syzbot


WARNING: ODEBUG bug in __do_softirq

Status: upstream: reported C repro on 2018/02/17 08:15
Reported-by: syzbot+51c9bdfa559769d2f897@syzkaller.appspotmail.com
First crash: 1685d, last: 358d

Cause bisection: introduced by (bisect log) :
commit 5b317cbf2bcb85a1e96ce87717cb991ecab1dd4d
Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Fri Feb 22 09:17:11 2019 +0000

  Merge branch 'pm-cpufreq-fixes'

Crash: KASAN: use-after-free Read in rpc_make_runnable (log)
Repro: syz .config

Fix bisection: failed (bisect log)
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING: ODEBUG bug in __do_softirq 2 383d 482d 0/1 auto-closed as invalid on 2022/01/08 08:22
android-49 WARNING: ODEBUG bug in __do_softirq syz 1 1468d 1263d 0/3 public: reported syz repro on 2019/04/14 09:28
Patch testing requests:
Created Duration User Patch Repo Result
2022/09/05 07:27 17m bpf-next OK log

Sample crash report:
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: afs_manage_cell+0x0/0x11c0 fs/afs/cell.c:498
WARNING: CPU: 1 PID: 16 at lib/debugobjects.c:485 debug_print_object+0x160/0x250 lib/debugobjects.c:485
Modules linked in:
CPU: 1 PID: 16 Comm: ksoftirqd/1 Not tainted 5.9.0-rc2-next-20200825-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:485
Code: dd 60 56 94 88 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd 60 56 94 88 48 c7 c7 c0 4b 94 88 e8 eb bd a4 fd <0f> 0b 83 05 13 50 1b 07 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffffc90000d7fbf8 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff8880a9686440 RSI: ffffffff815da937 RDI: fffff520001aff71
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880ae720f8b
R10: 0000000000000000 R11: 203a47554245444f R12: ffffffff89ba35e0
R13: ffffffff814b6290 R14: dead000000000100 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9120aabe78 CR3: 0000000088b2e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __debug_check_no_obj_freed lib/debugobjects.c:967 [inline]
 debug_check_no_obj_freed+0x301/0x41c lib/debugobjects.c:998
 kfree+0xf0/0x2c0 mm/slab.c:3755
 rcu_do_batch kernel/rcu/tree.c:2474 [inline]
 rcu_core+0x61e/0x1220 kernel/rcu/tree.c:2709
 __do_softirq+0x2de/0xa24 kernel/softirq.c:298
 run_ksoftirqd kernel/softirq.c:652 [inline]
 run_ksoftirqd+0x89/0x100 kernel/softirq.c:644
 smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
 kthread+0x3b5/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

Crashes (31):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2020/08/26 08:53 linux-next 3a00d3dfd4b6 344da168 .config log report syz C
ci-upstream-kasan-gce-root 2019/02/24 18:56 upstream e60b5f79bd75 7a06e792 .config log report syz
ci-upstream-kasan-gce-root 2018/12/17 13:58 upstream 7566ec393f41 def91db3 .config log report syz
ci-upstream-kasan-gce-selinux-root 2018/12/17 13:25 upstream 7566ec393f41 def91db3 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/12/24 01:49 linux-next 6648e120dd1a e3bd7ab8 .config log report syz
ci-upstream-bpf-next-kasan-gce 2018/06/29 08:57 bpf-next 509fda105ba8 dba0b50e .config log report syz
ci-upstream-kasan-gce-root 2021/10/05 09:51 upstream 84b3e42564ac ce697b49 .config log report info WARNING: ODEBUG bug in __do_softirq
ci-upstream-net-this-kasan-gce 2021/09/26 01:14 net 7fe7f3182a0d 8cac236e .config log report info WARNING: ODEBUG bug in __do_softirq
ci-upstream-kasan-gce-selinux-root 2020/11/04 22:29 upstream 4ef8451b3326 64069d48 .config log report info
ci-upstream-kasan-gce 2020/09/28 01:29 upstream 16bc1d5432eb 5dd8aee8 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/03/02 18:33 upstream 63623fd44972 c88c7b75 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/19 13:30 upstream 6d906f998179 b0e8efcb .config log report
ci-upstream-kasan-gce-smack-root 2019/03/17 03:36 upstream a9dce6679d73 bab43553 .config log report
ci-upstream-kasan-gce-root 2019/03/03 20:54 upstream c027c7cf1577 1c0e457a .config log report
ci-upstream-kasan-gce 2019/02/21 19:21 upstream f6163d67cc31 3133098b .config log report
ci-upstream-kasan-gce-selinux-root 2019/02/15 15:00 upstream cb5b020a8d38 f6f233c0 .config log report
ci-upstream-kasan-gce-smack-root 2019/01/26 22:52 upstream ba6069759381 c73f090a .config log report
ci-upstream-kasan-gce-root 2019/01/17 07:19 upstream 47bfa6d9dc8c c2faf9b2 .config log report
ci-upstream-kasan-gce-root 2019/01/16 09:28 upstream 7939f8beecf1 b47fa78d .config log report
ci-upstream-kasan-gce-selinux-root 2018/12/17 10:38 upstream 7566ec393f41 def91db3 .config log report
ci-upstream-kasan-gce-386 2020/02/02 23:00 upstream 46d6b7becb1d 93e5e335 .config log report
ci-qemu-upstream-386 2020/01/15 13:02 upstream 95e20af9fb9c fa12bd3c .config log report
ci-upstream-bpf-next-kasan-gce 2018/07/06 11:01 bpf-next 6fcf9b1d4d6c 18403e65 .config log report
ci-upstream-bpf-next-kasan-gce 2018/07/06 02:34 bpf-next 6fcf9b1d4d6c d3b2a0e2 .config log report
ci-upstream-bpf-next-kasan-gce 2018/06/29 07:42 bpf-next 509fda105ba8 dba0b50e .config log report
ci-upstream-bpf-next-kasan-gce 2018/06/26 20:14 bpf-next 651b4513bdd2 b0294c53 .config log report
ci-upstream-bpf-next-kasan-gce 2018/06/24 04:17 bpf-next f0dc7f9c6dd9 2064fc5c .config log report
ci-upstream-bpf-next-kasan-gce 2018/02/16 21:53 bpf-next 0b6b8a3dd86d c8b3f7c1 .config log report
ci-upstream-bpf-next-kasan-gce 2018/02/15 22:43 bpf-next 0b6b8a3dd86d c8b3f7c1 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/01/19 00:38 linux-next 9673b4aa71ca 2103a236 .config log report
ci-upstream-linux-next-kasan-gce-root 2018/10/06 13:46 linux-next 12ffaa1197f5 8b311eaf .config log report
* Struck through repros no longer work on HEAD.