Oops: general protection fault, probably for non-canonical address 0xe7ffed1c347cf773: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0x3fff88e1a3e7bb98-0x3fff88e1a3e7bb9f]
CPU: 0 UID: 0 PID: 999 Comm: kworker/u8:5 Not tainted 6.15.0-rc2-syzkaller-00488-g6fea5fabd332 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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+0x871/0x1fa0 kernel/cgroup/rstat.c:325
Code: 00 74 08 48 89 df e8 ee 0d 6f 00 4c 8b 3b 4f 8d 24 2f 49 81 c4 a0 00 00 00 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 e7 e8 c0 0d 6f 00 4d 01 ef 4d 8b 2c 24
RSP: 0000:ffffc90003907900 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: ffffffff8e786c18 RCX: ffff8880267ada00
RDX: 0000000000000000 RSI: ffffffff8ca0e260 RDI: ffff888058dea5c1
RBP: ffffc90003907b08 R08: ffffffff81bb538b R09: 1ffffffff20bd76e
R10: dffffc0000000000 R11: fffffbfff20bd76f R12: 3fff88e1a3e7bb9c
R13: 400000607edacafc R14: 07fff11c347cf773 R15: ffff8881250cf000
FS: 0000000000000000(0000) GS:ffff888124fcf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f068e730321 CR3: 00000000587c2000 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+0xac3/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd50 kernel/workqueue.c:3400
kthread+0x7b7/0x940 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+0x871/0x1fa0 kernel/cgroup/rstat.c:325
Code: 00 74 08 48 89 df e8 ee 0d 6f 00 4c 8b 3b 4f 8d 24 2f 49 81 c4 a0 00 00 00 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 e7 e8 c0 0d 6f 00 4d 01 ef 4d 8b 2c 24
RSP: 0000:ffffc90003907900 EFLAGS: 00010003
RAX: dffffc0000000000 RBX: ffffffff8e786c18 RCX: ffff8880267ada00
RDX: 0000000000000000 RSI: ffffffff8ca0e260 RDI: ffff888058dea5c1
RBP: ffffc90003907b08 R08: ffffffff81bb538b R09: 1ffffffff20bd76e
R10: dffffc0000000000 R11: fffffbfff20bd76f R12: 3fff88e1a3e7bb9c
R13: 400000607edacafc R14: 07fff11c347cf773 R15: ffff8881250cf000
FS: 0000000000000000(0000) GS:ffff888124fcf000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f068e730321 CR3: 00000000587c2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 74 08 48 add %dh,0x48(%rax,%rcx,1)
4: 89 df mov %ebx,%edi
6: e8 ee 0d 6f 00 call 0x6f0df9
b: 4c 8b 3b mov (%rbx),%r15
e: 4f 8d 24 2f lea (%r15,%r13,1),%r12
12: 49 81 c4 a0 00 00 00 add $0xa0,%r12
19: 4d 89 e6 mov %r12,%r14
1c: 49 c1 ee 03 shr $0x3,%r14
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 41 80 3c 06 00 cmpb $0x0,(%r14,%rax,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 e7 mov %r12,%rdi
34: e8 c0 0d 6f 00 call 0x6f0df9
39: 4d 01 ef add %r13,%r15
3c: 4d 8b 2c 24 mov (%r12),%r13