WARNING: CPU: 0 PID: 26097 at kernel/bpf/cgroup.c:899 bpf_cgroup_link_release.part.0+0x2d1/0x3d0 kernel/bpf/cgroup.c:899 Modules linked in: CPU: 0 PID: 26097 Comm: syz-executor.3 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bpf_cgroup_link_release.part.0+0x2d1/0x3d0 kernel/bpf/cgroup.c:899 Code: 48 86 6c 07 e9 b1 fe ff ff e8 cb 3a e3 ff 48 c7 c7 20 5b bc 8b e8 3f 98 b1 07 5b 5d 41 5c 41 5d e9 b4 3a e3 ff e8 af 3a e3 ff <0f> 0b e9 bd fd ff ff e8 c3 fa 29 00 e9 19 fe ff ff e8 b9 fa 29 00 RSP: 0018:ffffc900032cfdc8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff88801ae5bc00 RCX: ffffc90003731000 RDX: 0000000000040000 RSI: ffffffff81947041 RDI: 0000000000000003 RBP: 00000000fffffff4 R08: 0000000000000000 R09: ffffffff8bccf573 R10: ffffffff81946dfd R11: 0000000000000000 R12: ffff88801ae5bc68 R13: ffff88801ae5bc18 R14: ffffc90001166000 R15: ffff8880118e70a0 FS: 00007fe7a48d8700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff23f1790d0 CR3: 00000000775ab000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: bpf_cgroup_link_release+0x38/0x50 kernel/bpf/cgroup.c:888 bpf_link_free+0xe6/0x1b0 kernel/bpf/syscall.c:2461 bpf_link_put+0x161/0x1b0 kernel/bpf/syscall.c:2487 bpf_link_release+0x33/0x40 kernel/bpf/syscall.c:2495 __fput+0x286/0x9f0 fs/file_table.c:280 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:300 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fe7a5f83e99 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe7a48d8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007fe7a6097030 RCX: 00007fe7a5f83e99 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006 RBP: 00007fe7a48d81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd47201f1f R14: 00007fe7a48d8300 R15: 0000000000022000