ci starts bisection 2023-02-25 02:41:47.759684454 +0000 UTC m=+46231.962262395 bisecting fixing commit since 06f7db9499937c6496d697a765ac05cdcd37f381 building syzkaller on 60af505093169db753e7b7b319460495e4df554b ensuring issue is reproducible on original commit 06f7db9499937c6496d697a765ac05cdcd37f381 testing commit 06f7db9499937c6496d697a765ac05cdcd37f381 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 50a48d177a154bbeaff86606e57a15181baf26e496a7322a2c95aecc9869acd6 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: general protection fault in mon_bin_flush run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: general protection fault in mon_bin_flush run #6: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted run #10: crashed: general protection fault in mon_bin_flush run #11: crashed: INFO: rcu detected stall in corrupted run #12: crashed: general protection fault in mon_bin_flush run #13: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush run #14: crashed: INFO: rcu detected stall in corrupted run #15: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush run #16: crashed: general protection fault in mon_bin_flush run #17: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush run #18: crashed: general protection fault in mon_bin_flush run #19: crashed: KASAN: slab-out-of-bounds Read in mon_bin_flush testing current HEAD 595fa4e313fee3c0b69c10bbed6fffb803237306 testing commit 595fa4e313fee3c0b69c10bbed6fffb803237306 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ef9727b009200bd8f00a19ef08f4f5c124f1db4861df0e108af8bc145a58d8ce run #0: crashed: WARNING: ODEBUG bug in netdev_run_todo 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 reproducer seems to be flaky Reproducer flagged being flaky revisions tested: 2, total time: 1h5m46.633162846s (build: 45m35.755183213s, test: 19m5.011918747s) the crash still happens on HEAD commit msg: Merge tag 'soundwire-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire crash: WARNING: ODEBUG bug in netdev_run_todo bond0 (unregistering): Released all slaves ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88802690d4f8 object type: timer_list hint: batadv_dat_purge+0x0/0x50 net/batman-adv/distributed-arp-table.c:171 WARNING: CPU: 0 PID: 12804 at lib/debugobjects.c:509 debug_print_object+0x194/0x2c0 lib/debugobjects.c:509 Modules linked in: CPU: 0 PID: 12804 Comm: kworker/u4:6 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 Workqueue: netns cleanup_net RIP: 0010:debug_print_object+0x194/0x2c0 lib/debugobjects.c:509 Code: df 48 89 fe 48 c1 ee 03 80 3c 16 00 0f 85 c7 00 00 00 48 8b 14 dd 60 6f 86 89 50 4c 89 ee 48 c7 c7 20 63 86 89 e8 dc d6 7d fd <0f> 0b 58 83 05 26 01 51 09 01 48 83 c4 20 5b 5d 41 5c 41 5d 41 5e RSP: 0018:ffffc9000b3d78b8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffc9000b3d75e7 R10: fffff5200167aebc R11: 0000000000000000 R12: ffffffff892e5760 R13: ffffffff89866820 R14: ffff888071825910 R15: ffffffff8165f8c0 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056037a559cf8 CR3: 000000006ca00000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __debug_check_no_obj_freed lib/debugobjects.c:996 [inline] debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1027 slab_free_hook mm/slub.c:1756 [inline] slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0xab/0x2c0 mm/slub.c:3800 device_release+0x93/0x200 drivers/base/core.c:2436 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x139/0x3e0 lib/kobject.c:729 netdev_run_todo+0x663/0xea0 net/core/dev.c:10359 default_device_exit_batch+0x3b6/0x510 net/core/dev.c:11351 cleanup_net+0x423/0x990 net/core/net_namespace.c:613 process_one_work+0x8ba/0x1590 kernel/workqueue.c:2390 worker_thread+0x598/0xec0 kernel/workqueue.c:2537 kthread+0x294/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308