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: 0 UID: 0 PID: 5696 Comm: syz.1.86 Not tainted 6.11.0-rc4-next-20240822-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:191 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:rb_erase+0x530/0xe70 lib/rbtree.c:445
Code: 00 00 74 08 4c 89 ef e8 0e ca 44 f6 4d 89 7d 00 49 8d 6f 01 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 e1 c9 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc90000007620 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f860 RDI: ffff888021ca3ec8
RBP: ffff8880183c5cc1 R08: ffff888021ca4037 R09: 1ffff11004394806
R10: dffffc0000000000 R11: ffffed1004394807 R12: ffff8880183c5cc0
R13: dffffc0000000000 R14: 1ffff11003078b98 R15: ffff8880183c5cc0
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32804ff8 CR3: 0000000079d4a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sched_core_dequeue kernel/sched/core.c:283 [inline]
dequeue_task+0x34d/0x550 kernel/sched/core.c:2031
detach_task kernel/sched/fair.c:9368 [inline]
detach_tasks kernel/sched/fair.c:9504 [inline]
sched_balance_rq+0x5d5b/0x8590 kernel/sched/fair.c:11648
sched_balance_domains+0x565/0xa90 kernel/sched/fair.c:12069
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lru_add_drain_cpu+0x1c0/0x890
Code: bb 00 02 00 00 be 00 02 00 00 4c 21 f6 31 ff e8 56 a2 c3 ff 4c 21 f3 48 89 5c 24 18 75 16 e8 67 9d c3 ff eb 19 e8 60 9d c3 ff <4c> 8b 64 24 10 e9 8d 02 00 00 e8 51 9d c3 ff e8 1c 53 cb ff e8 67
RSP: 0018:ffffc9000a1eeea0 EFLAGS: 00000293
RAX: ffffffff81d06300 RBX: 0000000000000000 RCX: ffff88802a16da00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000a1eef98 R08: ffffffff81d06288 R09: 1ffffffff26f630b
R10: dffffc0000000000 R11: fffffbfff26f630c R12: ffff8880b90381f8
R13: ffff8880b9037c98 R14: ffff8880b9037cc8 R15: dffffc0000000000
lru_add_drain+0x123/0x3e0 mm/swap.c:743
free_pages_and_swap_cache+0xc4/0x690 mm/swap_state.c:321
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:366 [inline]
tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:373
zap_pte_range mm/memory.c:1697 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0x376e/0x40e0 mm/memory.c:1807
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
exit_mmap+0x275/0xc40 mm/mmap.c:1912
__mmput+0x115/0x390 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa2c1579e79
Code: Unable to access opcode bytes at 0x7fa2c1579e4f.
RSP: 002b:00007fa2c22d40e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa2c1716138 RCX: 00007fa2c1579e79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa2c1716138
RBP: 00007fa2c1716130 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa2c171613c
R13: 0000000000000000 R14: 00007ffc4f920ae0 R15: 00007ffc4f920bc8
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:rb_set_parent_color include/linux/rbtree_augmented.h:191 [inline]
RIP: 0010:____rb_erase_color lib/rbtree.c:255 [inline]
RIP: 0010:rb_erase+0x530/0xe70 lib/rbtree.c:445
Code: 00 00 74 08 4c 89 ef e8 0e ca 44 f6 4d 89 7d 00 49 8d 6f 01 48 8b 5c 24 08 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df <42> 80 3c 28 00 74 08 48 89 df e8 e1 c9 44 f6 48 89 2b 4c 89 fd 48
RSP: 0018:ffffc90000007620 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: dffffc0000000000 RSI: ffff8880b913f860 RDI: ffff888021ca3ec8
RBP: ffff8880183c5cc1 R08: ffff888021ca4037 R09: 1ffff11004394806
R10: dffffc0000000000 R11: ffffed1004394807 R12: ffff8880183c5cc0
R13: dffffc0000000000 R14: 1ffff11003078b98 R15: ffff8880183c5cc0
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32804ff8 CR3: 0000000079d4a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 74 08 je 0xc
4: 4c 89 ef mov %r13,%rdi
7: e8 0e ca 44 f6 call 0xf644ca1a
c: 4d 89 7d 00 mov %r15,0x0(%r13)
10: 49 8d 6f 01 lea 0x1(%r15),%rbp
14: 48 8b 5c 24 08 mov 0x8(%rsp),%rbx
19: 48 89 d8 mov %rbx,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13
27: fc ff df
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 e1 c9 44 f6 call 0xf644ca1a
39: 48 89 2b mov %rbp,(%rbx)
3c: 4c 89 fd mov %r15,%rbp
3f: 48 rex.W