==================================================================
kasan: CONFIG_KASAN_INLINE enabled
BUG: KASAN: stack-out-of-bounds in remove_vma+0x18e/0x1b0 mm/mmap.c:184
kasan: GPF could be caused by NULL-ptr deref or user memory access
Read of size 8 at addr ffff8801b39023d0 by task udevd/7174
general protection fault: 0000 [#1] SMP KASAN
CPU: 1 PID: 912813368 Comm: syz-exec Not tainted 4.18.0-rc3+ #49
CPU: 0 PID: 7174 Comm: udevd Not tainted 4.18.0-rc3+ #49
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:task_css include/linux/cgroup.h:477 [inline]
RIP: 0010:task_ca kernel/sched/cpuacct.c:43 [inline]
RIP: 0010:cpuacct_account_field+0x13c/0x3b0 kernel/sched/cpuacct.c:365
Call Trace:
Code: da 45 08
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
00 85
c0 74
0d 80
3d f1
print_address_description+0x6c/0x20b mm/kasan/report.c:256
1e
3c 08
kasan_report_error mm/kasan/report.c:354 [inline]
kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
00 0f
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
84
remove_vma+0x18e/0x1b0 mm/mmap.c:184
79
exit_mmap+0x365/0x5b0 mm/mmap.c:3116
01
00
__mmput kernel/fork.c:970 [inline]
mmput+0x265/0x620 kernel/fork.c:991
00
48
b8
00
00
00 00
exec_mmap fs/exec.c:1044 [inline]
flush_old_exec+0xbaf/0x2100 fs/exec.c:1276
00
fc
ff
df
49
8d
7d
10
48
89
fa 48
c1
ea
load_elf_binary+0xa33/0x5610 fs/binfmt_elf.c:869
03
<80>
3c 02
00
search_binary_handler+0x17d/0x570 fs/exec.c:1653
0f
exec_binprm fs/exec.c:1695 [inline]
__do_execve_file.isra.36+0x171d/0x2730 fs/exec.c:1819
85
49 02
00
00
4d
8b 65
10 49
81 fc
80 a4
f7 88
0f
RSP: 0018:ffff8801daf078e8 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff815d8e26
RDX: 0000000000000052 RSI: 0000000000000008 RDI: 0000000000000292
RBP: ffff8801daf07978 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8801daf07950 R11: ffffffff8190dcdf R12: ffff8801b3436500
do_execveat_common fs/exec.c:1866 [inline]
do_execve fs/exec.c:1883 [inline]
__do_sys_execve fs/exec.c:1964 [inline]
__se_sys_execve fs/exec.c:1959 [inline]
__x64_sys_execve+0x8f/0xc0 fs/exec.c:1959
R13: 0000000000000282 R14: 1ffff1003b5e0f1e R15: 00000000000f4240
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
FS: 0000000000ec9940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001111fd0 CR3: 00000001d4b58000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fec39890207
Code:
Bad RIP value.
cgroup_account_cputime_field include/linux/cgroup.h:739 [inline]
task_group_account_field kernel/sched/cputime.c:108 [inline]
account_system_index_time+0x1dc/0x5c0 kernel/sched/cputime.c:171
RSP: 002b:00007ffc88c26aa8 EFLAGS: 00000202
ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007fec39890207
RDX: 0000000001103ab0 RSI: 00007ffc88c26ba0 RDI: 00007ffc88c27bb0
RBP: 0000000000625500 R08: 0000000000000aba R09: 0000000000000aba
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000001103ab0
account_system_time+0x7f/0xb0 kernel/sched/cputime.c:199
R13: 0000000000000007 R14: 0000000001102250 R15: 0000000000000005
account_process_tick+0x76/0x240 kernel/sched/cputime.c:498
update_process_times+0x21/0x70 kernel/time/timer.c:1634
Allocated by task 2746:
tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164
save_stack+0x43/0xd0 mm/kasan/kasan.c:448
tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274
set_track mm/kasan/kasan.c:460 [inline]
kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
__run_hrtimer kernel/time/hrtimer.c:1398 [inline]
__hrtimer_run_queues+0x3eb/0x10c0 kernel/time/hrtimer.c:1460
kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
kmem_cache_alloc+0x12e/0x760 mm/slab.c:3554
dup_mmap kernel/fork.c:458 [inline]
dup_mm kernel/fork.c:1243 [inline]
copy_mm kernel/fork.c:1297 [inline]
copy_process.part.40+0x4581/0x7220 kernel/fork.c:1803
copy_process kernel/fork.c:1616 [inline]
_do_fork+0x291/0x12a0 kernel/fork.c:2099
__do_sys_clone kernel/fork.c:2206 [inline]
__se_sys_clone kernel/fork.c:2200 [inline]
__x64_sys_clone+0xbf/0x150 kernel/fork.c:2200
do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Freed by task 3493993472:
hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
smp_apic_timer_interrupt+0x165/0x730 arch/x86/kernel/apic/apic.c:1050
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863
</IRQ>
Modules linked in:
Dumping ftrace buffer:
(ftrace buffer empty)
---[ end trace d5a5181812fb1052 ]---
BUG: unable to handle kernel paging request at ffffffff8baa60f0
PGD 8e6d067
RIP: 0010:task_css include/linux/cgroup.h:477 [inline]
RIP: 0010:task_ca kernel/sched/cpuacct.c:43 [inline]
RIP: 0010:cpuacct_account_field+0x13c/0x3b0 kernel/sched/cpuacct.c:365
P4D 8e6d067
Code: da
PUD 8e6e063
45
PMD 0
08
Oops: 0000 [#2] SMP KASAN
00
CPU: 0 PID: 7174 Comm: udevd Tainted: G D 4.18.0-rc3+ #49
85 c0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
74
RIP: 0010:depot_fetch_stack+0x10/0x30 lib/stackdepot.c:201
0d
Code:
80 3d
e8
f1
c5
1e 3c
2e
08 00
47
0f
fe
84 79
e9
01 00
b3
00
fd
48
ff
b8 00
ff
00
e8
00
bb
00 00
2e
fc
47
ff df
fe
49 8d
e9
7d 10
55
48 89
fd
fa 48
ff
c1
ff
ea 03
90
<80> 3c
90
02
90
00
90
0f 85
90
49
90
02 00
89
00 4d
f8
8b 65
c1
10
ef
49
11
81
25
fc 80
ff
a4 f7
ff
88 0f
1f
00
RSP: 0018:ffff8801daf078e8 EFLAGS: 00010002
81
e7
RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff815d8e26
f0
RDX: 0000000000000052 RSI: 0000000000000008 RDI: 0000000000000292
3f
RBP: ffff8801daf07978 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8801daf07950 R11: ffffffff8190dcdf R12: ffff8801b3436500
00
R13: 0000000000000282 R14: 1ffff1003b5e0f1e R15: 00000000000f4240
00
FS: 0000000000ec9940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
<48>
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001111fd0 CR3: 00000001d4b58000 CR4: 00000000001406e0
03
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
3c
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
c5