general protection fault, probably for non-canonical address 0xdffffc0000000012: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097] CPU: 0 PID: 5376 Comm: syz-executor.0 Not tainted 6.5.0-rc5-syzkaller-g52a93d39b17d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:kernfs_ino include/linux/kernfs.h:360 [inline] RIP: 0010:cgroup_ino include/linux/cgroup.h:567 [inline] RIP: 0010:cgroup_psi include/linux/psi.h:37 [inline] RIP: 0010:task_psi_group kernel/sched/psi.c:888 [inline] RIP: 0010:psi_task_change+0x142/0x2e0 kernel/sched/psi.c:921 Code: 03 80 3c 02 00 0f 85 87 01 00 00 4c 8b bb 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bf 90 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 68 01 00 00 49 83 bf 90 00 00 00 01 74 72 48 8d RSP: 0018:ffffc900058dfa98 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: ffff888070646000 RCX: 0000000000000001 RDX: 0000000000000012 RSI: ffffffff8a6c7780 RDI: 0000000000000090 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004 R13: 0000000000000000 R14: 0000001085c35981 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055559eaa7a70 CR3: 000000000c776000 CR4: 0000000000350ef0 Call Trace: psi_enqueue kernel/sched/stats.h:139 [inline] enqueue_task kernel/sched/core.c:2078 [inline] activate_task kernel/sched/core.c:2112 [inline] ttwu_do_activate+0xa6f/0xd90 kernel/sched/core.c:3776 ttwu_queue kernel/sched/core.c:4026 [inline] try_to_wake_up+0x779/0x15a0 kernel/sched/core.c:4345 signal_wake_up_state+0x79/0x120 kernel/signal.c:781 signal_wake_up include/linux/sched/signal.h:457 [inline] complete_signal+0x86c/0xb70 kernel/signal.c:1064 __send_signal_locked+0x509/0x11d0 kernel/signal.c:1194 do_send_sig_info kernel/signal.c:1300 [inline] group_send_sig_info+0x2ad/0x310 kernel/signal.c:1450 zap_pid_ns_processes+0x23c/0x6a0 kernel/pid_namespace.c:208 find_child_reaper kernel/exit.c:608 [inline] forget_original_parent kernel/exit.c:697 [inline] exit_notify kernel/exit.c:734 [inline] do_exit+0x2314/0x2a20 kernel/exit.c:894 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3c4887c959 Code: Unable to access opcode bytes at 0x7f3c4887c92f. RSP: 002b:00007ffd13dacc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f3c4887c959 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000b RBP: 00007ffd13dad2dc R08: 0000000000000001 R09: 000000000000000b R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000113ce R14: 00000000000113ce R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kernfs_ino include/linux/kernfs.h:360 [inline] RIP: 0010:cgroup_ino include/linux/cgroup.h:567 [inline] RIP: 0010:cgroup_psi include/linux/psi.h:37 [inline] RIP: 0010:task_psi_group kernel/sched/psi.c:888 [inline] RIP: 0010:psi_task_change+0x142/0x2e0 kernel/sched/psi.c:921 Code: 03 80 3c 02 00 0f 85 87 01 00 00 4c 8b bb 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bf 90 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 68 01 00 00 49 83 bf 90 00 00 00 01 74 72 48 8d RSP: 0018:ffffc900058dfa98 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: ffff888070646000 RCX: 0000000000000001 RDX: 0000000000000012 RSI: ffffffff8a6c7780 RDI: 0000000000000090 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000004 R13: 0000000000000000 R14: 0000001085c35981 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055559eaa7a70 CR3: 000000000c776000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax 6: 85 87 01 00 00 4c test %eax,0x4c000001(%rdi) c: 8b bb 48 01 00 00 mov 0x148(%rbx),%edi 12: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 19: fc ff df 1c: 49 8d bf 90 00 00 00 lea 0x90(%r15),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 68 01 00 00 jne 0x19c 34: 49 83 bf 90 00 00 00 cmpq $0x1,0x90(%r15) 3b: 01 3c: 74 72 je 0xb0 3e: 48 rex.W 3f: 8d .byte 0x8d