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ODEBUG: free active (active state 0) object: ffff8880375e8890 object type: timer_list hint: rose_t0timer_expiry+0x0/0x150 include/linux/skbuff.h:2927
WARNING: lib/debugobjects.c:612 at debug_print_object+0x18e/0x2a0 lib/debugobjects.c:612, CPU#2: syz.9.3228/15666
Modules linked in:
CPU: 2 UID: 0 PID: 15666 Comm: syz.9.3228 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:debug_print_object+0x19b/0x2a0 lib/debugobjects.c:612
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 48 8d 3d f2 0d d2 0b 41 56 48 8b 14 dd 60 47 fa 8b 4c 89 e6 <67> 48 0f b9 3a 58 83 05 9c f5 c7 0b 01 48 83 c4 18 5b 5d 41 5c 41
RSP: 0018:ffffc90000648a18 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffffffff8bfa46a0 RSI: ffffffff8bfa42c0 RDI: ffffffff90c194c0
RBP: 0000000000000001 R08: ffff8880375e8890 R09: ffffffff8b92b900
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8bfa42c0
R13: ffffffff8b92b940 R14: ffffffff8a662a20 R15: ffffc90000648b18
FS: 00007fcc949f66c0(0000) GS:ffff8880d67db000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc967e8600 CR3: 0000000025a8b000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
debug_check_no_obj_freed+0x4da/0x630 lib/debugobjects.c:1129
slab_free_hook mm/slub.c:2471 [inline]
slab_free mm/slub.c:6674 [inline]
kfree+0x34c/0x690 mm/slub.c:6882
rose_neigh_put include/net/rose.h:166 [inline]
rose_timer_expiry+0x53f/0x630 net/rose/rose_timer.c:183
call_timer_fn+0x19a/0x590 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1799 [inline]
__run_timers+0x757/0xac0 kernel/time/timer.c:2373
__run_timer_base kernel/time/timer.c:2385 [inline]
__run_timer_base kernel/time/timer.c:2377 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2394
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2404
handle_softirqs+0x1ea/0x910 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0xef/0x150 kernel/softirq.c:723
irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x5e/0x330 kernel/locking/lockdep.c:5872
Code: 05 bb 32 01 12 83 f8 07 0f 87 a4 02 00 00 48 0f a3 05 46 2e d4 0e 0f 82 6f 02 00 00 8b 35 de 5e d4 0e 85 f6 0f 85 8a 00 00 00 <48> 8b 44 24 30 65 48 2b 05 5d 32 01 12 0f 85 b8 02 00 00 48 83 c4
RSP: 0018:ffffc90003da79a0 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8dc1f504 RDI: ffffffff8bfa35a0
RBP: ffff88801ca8f188 R08: ffffffff95ebcdd8 R09: 0000000000000003
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
down_write+0x8b/0x1f0 kernel/locking/rwsem.c:1590
kernfs_remove_by_name_ns+0x3d/0xf0 fs/kernfs/dir.c:1717
driver_sysfs_remove drivers/base/dd.c:476 [inline]
__device_release_driver drivers/base/dd.c:1278 [inline]
device_release_driver_internal+0x3f8/0x600 drivers/base/dd.c:1307
mac80211_hwsim_del_radio drivers/net/wireless/virtual/mac80211_hwsim.c:5917 [inline]
remove_user_radios drivers/net/wireless/virtual/mac80211_hwsim.c:6727 [inline]
mac80211_hwsim_netlink_notify drivers/net/wireless/virtual/mac80211_hwsim.c:6741 [inline]
mac80211_hwsim_netlink_notify+0x882/0x16c0 drivers/net/wireless/virtual/mac80211_hwsim.c:6732
notifier_call_chain+0x99/0x3b0 kernel/notifier.c:85
blocking_notifier_call_chain kernel/notifier.c:380 [inline]
blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:368
netlink_release+0x166a/0x1ff0 net/netlink/af_netlink.c:761
__sock_release+0xb3/0x260 net/socket.c:662
sock_close+0x1c/0x30 net/socket.c:1455
__fput+0x3ff/0xb40 fs/file_table.c:468
fput_close_sync+0x118/0x250 fs/file_table.c:573
__do_sys_close fs/open.c:1573 [inline]
__se_sys_close fs/open.c:1558 [inline]
__x64_sys_close+0x8b/0x120 fs/open.c:1558
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcc9679aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcc949f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007fcc96a15fa0 RCX: 00007fcc9679aeb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fcc96808c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcc96a16038 R14: 00007fcc96a15fa0 R15: 00007ffd50b60298
----------------
Code disassembly (best guess):
0: b8 00 00 00 00 mov $0x0,%eax
5: 00 fc add %bh,%ah
7: ff lcall (bad)
8: df 48 89 fisttps -0x77(%rax)
b: fa cli
c: 48 c1 ea 03 shr $0x3,%rdx
10: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
14: 75 4f jne 0x65
16: 48 8d 3d f2 0d d2 0b lea 0xbd20df2(%rip),%rdi # 0xbd20e0f
1d: 41 56 push %r14
1f: 48 8b 14 dd 60 47 fa mov -0x7405b8a0(,%rbx,8),%rdx
26: 8b
27: 4c 89 e6 mov %r12,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 58 pop %rax
30: 83 05 9c f5 c7 0b 01 addl $0x1,0xbc7f59c(%rip) # 0xbc7f5d3
37: 48 83 c4 18 add $0x18,%rsp
3b: 5b pop %rbx
3c: 5d pop %rbp
3d: 41 5c pop %r12
3f: 41 rex.B