R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fbd9fde6038 R14: 00007fbd9fde5fa0 R15: 00007fffa2a09588 CFI failure at __traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 (target: tp_stub_func+0x0/0x10; expected type: 0xee1f7a69) invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2523 Comm: syz.2.792 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 64 75 69 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 41 ba 97 85 e0 11 45 03 57 fc 74 02 <0f> 0b 41 ff d7 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 RSP: 0018:ffffc9000e39f870 EFLAGS: 00010096 RAX: 1ffff11023a1774f RBX: ffff88811d0bba70 RCX: ffff888112895100 RDX: ffff888112896540 RSI: 0000000000000001 RDI: ffffc900009b7000 RBP: ffffc9000e39f8b0 R08: 0000000000000000 R09: fffffbfff0ee4dde R10: 00000000b720eca3 R11: 1ffffffff0ee4ddd R12: 0000000000000001 R13: ffff88811d0bba70 R14: dffffc0000000000 R15: ffffffff81713a50 FS: 00007fbda0ac46c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 0000000111f51000 CR4: 00000000003506b0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: trace_sched_switch include/trace/events/sched.h:222 [inline] __schedule+0x1263/0x14e0 kernel/sched/core.c:6747 preempt_schedule_irq+0x9b/0x110 kernel/sched/core.c:7062 raw_irqentry_exit_cond_resched+0x29/0x30 kernel/entry/common.c:396 irqentry_exit+0x37/0x40 kernel/entry/common.c:439 sysvec_apic_timer_interrupt+0x64/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:28 [inline] RIP: 0010:futex_hb_waiters_pending kernel/futex/futex.h:213 [inline] RIP: 0010:futex_wake+0x184/0x890 kernel/futex/waitwake.c:163 Code: f0 83 44 24 fc 00 48 89 c7 be 04 00 00 00 e8 63 20 4e 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 d4 04 00 00 41 8b 1f <45> 31 e4 31 ff 89 de e8 a0 b2 09 00 85 db 0f 84 e6 03 00 00 4c 8d RSP: 0018:ffffc9000e39fb60 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81666f5d RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888108992500 RBP: ffffc9000e39fcd0 R08: dffffc0000000000 R09: ffffed10211324a1 R10: ffffed10211324a1 R11: 1ffff110211324a0 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc9000e39fbe0 R15: ffff888108992500 do_futex+0x2b9/0x420 kernel/futex/syscalls.c:113 __do_sys_futex kernel/futex/syscalls.c:185 [inline] __se_sys_futex+0x273/0x2e0 kernel/futex/syscalls.c:166 __x64_sys_futex+0xe5/0x100 kernel/futex/syscalls.c:166 x64_sys_call+0x7ec/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:203 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fbd9fb8eec9 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:00007fbda0ac40e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fbd9fde5fa8 RCX: 00007fbd9fb8eec9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fbd9fde5fac RBP: 00007fbd9fde5fa0 R08: 000dc022f3d3b69c R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fbd9fde6038 R14: 00007fffa2a094a0 R15: 00007fffa2a09588 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 64 75 69 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 41 ba 97 85 e0 11 45 03 57 fc 74 02 <0f> 0b 41 ff d7 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 RSP: 0018:ffffc9000e39f870 EFLAGS: 00010096 RAX: 1ffff11023a1774f RBX: ffff88811d0bba70 RCX: ffff888112895100 RDX: ffff888112896540 RSI: 0000000000000001 RDI: ffffc900009b7000 RBP: ffffc9000e39f8b0 R08: 0000000000000000 R09: fffffbfff0ee4dde R10: 00000000b720eca3 R11: 1ffffffff0ee4ddd R12: 0000000000000001 R13: ffff88811d0bba70 R14: dffffc0000000000 R15: ffffffff81713a50 FS: 00007fbda0ac46c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000000 CR3: 0000000111f51000 CR4: 00000000003506b0 DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: f0 83 44 24 fc 00 lock addl $0x0,-0x4(%rsp) 6: 48 89 c7 mov %rax,%rdi 9: be 04 00 00 00 mov $0x4,%esi e: e8 63 20 4e 00 call 0x4e2076 13: 4c 89 f8 mov %r15,%rax 16: 48 c1 e8 03 shr $0x3,%rax 1a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 1f: 84 c0 test %al,%al 21: 0f 85 d4 04 00 00 jne 0x4fb 27: 41 8b 1f mov (%r15),%ebx * 2a: 45 31 e4 xor %r12d,%r12d <-- trapping instruction 2d: 31 ff xor %edi,%edi 2f: 89 de mov %ebx,%esi 31: e8 a0 b2 09 00 call 0x9b2d6 36: 85 db test %ebx,%ebx 38: 0f 84 e6 03 00 00 je 0x424 3e: 4c rex.WR 3f: 8d .byte 0x8d