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: 5402 Comm: modprobe 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_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 43 dc 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 2a dc 44 f6 41 f6 45 00 01 48 89 RSP: 0018:ffffc900044a7040 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff88807b16a820 RCX: dffffc0000000000 RDX: ffffffff81681190 RSI: ffff8880b903eb48 RDI: ffff88807b16a810 RBP: 1ffff1100f62d504 R08: ffffffff901c12ef R09: 1ffffffff203825d R10: dffffc0000000000 R11: ffffffff81671e10 R12: ffff88807b16a810 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce6d55fc8 CR3: 000000001769e000 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:__kasan_check_write+0x6/0x20 mm/kasan/shadow.c:37 Code: e9 6f e6 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 89 f6 <48> 8b 0c 24 ba 01 00 00 00 e9 3c e6 ff ff 66 2e 0f 1f 84 00 00 00 RSP: 0018:ffffc900044a7578 EFLAGS: 00000246 RAX: 1ffff92000894ec4 RBX: ffff88801db26880 RCX: ffff888029fa3c00 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88801db27084 RBP: 1ffff92000894eca R08: ffffffff81e73665 R09: 1ffff11003b64e10 R10: dffffc0000000000 R11: ffffed1003b64e11 R12: dffffc0000000000 R13: 0000000000000000 R14: ffffc900044a7620 R15: ffffc900044a7650 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline] dec_tlb_flush_pending include/linux/mm_inline.h:485 [inline] tlb_finish_mmu+0x172/0x200 mm/mmu_gather.c:470 unmap_region+0x2df/0x350 mm/vma.c:174 do_vmi_align_munmap+0x1268/0x1900 mm/vma.c:817 do_vmi_munmap+0x24e/0x2d0 mm/vma.c:883 mmap_region+0x6b6/0x20a0 mm/mmap.c:1392 do_mmap+0x8f9/0x1010 mm/mmap.c:495 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588 ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:541 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f446d4bab74 Code: 63 08 44 89 e8 5b 41 5c 41 5d c3 41 89 ca 41 f7 c1 ff 0f 00 00 74 0c c7 05 f5 46 01 00 16 00 00 00 eb 17 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f RSP: 002b:00007ffce6d55fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007ffce6d56020 RCX: 00007f446d4bab74 RDX: 0000000000000001 RSI: 0000000000053000 RDI: 00007f446d36d000 RBP: 00007ffce6d56740 R08: 0000000000000000 R09: 000000000014b000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007f446d4965c0 R13: 00007ffce6d567c8 R14: 000000000014ab8e R15: 0000000000000000 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 43 dc 44 f6 4c 8b 2b 4d 89 ef 49 c1 ef 03 <43> 80 3c 37 00 74 08 4c 89 ef e8 2a dc 44 f6 41 f6 45 00 01 48 89 RSP: 0018:ffffc900044a7040 EFLAGS: 00010046 RAX: 000000000016e360 RBX: ffff88807b16a820 RCX: dffffc0000000000 RDX: ffffffff81681190 RSI: ffff8880b903eb48 RDI: ffff88807b16a810 RBP: 1ffff1100f62d504 R08: ffffffff901c12ef R09: 1ffffffff203825d R10: dffffc0000000000 R11: ffffffff81671e10 R12: ffff88807b16a810 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffce6d55fc8 CR3: 000000001769e000 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 43 dc 44 f6 call 0xf644dc63 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 2a dc 44 f6 call 0xf644dc63 39: 41 f6 45 00 01 testb $0x1,0x0(%r13) 3e: 48 rex.W 3f: 89 .byte 0x89