bisecting cause commit starting from 7dc6fd0f3b8404542718039f5de19fe56e474578 building syzkaller on d895b3be2cffeab3004bc0087a9f3e2b2b790892 testing commit 7dc6fd0f3b8404542718039f5de19fe56e474578 with gcc (GCC) 8.1.0 kernel signature: eae75f381f7d0c262570e40c0c4372c44583e98f7871f02bccc91ea385cf13f4 run #0: crashed: WARNING in corrupted run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in corrupted run #3: crashed: WARNING in corrupted run #4: crashed: WARNING in corrupted run #5: crashed: WARNING in hci_conn_timeout run #6: crashed: WARNING in hci_conn_timeout run #7: crashed: WARNING in corrupted run #8: crashed: WARNING in hci_conn_timeout run #9: crashed: WARNING in hci_conn_timeout testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0 kernel signature: 85e071931606d86b52ca613a2795eda0523546ebeb33833c1b48a9c87c43cb38 all runs: crashed: WARNING in hci_conn_timeout testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0 kernel signature: 83e86c9a4987fdffbd1508d82372174564e2d7413719e245f8d8f49f15ccf244 all runs: crashed: WARNING in hci_conn_timeout testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0 kernel signature: fcb037746a911053c9421d500835c7a17373e6da664f2167c2b7ac7e0a3b89b6 all runs: crashed: WARNING in hci_conn_timeout testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0 kernel signature: 30126fe4e8a773f4dcba1b594c6ca5459c5215fe20b243b01c7dbbf3ba3d3ffc all runs: crashed: WARNING in hci_conn_timeout testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0 kernel signature: 5dea5c103526a0907ffb0642e69fedb19edd5e8fd691a9c1b441931975be1915 all runs: crashed: WARNING in hci_conn_timeout testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 kernel signature: caf09d126359ec5e7029866e24e1e0e74a3ebe8f80e9241d5766f09ace53e4c3 all runs: crashed: WARNING in hci_conn_timeout testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 kernel signature: 92d800514223f26d42d12f7ab62b699f0d2af0b3249b7aacf03626c289e6ef4f all runs: crashed: WARNING in hci_conn_timeout testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 kernel signature: 4f4c06760dccdaae44c73bf06eda418599c0a07b93d3594f79efec60a3b32adb run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in hci_conn_timeout run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in hci_conn_timeout run #9: crashed: WARNING in hci_conn_timeout testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 kernel signature: 512055ce18ada250f1a2fd1657b7155835883c2393461a8ab6205726b168389e run #0: crashed: WARNING in corrupted run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in corrupted run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in corrupted run #5: crashed: WARNING in hci_conn_timeout run #6: crashed: WARNING in hci_conn_timeout run #7: crashed: WARNING in corrupted run #8: crashed: WARNING in hci_conn_timeout run #9: crashed: WARNING in hci_conn_timeout testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 kernel signature: b1d895de76038552f67c1273b70805a1360fafccef64fe4b945879180102e139 run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in corrupted run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in hci_conn_timeout run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in hci_conn_timeout run #9: crashed: WARNING in corrupted testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 kernel signature: daa2827fddca13b0fc72bc3f4e30c949e7c98b11bd9829f558f82c02c29988be run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in corrupted run #3: crashed: WARNING in corrupted run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in corrupted testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 kernel signature: 962268e3a9759208886a8a439828d67a104f7875fd4266071bfe6395b4c1bf8d run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in corrupted run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in hci_conn_timeout run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in hci_conn_timeout testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 kernel signature: 9542b76dc657e9ef56cc28b18419fef3563f38880b585cb9a59468aacfdc4946 run #0: crashed: WARNING in corrupted run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in corrupted run #3: crashed: WARNING in corrupted run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in hci_conn_timeout run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in corrupted run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in hci_conn_timeout testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 kernel signature: 54073235d4461b4f2ceae57ec7a4f166f50145dfa02b63a51b018b1b0cc131fa run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in corrupted run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in corrupted run #4: crashed: WARNING in corrupted run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in corrupted testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 kernel signature: 154d023e5edd4b4901f0823097bc069b80026641840520d240fe3446e27b5a48 run #0: crashed: WARNING in corrupted run #1: crashed: WARNING in corrupted run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in hci_conn_timeout run #9: crashed: WARNING in hci_conn_timeout testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 kernel signature: 90768288345b48cd48e8134ab5b1a33e774312de4a684b9d861f10ff38ce016d run #0: crashed: WARNING in hci_conn_timeout run #1: crashed: WARNING in corrupted run #2: crashed: WARNING in corrupted run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in corrupted run #5: crashed: WARNING in corrupted run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in corrupted testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 kernel signature: a654fc77e12acf748851a5ad3688d644b303170dbb3391d4971f96d718468d6b all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 kernel signature: 0ec4344022d67a359fd130f832948a65051cbfcb73e7a155d7f9b94fd61b0fb3 all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 kernel signature: 167d49dd21679d5996cbd394ca6c1732b30b3f58cdc3295c96729a7faafb650a run #0: crashed: WARNING in corrupted run #1: crashed: WARNING in hci_conn_timeout run #2: crashed: WARNING in hci_conn_timeout run #3: crashed: WARNING in hci_conn_timeout run #4: crashed: WARNING in hci_conn_timeout run #5: crashed: WARNING in hci_conn_timeout run #6: crashed: WARNING in hci_conn_timeout run #7: crashed: WARNING in hci_conn_timeout run #8: crashed: WARNING in corrupted run #9: crashed: WARNING in hci_conn_timeout testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 kernel signature: c194f4b84caf87f5a252c174c2e4d03cba5cfa80ad602c544d7d2eac66417ff2 all runs: OK # git bisect start c470abd4fde40ea6a0846a2beab642a578c0b8cd 69973b830859bc6529a7a0468ba0d80ee5117826 Bisecting: 7099 revisions left to test after this (roughly 13 steps) [f4000cd99750065d5177555c0a805c97174d1b9f] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux testing commit f4000cd99750065d5177555c0a805c97174d1b9f with gcc (GCC) 5.5.0 kernel signature: 047962b410f00513d7df86f76e8c621524b9d86db27ea615f264e90d9d9fd1e8 run #0: boot failed: can't ssh into the instance run #1: boot failed: can't ssh into the instance run #2: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in scsi_id:LINE run #3: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #4: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #5: boot failed: can't ssh into the instance run #6: boot failed: can't ssh into the instance run #7: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #8: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE # git bisect skip f4000cd99750065d5177555c0a805c97174d1b9f Bisecting: 7099 revisions left to test after this (roughly 13 steps) [ab1effc09519f3bb4b84dd6d8276cedf07b17a1b] staging: ks7010: Add blank line after declarations testing commit ab1effc09519f3bb4b84dd6d8276cedf07b17a1b with gcc (GCC) 5.5.0 kernel signature: 79a937bf68274d054aa6aac3ff87ebdd5aa405db151803fb6c6eece33558531c run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad ab1effc09519f3bb4b84dd6d8276cedf07b17a1b Bisecting: 141 revisions left to test after this (roughly 7 steps) [d70c509152292cd4cc741f97ce043e0f65f72689] staging:r8188eu: remove precv_frame_buf member of recv_priv structure testing commit d70c509152292cd4cc741f97ce043e0f65f72689 with gcc (GCC) 5.5.0 kernel signature: 2290f1a03a07bc24df747f78e1763e84a7c8c93a811e6b6db369218a9f9ea34a run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad d70c509152292cd4cc741f97ce043e0f65f72689 Bisecting: 71 revisions left to test after this (roughly 6 steps) [c10364e1f4f6cc7e8c3f2e6a3ecb96da8769f10b] staging: rtl8188eu: core: removes unecessary parenthesis testing commit c10364e1f4f6cc7e8c3f2e6a3ecb96da8769f10b with gcc (GCC) 5.5.0 kernel signature: 2f32d0216b8a2ec9ec5e7254b59a6e5dd7f614a9f2f41382d2a13d8ded717cd9 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: crashed: WARNING in nf_unregister_net_hook run #7: crashed: WARNING in nf_unregister_net_hook run #8: OK run #9: OK # git bisect bad c10364e1f4f6cc7e8c3f2e6a3ecb96da8769f10b Bisecting: 34 revisions left to test after this (roughly 5 steps) [55554f31e97878133d8b2bdf495504e1c557081c] staging: lustre: lov: add cl_object_layout_get() testing commit 55554f31e97878133d8b2bdf495504e1c557081c with gcc (GCC) 5.5.0 kernel signature: 1c2ba756508bae83bdee403c09f3a435a62c50e1039044b5dd4cf25a37767fb5 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: WARNING in nf_unregister_net_hook run #8: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad 55554f31e97878133d8b2bdf495504e1c557081c Bisecting: 17 revisions left to test after this (roughly 4 steps) [cbd4d4a8e319050100db4e05d896cee65f011d25] staging: lustre: llite: remove duplicate fiemap defines testing commit cbd4d4a8e319050100db4e05d896cee65f011d25 with gcc (GCC) 5.5.0 kernel signature: 2f52086bef0e7b64df0b1c457b04d80f049e699170676c15ea0e70cd71f63f25 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: WARNING in nf_unregister_net_hook run #8: crashed: WARNING in nf_unregister_net_hook run #9: OK # git bisect bad cbd4d4a8e319050100db4e05d896cee65f011d25 Bisecting: 8 revisions left to test after this (roughly 3 steps) [a2a87b224b33f30ca5172945c132e39260e95403] staging: greybus: Add blank line after declaration testing commit a2a87b224b33f30ca5172945c132e39260e95403 with gcc (GCC) 5.5.0 kernel signature: cf3bd887907b4e2bd053526a25ccfebbc68159be18cb7c103ee8570ad75e75b8 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: crashed: WARNING in nf_unregister_net_hook run #8: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad a2a87b224b33f30ca5172945c132e39260e95403 Bisecting: 3 revisions left to test after this (roughly 2 steps) [14c681ea83adcbb33ed31c50cda1a2297bbade7e] Staging: sm750fb: use unsigned int instead unsigned testing commit 14c681ea83adcbb33ed31c50cda1a2297bbade7e with gcc (GCC) 5.5.0 kernel signature: 36c5afe179d6809dc78d06b62d137144f12b255e508f3d19d11f1a152d4215c5 all runs: OK # git bisect good 14c681ea83adcbb33ed31c50cda1a2297bbade7e Bisecting: 1 revision left to test after this (roughly 1 step) [cb026e398852729cae02b105cf42a1863df78988] staging: greybus: Fix a commit coding style issue. testing commit cb026e398852729cae02b105cf42a1863df78988 with gcc (GCC) 5.5.0 kernel signature: 0e0914772ae7df3cf78007a94b0fbbf62845ad80f5b9ea7f4e4f668d8ff52dfc run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: crashed: WARNING in nf_unregister_net_hook run #7: crashed: WARNING in nf_unregister_net_hook run #8: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad cb026e398852729cae02b105cf42a1863df78988 Bisecting: 0 revisions left to test after this (roughly 0 steps) [3d30311c0e4d834c94e6a27d6242a942d6a76b85] staging: vt6655: Removes unnecessary blank lines. testing commit 3d30311c0e4d834c94e6a27d6242a942d6a76b85 with gcc (GCC) 5.5.0 kernel signature: 7f0af0325099277bfb34744e6c808e1d5620de0ccc6aa5d17e0d26a66be02ca1 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: crashed: WARNING in nf_unregister_net_hook run #9: crashed: WARNING in nf_unregister_net_hook # git bisect bad 3d30311c0e4d834c94e6a27d6242a942d6a76b85 3d30311c0e4d834c94e6a27d6242a942d6a76b85 is the first bad commit commit 3d30311c0e4d834c94e6a27d6242a942d6a76b85 Author: Varsha Rao Date: Sun Oct 9 16:43:56 2016 +0530 staging: vt6655: Removes unnecessary blank lines. This patch fixes the checkpatch issue of multiple blank lines, by removing them. Signed-off-by: Varsha Rao Signed-off-by: Greg Kroah-Hartman drivers/staging/vt6655/baseband.c | 1 - drivers/staging/vt6655/device_main.c | 1 - drivers/staging/vt6655/mac.c | 1 - drivers/staging/vt6655/power.c | 1 - drivers/staging/vt6655/power.h | 1 - 5 files changed, 5 deletions(-) culprit signature: 7f0af0325099277bfb34744e6c808e1d5620de0ccc6aa5d17e0d26a66be02ca1 parent signature: 36c5afe179d6809dc78d06b62d137144f12b255e508f3d19d11f1a152d4215c5 revisions tested: 31, total time: 6h20m28.708368683s (build: 2h39m24.87137805s, test: 3h34m46.202224439s) first bad commit: 3d30311c0e4d834c94e6a27d6242a942d6a76b85 staging: vt6655: Removes unnecessary blank lines. recipients (to): ["devel@driverdev.osuosl.org" "gregkh@linuxfoundation.org" "gregkh@linuxfoundation.org" "rvarsha016@gmail.com"] recipients (cc): ["forest@alittletooquiet.net" "linux-kernel@vger.kernel.org"] crash: WARNING in nf_unregister_net_hook bond0 (unregistering): Releasing backup interface bond_slave_1 bond0 (unregistering): Releasing backup interface bond_slave_0 bond0 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2692 at net/netfilter/core.c:151 nf_unregister_net_hook+0x28a/0x3c0 net/netfilter/core.c:151 nf_unregister_net_hook: hook not found! Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 2692 Comm: kworker/u4:0 Not tainted 4.9.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net ffff8801080e7890 ffffffff82d76a92 ffffffff86085f80 ffff8801080e7968 ffffffff868b2400 ffffffff84d73d0a 0000000000000009 ffff8801080e7958 ffffffff81641ef2 0000000041b58ab3 ffffffff86d6766f ffffffff81641d3c Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0x136/0x1d4 lib/dump_stack.c:51 [] panic+0x1b6/0x358 kernel/panic.c:179 [] __warn+0x18d/0x1b0 kernel/panic.c:542 [] warn_slowpath_fmt+0x92/0xb0 kernel/panic.c:565 [] nf_unregister_net_hook+0x28a/0x3c0 net/netfilter/core.c:151 [] nf_unregister_hook_list net/netfilter/core.c:484 [inline] [] netfilter_net_exit+0x36/0xa0 net/netfilter/core.c:516 [] ops_exit_list.isra.0+0x8e/0x120 net/core/net_namespace.c:136 [] cleanup_net+0x2d0/0x570 net/core/net_namespace.c:449 [] process_one_work+0x67d/0x14d0 kernel/workqueue.c:2096 [] worker_thread+0xe1/0x1050 kernel/workqueue.c:2230 [] kthread+0x20e/0x2d0 kernel/kthread.c:209 [] ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:433 Kernel Offset: disabled