Oops: general protection fault, probably for non-canonical address 0xe7ffed1c349f36f7: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0x3fff88e1a4f9b7b8-0x3fff88e1a4f9b7bf]
CPU: 0 UID: 0 PID: 52 Comm: kworker/u8:3 Not tainted 6.15.0-rc5-syzkaller-00136-g9c69f8884904 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025
Workqueue: events_unbound flush_memcg_stats_dwork
RIP: 0010:cgroup_rstat_push_children kernel/cgroup/rstat.c:165 [inline]
RIP: 0010:cgroup_rstat_updated_list kernel/cgroup/rstat.c:245 [inline]
RIP: 0010:cgroup_rstat_flush+0x840/0x1e70 kernel/cgroup/rstat.c:325
Code: 70 74 08 48 89 df e8 ef e6 66 00 4c 8b 23 4b 8d 1c 3c 48 81 c3 a0 00 00 00 49 89 dd 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 48 89 df e8 c0 e6 66 00 48 8b 03 48 3b 44
RSP: 0018:ffffc90000bd7920 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: 3fff88e1a4f9b7bd RCX: 1ffffffff1b2b383
RDX: 0000000000000000 RSI: ffffffff8bc0fec0 RDI: ffff88806481c5c1
RBP: ffffc90000bd7b08 R08: ffffffff8f7da777 R09: 1ffffffff1efb4ee
R10: dffffc0000000000 R11: fffffbfff1efb4ef R12: ffff888126200000
R13: 07fff11c349f36f7 R14: 0000000000000000 R15: 400000607ed9b71d
FS: 0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005598d2923440 CR3: 000000005d74e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
flush_memcg_stats_dwork+0x15/0x60 mm/memcontrol.c:653
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
kthread+0x70e/0x8a0 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:cgroup_rstat_push_children kernel/cgroup/rstat.c:165 [inline]
RIP: 0010:cgroup_rstat_updated_list kernel/cgroup/rstat.c:245 [inline]
RIP: 0010:cgroup_rstat_flush+0x840/0x1e70 kernel/cgroup/rstat.c:325
Code: 70 74 08 48 89 df e8 ef e6 66 00 4c 8b 23 4b 8d 1c 3c 48 81 c3 a0 00 00 00 49 89 dd 49 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <41> 80 7c 05 00 00 74 08 48 89 df e8 c0 e6 66 00 48 8b 03 48 3b 44
RSP: 0018:ffffc90000bd7920 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: 3fff88e1a4f9b7bd RCX: 1ffffffff1b2b383
RDX: 0000000000000000 RSI: ffffffff8bc0fec0 RDI: ffff88806481c5c1
RBP: ffffc90000bd7b08 R08: ffffffff8f7da777 R09: 1ffffffff1efb4ee
R10: dffffc0000000000 R11: fffffbfff1efb4ef R12: ffff888126200000
R13: 07fff11c349f36f7 R14: 0000000000000000 R15: 400000607ed9b71d
FS: 0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005598d2923440 CR3: 000000005d74e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 70 74 jo 0x76
2: 08 48 89 or %cl,-0x77(%rax)
5: df e8 fucomip %st(0),%st
7: ef out %eax,(%dx)
8: e6 66 out %al,$0x66
a: 00 4c 8b 23 add %cl,0x23(%rbx,%rcx,4)
e: 4b 8d 1c 3c lea (%r12,%r15,1),%rbx
12: 48 81 c3 a0 00 00 00 add $0xa0,%rbx
19: 49 89 dd mov %rbx,%r13
1c: 49 c1 ed 03 shr $0x3,%r13
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 41 80 7c 05 00 00 cmpb $0x0,0x0(%r13,%rax,1) <-- trapping instruction
30: 74 08 je 0x3a
32: 48 89 df mov %rbx,%rdi
35: e8 c0 e6 66 00 call 0x66e6fa
3a: 48 8b 03 mov (%rbx),%rax
3d: 48 rex.W
3e: 3b .byte 0x3b
3f: 44 rex.R