Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 5610 Comm: syz.4.48 Not tainted 6.11.0-rc4-next-20240823-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline] RIP: 0010:__rb_erase_color+0x2d7/0xa30 lib/rbtree.c:413 Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 13 d8 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 fa d7 44 f6 41 f6 45 00 01 48 89 RSP: 0000:ffffc900090a7220 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff88802298daa0 RCX: dffffc0000000000 RDX: ffffffff81680dc0 RSI: ffff8880b903eb48 RDI: ffff88802298da90 RBP: 1ffff11004531b54 R08: 00000000000001e2 R09: 0000000000000000 R10: ffff88801dbf6410 R11: ffffffff81671a40 R12: ffff88802298da90 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f58393646c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e74aa6d000 CR3: 000000002438a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rb_erase_augmented include/linux/rbtree_augmented.h:331 [inline] rb_erase_augmented_cached include/linux/rbtree_augmented.h:340 [inline] __dequeue_entity+0x953/0xd30 kernel/sched/fair.c:863 set_next_entity+0xfe/0x4c0 kernel/sched/fair.c:5559 set_next_task_fair+0x1dd/0x540 kernel/sched/fair.c:13151 set_next_task kernel/sched/sched.h:2434 [inline] pick_next_task kernel/sched/core.c:6085 [inline] __schedule+0x250c/0x4b30 kernel/sched/core.c:6632 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6999 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:try_charge_memcg+0x4de/0x1010 mm/memcontrol.c:2182 Code: 44 24 30 00 02 00 00 75 1b 80 7c 24 28 00 75 20 e9 74 08 00 00 e8 62 9f ba 09 f7 44 24 30 00 02 00 00 74 e5 fb 80 7c 24 28 00 <0f> 84 59 08 00 00 e9 06 02 00 00 44 89 fb 48 8b bc 24 80 00 00 00 RSP: 0000:ffffc900090a7760 EFLAGS: 00000246 RAX: df8b415dc26d3300 RBX: 1ffff92001214f04 RCX: ffffffff8170808a RDX: dffffc0000000000 RSI: ffffffff8c0aca40 RDI: ffffc900090a7820 RBP: ffffc900090a78f8 R08: ffffffff937b389f R09: 1ffffffff26f6713 R10: dffffc0000000000 R11: fffffbfff26f6714 R12: ffff8880790a8000 R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000040 try_charge mm/memcontrol-v1.h:19 [inline] charge_memcg+0xa6/0x1e0 mm/memcontrol.c:4483 __mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4498 mem_cgroup_charge include/linux/memcontrol.h:694 [inline] folio_prealloc+0x52/0x170 mm/memory.c:1068 alloc_anon_folio mm/memory.c:4496 [inline] do_anonymous_page mm/memory.c:4553 [inline] do_pte_missing mm/memory.c:3945 [inline] handle_pte_fault+0x258a/0x67b0 mm/memory.c:5522 __handle_mm_fault mm/memory.c:5665 [inline] handle_mm_fault+0x1029/0x1980 mm/memory.c:5833 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f583843dca0 Code: 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 47 0f b6 0c 08 45 84 c9 74 08 <45> 88 0c 00 49 8b 47 10 48 83 c0 01 49 89 47 10 83 e9 01 73 d3 41 RSP: 002b:00007f58393634a0 EFLAGS: 00010282 RAX: 0000000000133000 RBX: 00007f5839363540 RCX: 0000000000000016 RDX: 00000000000000ff RSI: 0000000000000200 RDI: 00007f58393635e0 RBP: 00000000000000e8 R08: 00007f582dc00000 R09: 00000000000000fe R10: 0000000020012cc2 R11: 0000000000009604 R12: 0000000000000181 R13: 00007f58385fb880 R14: 0000000000000011 R15: 00007f58393635e0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:____rb_erase_color lib/rbtree.c:354 [inline] RIP: 0010:__rb_erase_color+0x2d7/0xa30 lib/rbtree.c:413 Code: 73 02 00 00 49 8d 5c 24 10 48 89 dd 48 c1 ed 03 42 80 7c 35 00 00 74 08 48 89 df e8 13 d8 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 fa d7 44 f6 41 f6 45 00 01 48 89 RSP: 0000:ffffc900090a7220 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff88802298daa0 RCX: dffffc0000000000 RDX: ffffffff81680dc0 RSI: ffff8880b903eb48 RDI: ffff88802298da90 RBP: 1ffff11004531b54 R08: 00000000000001e2 R09: 0000000000000000 R10: ffff88801dbf6410 R11: ffffffff81671a40 R12: ffff88802298da90 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 00007f58393646c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e74aa6d000 CR3: 000000002438a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 73 02 jae 0x4 2: 00 00 add %al,(%rax) 4: 49 8d 5c 24 10 lea 0x10(%r12),%rbx 9: 48 89 dd mov %rbx,%rbp c: 48 c1 ed 03 shr $0x3,%rbp 10: 42 80 7c 35 00 00 cmpb $0x0,0x0(%rbp,%r14,1) 16: 74 08 je 0x20 18: 48 89 df mov %rbx,%rdi 1b: e8 13 d8 44 f6 call 0xf644d833 20: 4c 8b 2b mov (%rbx),%r13 23: 4d 89 ef mov %r13,%r15 26: 49 c1 ef 03 shr $0x3,%r15 * 2a: 43 80 3c 37 00 cmpb $0x0,(%r15,%r14,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ef mov %r13,%rdi 34: e8 fa d7 44 f6 call 0xf644d833 39: 41 f6 45 00 01 testb $0x1,0x0(%r13) 3e: 48 rex.W 3f: 89 .byte 0x89