RBP: 00007f55b5ada090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f55b4dc6038 R14: 00007f55b4dc5fa0 R15: 00007ffd4e67c108 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: 1 PID: 992 Comm: syz.0.156 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 e4 6b 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:ffffc90000777450 EFLAGS: 00010096 RAX: 1ffff11022bb3b36 RBX: ffff888115d9d9a8 RCX: ffff8881111da880 RDX: ffff8881111de540 RSI: 0000000000000001 RDI: ffffc90000c8b000 RBP: ffffc90000777490 R08: 0000000000000000 R09: fffffbfff0ee4ba6 R10: 00000000b720eca3 R11: 1ffffffff0ee4ba5 R12: 0000000000000001 R13: ffff888115d9d9a8 R14: dffffc0000000000 R15: ffffffff817125b0 FS: 00007f55b5ada6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f84372020 CR3: 0000000132cd1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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:decode_frame_pointer arch/x86/kernel/unwind_frame.c:169 [inline] RIP: 0010:update_stack_state+0x9c/0x480 arch/x86/kernel/unwind_frame.c:211 Code: eb 21 4c 8d 73 38 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 f7 e8 f2 60 7f 00 49 8b 06 48 83 c0 10 48 89 45 a0 44 89 f8 <83> e0 01 48 f7 d8 4c 89 fa 48 83 e2 fe 48 21 d0 48 89 45 80 4c 89 RSP: 0018:ffffc90000777738 EFLAGS: 00000286 RAX: 0000000000777ed0 RBX: ffffc90000777888 RCX: 0000000000777800 RDX: dffffc0000000000 RSI: ffffc90000777ed0 RDI: ffffc900007778e0 RBP: ffffc900007777f8 R08: ffffc90000777950 R09: ffffc90000777948 R10: 000000000000000a R11: 1ffff920000eef11 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc900007778c0 R15: ffffc90000777ed0 unwind_next_frame+0x3d5/0x700 arch/x86/kernel/unwind_frame.c:315 arch_stack_walk+0x124/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x98/0xe0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4b/0x70 mm/kasan/common.c:52 kasan_save_free_info+0x31/0x50 mm/kasan/generic.c:516 ____kasan_slab_free+0x132/0x180 mm/kasan/common.c:241 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:249 kasan_slab_free include/linux/kasan.h:178 [inline] slab_free_hook mm/slub.c:1745 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1771 slab_free mm/slub.c:3686 [inline] kmem_cache_free+0x12d/0x300 mm/slub.c:3711 security_file_free+0xd8/0xf0 security/security.c:1562 file_free fs/file_table.c:56 [inline] __fput+0x5f4/0x8f0 fs/file_table.c:333 ____fput+0x15/0x20 fs/file_table.c:348 task_work_run+0x1db/0x240 kernel/task_work.c:203 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x9b/0xb0 kernel/entry/common.c:177 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:303 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f55b4b8ebe9 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:00007f55b5ada038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f55b4dc5fa0 RCX: 00007f55b4b8ebe9 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f55b5ada090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f55b4dc6038 R14: 00007f55b4dc5fa0 R15: 00007ffd4e67c108 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 e4 6b 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:ffffc90000777450 EFLAGS: 00010096 RAX: 1ffff11022bb3b36 RBX: ffff888115d9d9a8 RCX: ffff8881111da880 RDX: ffff8881111de540 RSI: 0000000000000001 RDI: ffffc90000c8b000 RBP: ffffc90000777490 R08: 0000000000000000 R09: fffffbfff0ee4ba6 R10: 00000000b720eca3 R11: 1ffffffff0ee4ba5 R12: 0000000000000001 R13: ffff888115d9d9a8 R14: dffffc0000000000 R15: ffffffff817125b0 FS: 00007f55b5ada6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f84372020 CR3: 0000000132cd1000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: eb 21 jmp 0x23 2: 4c 8d 73 38 lea 0x38(%rbx),%r14 6: 4c 89 f0 mov %r14,%rax 9: 48 c1 e8 03 shr $0x3,%rax d: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 12: 74 08 je 0x1c 14: 4c 89 f7 mov %r14,%rdi 17: e8 f2 60 7f 00 call 0x7f610e 1c: 49 8b 06 mov (%r14),%rax 1f: 48 83 c0 10 add $0x10,%rax 23: 48 89 45 a0 mov %rax,-0x60(%rbp) 27: 44 89 f8 mov %r15d,%eax * 2a: 83 e0 01 and $0x1,%eax <-- trapping instruction 2d: 48 f7 d8 neg %rax 30: 4c 89 fa mov %r15,%rdx 33: 48 83 e2 fe and $0xfffffffffffffffe,%rdx 37: 48 21 d0 and %rdx,%rax 3a: 48 89 45 80 mov %rax,-0x80(%rbp) 3e: 4c rex.WR 3f: 89 .byte 0x89