R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc94e57ecf R14: 00007f2a76727300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 19838 at kernel/bpf/cgroup.c:900 bpf_cgroup_link_release+0x157/0x1b0 Modules linked in: CPU: 0 PID: 19838 Comm: syz-executor.0 Not tainted 5.18.0-rc6-syzkaller-00009-gfeb9c5e19e91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:bpf_cgroup_link_release+0x157/0x1b0 kernel/bpf/cgroup.c:899 Code: fa de ff 48 c7 c7 00 1a b4 8c 5b 41 5c 41 5e 41 5f 5d e9 2c 84 7d 08 e8 e7 f9 de ff 5b 41 5c 41 5e 41 5f 5d c3 e8 d9 f9 de ff <0f> 0b 42 80 7c 25 00 00 0f 85 4e ff ff ff e9 51 ff ff ff 89 f9 80 RSP: 0018:ffffc90013847dc8 EFLAGS: 00010246 RAX: ffffffff81a71b47 RBX: ffff8880236f7f68 RCX: 0000000000040000 RDX: ffffc90003261000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 1ffff110046defed R08: ffffffff81a71a8d R09: fffffbfff197fc8b R10: fffffbfff197fc8b R11: 1ffffffff197fc8a R12: dffffc0000000000 R13: ffffffff8a961ba0 R14: 00000000fffffff4 R15: ffff88807b5da000 FS: 00007f2a76727700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b5de44300 CR3: 000000007d994000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bpf_link_free kernel/bpf/syscall.c:2469 [inline] bpf_link_put+0x21d/0x2b0 kernel/bpf/syscall.c:2495 bpf_link_release+0x37/0x40 kernel/bpf/syscall.c:2504 __fput+0x3b9/0x820 fs/file_table.c:317 task_work_run+0x146/0x1c0 kernel/task_work.c:164 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f2a756890e9 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2a76727168 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007f2a7579bf60 RCX: 00007f2a756890e9 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007f2a767271d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc94e57ecf R14: 00007f2a76727300 R15: 0000000000022000