Oops: general protection fault, probably for non-canonical address 0xdffffc0000000014: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000a0-0x00000000000000a7]
CPU: 1 UID: 0 PID: 5306 Comm: syz.2.3 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:is_same_group kernel/sched/fair.c:411 [inline]
RIP: 0010:find_matching_se kernel/sched/fair.c:448 [inline]
RIP: 0010:check_preempt_wakeup_fair+0x471/0xb00 kernel/sched/fair.c:8679
Code: 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 30 71 95 00 4d 8b 3f 49 8d ae a0 00 00 00 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 10 71 95 00 48 8b 5d 00 49 8d af
RSP: 0018:ffffc90000a18980 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff8880b903eb00 RCX: ffffffff81671258
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888021323c00
RBP: 00000000000000a0 R08: ffff888021323c07 R09: 1ffff11004264780
R10: dffffc0000000000 R11: ffffed1004264781 R12: ffff8880b913ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00005555889bc500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c423514 CR3: 000000007b386000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
wakeup_preempt+0xd8/0x2a0 kernel/sched/core.c:2128
ttwu_do_activate+0x1f8/0x7e0 kernel/sched/core.c:3666
ttwu_queue kernel/sched/core.c:3940 [inline]
try_to_wake_up+0x8bc/0x1480 kernel/sched/core.c:4266
call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794
expire_timers kernel/time/timer.c:1845 [inline]
__run_timers kernel/time/timer.c:2419 [inline]
__run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430
run_timer_base kernel/time/timer.c:2439 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
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:raw_spin_rq_unlock_irq+0x19/0x90 kernel/sched/sched.h:1501
Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 48 89 fb eb 18 48 89 df e8 6e cf 63 0a e8 89 89 36 00 fb 5b <41> 5e 41 5f c3 cc cc cc cc f3 0f 1e fa 49 bf 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003b6f7e8 EFLAGS: 00000282
RAX: b83134fc9f696400 RBX: ffff8880b913ea40 RCX: ffffffff94f95903
RDX: dffffc0000000000 RSI: ffffffff8c0ace40 RDI: ffffffff8c609f20
RBP: ffffc90003b6f9f0 R08: ffffffff901c12ef R09: 1ffffffff203825d
R10: dffffc0000000000 R11: fffffbfff203825e R12: 0000000000000002
R13: ffff888021323c00 R14: ffff8880b913f858 R15: dffffc0000000000
__schedule+0x1a91/0x4b30 kernel/sched/core.c:6681
__schedule_loop kernel/sched/core.c:6754 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6769
futex_wait_queue+0x14e/0x1d0 kernel/futex/waitwake.c:370
__futex_wait+0x17f/0x320 kernel/futex/waitwake.c:669
futex_wait+0x101/0x360 kernel/futex/waitwake.c:697
do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
__do_sys_futex kernel/futex/syscalls.c:179 [inline]
__se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
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: 0033:0x7fa160d79e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff8bfc1cc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000010305 RCX: 00007fa160d79e79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa160f16064
RBP: 00007fa160f16064 R08: 00007fa160f15f80 R09: 00007fff8bfc1faf
R10: 00007fff8bfc1dc0 R11: 0000000000000246 R12: 0000000000000032
R13: 00007fff8bfc1dc0 R14: 00007fff8bfc1de0 R15: 00000000000102d3
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:is_same_group kernel/sched/fair.c:411 [inline]
RIP: 0010:find_matching_se kernel/sched/fair.c:448 [inline]
RIP: 0010:check_preempt_wakeup_fair+0x471/0xb00 kernel/sched/fair.c:8679
Code: 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 30 71 95 00 4d 8b 3f 49 8d ae a0 00 00 00 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 10 71 95 00 48 8b 5d 00 49 8d af
RSP: 0018:ffffc90000a18980 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff8880b903eb00 RCX: ffffffff81671258
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888021323c00
RBP: 00000000000000a0 R08: ffff888021323c07 R09: 1ffff11004264780
R10: dffffc0000000000 R11: ffffed1004264781 R12: ffff8880b913ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 00005555889bc500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c423514 CR3: 000000007b386000 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: 00 4c 89 f8 add %cl,-0x8(%rcx,%rcx,4)
6: 48 c1 e8 03 shr $0x3,%rax
a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
f: 74 08 je 0x19
11: 4c 89 ff mov %r15,%rdi
14: e8 30 71 95 00 call 0x957149
19: 4d 8b 3f mov (%r15),%r15
1c: 49 8d ae a0 00 00 00 lea 0xa0(%r14),%rbp
23: 48 89 e8 mov %rbp,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 ef mov %rbp,%rdi
34: e8 10 71 95 00 call 0x957149
39: 48 8b 5d 00 mov 0x0(%rbp),%rbx
3d: 49 rex.WB
3e: 8d .byte 0x8d
3f: af scas %es:(%rdi),%eax