syzbot


WARNING: ODEBUG bug in netdev_freemem (2)
Status: upstream: reported syz repro on 2019/06/24 08:53
Reported-by: syzbot+c4521ac872a4ccc3afec@syzkaller.appspotmail.com
First crash: 1076d, last: 437d

Cause bisection: failed (bisect log)

Fix bisection: failed (bisect log)
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: ODEBUG bug in netdev_freemem 179 824d 1121d 0/1 auto-closed as invalid on 2020/06/20 15:09
linux-4.19 WARNING: ODEBUG bug in netdev_freemem syz error 243 826d 1135d 0/1 upstream: reported syz repro on 2019/04/17 11:08
upstream WARNING: ODEBUG bug in netdev_freemem syz done 1042 1076d 1241d 13/22 fixed on 2019/06/14 18:22

Sample crash report:
ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 arch/x86/include/asm/paravirt.h:756
WARNING: CPU: 1 PID: 9025 at lib/debugobjects.c:481 debug_print_object+0x168/0x250 lib/debugobjects.c:481
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 9025 Comm: kworker/u4:5 Not tainted 5.4.0-rc5+ #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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:481
Code: dd a0 f9 e6 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd a0 f9 e6 87 48 c7 c7 00 ef e6 87 e8 c0 18 fd fd <0f> 0b 83 05 c3 6b 7f 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3
RSP: 0000:ffff88809aa8f838 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815cc2b6 RDI: ffffed1013551ef9
RBP: ffff88809aa8f878 R08: ffff888094ae2340 R09: ffffed1015d24101
R10: ffffed1015d24100 R11: ffff8880ae920807 R12: 0000000000000001
R13: ffffffff88fb5880 R14: ffffffff81627ea0 R15: ffff8880a924af50
 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline]
 debug_check_no_obj_freed+0x2d4/0x43f lib/debugobjects.c:994
 kfree+0xf8/0x2c0 mm/slab.c:3755
 kvfree+0x61/0x70 mm/util.c:593
 netdev_freemem+0x4c/0x60 net/core/dev.c:9148
 netdev_release+0x86/0xb0 net/core/net-sysfs.c:1635
 device_release+0x7a/0x210 drivers/base/core.c:1101
 kobject_cleanup lib/kobject.c:693 [inline]
 kobject_release lib/kobject.c:722 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put.cold+0x289/0x2e6 lib/kobject.c:739
 netdev_run_todo+0x535/0x7d0 net/core/dev.c:9053
 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112
 default_device_exit_batch+0x36a/0x420 net/core/dev.c:9836
 ops_exit_list.isra.0+0x10c/0x160 net/core/net_namespace.c:175
 cleanup_net+0x52e/0xae0 net/core/net_namespace.c:595
 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269
 worker_thread+0x98/0xe40 kernel/workqueue.c:2415
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1332):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2019/11/01 13:43 upstream e472c64aa4fa a41ca8fa .config log report syz
ci-upstream-bpf-kasan-gce 2019/09/26 02:00 bpf 4670d68b9254 a3355dba .config log report syz
ci-upstream-net-kasan-gce 2019/08/08 00:24 net-next 13dfb3fa4943 e6ebef88 .config log report syz
ci-qemu2-arm32 2021/03/14 15:51 upstream 88fe49249c99 4a003785 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/13 08:41 upstream f296bfd5cd04 4a003785 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/12 08:42 upstream 28806e4d9b97 429d8a6b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/11 18:47 upstream a74e6a014c9d c2ca1f2a .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/10 03:46 upstream 144c79ef3353 26967e35 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/09 17:35 upstream 144c79ef3353 26967e35 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/09 10:11 upstream 144c79ef3353 09fbf400 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/08 22:47 upstream 144c79ef3353 09fbf400 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/08 10:50 upstream 144c79ef3353 09fbf400 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/08 09:30 upstream 144c79ef3353 09fbf400 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/07 12:43 upstream a38fd8748464 c599ed12 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/07 02:49 upstream a38fd8748464 e4b4d570 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/06 18:51 upstream a38fd8748464 e4b4d570 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/06 14:10 upstream a38fd8748464 e4b4d570 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/06 08:04 upstream a38fd8748464 e4b4d570 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/06 00:43 upstream 280d542f6ffa 4a024a9b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/05 03:35 upstream cee407c5cc42 f89ed068 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/04 20:00 upstream f69d02e37a85 f89ed068 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/04 10:49 upstream f69d02e37a85 d7e4e604 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/04 02:26 upstream f69d02e37a85 d7e4e604 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/03 21:34 upstream f69d02e37a85 06ed56cd .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/02 16:56 upstream 7a7fd0de4a98 92ead296 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/02 09:11 upstream 7a7fd0de4a98 92ead296 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/02 02:48 upstream 7a7fd0de4a98 183afb6c .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/03/01 22:51 upstream 7a7fd0de4a98 183afb6c .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/01 10:33 upstream fe07bfda2fb9 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/03/01 03:44 upstream cd278456d4ca 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/28 14:00 upstream 5695e5161974 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/02/28 07:23 upstream 5695e5161974 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/27 18:45 upstream 3fb6d0e00efc 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/02/26 19:32 upstream 8b83369ddcb3 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/26 17:56 upstream 2c87f7a38f93 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/02/26 13:34 upstream 2c87f7a38f93 4c37c133 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/26 05:25 upstream 2c87f7a38f93 76f7fc95 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/25 21:56 upstream 29c395c77a9a 76f7fc95 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/25 19:49 upstream 29c395c77a9a 76f7fc95 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64 2021/02/25 11:29 upstream 29c395c77a9a fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/25 06:34 upstream 719bbd4a509f fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/24 23:59 upstream 719bbd4a509f fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/24 16:47 upstream c03c21ba6f4e fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/24 10:26 upstream c03c21ba6f4e fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-arm64-compat 2021/02/24 04:00 upstream c03c21ba6f4e fcc6d71b .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-riscv64 2021/03/14 13:00 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 0d7588ab9ef9 4a003785 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-riscv64 2021/03/13 11:01 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 0d7588ab9ef9 4a003785 .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-qemu2-riscv64 2021/03/11 03:36 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git fixes 0d7588ab9ef9 c2ca1f2a .config log report info WARNING: ODEBUG bug in netdev_freemem
ci-upstream-kasan-gce-selinux-root 2020/03/01 22:21 upstream 63623fd44972 c88c7b75 .config log report
ci-upstream-kasan-gce-root 2020/02/27 09:53 upstream f8788d86ab28 59b57593 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/21 16:14 upstream ca7e1fd1026c bd2a74a3 .config log report
ci-upstream-kasan-gce 2020/02/04 03:07 upstream 754beeec1d90 93e5e335 .config log report
ci-qemu-upstream 2020/01/16 03:20 upstream 51d69817519f f9b69507 .config log report
ci-upstream-kasan-gce-smack-root 2019/06/15 03:50 upstream fd6b99fa41dd 442206d7 .config log report
ci-upstream-kasan-gce-386 2020/01/23 09:12 upstream dbab40bdb42c 3334d684 .config log report
ci-upstream-net-this-kasan-gce 2020/03/01 14:07 net 3614d05b5e6b c88c7b75 .config log report
ci-upstream-bpf-kasan-gce 2020/02/18 12:06 bpf e20d3a055a45 1ce142dc .config log report
ci-upstream-bpf-kasan-gce 2019/06/14 23:33 bpf 86723c864063 442206d7 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/03 23:17 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-bpf-next-kasan-gce 2020/03/03 13:21 bpf-next 80a836c2506b c88c7b75 .config log report
ci-upstream-net-kasan-gce 2020/02/28 15:57 net-next c3e042f54107 59b57593 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/03/04 16:31 linux-next c99b17ac0399 c88c7b75 .config log report