------------[ cut here ]------------
kernfs_put: syz7/pids.events: released with incorrect active_ref 0
WARNING: CPU: 1 PID: 15028 at fs/kernfs/dir.c:531 kernfs_put.part.0+0x433/0x540
Modules linked in:
CPU: 1 PID: 15028 Comm: kworker/1:2 Not tainted 5.19.0-rc5-next-20220705 #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 73 0b a7 ff 48 8b 14 24 44 89 f1 4c 89 fe 48 c7 c7 e0 58 72 84 e8 93 ac 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:ffff888038c3fbd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88800de30000 RSI: ffffffff812bd348 RDI: ffffed1007187f6d
RBP: ffff88803616a778 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803616a740
R13: ffff8880362873a0 R14: 0000000000000000 R15: ffff88801546fed8
------------[ cut here ]------------
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
WARNING: CPU: 0 PID: 43650 at fs/kernfs/dir.c:504 kernfs_get.part.0+0x69/0x80
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Modules linked in:
CR2: 00007fef8659f541 CR3: 000000003d158000 CR4: 0000000000350ee0
CPU: 0 PID: 43650 Comm: syz-executor.7 Not tainted 5.19.0-rc5-next-20220705 #1
Call Trace:
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:kernfs_get.part.0+0x69/0x80
kernfs_put+0x42/0x50
Code: 31 ff 89 ee e8 c8 0c a7 ff 85 ed 74 18 e8 ef 0f a7 ff be 04 00 00 00 48 89 df e8 d2 ba d9 ff f0 ff 03 5b 5d c3 e8 d7 0f a7 ff <0f> 0b eb df 48 89 df e8 7b b7 d9 ff eb c6 66 0f 1f 84 00 00 00 00
kernfs_notify_workfn+0x417/0x560
RSP: 0018:ffff88803d2ffa40 EFLAGS: 00010093
RAX: 0000000000000000 RBX: ffff88803616a740 RCX: 0000000000000000
RDX: ffff888038e10000 RSI: ffffffff819de5c9 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 1ffffffff0a01e40 R14: ffff88803616a740 R15: ffff88800ec96130
FS: 0000555555c55400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ec1af02e18 CR3: 000000003d158000 CR4: 0000000000350ef0
process_one_work+0xa0f/0x1690
Call Trace:
kernfs_get+0x1b/0x30
kernfs_notify+0x180/0x350
cgroup_file_notify+0xf5/0x1a0
worker_thread+0x637/0x1250
pids_can_fork+0x22f/0x370
cgroup_can_fork+0x332/0x11b0
kthread+0x2ed/0x3a0
copy_process+0x4023/0x6d60
ret_from_fork+0x22/0x30
kernel_clone+0xe7/0xa60
irq event stamp: 1820441
hardirqs last enabled at (1820451): [] console_emit_next_record.constprop.0+0x648/0x800
__do_sys_clone+0xba/0x100
hardirqs last disabled at (1820460): [] sysvec_apic_timer_interrupt+0xb/0xc0
softirqs last enabled at (1820056): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (1819995): [] __irq_exit_rcu+0x113/0x170
do_syscall_64+0x3b/0x90
---[ end trace 0000000000000000 ]---
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f334b2bcf41
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007ffc3584d6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f3348810700 RCX: 00007f334b2bcf41
RDX: 00007f33488109d0 RSI: 00007f33488102f0 RDI: 00000000003d0f00
RBP: 00007ffc3584d8f0 R08: 00007f3348810700 R09: 00007f3348810700
R10: 00007f33488109d0 R11: 0000000000000206 R12: 00007ffc3584d76e
R13: 00007ffc3584d76f R14: 00007f3348810300 R15: 0000555555c56d50
irq event stamp: 5744
hardirqs last enabled at (5743): [] _raw_spin_unlock_irq+0x1f/0x40
hardirqs last disabled at (5744): [] _raw_spin_lock_irqsave+0x4e/0x50
softirqs last enabled at (5722): [] fpu_clone+0x3be/0xb00
softirqs last disabled at (5720): [] fpu_clone+0x331/0xb00
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: use-after-free in kernfs_get.part.0+0x5e/0x80
Write of size 4 at addr ffff88803616a740 by task syz-executor.7/43650
CPU: 0 PID: 43650 Comm: syz-executor.7 Tainted: G W 5.19.0-rc5-next-20220705 #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
kasan_check_range+0x35/0x1b0
kernfs_get.part.0+0x5e/0x80
kernfs_get+0x1b/0x30
kernfs_notify+0x180/0x350
cgroup_file_notify+0xf5/0x1a0
pids_can_fork+0x22f/0x370
cgroup_can_fork+0x332/0x11b0
copy_process+0x4023/0x6d60
kernel_clone+0xe7/0xa60
__do_sys_clone+0xba/0x100
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f334b2bcf41
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007ffc3584d6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f3348810700 RCX: 00007f334b2bcf41
RDX: 00007f33488109d0 RSI: 00007f33488102f0 RDI: 00000000003d0f00
RBP: 00007ffc3584d8f0 R08: 00007f3348810700 R09: 00007f3348810700
R10: 00007f33488109d0 R11: 0000000000000206 R12: 00007ffc3584d76e
R13: 00007ffc3584d76f R14: 00007f3348810300 R15: 0000555555c56d50
Allocated by task 301:
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 15028:
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 ffff88803616a740
which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 0 bytes inside of
168-byte region [ffff88803616a740, ffff88803616a7e8)
The buggy address belongs to the physical page:
page:0000000049178008 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3616a
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:
ffff88803616a600: 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00 00
ffff88803616a680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88803616a700: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb
^
ffff88803616a780: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc
ffff88803616a800: fc fc fc fc fc 00 00 00 00 00 00 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: fffff2a02603ffc8
#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: 144 Comm: systemd-timesyn Tainted: G B W 5.19.0-rc5-next-20220705 #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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff8880096e7c20 EFLAGS: 00010286
RAX: fffff2a02603ffc0 RBX: 0001b08980ffffea RCX: 000000000000e141
RDX: 0001b08a00ffffea RSI: ffff888036cef5a5 RDI: ffff888008035a00
RBP: 0000000000000000 R08: 0001b08980ffffea R09: ffffffff8177a3ef
R10: ffffea0000db3bc0 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff8880096e7c60 R14: 0000000000000000 R15: ffff888036cef5a5
FS: 00007fcb3ba7a900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff2a02603ffc8 CR3: 000000001bcdc000 CR4: 0000000000350ee0
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_lru+0x2e0/0x7e0
sock_alloc_inode+0x23/0x1d0
alloc_inode+0x63/0x240
new_inode_pseudo+0x13/0x80
sock_alloc+0x3c/0x260
__sock_create+0xb9/0x750
__sys_socket+0x12f/0x240
__x64_sys_socket+0x6f/0xb0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fcb3c370477
Code: 73 01 c3 48 8b 0d 19 ea 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 29 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e9 e9 0b 00 f7 d8 64 89 01 48
RSP: 002b:00007fff341a2b18 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00005615ce8d4690 RCX: 00007fcb3c370477
RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000001
RBP: 00007fff341a2c40 R08: 0000000000000000 R09: 000000000000000c
R10: 00007fff341a2b80 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000016
Modules linked in:
CR2: fffff2a02603ffc8
---[ 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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff8880096e7c20 EFLAGS: 00010286
RAX: fffff2a02603ffc0 RBX: 0001b08980ffffea RCX: 000000000000e141
RDX: 0001b08a00ffffea RSI: ffff888036cef5a5 RDI: ffff888008035a00
RBP: 0000000000000000 R08: 0001b08980ffffea R09: ffffffff8177a3ef
R10: ffffea0000db3bc0 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff8880096e7c60 R14: 0000000000000000 R15: ffff888036cef5a5
FS: 00007fcb3ba7a900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff2a02603ffc8 CR3: 000000001bcdc000 CR4: 0000000000350ee0
general protection fault, probably for non-canonical address 0x3ffe9e5a06a07c8: 0000 [#2] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 44802 Comm: syz-executor.7 Tainted: G B D W 5.19.0-rc5-next-20220705 #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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff888037cc7a80 EFLAGS: 00010207
RAX: 03ffe9e5a06a07c0 RBX: ffff81e81a81ffff RCX: 1ffffffff0b1d5b5
RDX: ffff81e89a81ffff RSI: 0000000000000008 RDI: ffffffff81770c31
RBP: 0000000000000000 R08: ffff81e81a81ffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888037cc7ac0 R14: 0000000000000000 R15: ffff8880139f1d86
FS: 0000555555c55400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f628995c9c8 CR3: 000000003ceb0000 CR4: 0000000000350ef0
Call Trace:
kasan_quarantine_reduce+0x180/0x200
__kasan_slab_alloc+0x78/0x80
kmem_cache_alloc_node+0x1bf/0x4a0
copy_process+0x4d2/0x6d60
kernel_clone+0xe7/0xa60
__do_sys_clone+0xba/0x100
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f334b2bcf41
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007ffc3584d6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f3348810700 RCX: 00007f334b2bcf41
RDX: 00007f33488109d0 RSI: 00007f33488102f0 RDI: 00000000003d0f00
RBP: 00007ffc3584d8f0 R08: 00007f3348810700 R09: 00007f3348810700
R10: 00007f33488109d0 R11: 0000000000000206 R12: 00007ffc3584d76e
R13: 00007ffc3584d76f R14: 00007f3348810300 R15: 0000555555c56d50
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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff8880096e7c20 EFLAGS: 00010286
RAX: fffff2a02603ffc0 RBX: 0001b08980ffffea RCX: 000000000000e141
RDX: 0001b08a00ffffea RSI: ffff888036cef5a5 RDI: ffff888008035a00
RBP: 0000000000000000 R08: 0001b08980ffffea R09: ffffffff8177a3ef
R10: ffffea0000db3bc0 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff8880096e7c60 R14: 0000000000000000 R15: ffff888036cef5a5
FS: 0000555555c55400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f628995c9c8 CR3: 000000003ceb0000 CR4: 0000000000350ef0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 213 at mm/kasan/shadow.c:134 kasan_unpoison+0x42/0x50
Modules linked in:
CPU: 0 PID: 213 Comm: rs:main Q:Reg Tainted: G B D W 5.19.0-rc5-next-20220705 #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:ffff88800fe0f898 EFLAGS: 00010206
RAX: 0000000003113600 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000170 RDI: ffff8880139f1d86
RBP: ffff88800784f780 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880139f1d86
R13: 0000000000092c40 R14: 0000000000092c40 R15: 0000000000092c40
FS: 00007f1427fff700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f628995c9c8 CR3: 000000000fc7c000 CR4: 0000000000350ef0
Call Trace:
__kasan_slab_alloc+0x2c/0x80
kmem_cache_alloc+0x1b1/0x490
__create_object.isra.0+0x3d/0xc10
kmem_cache_alloc+0x247/0x490
jbd2__journal_start+0x18c/0x8c0
__ext4_journal_start_sb+0x38d/0x470
ext4_dirty_inode+0x9d/0x110
__mark_inode_dirty+0x455/0xf00
generic_update_time+0x21d/0x350
file_modified_flags+0x2d0/0x320
ext4_buffered_write_iter+0xf9/0x330
ext4_file_write_iter+0x3d5/0x1820
new_sync_write+0x31b/0x4e0
vfs_write+0x7b9/0xac0
ksys_write+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f142d635fef
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48
RSP: 002b:00007f1427ffe830 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f142d635fef
RDX: 0000000000001000 RSI: 00007f141c022d50 RDI: 0000000000000007
RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f141c022d50
R13: 0000000000000000 R14: 000000000000004e R15: 00007f141c022ab0
irq event stamp: 34780
hardirqs last enabled at (34779): [] syscall_enter_from_user_mode+0x1d/0x50
hardirqs last disabled at (34780): [] __schedule+0x11d9/0x24a0
softirqs last enabled at (34668): [] __mark_inode_dirty+0xba5/0xf00
softirqs last disabled at (34664): [] wb_wakeup_delayed+0x62/0xf0
---[ end trace 0000000000000000 ]---
BUG: unable to handle page fault for address: ffffee080003ec08
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0
Oops: 0000 [#3] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 44816 Comm: syz-executor.0 Tainted: G B D W 5.19.0-rc5-next-20220705 #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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff88803dd879e0 EFLAGS: 00010286
RAX: ffffee080003ec00 RBX: 00008a8000fb0000 RCX: 1ffffffff0b1d5b5
RDX: 00008a8080fb0000 RSI: 0000000000000008 RDI: ffffffff81770c31
RBP: 0000000000000000 R08: 00008a8000fb0000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff88803dd87a20 R14: 0000000000000000 R15: ffff8880152d1be2
FS: 0000555556674400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffee080003ec08 CR3: 0000000038d8e000 CR4: 0000000000350ef0
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
copy_process+0x4d2/0x6d60
kernel_clone+0xe7/0xa60
__do_sys_clone+0xba/0x100
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f6ef11f3f41
Code: 48 85 ff 74 3d 48 85 f6 74 38 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 7c 13 74 01 c3 31 ed 58 5f ff d0 48 89 c7 b8 3c 00 00 00
RSP: 002b:00007fffda4cb6b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007f6eee747700 RCX: 00007f6ef11f3f41
RDX: 00007f6eee7479d0 RSI: 00007f6eee7472f0 RDI: 00000000003d0f00
RBP: 00007fffda4cb8f0 R08: 00007f6eee747700 R09: 00007f6eee747700
R10: 00007f6eee7479d0 R11: 0000000000000206 R12: 00007fffda4cb76e
R13: 00007fffda4cb76f R14: 00007f6eee747300 R15: 0000555556675d50
Modules linked in:
CR2: ffffee080003ec08
---[ 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 63 84 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 41 84 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:ffff8880096e7c20 EFLAGS: 00010286
RAX: fffff2a02603ffc0 RBX: 0001b08980ffffea RCX: 000000000000e141
RDX: 0001b08a00ffffea RSI: ffff888036cef5a5 RDI: ffff888008035a00
RBP: 0000000000000000 R08: 0001b08980ffffea R09: ffffffff8177a3ef
R10: ffffea0000db3bc0 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff8880096e7c60 R14: 0000000000000000 R15: ffff888036cef5a5
FS: 0000555556674400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffee080003ec08 CR3: 0000000038d8e000 CR4: 0000000000350ef0
------------[ cut here ]------------
WARNING: CPU: 1 PID: 213 at kernel/rcu/tree.c:2776 call_rcu+0x6c6/0xa20
Modules linked in:
CPU: 1 PID: 213 Comm: rs:main Q:Reg Tainted: G B D W 5.19.0-rc5-next-20220705 #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 9f d2 00 00 e9 2a fa ff ff <0f> 0b e9 50 f9 ff ff e8 3e 24 ff ff e9 05 fc ff ff e8 44 3a 46 00
RSP: 0018:ffff88800fe0f898 EFLAGS: 00010206
RAX: 0000000000000000 RBX: ffff8880139f1e06 RCX: ffffffff817afc85
RDX: 1ffff1100273e3b8 RSI: ffffffff817af5a0 RDI: 0000000000000006
RBP: ffff88800fe0f920 R08: 0000000000000001 R09: ffff8880139f1e19
R10: ffffed100273e3c3 R11: 0000000000000001 R12: ffffffff817af5a0
R13: ffffffff81bb529b R14: ffff88800c8cc500 R15: ffff88800c8cc500
FS: 00007f1427fff700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6b585403d0 CR3: 000000000fc7c000 CR4: 0000000000350ee0
Call Trace:
kmem_cache_free+0xc1/0x600
jbd2_journal_stop+0x5cb/0xed0
__ext4_journal_stop+0xde/0x1f0
ext4_dirty_inode+0xe8/0x110
__mark_inode_dirty+0x455/0xf00
generic_update_time+0x21d/0x350
file_modified_flags+0x2d0/0x320
ext4_buffered_write_iter+0xf9/0x330
ext4_file_write_iter+0x3d5/0x1820
new_sync_write+0x31b/0x4e0
vfs_write+0x7b9/0xac0
ksys_write+0x127/0x250
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f142d635fef
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48
RSP: 002b:00007f1427ffe830 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000001000 RCX: 00007f142d635fef
RDX: 0000000000001000 RSI: 00007f141c022d50 RDI: 0000000000000007
RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f141c022d50
R13: 0000000000000000 R14: 000000000000004e R15: 00007f141c022ab0
irq event stamp: 34780
hardirqs last enabled at (34779): [] syscall_enter_from_user_mode+0x1d/0x50
hardirqs last disabled at (34780): [] __schedule+0x11d9/0x24a0
softirqs last enabled at (34668): [] __mark_inode_dirty+0xba5/0xf00
softirqs last disabled at (34664): [] wb_wakeup_delayed+0x62/0xf0
---[ end trace 0000000000000000 ]---
----------------
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 63 84 7b 03 sub 0x37b8463(%rip),%rax # 0x37b847a
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 41 84 7b 03 add 0x37b8441(%rip),%rax # 0x37b846a
* 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