general protection fault, probably for non-canonical address 0xdffffc001ffff122: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x00000000ffff8910-0x00000000ffff8917] CPU: 1 PID: 6385 Comm: syz-executor.1 Not tainted 6.6.0-rc1-syzkaller-00014-ga747acc0b752 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 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_switch+0x48a/0x900 kernel/sched/psi.c:941 Code: 03 80 3c 02 00 0f 85 71 04 00 00 4d 8b bd 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 52 04 00 00 49 83 bf 90 00 00 00 01 0f 84 61 01 RSP: 0018:ffffc9000353f528 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 000000001ffff122 RSI: 0000000000000000 RDI: 00000000ffff8910 RBP: ffff88807ec21dc0 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000400 R12: 0000000000000000 R13: ffff888076b00000 R14: 0000000000000002 R15: 00000000ffff8880 FS: 00007fcfc5f546c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94b399d988 CR3: 000000002184c000 CR4: 0000000000350ee0 Call Trace: psi_sched_switch kernel/sched/stats.h:185 [inline] __schedule+0x2336/0x59f0 kernel/sched/core.c:6690 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7007 irqentry_exit+0x35/0x80 kernel/entry/common.c:432 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:memmove+0x50/0x1b0 arch/x86/lib/memmove_64.S:71 Code: 0f 1f 44 00 00 48 81 fa a8 02 00 00 72 05 40 38 fe 74 47 48 83 ea 20 48 83 ea 20 4c 8b 1e 4c 8b 56 08 4c 8b 4e 10 4c 8b 46 18 <48> 8d 76 20 4c 89 1f 4c 89 57 08 4c 89 4f 10 4c 89 47 18 48 8d 7f RSP: 0018:ffffc9000353f800 EFLAGS: 00000286 RAX: ffff888073776078 RBX: ffff888073776002 RCX: 0000000000000000 RDX: fffffffffca0c2e8 RSI: ffff888076d69ce4 RDI: ffff888076d69cd8 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88807377607c R13: ffff888061406000 R14: dffffc0000000000 R15: dffffc0000000000 ext4_ext_rm_leaf fs/ext4/extents.c:2736 [inline] ext4_ext_remove_space+0x1dd1/0x4390 fs/ext4/extents.c:2958 ext4_punch_hole+0xe10/0x1040 fs/ext4/inode.c:4011 ext4_fallocate+0xe21/0x3c30 fs/ext4/extents.c:4706 vfs_fallocate+0x46c/0xe80 fs/open.c:324 ioctl_preallocate+0x1a4/0x220 fs/ioctl.c:291 file_ioctl fs/ioctl.c:334 [inline] do_vfs_ioctl+0x158c/0x1920 fs/ioctl.c:850 __do_sys_ioctl fs/ioctl.c:869 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x112/0x210 fs/ioctl.c:857 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: 0033:0x7fcfc527cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fcfc5f540c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcfc539c120 RCX: 00007fcfc527cae9 RDX: 0000000020000080 RSI: 000000004030582b RDI: 0000000000000004 RBP: 00007fcfc52c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fcfc539c120 R15: 00007fffa7c8c668 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_switch+0x48a/0x900 kernel/sched/psi.c:941 Code: 03 80 3c 02 00 0f 85 71 04 00 00 4d 8b bd 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 52 04 00 00 49 83 bf 90 00 00 00 01 0f 84 61 01 RSP: 0018:ffffc9000353f528 EFLAGS: 00010016 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 000000001ffff122 RSI: 0000000000000000 RDI: 00000000ffff8910 RBP: ffff88807ec21dc0 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000400 R12: 0000000000000000 R13: ffff888076b00000 R14: 0000000000000002 R15: 00000000ffff8880 FS: 00007fcfc5f546c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f94b399d988 CR3: 000000002184c000 CR4: 0000000000350ee0 ---------------- Code disassembly (best guess): 0: 03 80 3c 02 00 0f add 0xf00023c(%rax),%eax 6: 85 71 04 test %esi,0x4(%rcx) 9: 00 00 add %al,(%rax) b: 4d 8b bd 48 01 00 00 mov 0x148(%r13),%r15 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 52 04 00 00 jne 0x486 34: 49 83 bf 90 00 00 00 cmpq $0x1,0x90(%r15) 3b: 01 3c: 0f .byte 0xf 3d: 84 61 01 test %ah,0x1(%rcx)