RBP: 00007fc1821b0090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fc1815e6218 R14: 00007fc1815e6180 R15: 00007ffe2fedc788 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: 23903 Comm: syz.0.6317 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__traceiter_sched_switch+0x9b/0xd0 include/trace/events/sched.h:222 Code: 80 3c 30 00 74 05 e8 a4 8d 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:ffffc900071ff590 EFLAGS: 00010096 RAX: 1ffff1102217c176 RBX: ffff888110be0ba8 RCX: ffff88811d625100 RDX: ffff88811fd0bcc0 RSI: 0000000000000001 RDI: ffffc900071af000 RBP: ffffc900071ff5d0 R08: 0000000000000000 R09: fffffbfff0ee4f26 R10: 00000000b720eca3 R11: 1ffffffff0ee4f25 R12: 0000000000000001 R13: ffff888110be0ba8 R14: dffffc0000000000 R15: ffffffff81714650 FS: 00007fc1821b06c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f09d0fd5f98 CR3: 0000000126fba000 CR4: 00000000003506a0 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_reschedule_ipi+0x78/0x80 arch/x86/kernel/smp.c:244 asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:696 RIP: 0010:find_stack lib/stackdepot.c:305 [inline] RIP: 0010:__stack_depot_save+0x17f/0x480 lib/stackdepot.c:452 Code: 9f 4b 13 05 44 8b 0d 94 4b 13 05 45 21 e1 4b 8b 1c c8 48 85 db 74 63 44 89 f9 eb 08 48 8b 1b 48 85 db 74 56 44 39 63 08 75 f2 <44> 39 7b 0c 75 ec 31 d2 49 8b 34 d6 48 3b 74 d3 18 75 df 48 ff c2 RSP: 0018:ffffc900071ff870 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888133265fd0 RCX: 0000000000000012 RDX: 00000000d5d2a4ba RSI: 00000000c7ba6ef1 RDI: 0000000000000800 RBP: ffffc900071ff8d0 R08: ffff8881f5c00000 R09: 000000000007b5fe R10: 00000000fb5b3c6f R11: 0000000000000001 R12: 000000008657b5fe R13: 0000000000000000 R14: ffffc900071ff8e0 R15: 0000000000000012 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x60/0x70 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:1750 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1776 slab_free mm/slub.c:3712 [inline] __kmem_cache_free+0xb7/0x1b0 mm/slub.c:3728 kfree+0x6f/0xf0 mm/slab_common.c:990 bpf_raw_tp_link_dealloc+0x15/0x20 kernel/bpf/syscall.c:3179 bpf_link_free+0x321/0x390 kernel/bpf/syscall.c:2743 bpf_link_put kernel/bpf/syscall.c:2765 [inline] bpf_link_release+0x15f/0x170 kernel/bpf/syscall.c:2774 __fput+0x1fc/0x8f0 fs/file_table.c:320 ____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+0x87/0xd0 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: 0033:0x7fc18138f749 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:00007fc1821b0038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fc1815e6180 RCX: 00007fc18138f749 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007fc1821b0090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fc1815e6218 R14: 00007fc1815e6180 R15: 00007ffe2fedc788 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 a4 8d 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:ffffc900071ff590 EFLAGS: 00010096 RAX: 1ffff1102217c176 RBX: ffff888110be0ba8 RCX: ffff88811d625100 RDX: ffff88811fd0bcc0 RSI: 0000000000000001 RDI: ffffc900071af000 RBP: ffffc900071ff5d0 R08: 0000000000000000 R09: fffffbfff0ee4f26 R10: 00000000b720eca3 R11: 1ffffffff0ee4f25 R12: 0000000000000001 R13: ffff888110be0ba8 R14: dffffc0000000000 R15: ffffffff81714650 FS: 00007fc1821b06c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f09d0fd5f98 CR3: 0000000126fba000 CR4: 00000000003506a0 ---------------- Code disassembly (best guess): 0: 9f lahf 1: 4b 13 05 44 8b 0d 94 rex.WXB adc -0x6bf274bc(%rip),%rax # 0x940d8b4c 8: 4b 13 05 45 21 e1 4b rex.WXB adc 0x4be12145(%rip),%rax # 0x4be12154 f: 8b 1c c8 mov (%rax,%rcx,8),%ebx 12: 48 85 db test %rbx,%rbx 15: 74 63 je 0x7a 17: 44 89 f9 mov %r15d,%ecx 1a: eb 08 jmp 0x24 1c: 48 8b 1b mov (%rbx),%rbx 1f: 48 85 db test %rbx,%rbx 22: 74 56 je 0x7a 24: 44 39 63 08 cmp %r12d,0x8(%rbx) 28: 75 f2 jne 0x1c * 2a: 44 39 7b 0c cmp %r15d,0xc(%rbx) <-- trapping instruction 2e: 75 ec jne 0x1c 30: 31 d2 xor %edx,%edx 32: 49 8b 34 d6 mov (%r14,%rdx,8),%rsi 36: 48 3b 74 d3 18 cmp 0x18(%rbx,%rdx,8),%rsi 3b: 75 df jne 0x1c 3d: 48 ff c2 inc %rdx