------------[ cut here ]------------
kernfs_put: syz3/pids.events: released with incorrect active_ref 0
WARNING: CPU: 0 PID: 32051 at fs/kernfs/dir.c:531 kernfs_put.part.0+0x433/0x540
Modules linked in:
CPU: 0 PID: 32051 Comm: kworker/0:1 Not tainted 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Workqueue: events kernfs_notify_workfn
RIP: 0010:kernfs_put.part.0+0x433/0x540
Code: 03 80 3c 18 00 0f 85 ea 00 00 00 4d 8b 7d 38 e8 53 fc a6 ff 48 8b 14 24 44 89 f1 4c 89 fe 48 c7 c7 e0 5b 72 84 e8 13 aa 6c 02 <0f> 0b e9 b9 fc ff ff 48 89 ef e8 0e b3 d9 ff e9 c1 fd ff ff e8 04
RSP: 0018:ffff88804ae37bd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88804bd59ac0 RSI: ffffffff812bd348 RDI: ffffed10095c6f6d
RBP: ffff888044f86120 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888044f860e8
R13: ffff88800fed1cb0 R14: 0000000000000000 R15: ffff88801b5d5320
FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000042c24000 CR4: 0000000000350ef0
Call Trace:
kernfs_put+0x42/0x50
kernfs_notify_workfn+0x417/0x560
process_one_work+0xa0f/0x1690
worker_thread+0x637/0x1250
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
irq event stamp: 405469
hardirqs last enabled at (405479): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (405490): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (405048): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (404985): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: use-after-free in kernfs_notify+0x327/0x350
Read of size 2 at addr ffff888044f86180 by task ksoftirqd/0/13
CPU: 0 PID: 13 Comm: ksoftirqd/0 Tainted: G W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack_lvl+0x8b/0xb3
print_report.cold+0x5e/0x5e1
kasan_report+0xb1/0x1b0
kernfs_notify+0x327/0x350
cgroup_file_notify+0xf5/0x1a0
call_timer_fn+0x17d/0x5f0
__run_timers.part.0+0x65e/0xa50
run_timer_softirq+0xae/0x1a0
__do_softirq+0x1c8/0x8cc
run_ksoftirqd+0x2d/0x60
smpboot_thread_fn+0x66f/0xa00
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
Allocated by task 568:
kasan_save_stack+0x1e/0x40
__kasan_slab_alloc+0x66/0x80
kmem_cache_alloc+0x1b1/0x490
__kernfs_new_node+0xd4/0x8b0
kernfs_new_node+0x93/0x120
__kernfs_create_file+0x51/0x350
cgroup_addrm_files+0x3e2/0x9d0
css_populate_dir+0x19b/0x450
cgroup_apply_control_enable+0x3ae/0xa40
cgroup_mkdir+0x824/0x11f0
kernfs_iop_mkdir+0x149/0x1d0
vfs_mkdir+0x417/0x6a0
do_mkdirat+0x17b/0x2e0
__x64_sys_mkdir+0xf2/0x140
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Freed by task 32051:
kasan_save_stack+0x1e/0x40
kasan_set_track+0x21/0x30
kasan_set_free_info+0x20/0x30
__kasan_slab_free+0x108/0x190
kmem_cache_free+0xfb/0x600
kernfs_put.part.0+0x2c7/0x540
kernfs_put+0x42/0x50
kernfs_notify_workfn+0x417/0x560
process_one_work+0xa0f/0x1690
worker_thread+0x637/0x1250
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
The buggy address belongs to the object at ffff888044f860e8
which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 152 bytes inside of
168-byte region [ffff888044f860e8, ffff888044f86190)
The buggy address belongs to the physical page:
page:000000005dd6df10 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x44f86
flags: 0x100000000000200(slab|node=0|zone=1)
raw: 0100000000000200 0000000000000000 dead000000000122 ffff8880080358c0
raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff888044f86080: 00 00 00 00 00 fc fc fc fc fc fc fc fc fa fb fb
ffff888044f86100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888044f86180: fb fb fc fc fc fc fc fc fc fc 00 00 00 00 00 00
^
ffff888044f86200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc
ffff888044f86280: fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: ffffebdc05f44e48
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 282 Comm: syz-fuzzer Tainted: G B W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888017767800 EFLAGS: 00010282
RAX: ffffebdc05f44e40 RBX: ffffff817d1397ff RCX: 0000000000000000
RDX: ffffff81fd1397ff RSI: 0000000000000004 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffff817d1397ff R09: 0000000000000000
R10: ffffed1000f09d20 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888017767840 R14: 0000000000000000 R15: ffff88800977b04f
FS: 000000c000031590(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebdc05f44e48 CR3: 000000001883e000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kasan_quarantine_reduce+0x180/0x200
__kasan_slab_alloc+0x78/0x80
kmem_cache_alloc+0x1b1/0x490
__create_object.isra.0+0x3d/0xc10
kmem_cache_alloc_node+0x255/0x4a0
__alloc_skb+0x20c/0x340
tcp_stream_alloc_skb+0x38/0x580
tcp_sendmsg_locked+0xab0/0x2e60
tcp_sendmsg+0x2b/0x40
inet_sendmsg+0xb5/0x140
sock_sendmsg+0x138/0x190
sock_write_iter+0x28c/0x3d0
new_sync_write+0x31b/0x4e0
vfs_write+0x7b9/0xac0
ksys_write+0x1e8/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x4b0f4b
Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 5b c3 f8 ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
RSP: 002b:000000c0005bf360 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004b0f4b
RDX: 000000000000001c RSI: 000000c00000a200 RDI: 0000000000000006
RBP: 000000c0005bf3b0 R08: 000000c00000a201 R09: 000000000000001c
R10: 000000c0002cc000 R11: 0000000000000202 R12: 000000000000011e
R13: 000000c000428000 R14: 000000000000000f R15: 0000000000007525
Modules linked in:
CR2: ffffebdc05f44e48
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888017767800 EFLAGS: 00010282
RAX: ffffebdc05f44e40 RBX: ffffff817d1397ff RCX: 0000000000000000
RDX: ffffff81fd1397ff RSI: 0000000000000004 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffff817d1397ff R09: 0000000000000000
R10: ffffed1000f09d20 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888017767840 R14: 0000000000000000 R15: ffff88800977b04f
FS: 000000c000031590(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebdc05f44e48 CR3: 000000001883e000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
------------[ cut here ]------------
WARNING: CPU: 1 PID: 282 at mm/kasan/shadow.c:134 kasan_unpoison+0x42/0x50
Modules linked in:
CPU: 1 PID: 282 Comm: syz-fuzzer Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kasan_unpoison+0x42/0x50
Code: 89 fb 48 83 c6 01 e8 7d fe ff ff 48 89 e8 83 e0 07 74 14 48 ba 00 00 00 00 00 fc ff df 48 01 eb 48 c1 eb 03 88 04 13 5b 5d c3 <0f> 0b c3 66 66 2e 0f 1f 84 00 00 00 00 00 41 57 48 89 f8 41 56 48
RSP: 0018:ffff88806cf09a40 EFLAGS: 00010202
RAX: ffff88800977b04f RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000170 RDI: ffff88800977b04f
RBP: ffff88800784f780 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800977b04f
R13: 0000000000092820 R14: 0000000000092820 R15: 0000000000092820
FS: 000000c000031590(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebdc05f44e48 CR3: 000000001883e000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
__kasan_slab_alloc+0x2c/0x80
kmem_cache_alloc+0x1b1/0x490
__create_object.isra.0+0x3d/0xc10
__kmalloc_node_track_caller+0x278/0x470
__alloc_skb+0xdd/0x340
__netdev_alloc_skb+0x72/0x3e0
__ieee80211_beacon_get+0x387/0x12d0
ieee80211_beacon_get_tim+0x95/0x4e0
mac80211_hwsim_beacon_tx+0x1a7/0xa10
__iterate_interfaces+0x2d3/0x560
ieee80211_iterate_active_interfaces_atomic+0x70/0x180
mac80211_hwsim_beacon+0xfd/0x200
__hrtimer_run_queues+0x5de/0xbc0
hrtimer_run_softirq+0x172/0x340
__do_softirq+0x1c8/0x8cc
__irq_exit_rcu+0x113/0x170
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x8e/0xc0
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 8e 51 0d fd 48 89 ef e8 f6 d2 0d fd e8 31 a9 2f fd fb bf 01 00 00 00 d6 74 03 fd 65 8b 05 4f 51 e6 7b 85 c0 74 02 5d c3 0f 1f 44 00
RSP: 0018:ffff888017767e38 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff0b1d66d
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff888008c3dc80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1001187b90 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000009 R14: ffff88800f9b8000 R15: 0000000057ac6e9d
do_exit+0x187/0x27d0
make_task_dead+0x102/0x120
rewind_stack_and_make_dead+0x17/0x17
RIP: 0033:0x4b0f4b
Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 5b c3 f8 ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
RSP: 002b:000000c0005bf360 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004b0f4b
RDX: 000000000000001c RSI: 000000c00000a200 RDI: 0000000000000006
RBP: 000000c0005bf3b0 R08: 000000c00000a201 R09: 000000000000001c
R10: 000000c0002cc000 R11: 0000000000000202 R12: 000000000000011e
R13: 000000c000428000 R14: 000000000000000f R15: 0000000000007525
irq event stamp: 684872
hardirqs last enabled at (684871): [] syscall_enter_from_user_mode+0x1d/0x50
hardirqs last disabled at (684872): [] __schedule+0x11d9/0x24a0
softirqs last enabled at (684550): [] __mark_inode_dirty+0xba5/0xf00
softirqs last disabled at (684546): [] wb_wakeup_delayed+0x62/0xf0
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 282 at kernel/rcu/tree.c:2776 call_rcu+0x6c6/0xa20
Modules linked in:
CPU: 1 PID: 282 Comm: syz-fuzzer Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:call_rcu+0x6c6/0xa20
Code: c1 ea 03 80 3c 02 00 0f 85 c0 02 00 00 48 8b 85 a0 00 00 00 48 85 c0 0f 85 37 fa ff ff 4c 89 ff e8 4f d2 00 00 e9 2a fa ff ff <0f> 0b e9 50 f9 ff ff e8 ee 21 ff ff e9 05 fc ff ff e8 14 49 46 00
RSP: 0018:ffff88806cf09ba0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: ffff88800977b0cf RCX: ffffffff817b0f05
RDX: 1ffff110012ef611 RSI: ffffffff817b0820 RDI: 0000000000000007
RBP: ffff88806cf09c28 R08: 0000000000000001 R09: ffff88800977b0e2
R10: ffffed10012ef61c R11: 0000000000000001 R12: ffffffff817b0820
R13: ffffffff8338f3f6 R14: 0000000000000000 R15: ffff888007841c80
FS: 000000c000031590(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffebdc05f44e48 CR3: 000000001883e000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kfree+0xbb/0x5d0
skb_release_data+0x686/0x7b0
consume_skb+0xc2/0x160
mac80211_hwsim_tx_frame+0x1f6/0x2a0
mac80211_hwsim_beacon_tx+0x53b/0xa10
__iterate_interfaces+0x2d3/0x560
ieee80211_iterate_active_interfaces_atomic+0x70/0x180
mac80211_hwsim_beacon+0xfd/0x200
__hrtimer_run_queues+0x5de/0xbc0
hrtimer_run_softirq+0x172/0x340
__do_softirq+0x1c8/0x8cc
__irq_exit_rcu+0x113/0x170
irq_exit_rcu+0x5/0x20
sysvec_apic_timer_interrupt+0x8e/0xc0
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40
Code: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 8e 51 0d fd 48 89 ef e8 f6 d2 0d fd e8 31 a9 2f fd fb bf 01 00 00 00 d6 74 03 fd 65 8b 05 4f 51 e6 7b 85 c0 74 02 5d c3 0f 1f 44 00
RSP: 0018:ffff888017767e38 EFLAGS: 00000246
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffffffff0b1d66d
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffff888008c3dc80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed1001187b90 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000009 R14: ffff88800f9b8000 R15: 0000000057ac6e9d
do_exit+0x187/0x27d0
make_task_dead+0x102/0x120
rewind_stack_and_make_dead+0x17/0x17
RIP: 0033:0x4b0f4b
Code: ff e9 69 ff ff ff cc cc cc cc cc cc cc cc cc e8 5b c3 f8 ff 48 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
RSP: 002b:000000c0005bf360 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004b0f4b
RDX: 000000000000001c RSI: 000000c00000a200 RDI: 0000000000000006
RBP: 000000c0005bf3b0 R08: 000000c00000a201 R09: 000000000000001c
R10: 000000c0002cc000 R11: 0000000000000202 R12: 000000000000011e
R13: 000000c000428000 R14: 000000000000000f R15: 0000000000007525
irq event stamp: 684872
hardirqs last enabled at (684871): [] syscall_enter_from_user_mode+0x1d/0x50
hardirqs last disabled at (684872): [] __schedule+0x11d9/0x24a0
softirqs last enabled at (684550): [] __mark_inode_dirty+0xba5/0xf00
softirqs last disabled at (684546): [] wb_wakeup_delayed+0x62/0xf0
---[ end trace 0000000000000000 ]---
general protection fault, probably for non-canonical address 0xefdffbfffff05da2: 0000 [#2] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0x7effffffff82ed10-0x7effffffff82ed17]
CPU: 0 PID: 53015 Comm: syz-executor Tainted: G B D W 5.19.0-rc5-next-20220706 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lookup_object+0x5d/0x120
Code: 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 5b 10 48 85 db 74 54 48 8d 7b 30 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 75 73 48 8b 6b 30 4c 39 ed 77 c6 48 8d 7b 38 48 89
RSP: 0018:ffff888047e57b60 EFLAGS: 00010013
RAX: 0fdffffffff05da2 RBX: 7effffffff82ece6 RCX: ffffffff817b23cd
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 7effffffff82ed16
RBP: 4effffffff81168f R08: 0000000000000000 R09: ffff888048e53587
R10: ffffed10091ca6b0 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88801affea60 R14: ffff88801affea60 R15: 0000000000000086
FS: 000055555738b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb387b2650 CR3: 000000004a1a8000 CR4: 0000000000350ef0
Call Trace:
scan_block+0xdc/0x2a0
scan_gray_list+0x1eb/0x3f0
kmemleak_scan+0x85a/0x16f0
kmemleak_write+0x56c/0x680
full_proxy_write+0x11d/0x190
vfs_write+0x264/0xac0
ksys_write+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fef012265c3
Code: 16 00 00 00 eb ae 90 b8 6e 00 00 00 eb a6 e8 44 ef 04 00 0f 1f 40 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007ffc0df40e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffc0df41478 RCX: 00007fef012265c3
RDX: 0000000000000004 RSI: 00007fef012dced9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000909 R09: 00007ffc0dfef080
R10: 00007ffc0dfef090 R11: 0000000000000246 R12: 00007fef01228b10
R13: 00007ffc0df42ee3 R14: 0000000000000000 R15: 0000000000234cb0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:qlist_free_all+0xaf/0x190
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 76 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 76 7b 03 <48> 8b 48 08 48 89 c2 f6 c1 01 0f 85 b6 00 00 00 0f 1f 44 00 00 48
RSP: 0018:ffff888017767800 EFLAGS: 00010282
RAX: ffffebdc05f44e40 RBX: ffffff817d1397ff RCX: 0000000000000000
RDX: ffffff81fd1397ff RSI: 0000000000000004 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffff817d1397ff R09: 0000000000000000
R10: ffffed1000f09d20 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888017767840 R14: 0000000000000000 R15: ffff88800977b04f
FS: 000055555738b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb387b2650 CR3: 000000004a1a8000 CR4: 0000000000350ef0
note: syz-executor[53015] exited with preempt_count 2
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 4c 01 c2 add %r8,%rdx
3: 0f 82 f0 00 00 00 jb 0xf9
9: 48 c7 c0 00 00 00 80 mov $0xffffffff80000000,%rax
10: 48 2b 05 c3 76 7b 03 sub 0x37b76c3(%rip),%rax # 0x37b76da
17: 48 01 d0 add %rdx,%rax
1a: 48 c1 e8 0c shr $0xc,%rax
1e: 48 c1 e0 06 shl $0x6,%rax
22: 48 03 05 a1 76 7b 03 add 0x37b76a1(%rip),%rax # 0x37b76ca
* 29: 48 8b 48 08 mov 0x8(%rax),%rcx <-- trapping instruction
2d: 48 89 c2 mov %rax,%rdx
30: f6 c1 01 test $0x1,%cl
33: 0f 85 b6 00 00 00 jne 0xef
39: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3e: 48 rex.W