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: 463 Comm: syz-executor.0 Not tainted 5.4.281-syzkaller-04937-gd883a2284ec1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:inherit_group kernel/events/core.c:12104 [inline] RIP: 0010:inherit_task_group+0x1bf/0x390 kernel/events/core.c:12148 Code: c5 8c 00 00 00 48 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 86 01 00 00 8b 5d 00 49 81 c7 8c 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 85 01 00 00 41 89 1f 45 31 ff e9 f4 00 RSP: 0018:ffff8881d9ef79c8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff8881f32f0fc0 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881ef73f890 RBP: ffff8881ef73f88c R08: dffffc0000000000 R09: ffffed103edcb12c R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881d9ef7ac0 R14: ffff8881ef73f810 R15: 000000000000008c FS: 00007f28fb3ac6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f28fb38bd58 CR3: 00000001eefef000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_event_init_context kernel/events/core.c:12215 [inline] perf_event_init_task+0x331/0x770 kernel/events/core.c:12267 copy_process+0xf2b/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+0xca/0x1c0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x5c/0xc1 RIP: 0033:0x7f28fb84bda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f28fb3ac078 EFLAGS: 00000206 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f28fb97a050 RCX: 00007f28fb84bda9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000002400 RBP: 00007f28fb89847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 000000000000000b R14: 00007f28fb97a050 R15: 00007ffe73a91618 Modules linked in: ---[ end trace da336d6d92641741 ]--- RIP: 0010:inherit_group kernel/events/core.c:12104 [inline] RIP: 0010:inherit_task_group+0x1bf/0x390 kernel/events/core.c:12148 Code: c5 8c 00 00 00 48 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 86 01 00 00 8b 5d 00 49 81 c7 8c 00 00 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 85 01 00 00 41 89 1f 45 31 ff e9 f4 00 RSP: 0018:ffff8881d9ef79c8 EFLAGS: 00010207 RAX: 0000000000000011 RBX: 0000000000000000 RCX: ffff8881f32f0fc0 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881ef73f890 RBP: ffff8881ef73f88c R08: dffffc0000000000 R09: ffffed103edcb12c R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881d9ef7ac0 R14: ffff8881ef73f810 R15: 000000000000008c FS: 00007f28fb3ac6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f28fb3cd990 CR3: 00000001eefef000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 8c 00 mov %es,(%rax) 2: 00 00 add %al,(%rax) 4: 48 89 e8 mov %rbp,%rax 7: 48 c1 e8 03 shr $0x3,%rax b: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax 10: 84 c0 test %al,%al 12: 0f 85 86 01 00 00 jne 0x19e 18: 8b 5d 00 mov 0x0(%rbp),%ebx 1b: 49 81 c7 8c 00 00 00 add $0x8c,%r15 22: 4c 89 f8 mov %r15,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 85 01 00 00 jne 0x1bb 36: 41 89 1f mov %ebx,(%r15) 39: 45 31 ff xor %r15d,%r15d 3c: e9 .byte 0xe9 3d: f4 hlt