CFI failure at __traceiter_kfree+0x34/0x50 include/trace/events/kmem.h:94 (target: tp_stub_func+0x0/0x10; expected type: 0x8682d211)
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3566 Comm: syz.3.936 Not tainted 6.1.145-syzkaller-00027-g42472e1a4913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__traceiter_kfree+0x34/0x50 include/trace/events/kmem.h:94
Code: 8b 3d 88 3c ca 05 4d 85 ff 74 2e 48 89 d3 49 89 f6 49 8b 07 49 8b 7f 08 4c 89 f6 48 89 da 41 ba ef 2d 7d 79 44 03 50 fc 74 02 <0f> 0b ff d0 49 83 7f 18 00 4d 8d 7f 18 75 d8 31 c0 5b 41 5e 41 5f
RSP: 0018:ffffc900001b0bb0 EFLAGS: 00010213
RAX: ffffffff81711be0 RBX: ffff8881323fdc58 RCX: ffff88810f86bcc0
RDX: ffff8881323fdc58 RSI: ffffffff81a30f26 RDI: ffffc90000ef3000
RBP: ffffc900001b0bc8 R08: ffff8881f5c00000 R09: 00000000000a6dcf
R10: 000000001ebd94fb R11: 0000000000000001 R12: ffffffff81c421b0
R13: ffff88811db2e7a8 R14: ffffffff81a30f26 R15: ffff88810cf0a810
FS:  0000555584f09500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc19ff8 CR3: 00000001088c4000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 trace_kfree include/trace/events/kmem.h:94 [inline]
 kfree+0xc9/0xf0 mm/slab_common.c:977
 shmem_free_in_core_inode+0x76/0xb0 mm/shmem.c:3922
 i_callback+0x5a/0x80 fs/inode.c:250
 rcu_do_batch+0x515/0xb90 kernel/rcu/tree.c:2297
 rcu_core+0x5a5/0xe70 kernel/rcu/tree.c:2557
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2574
 handle_softirqs+0x1d7/0x600 kernel/softirq.c:642
 __do_softirq+0xb/0xd kernel/softirq.c:680
 do_softirq+0xc6/0x120 kernel/softirq.c:524
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:448
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
 _raw_spin_unlock_bh+0x50/0x60 kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 bpf_link_free_id kernel/bpf/syscall.c:2710 [inline]
 bpf_link_free+0xc0/0x390 kernel/bpf/syscall.c:2736
 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+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: 0033:0x7f0d9178eb69
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:00007ffe56892878 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f0d919b7ba0 RCX: 00007f0d9178eb69
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f0d919b7ba0 R08: 00000000000003b4 R09: 0000001456892b6f
R10: 00007f0d919b7ac0 R11: 0000000000000246 R12: 000000000004575a
R13: 00007f0d919b6080 R14: ffffffffffffffff R15: 00007ffe56892990
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_kfree+0x34/0x50 include/trace/events/kmem.h:94
Code: 8b 3d 88 3c ca 05 4d 85 ff 74 2e 48 89 d3 49 89 f6 49 8b 07 49 8b 7f 08 4c 89 f6 48 89 da 41 ba ef 2d 7d 79 44 03 50 fc 74 02 <0f> 0b ff d0 49 83 7f 18 00 4d 8d 7f 18 75 d8 31 c0 5b 41 5e 41 5f
RSP: 0018:ffffc900001b0bb0 EFLAGS: 00010213

RAX: ffffffff81711be0 RBX: ffff8881323fdc58 RCX: ffff88810f86bcc0
RDX: ffff8881323fdc58 RSI: ffffffff81a30f26 RDI: ffffc90000ef3000
RBP: ffffc900001b0bc8 R08: ffff8881f5c00000 R09: 00000000000a6dcf
R10: 000000001ebd94fb R11: 0000000000000001 R12: ffffffff81c421b0
R13: ffff88811db2e7a8 R14: ffffffff81a30f26 R15: ffff88810cf0a810
FS:  0000555584f09500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dc19ff8 CR3: 00000001088c4000 CR4: 00000000003526a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400