general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f] CPU: 0 PID: 25804 Comm: syz-executor.0 Not tainted 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:inherit_group kernel/events/core.c:13205 [inline] RIP: 0010:inherit_task_group+0x690/0x790 kernel/events/core.c:13252 Code: 8c 00 00 00 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a0 00 00 00 41 8b 5d 00 49 81 c6 8c 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 00 00 00 41 89 1e e9 7d fa ff ff e8 RSP: 0018:ffffc90005e3f8c8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff888115132780 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88817d243750 RBP: ffffc90005e3f930 R08: dffffc0000000000 R09: ffffed103ee07002 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90005e3fa00 R13: ffff88817d24374c R14: 000000000000008c R15: dffffc0000000000 FS: 00005555574e0480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe0142c7d58 CR3: 0000000147a11000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: perf_event_init_context kernel/events/core.c:13321 [inline] perf_event_init_task+0x34d/0x7a0 kernel/events/core.c:13374 copy_process+0xfdf/0x3290 kernel/fork.c:2238 kernel_clone+0x21e/0x9e0 kernel/fork.c:2662 __do_sys_clone3 kernel/fork.c:2946 [inline] __se_sys_clone3 kernel/fork.c:2930 [inline] __x64_sys_clone3+0x376/0x3a0 kernel/fork.c:2930 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fe0155d4b99 Code: ff ff eb d2 e8 f8 62 fd ff 0f 1f 84 00 00 00 00 00 b8 ea ff ff ff 48 85 ff 74 2c 48 85 d2 74 27 49 89 c8 b8 b3 01 00 00 0f 05 <48> 85 c0 7c 18 74 01 c3 31 ed 48 83 e4 f0 4c 89 c7 ff d2 48 89 c7 RSP: 002b:00007ffeba15fab8 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fe01557d270 RCX: 00007fe0155d4b99 RDX: 00007fe01557d270 RSI: 0000000000000058 RDI: 00007ffeba15fb00 RBP: 00007fe0142c76c0 R08: 00007fe0142c76c0 R09: 00007ffeba15fbe7 R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffb0 R13: 000000000000006e R14: 00007ffeba15fb00 R15: 00007ffeba15fbe8 Modules linked in: ---[ end trace cd46a894f008794a ]--- RIP: 0010:inherit_group kernel/events/core.c:13205 [inline] RIP: 0010:inherit_task_group+0x690/0x790 kernel/events/core.c:13252 Code: 8c 00 00 00 4c 89 e8 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 a0 00 00 00 41 8b 5d 00 49 81 c6 8c 00 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 00 00 00 41 89 1e e9 7d fa ff ff e8 RSP: 0018:ffffc90005e3f8c8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff888115132780 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88817d243750 RBP: ffffc90005e3f930 R08: dffffc0000000000 R09: ffffed103ee07002 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90005e3fa00 R13: ffff88817d24374c R14: 000000000000008c R15: dffffc0000000000 FS: 00005555574e0480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 0000000147a11000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8c 00 mov %es,(%rax) 2: 00 00 add %al,(%rax) 4: 4c 89 e8 mov %r13,%rax 7: 48 c1 e8 03 shr $0x3,%rax b: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax 10: 84 c0 test %al,%al 12: 0f 85 a0 00 00 00 jne 0xb8 18: 41 8b 5d 00 mov 0x0(%r13),%ebx 1c: 49 81 c6 8c 00 00 00 add $0x8c,%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 9f 00 00 00 jne 0xd6 37: 41 89 1e mov %ebx,(%r14) 3a: e9 7d fa ff ff jmp 0xfffffabc 3f: e8 .byte 0xe8