bisecting cause commit starting from b36c969764ab12faebb74711c942fa3e6eaf1e96 building syzkaller on 816e0689d7d9d8321f8bf360740f0e516aee15ca testing commit b36c969764ab12faebb74711c942fa3e6eaf1e96 with gcc (GCC) 8.1.0 kernel signature: fba0f82f94ec9e9c4296d81833c70e49c74ae64444edb613f21fda129b4ee801 all runs: crashed: possible deadlock in __sock_release testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: 0ad1386aeba922a9620c99ab672680b7c092f6a0f6d8d9ace76414dbf711d85f all runs: OK # git bisect start b36c969764ab12faebb74711c942fa3e6eaf1e96 bcf876870b95592b52519ed4aafcf9d95999bc9c Bisecting: 8973 revisions left to test after this (roughly 13 steps) [3f9df56480fc8ce492fc9e988d67bdea884ed15c] Merge tag 'sound-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 3f9df56480fc8ce492fc9e988d67bdea884ed15c with gcc (GCC) 8.1.0 kernel signature: 8e679fa03db27b9b1c74a9dabaf24b5757cd10730d8b8f518e3bac3bd86d20e1 all runs: OK # git bisect good 3f9df56480fc8ce492fc9e988d67bdea884ed15c Bisecting: 4484 revisions left to test after this (roughly 12 steps) [50f6c7dbd973092d8e5f3c89f29eb4bea19fdebd] Merge tag 'x86-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 50f6c7dbd973092d8e5f3c89f29eb4bea19fdebd with gcc (GCC) 8.1.0 kernel signature: 83579f082c76be1f6d6879884604b593389acf28afa4c820fa740970f3006a98 all runs: OK # git bisect good 50f6c7dbd973092d8e5f3c89f29eb4bea19fdebd Bisecting: 2218 revisions left to test after this (roughly 11 steps) [73b35c9503bd23dd5c9f7b33710af98998c71cf7] Merge remote-tracking branch 'bpf-next/master' into master testing commit 73b35c9503bd23dd5c9f7b33710af98998c71cf7 with gcc (GCC) 8.1.0 kernel signature: b4446b862972978e99c572db7306f5a1b5437093d1e6d6180d085a37562426fd all runs: crashed: possible deadlock in __sock_release # git bisect bad 73b35c9503bd23dd5c9f7b33710af98998c71cf7 Bisecting: 1145 revisions left to test after this (roughly 10 steps) [05762f035be159c2940b372b0cb7bb3189d8caf2] Merge remote-tracking branch 'mvebu/for-next' into master testing commit 05762f035be159c2940b372b0cb7bb3189d8caf2 with gcc (GCC) 8.1.0 kernel signature: 05b320461f5d86efb876cbd80dfe7183b9924f57ef1b2b124e3574baf4355d0b all runs: OK # git bisect good 05762f035be159c2940b372b0cb7bb3189d8caf2 Bisecting: 444 revisions left to test after this (roughly 9 steps) [f591ff048e7c3dc19d7e25c4fda06912669ab634] Merge remote-tracking branch 'hid/for-next' into master testing commit f591ff048e7c3dc19d7e25c4fda06912669ab634 with gcc (GCC) 8.1.0 kernel signature: 353a02c0d91589cd2ffdc8af37d9b9d63dcd5ef0b8ebf4efa69d3a3316bbb11f run #0: crashed: WARNING: ODEBUG bug in process_one_work run #1: crashed: WARNING: ODEBUG bug in process_one_work run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad f591ff048e7c3dc19d7e25c4fda06912669ab634 Bisecting: 348 revisions left to test after this (roughly 9 steps) [24b4bb58a7ef9b164fa610ce2aa0f4d2cb47242b] Merge remote-tracking branch 'zonefs/for-next' into master testing commit 24b4bb58a7ef9b164fa610ce2aa0f4d2cb47242b with gcc (GCC) 8.1.0 kernel signature: fc70710c6c2a6eff95dec8c21f9b7570381569c885b6ff733df00baac1b3496a all runs: OK # git bisect good 24b4bb58a7ef9b164fa610ce2aa0f4d2cb47242b Bisecting: 174 revisions left to test after this (roughly 8 steps) [07c20e845a3a6de9a473178134ad45d23b977eb6] Merge branch 'for-5.3/upstream-fixes' into for-next testing commit 07c20e845a3a6de9a473178134ad45d23b977eb6 with gcc (GCC) 8.1.0 kernel signature: 2706b7b8978eedd78a8e258ccfefeff81d422dc42080a04f18315c5e1033b128 all runs: OK # git bisect good 07c20e845a3a6de9a473178134ad45d23b977eb6 Bisecting: 87 revisions left to test after this (roughly 7 steps) [fc3cc4fb390d0d74f78280c07da7cd03bb09059e] Merge branch 'for-5.7/upstream-fixes' into for-next testing commit fc3cc4fb390d0d74f78280c07da7cd03bb09059e with gcc (GCC) 8.1.0 kernel signature: 20b1ea07515dba6f6708b72177fdc7a731420e4019113ba2c073cc40eb0a6b7d all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip fc3cc4fb390d0d74f78280c07da7cd03bb09059e Bisecting: 86 revisions left to test after this (roughly 7 steps) [ce6a086aebfdbadb57046e48c299d0bb87dbc83d] Merge branch 'for-5.7/upstream-fixes' into for-next testing commit ce6a086aebfdbadb57046e48c299d0bb87dbc83d with gcc (GCC) 8.1.0 kernel signature: 57e204798bfa0376d778c52dd3d6df62900cca4689727163e4f52ccd0fcfd9b3 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip ce6a086aebfdbadb57046e48c299d0bb87dbc83d Bisecting: 86 revisions left to test after this (roughly 7 steps) [e35456906bd4a82e26319c722b0058b6679ec50b] Merge branch 'for-5.8' into for-next testing commit e35456906bd4a82e26319c722b0058b6679ec50b with gcc (GCC) 8.1.0 kernel signature: 7aea5db7993107163cd21734ee599b23af6c97bdd602c1ec8839086570626b8c all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip e35456906bd4a82e26319c722b0058b6679ec50b Bisecting: 86 revisions left to test after this (roughly 7 steps) [edea44f5872a14d0e8698e0e0e540320833db9cb] Merge branch 'for-5.7/core' into for-next testing commit edea44f5872a14d0e8698e0e0e540320833db9cb with gcc (GCC) 8.1.0 kernel signature: 29808f3c2f40df242aab49864ac857868ebd054d7f72f09c9ba0f5f87559c41a run #0: crashed: WARNING: ODEBUG bug in __do_softirq 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: OK # git bisect bad edea44f5872a14d0e8698e0e0e540320833db9cb Bisecting: 31 revisions left to test after this (roughly 5 steps) [ced612fb3454537c2544648e4a4631adeaa301be] Merge branch 'for-5.4/upstream-fixes' into for-next testing commit ced612fb3454537c2544648e4a4631adeaa301be with gcc (GCC) 8.1.0 kernel signature: f5463301bb2ddea23f389bc67c7961444ce11fed5ec327c4f2ebf5a8f26a47a5 all runs: OK # git bisect good ced612fb3454537c2544648e4a4631adeaa301be Bisecting: 15 revisions left to test after this (roughly 4 steps) [c6f0a816d9cb8135f0517622ba4f2416a8ed8cce] Merge branch 'for-5.6/hidraw' into for-next testing commit c6f0a816d9cb8135f0517622ba4f2416a8ed8cce with gcc (GCC) 8.1.0 kernel signature: fc92aa7754a87ec5591bff9b52176b6d7cdc49fe48113334f0328fe02908be9c all runs: OK # git bisect good c6f0a816d9cb8135f0517622ba4f2416a8ed8cce Bisecting: 7 revisions left to test after this (roughly 3 steps) [62216a51293df32e9ba03851ae965c5da06de345] Merge branch 'for-5.5/upstream-fixes' into for-next testing commit 62216a51293df32e9ba03851ae965c5da06de345 with gcc (GCC) 8.1.0 kernel signature: f329581895dc2a4d6c2e31c2f61ab627118cbde09cede739237c996a2642e9e4 all runs: OK # git bisect good 62216a51293df32e9ba03851ae965c5da06de345 Bisecting: 3 revisions left to test after this (roughly 2 steps) [d036ff0e56a79b5bee805dc9668febe8dca3adfa] Merge branch 'for-5.6/logitech' into for-next testing commit d036ff0e56a79b5bee805dc9668febe8dca3adfa with gcc (GCC) 8.1.0 kernel signature: 6ef5f1b80d3d10571cfd429fb6e6e9cdc2b461352fd2e58aebb80ee2b0f2a063 all runs: OK # git bisect good d036ff0e56a79b5bee805dc9668febe8dca3adfa Bisecting: 1 revision left to test after this (roughly 1 step) [4f715ef99d6e7b234c58c52dc361e57b2f7e24bf] Merge branch 'for-5.6/upstream-fixes' into for-next testing commit 4f715ef99d6e7b234c58c52dc361e57b2f7e24bf with gcc (GCC) 8.1.0 kernel signature: 161bb31dbc4ecbe1f42ef8f446480abf846de0bc2e5e78f9f48006d336006dd7 all runs: OK # git bisect good 4f715ef99d6e7b234c58c52dc361e57b2f7e24bf Bisecting: 0 revisions left to test after this (roughly 0 steps) [1f7e4b862aad832bbea20e708276e6a4b881f50a] Merge branch 'for-5.6/upstream-fixes' into for-next testing commit 1f7e4b862aad832bbea20e708276e6a4b881f50a with gcc (GCC) 8.1.0 kernel signature: 27d7db7ad0e46dfeec68e5f18dbda585ae62f76c9542596d7966ca1412ad30e7 all runs: OK # git bisect good 1f7e4b862aad832bbea20e708276e6a4b881f50a edea44f5872a14d0e8698e0e0e540320833db9cb is the first bad commit commit edea44f5872a14d0e8698e0e0e540320833db9cb Merge: 1f7e4b862aad 3045696d0ce6 Author: Jiri Kosina Date: Wed Feb 12 14:20:41 2020 +0100 Merge branch 'for-5.7/core' into for-next drivers/hid/hid-quirks.c | 3 --- 1 file changed, 3 deletions(-) revisions tested: 19, total time: 4h52m54.48636439s (build: 1h45m43.416821723s, test: 3h4m52.388805869s) first bad commit: edea44f5872a14d0e8698e0e0e540320833db9cb Merge branch 'for-5.7/core' into for-next recipients (to): ["jkosina@suse.cz"] recipients (cc): [] crash: WARNING: ODEBUG bug in __do_softirq ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: xprt_init_autodisconnect+0x0/0x110 net/sunrpc/xprt.c:1311 WARNING: CPU: 0 PID: 7 at lib/debugobjects.c:484 debug_print_object+0x160/0x210 lib/debugobjects.c:481 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 5.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x128/0x182 lib/dump_stack.c:118 panic+0x22a/0x4e3 kernel/panic.c:221 __warn.cold.10+0x25/0x26 kernel/panic.c:582 report_bug+0x1ad/0x270 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x123/0x210 arch/x86/kernel/traps.c:267 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:debug_print_object+0x160/0x210 lib/debugobjects.c:481 Code: 8d 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 96 00 00 00 48 8b 14 dd c0 60 8d 87 4c 89 f6 48 c7 c7 20 56 8d 87 e8 ec 7d fb fd <0f> 0b 83 05 5b 9d 2e 06 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffffc90000007d48 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000101 RSI: 0000000000000007 RDI: ffffffff8b3ef460 RBP: 0000000000000001 R08: ffffed1015d045d1 R09: ffffed1015d045d1 R10: ffffed1015d045d0 R11: ffff8880ae822e83 R12: ffffffff889a4100 R13: ffffffff8157f5a0 R14: ffffffff878d5d20 R15: ffff88808f32e640 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline] debug_check_no_obj_freed+0x2de/0x454 lib/debugobjects.c:994 kfree+0xf4/0x2b0 mm/slab.c:3756 __rcu_reclaim kernel/rcu/rcu.h:215 [inline] rcu_do_batch kernel/rcu/tree.c:2183 [inline] rcu_core+0x5e6/0x1400 kernel/rcu/tree.c:2408 __do_softirq+0x26e/0x9b2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x191/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a1/0x5f0 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline] RIP: 0010:kmem_cache_free+0xac/0x320 mm/slab.c:3695 Code: 84 10 01 00 00 41 f7 c4 00 02 00 00 0f 84 e1 00 00 00 e8 77 cf d1 ff 48 83 3d 67 b8 f9 06 00 0f 84 66 02 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 4c 8b 64 24 20 0f 1f 44 00 00 65 8b 05 86 96 68 7e RSP: 0018:ffffc90000cdf880 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff88821b040700 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000286 RBP: ffff88809b7973c0 R08: fffffbfff1610390 R09: fffffbfff1610390 R10: fffffbfff161038f R11: ffffffff8b081c7f R12: 0000000000000286 R13: ffffffff85af2cf1 R14: ffff88809e6c4000 R15: 0000000000000cc0 netlink_broadcast_filtered+0x2c1/0xab0 net/netlink/af_netlink.c:1512 netlink_broadcast net/netlink/af_netlink.c:1534 [inline] nlmsg_multicast include/net/netlink.h:968 [inline] nlmsg_notify+0x68/0x150 net/netlink/af_netlink.c:2520 mpls_dev_notify+0x411/0x5f0 net/mpls/af_mpls.c:1631 notifier_call_chain+0x86/0x150 kernel/notifier.c:83 call_netdevice_notifiers_extack net/core/dev.c:1905 [inline] call_netdevice_notifiers net/core/dev.c:1919 [inline] rollback_registered_many+0x624/0xd10 net/core/dev.c:8755 unregister_netdevice_many+0x39/0x1f0 net/core/dev.c:9908 ip_tunnel_delete_nets+0x307/0x490 net/ipv4/ip_tunnel.c:1113 cleanup_net+0x46b/0x920 net/core/net_namespace.c:597 process_one_work+0x8d1/0x15b0 kernel/workqueue.c:2264 worker_thread+0x82/0xb50 kernel/workqueue.c:2410 kthread+0x31d/0x3e0 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..