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: 0 UID: 0 PID: 5583 Comm: syz.1.62 Not tainted 6.11.0-rc5-next-20240827-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 40 d3 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 20 d3 95 00 48 8b 5d 00 49 8d af RSP: 0018:ffffc900095e6fa0 EFLAGS: 00010006 RAX: 0000000000000014 RBX: ffff8880b913eb80 RCX: ffffffff81670ea8 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888060af9e00 RBP: 00000000000000a0 R08: ffff888060af9e07 R09: 1ffff1100c15f3c0 R10: dffffc0000000000 R11: ffffed100c15f3c1 R12: ffff8880b903eac0 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fb8632be6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f253c9fa3b0 CR3: 000000002405a000 CR4: 00000000003526f0 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 swake_up_locked kernel/sched/swait.c:29 [inline] swake_up_one+0x70/0x160 kernel/sched/swait.c:52 rcu_report_unblock_qs_rnp kernel/rcu/tree.c:2376 [inline] rcu_preempt_deferred_qs_irqrestore+0x9f8/0xc70 kernel/rcu/tree_plugin.h:568 rcu_read_unlock_special+0x497/0x570 kernel/rcu/tree_plugin.h:692 __rcu_read_unlock+0xa1/0x110 kernel/rcu/tree_plugin.h:437 pfkey_add+0x2111/0x3030 net/key/af_key.c:1527 pfkey_process net/key/af_key.c:2847 [inline] pfkey_sendmsg+0xbcc/0x1050 net/key/af_key.c:3698 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmmsg+0x3ab/0x730 net/socket.c:2737 __do_sys_sendmmsg net/socket.c:2766 [inline] __se_sys_sendmmsg net/socket.c:2763 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763 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: 0033:0x7fb862579e79 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:00007fb8632be038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fb862716130 RCX: 00007fb862579e79 RDX: 000000000400008a RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007fb8625e793e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fb862716130 R15: 00007ffd4fb5ded8 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 40 d3 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 20 d3 95 00 48 8b 5d 00 49 8d af RSP: 0018:ffffc900095e6fa0 EFLAGS: 00010006 RAX: 0000000000000014 RBX: ffff8880b913eb80 RCX: ffffffff81670ea8 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888060af9e00 RBP: 00000000000000a0 R08: ffff888060af9e07 R09: 1ffff1100c15f3c0 R10: dffffc0000000000 R11: ffffed100c15f3c1 R12: ffff8880b903eac0 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fb8632be6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f253c9fa3b0 CR3: 000000002405a000 CR4: 00000000003526f0 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 40 d3 95 00 call 0x95d359 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 20 d3 95 00 call 0x95d359 39: 48 8b 5d 00 mov 0x0(%rbp),%rbx 3d: 49 rex.WB 3e: 8d .byte 0x8d 3f: af scas %es:(%rdi),%eax