general protection fault, probably for non-canonical address 0xdffffc000000006f: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000378-0x000000000000037f] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: cgroup_destroy css_release_work_fn RIP: 0010:cgroup_rstat_cpu kernel/cgroup/rstat.c:13 [inline] RIP: 0010:cgroup_rstat_cpu_pop_updated kernel/cgroup/rstat.c:106 [inline] RIP: 0010:cgroup_rstat_flush_locked+0x182/0xcc0 kernel/cgroup/rstat.c:161 Code: 85 f6 49 89 f4 48 89 44 24 10 75 0a e9 94 06 00 00 4c 8b 64 24 08 e8 cd f5 05 00 4d 8d bc 24 78 03 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 6b 08 00 00 49 8b 9c 24 78 03 00 00 48 83 3c RSP: 0018:ffffc90000cc7c20 EFLAGS: 00010006 RAX: 000000000000006f RBX: ffffe8ffffc49380 RCX: 0000000000000000 RDX: ffff888012353880 RSI: ffffffff816ecce3 RDI: ffffe8ffffc493b0 RBP: ffff888068144000 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000198f76 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880b9c00000 R15: 0000000000000378 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 0000000018800000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: cgroup_rstat_flush+0x3a/0x50 kernel/cgroup/rstat.c:203 css_release_work_fn+0x440/0x920 kernel/cgroup/cgroup.c:4991 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Modules linked in: ---[ end trace 2427c3246fe2b45f ]--- RIP: 0010:cgroup_rstat_cpu kernel/cgroup/rstat.c:13 [inline] RIP: 0010:cgroup_rstat_cpu_pop_updated kernel/cgroup/rstat.c:106 [inline] RIP: 0010:cgroup_rstat_flush_locked+0x182/0xcc0 kernel/cgroup/rstat.c:161 Code: 85 f6 49 89 f4 48 89 44 24 10 75 0a e9 94 06 00 00 4c 8b 64 24 08 e8 cd f5 05 00 4d 8d bc 24 78 03 00 00 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 6b 08 00 00 49 8b 9c 24 78 03 00 00 48 83 3c RSP: 0018:ffffc90000cc7c20 EFLAGS: 00010006 RAX: 000000000000006f RBX: ffffe8ffffc49380 RCX: 0000000000000000 RDX: ffff888012353880 RSI: ffffffff816ecce3 RDI: ffffe8ffffc493b0 RBP: ffff888068144000 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000198f76 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff8880b9c00000 R15: 0000000000000378 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 0000000018800000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600