------------[ cut here ]------------
kernfs_put: syz5/memory.events: released with incorrect active_ref 0
WARNING: CPU: 1 PID: 12986 at fs/kernfs/dir.c:531 kernfs_put.part.0+0x433/0x540
Modules linked in:
CPU: 1 PID: 12986 Comm: kworker/1:0 Not tainted 5.19.0-rc4-next-20220704 #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 9c 6c 02 <0f> 0b e9 b9 fc ff ff 48 89 ef e8 0e b3 d9 ff e9 c1 fd ff ff e8 04
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12986 at fs/kernfs/dir.c:504 kernfs_get.part.0+0x69/0x80
Modules linked in:
CPU: 1 PID: 12986 Comm: kworker/1:0 Not tainted 5.19.0-rc4-next-20220704 #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_get.part.0+0x69/0x80
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
RSP: 0018:ffff88806cf09c80 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff88803bcd1488 RCX: 0000000000000100
RDX: ffff8880476cb580 RSI: ffffffff819de5c9 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 1ffffffff0a01e40 R14: ffff88803bcd1488 R15: ffff888043f7c490
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb549b7a000 CR3: 000000001ac28000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
kernfs_get+0x1b/0x30
kernfs_notify+0x180/0x350
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
__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:console_emit_next_record.constprop.0+0x4c8/0x800
Code: 83 e2 07 38 d0 7f 08 84 c0 0f 85 d5 02 00 00 88 5d 00 e8 db 3e 00 00 31 ff 4c 89 f6 e8 01 5e 19 00 4d 85 f6 0f 85 76 01 00 00 03 61 19 00 48 b8 00 00 00 00 00 fc ff df 48 03 04 24 48 c7 00
RSP: 0018:ffff88804b577630 EFLAGS: 00000202
RAX: 000000000000cd6b RBX: 0000000000000000 RCX: ffffffff8128d13f
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88804b5777d8 R08: 0000000000000001 R09: ffffffff86a5e7c7
R10: fffffbfff0d4bcf8 R11: 0000000000000001 R12: 0000000000000001
R13: ffffffff86daaba0 R14: 0000000000000200 R15: ffffffff8549fd38
console_unlock+0x36c/0x590
vprintk_emit+0x1b9/0x550
vprintk+0x80/0x90
_printk+0xba/0xed
show_opcodes.cold+0x1c/0x21
show_iret_regs+0xd/0x33
__show_regs+0x1e/0x60
show_regs+0x2f/0x40
__warn+0xe2/0x190
report_bug+0x1bc/0x210
handle_bug+0x3c/0x60
exc_invalid_op+0x14/0x40
asm_exc_invalid_op+0x1b/0x20
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 9c 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:ffff88804b577bd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff8880476cb580 RSI: ffffffff812bd348 RDI: ffffed10096aef6d
RBP: ffff88803bcd14c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803bcd1488
R13: ffff88801ad3abc8 R14: 0000000000000000 R15: ffff8880149ece10
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: 52593
hardirqs last enabled at (52592): [] _raw_spin_unlock_irq+0x1f/0x40
hardirqs last disabled at (52593): [] _raw_spin_lock_irqsave+0x4e/0x50
softirqs last enabled at (52496): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (52589): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
RSP: 0018:ffff88804b577bd8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff8880476cb580 RSI: ffffffff812bd348 RDI: ffffed10096aef6d
RBP: ffff88803bcd14c0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88803bcd1488
R13: ffff88801ad3abc8 R14: 0000000000000000 R15: ffff8880149ece10
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb549b7a000 CR3: 000000001ac28000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
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: 53967
hardirqs last enabled at (53979): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (53990): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (53318): [] __irq_exit_rcu+0x113/0x170
softirqs last disabled at (53201): [] __irq_exit_rcu+0x113/0x170
---[ end trace 0000000000000000 ]---
==================================================================
BUG: KASAN: use-after-free in kernfs_notify+0x327/0x350
Read of size 2 at addr ffff88803bcd1520 by task syz-executor.5/15057
CPU: 1 PID: 15057 Comm: syz-executor.5 Tainted: G W 5.19.0-rc4-next-20220704 #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
try_charge_memcg+0x46c/0x1440
mem_cgroup_charge_skmem+0x7c/0x1b0
sock_setsockopt+0x2080/0x34a0
__sys_setsockopt+0x258/0x2a0
__x64_sys_setsockopt+0xba/0x150
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f9c08d51b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9c062c7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f9c08e64f60 RCX: 00007f9c08d51b19
RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 00007f9c08dabf6d R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8fa0dd4f R14: 00007f9c062c7300 R15: 0000000000022000
Allocated by task 298:
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 12986:
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 ffff88803bcd1488
which belongs to the cache kernfs_node_cache of size 168
The buggy address is located 152 bytes inside of
168-byte region [ffff88803bcd1488, ffff88803bcd1530)
The buggy address belongs to the physical page:
page:0000000067f667fb refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x3bcd1
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:
ffff88803bcd1400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
ffff88803bcd1480: fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88803bcd1500: fb fb fb fb fb fb fc fc fc fc fc fc fc fc 00 00
^
ffff88803bcd1580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff88803bcd1600: 00 00 00 fc fc fc fc fc fc fc fc 00 00 00 00 00
==================================================================
BUG: unable to handle page fault for address: fffff101fffe2208
#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: 0 PID: 112 Comm: systemd-journal Tainted: G B W 5.19.0-rc4-next-20220704 #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 82 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 82 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:ffff88801814fc70 EFLAGS: 00010286
RAX: fffff101fffe2200 RBX: 000148ffff88801d RCX: 000000000020000c
RDX: 000149007f88801d RSI: ffffea0000774940 RDI: 0000000040000000
RBP: 0000000000000000 R08: 000148ffff88801d R09: 000000000020000c
R10: ffffea0000774940 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801814fcb0 R14: 0000000000000000 R15: ffff88801dd25503
FS: 00007f4d6c8c4900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff101fffe2208 CR3: 000000000eef6000 CR4: 0000000000350ef0
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
getname_flags.part.0+0x50/0x4f0
getname+0x8e/0xd0
do_sys_openat2+0xf5/0x4c0
__x64_sys_openat+0x13f/0x1f0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f4d6d17ddf3
Code: 89 7c 24 18 44 89 54 24 0c e8 a9 5f f9 ff 44 8b 54 24 0c 8b 54 24 1c 41 89 c0 48 8b 74 24 10 8b 7c 24 18 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 d9 5f f9 ff 8b 44
RSP: 002b:00007fff5aa1e580 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4d6d17ddf3
RDX: 00000000002a0000 RSI: 000055fa3a2cbdc1 RDI: 0000000000000017
RBP: 00007fff5aa1e7b0 R08: 0000000000000000 R09: 00303a303a317465
R10: 0000000000000000 R11: 0000000000000293 R12: 000055fa3a2cbdc0
R13: 00007fff5aa1e840 R14: 0000000000000001 R15: 000055fa3a28e538
Modules linked in:
CR2: fffff101fffe2208
---[ 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 82 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 82 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:ffff88801814fc70 EFLAGS: 00010286
RAX: fffff101fffe2200 RBX: 000148ffff88801d RCX: 000000000020000c
RDX: 000149007f88801d RSI: ffffea0000774940 RDI: 0000000040000000
RBP: 0000000000000000 R08: 000148ffff88801d R09: 000000000020000c
R10: ffffea0000774940 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801814fcb0 R14: 0000000000000000 R15: ffff88801dd25503
FS: 00007f4d6c8c4900(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff101fffe2208 CR3: 000000000eef6000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
general protection fault, probably for non-canonical address 0x1c9b5b38cb9cd88: 0000 [#2] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 295 Comm: syz-executor.0 Tainted: G B D W 5.19.0-rc4-next-20220704 #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 82 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 82 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:ffff88800ec57df8 EFLAGS: 00010203
RAX: 01c9b5b38cb9cd80 RBX: 727275632e736469 RCX: 0000000000800066
RDX: 72727563ae736469 RSI: ffffea000074c8c0 RDI: 0000000040000000
RBP: 0000000000000000 R08: 727275632e736469 R09: 0000000000800066
R10: ffffea000074c8c0 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88800ec57e38 R14: 0000000000000000 R15: ffff88801d3230e1
FS: 0000555557028400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555557031c58 CR3: 000000001af0c000 CR4: 0000000000350ef0
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
getname_flags.part.0+0x50/0x4f0
__x64_sys_unlink+0xb1/0x110
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f81e7696457
Code: 73 01 c3 48 c7 c1 bc ff ff ff 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 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb2978b88 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f81e7696457
RDX: 00007ffcb2978bc0 RSI: 00007ffcb2978bc0 RDI: 00007ffcb2978c50
RBP: 00007ffcb2978c50 R08: 0000000000000001 R09: 00007ffcb2978a20
R10: 0000555557029c7b R11: 0000000000000206 R12: 00007f81e76f0105
R13: 00007ffcb2979d10 R14: 0000555557029c20 R15: 00007ffcb2979d50
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 82 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 82 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:ffff88801814fc70 EFLAGS: 00010286
RAX: fffff101fffe2200 RBX: 000148ffff88801d RCX: 000000000020000c
RDX: 000149007f88801d RSI: ffffea0000774940 RDI: 0000000040000000
RBP: 0000000000000000 R08: 000148ffff88801d R09: 000000000020000c
R10: ffffea0000774940 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801814fcb0 R14: 0000000000000000 R15: ffff88801dd25503
FS: 0000555557028400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555557031c58 CR3: 000000001af0c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15090 at mm/kasan/shadow.c:134 kasan_unpoison+0x42/0x50
Modules linked in:
CPU: 0 PID: 15090 Comm: syz-executor.7 Tainted: G B D W 5.19.0-rc4-next-20220704 #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:ffff88804731fae8 EFLAGS: 00010202
RAX: 0000000003113600 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000019c0 RDI: ffff888016d00671
RBP: ffff888008032500 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888016d00671
R13: 0000000000000cc0 R14: 00000000ffffffff R15: ffff88801ade6800
FS: 0000555555739400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff80239b718 CR3: 0000000044cdc000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
__kasan_slab_alloc+0x2c/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: 0033:0x7ff804e47f41
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:00007fff76dbbb68 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ff80239b700 RCX: 00007ff804e47f41
RDX: 00007ff80239b9d0 RSI: 00007ff80239b2f0 RDI: 00000000003d0f00
RBP: 00007fff76dbbda0 R08: 00007ff80239b700 R09: 00007ff80239b700
R10: 00007ff80239b9d0 R11: 0000000000000206 R12: 00007fff76dbbc1e
R13: 00007fff76dbbc1f R14: 00007ff80239b300 R15: 0000000000022000
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [] copy_process+0x1db6/0x6d60
softirqs last enabled at (0): [] copy_process+0x1dfa/0x6d60
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 0000000000000000 ]---
systemd[1]: Stopping Flush Journal to Persistent Storage...
kmemleak: Cannot insert 0xffff888016d00671 into the object search tree (overlaps existing)
CPU: 1 PID: 15090 Comm: syz-executor.7 Tainted: G B D W 5.19.0-rc4-next-20220704 #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
__create_object.isra.0.cold+0x44/0x6a
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: 0033:0x7ff804e47f41
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:00007fff76dbbb68 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ff80239b700 RCX: 00007ff804e47f41
RDX: 00007ff80239b9d0 RSI: 00007ff80239b2f0 RDI: 00000000003d0f00
RBP: 00007fff76dbbda0 R08: 00007ff80239b700 R09: 00007ff80239b700
R10: 00007ff80239b9d0 R11: 0000000000000206 R12: 00007fff76dbbc1e
R13: 00007fff76dbbc1f R14: 00007ff80239b300 R15: 0000000000022000
kmemleak: Kernel memory leak detector disabled
kmemleak: Object 0xffff888016d01ac0 (size 6592):
kmemleak: comm "syz-executor.0", pid 10187, jiffies 4294937708
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x1
kmemleak: checksum = 0
kmemleak: backtrace:
copy_process+0x4d2/0x6d60
kernel_clone+0xe7/0xa60
__do_sys_clone3+0x1cd/0x2d0
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
BUG: kernel NULL pointer dereference, address: 0000000000000000
------------[ cut here ]------------
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 43e57067 P4D 43e57067 PUD 450fd067 PMD 0
Oops: 0000 [#3] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 19 Comm: ksoftirqd/1 Tainted: G B D W 5.19.0-rc4-next-20220704 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:can_migrate_task.part.0+0x89/0x9f0
Code: 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 da 06 00 00 45 8b 66 14 be 08 00 00 00 4c 89 e0 48 c1 e8 06 48 8d 7c c5 00 e8 e7 fa 54 00 <4c> 0f a3 65 00 0f 82 f8 01 00 00 0f 1f 44 00 00 49 8d 46 40 48 89
RSP: 0018:ffff8880082b7af8 EFLAGS: 00010002
RAX: 0000000000000001 RBX: ffff88806ce37cc0 RCX: ffffffff8122a599
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff88801b00138f
R10: ffffed1003600271 R11: 0000000000000001 R12: 0000000000000001
R13: ffff88806ce387a8 R14: ffff8880082b7c70 R15: ffff888016d01ac0
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000044cdc000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
load_balance+0xa4c/0x2730
rebalance_domains+0x649/0xbe0
__do_softirq+0x1c8/0x8cc
run_ksoftirqd+0x2d/0x60
smpboot_thread_fn+0x66f/0xa00
kthread+0x2ed/0x3a0
ret_from_fork+0x22/0x30
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
general protection fault, probably for non-canonical address 0xff96ebe5ae7f92c8: 0000 [#4] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0xfcb77f2d73fc9640-0xfcb77f2d73fc9647]
RIP: 0010:qlist_free_all+0xaf/0x190
CPU: 0 PID: 0 Comm: syz-executor.0 Tainted: G B D W 5.19.0-rc4-next-20220704 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Code: 80 4c 01 c2 0f 82 f0 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 c3 82 7b 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 a1 82 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:ffff88801814fc70 EFLAGS: 00010286
RIP: 0010:acct_account_cputime+0x124/0x310
RAX: fffff101fffe2200 RBX: 000148ffff88801d RCX: 000000000020000c
Code: ab 88 11 00 00 be 08 00 00 00 4d 8d ae 20 04 00 00 4c 89 ef e8 4d 72 30 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 7f 01 00 00 4d 8b ae 20 04 00 00 41 bf 00 00 00
RDX: 000149007f88801d RSI: ffffea0000774940 RDI: 0000000040000000
RSP: 0018:ffff88806ce098a0 EFLAGS: 00010012
RAX: dffffc0000000000 RBX: ffff888016d01ac0 RCX: ffffffff81472e33
RBP: 0000000000000000 R08: 000148ffff88801d R09: 000000000020000c
RDX: 1f96efe5ae7f92c8 RSI: 0000000000000008 RDI: fcb77f2d73fc9640
RBP: 0000000000f3c553 R08: 0000000000000000 R09: 00000000000f423f
R10: ffffea0000774940 R11: 0000000000000000 R12: dffffc0000000000
R10: 0000000000f3c553 R11: 0000000000000001 R12: ffff888016d01f68
R13: fcb77f2d73fc9640 R14: fcb77f2d73fc9220 R15: 0000000000000001
R13: ffff88801814fcb0 R14: 0000000000000000 R15: ffff88801dd25503
FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f77ca2b0028 CR3: 000000004774e000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Call Trace:
CR2: 0000000000000000 CR3: 0000000044cdc000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 83 e2 07 and $0x7,%edx
3: 38 d0 cmp %dl,%al
5: 7f 08 jg 0xf
7: 84 c0 test %al,%al
9: 0f 85 d5 02 00 00 jne 0x2e4
f: 88 5d 00 mov %bl,0x0(%rbp)
12: e8 db 3e 00 00 callq 0x3ef2
17: 31 ff xor %edi,%edi
19: 4c 89 f6 mov %r14,%rsi
1c: e8 01 5e 19 00 callq 0x195e22
21: 4d 85 f6 test %r14,%r14
24: 0f 85 76 01 00 00 jne 0x1a0
* 2a: e8 03 61 19 00 callq 0x196132 <-- trapping instruction
2f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
36: fc ff df
39: 48 03 04 24 add (%rsp),%rax
3d: 48 rex.W
3e: c7 .byte 0xc7