kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3116 Comm: syz.9.760 Tainted: G W 5.4.290-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:inherit_group kernel/events/core.c:12110 [inline] RIP: 0010:inherit_task_group+0x2d2/0x380 kernel/events/core.c:12154 Code: 8b 5d d0 48 81 c3 8c 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 75 67 8b 1b 49 81 c4 8c 00 00 00 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 75 64 41 89 1c 24 45 31 e4 44 89 e0 48 83 c4 RSP: 0018:ffff8881d329f9c0 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90008d5a000 RSI: 000000000000eb39 RDI: 000000000000eb3a RBP: ffff8881d329fa10 R08: dffffc0000000000 R09: ffffed103edcb12c R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000008c R13: dffffc0000000000 R14: ffff8881e8971810 R15: ffff8881d329fac0 FS: 00007f7c9d7466c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001080 CR3: 00000001e3301000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: perf_event_init_context kernel/events/core.c:12221 [inline] perf_event_init_task+0x331/0x770 kernel/events/core.c:12273 copy_process+0xf31/0x3230 kernel/fork.c:2026 _do_fork+0x197/0x900 kernel/fork.c:2399 __do_sys_clone kernel/fork.c:2557 [inline] __se_sys_clone kernel/fork.c:2538 [inline] __x64_sys_clone+0x26b/0x2c0 kernel/fork.c:2538 do_syscall_64+0xd8/0x170 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f7c9f0dd169 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:00007f7c9d745fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f7c9f304fa0 RCX: 00007f7c9f0dd169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000e50c1600 RBP: 00007f7c9f15fa68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f7c9f304fa0 R15: 00007fffaed2a8d8 Modules linked in: ---[ end trace c4971760006f6b6d ]--- RIP: 0010:inherit_group kernel/events/core.c:12110 [inline] RIP: 0010:inherit_task_group+0x2d2/0x380 kernel/events/core.c:12154 Code: 8b 5d d0 48 81 c3 8c 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 75 67 8b 1b 49 81 c4 8c 00 00 00 4c 89 e0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 75 64 41 89 1c 24 45 31 e4 44 89 e0 48 83 c4 RSP: 0018:ffff8881d329f9c0 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90008d5a000 RSI: 000000000000eb39 RDI: 000000000000eb3a RBP: ffff8881d329fa10 R08: dffffc0000000000 R09: ffffed103edcb12c R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000008c R13: dffffc0000000000 R14: ffff8881e8971810 R15: ffff8881d329fac0 FS: 00007f7c9d7466c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001080 CR3: 00000001e3301000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 8b 5d d0 mov -0x30(%rbp),%ebx 3: 48 81 c3 8c 00 00 00 add $0x8c,%rbx a: 48 89 d8 mov %rbx,%rax d: 48 c1 e8 03 shr $0x3,%rax 11: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 16: 84 c0 test %al,%al 18: 75 67 jne 0x81 1a: 8b 1b mov (%rbx),%ebx 1c: 49 81 c4 8c 00 00 00 add $0x8c,%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 75 64 jne 0x97 33: 41 89 1c 24 mov %ebx,(%r12) 37: 45 31 e4 xor %r12d,%r12d 3a: 44 89 e0 mov %r12d,%eax 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c4 .byte 0xc4