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: 5859 Comm: syz.3.95 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:359 [inline]
RIP: 0010:__rb_erase_color+0x37c/0xa30 lib/rbtree.c:413
Code: 03 00 74 08 4c 89 f7 e8 a2 dc 44 f6 4d 89 26 49 8d 5c 24 01 48 8b 6c 24 08 48 89 e8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df <42> 80 3c 30 00 74 08 48 89 ef e8 75 dc 44 f6 48 89 5d 00 4c 89 e3
RSP: 0018:ffffc900099ff6e0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880252a9e91 RCX: dffffc0000000000
RDX: ffffffff81681190 RSI: ffff88806fe6f048 RDI: ffff8880252a9e90
RBP: 0000000000000000 R08: ffffffff901c12ef R09: 1ffffffff203825d
R10: dffffc0000000000 R11: fffffbfff203825e R12: ffff8880252a9e90
R13: ffff88805a1d9e90 R14: dffffc0000000000 R15: 1ffff1100b43b3d2
FS:  00005555649ab500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005573b0a91950 CR3: 000000007a806000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 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
 dequeue_entity+0x7b0/0x1a70 kernel/sched/fair.c:5516
 dequeue_entities+0x234/0xfa0 kernel/sched/fair.c:7090
 dequeue_task_fair+0xad/0x150 kernel/sched/fair.c:7178
 block_task kernel/sched/core.c:2079 [inline]
 __schedule+0x5d9/0x4b30 kernel/sched/core.c:6627
 __schedule_loop kernel/sched/core.c:6754 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6769
 do_nanosleep+0x197/0x600 kernel/time/hrtimer.c:2032
 hrtimer_nanosleep+0x21f/0x480 kernel/time/hrtimer.c:2085
 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1411 [inline]
 __se_sys_clock_nanosleep+0x32b/0x3c0 kernel/time/posix-timers.c:1388
 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: 0033:0x7f7ca37abf65
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 c6 57 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 1f 58 ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007ffc0ef10ad0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 00007f7ca3915f80 RCX: 00007f7ca37abf65
RDX: 00007ffc0ef10b10 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f7ca3917a80 R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000017264
R13: 00007ffc0ef10c30 R14: 00007ffc0ef10c50 R15: ffffffffffffffff
 </TASK>
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:359 [inline]
RIP: 0010:__rb_erase_color+0x37c/0xa30 lib/rbtree.c:413
Code: 03 00 74 08 4c 89 f7 e8 a2 dc 44 f6 4d 89 26 49 8d 5c 24 01 48 8b 6c 24 08 48 89 e8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df <42> 80 3c 30 00 74 08 48 89 ef e8 75 dc 44 f6 48 89 5d 00 4c 89 e3
RSP: 0018:ffffc900099ff6e0 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880252a9e91 RCX: dffffc0000000000
RDX: ffffffff81681190 RSI: ffff88806fe6f048 RDI: ffff8880252a9e90
RBP: 0000000000000000 R08: ffffffff901c12ef R09: 1ffffffff203825d
R10: dffffc0000000000 R11: fffffbfff203825e R12: ffff8880252a9e90
R13: ffff88805a1d9e90 R14: dffffc0000000000 R15: 1ffff1100b43b3d2
FS:  00005555649ab500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005573b0a91950 CR3: 000000007a806000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
   0:	03 00                	add    (%rax),%eax
   2:	74 08                	je     0xc
   4:	4c 89 f7             	mov    %r14,%rdi
   7:	e8 a2 dc 44 f6       	call   0xf644dcae
   c:	4d 89 26             	mov    %r12,(%r14)
   f:	49 8d 5c 24 01       	lea    0x1(%r12),%rbx
  14:	48 8b 6c 24 08       	mov    0x8(%rsp),%rbp
  19:	48 89 e8             	mov    %rbp,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	49 be 00 00 00 00 00 	movabs $0xdffffc0000000000,%r14
  27:	fc ff df
* 2a:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 ef             	mov    %rbp,%rdi
  34:	e8 75 dc 44 f6       	call   0xf644dcae
  39:	48 89 5d 00          	mov    %rbx,0x0(%rbp)
  3d:	4c 89 e3             	mov    %r12,%rbx