae49fc8cb599a2c687e5607ba6e9f # 04:44 G 11 0 0 0 test_overflow: macrofy some more, do more tests for free
git bisect good 610b15c50e86eb1e4b77274fabcaea29ac72d6a8 # 04:49 G 11 0 0 0 overflow.h: Add allocation size calculation helpers
# first bad commit: [ca90800a91ba723d78ded634d037c1d2df8b54d6] test_overflow: Add memory allocation overflow tests
git bisect good 610b15c50e86eb1e4b77274fabcaea29ac72d6a8 # 04:52 G 31 0 0 0 overflow.h: Add allocation size calculation helpers
# extra tests with debug options
git bisect bad ca90800a91ba723d78ded634d037c1d2df8b54d6 # 04:58 B 0 4 20 2 test_overflow: Add memory allocation overflow tests
# extra tests on HEAD of linux-devel/devel-spot-201806170104
git bisect bad 3e592428c3e9499beb29b6d32c897cefdb78736e # 05:03 B 0 15 32 0 0day head guard for 'devel-spot-201806170104'
# extra tests on tree/branch linus/master
git bisect bad 35773c93817c5f2df264d013978e7551056a063a # 05:12 B 0 1 15 0 Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
# extra tests on tree/branch linux-next/master
git bisect bad 4b373f94fee5acf2ff4c1efbb3f702060379df1f # 05:25 B 0 4 29 11 Add linux-next specific files for 20180615
---
0-DAY kernel test infrastructure Open Source Technology Center
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