------------[ cut here ]------------ WARNING: CPU: 0 PID: 4212 at kernel/cgroup/cgroup.c:1471 cset_cgroup_from_root+0x214/0x2c0 Modules linked in: CPU: 0 PID: 4212 Comm: syz.0.159 Not tainted 6.1.104-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:cset_cgroup_from_root+0x214/0x2c0 kernel/cgroup/cgroup.c:1471 Code: 09 00 eb 98 e8 3d 91 09 00 4d 85 e4 0f 84 b0 00 00 00 e8 2f 91 09 00 4c 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1c 91 09 00 <0f> 0b e9 57 fe ff ff e8 10 91 09 00 0f 0b e9 ac fe ff ff e8 04 91 RSP: 0018:ffffc9000bbbf8f0 EFLAGS: 00010083 RAX: ffffffff81810ee4 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90003db1000 RSI: 0000000000000584 RDI: 0000000000000585 RBP: dffffc0000000000 R08: ffffffff81810d35 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888074f66000 R13: dffffc0000000000 R14: ffff88807b100000 R15: ffff888142391800 FS: 00007f6cec0836c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37d565 CR3: 000000007f78e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> cgroup_path_ns_locked+0x6c/0xd0 kernel/cgroup/cgroup.c:2358 proc_cpuset_show+0x2a7/0x430 kernel/cgroup/cpuset.c:4220 proc_single_show+0xf6/0x180 fs/proc/base.c:777 traverse+0x1d5/0x530 fs/seq_file.c:111 seq_read_iter+0xc0c/0xd10 fs/seq_file.c:195 seq_read+0x289/0x380 fs/seq_file.c:162 vfs_read+0x2ed/0xbf0 fs/read_write.c:468 ksys_pread64 fs/read_write.c:665 [inline] __do_sys_pread64 fs/read_write.c:675 [inline] __se_sys_pread64 fs/read_write.c:672 [inline] __x64_sys_pread64+0x1a6/0x230 fs/read_write.c:672 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f6ceb3799f9 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:00007f6cec083038 EFLAGS: 00000246 ORIG_RAX: 0000000000000011 RAX: ffffffffffffffda RBX: 00007f6ceb515f80 RCX: 00007f6ceb3799f9 RDX: 00000000000000dd RSI: 0000000020000240 RDI: 0000000000000003 RBP: 00007f6ceb3e78ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6ceb515f80 R15: 00007fff56630088 </TASK>