------------[ cut here ]------------ WARNING: CPU: 1 PID: 12865 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Modules linked in: CPU: 1 PID: 12865 Comm: syz-executor.3 Not tainted 5.10.225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Code: 50 08 00 be ff ff ff ff 48 c7 c7 08 3a 02 85 e8 4e ae ad 02 31 ff 41 89 c4 89 c6 e8 d2 49 08 00 45 85 e4 75 07 e8 78 50 08 00 <0f> 0b e8 71 50 08 00 48 89 ea 83 e5 07 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff8880510b7948 EFLAGS: 00010012 RAX: 00000000000009f2 RBX: ffff888015a8f000 RCX: ffffc90002dfe000 RDX: 0000000000040000 RSI: ffffffff81384eb8 RDI: 0000000000000005 RBP: ffffffff85676f3c R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888008df0000 R14: ffff888049315800 R15: ffff88800942b140 FS: 00007f3e4a729700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000010c CR3: 0000000059e18000 CR4: 0000000000350ee0 Call Trace: cgroup_path_ns_locked+0x6c/0x110 kernel/cgroup/cgroup.c:2261 proc_cpuset_show+0x19a/0x510 kernel/cgroup/cpuset.c:3732 proc_single_show+0x121/0x1f0 fs/proc/base.c:775 traverse.part.0+0xd7/0x620 fs/seq_file.c:111 traverse fs/seq_file.c:101 [inline] seq_read_iter+0x934/0x12b0 fs/seq_file.c:195 seq_read+0x3dd/0x5b0 fs/seq_file.c:162 do_loop_readv_writev fs/read_write.c:761 [inline] do_loop_readv_writev fs/read_write.c:748 [inline] do_iter_read+0x4fa/0x760 fs/read_write.c:803 vfs_readv+0xe5/0x160 fs/read_write.c:921 do_preadv fs/read_write.c:1013 [inline] __do_sys_preadv fs/read_write.c:1063 [inline] __se_sys_preadv fs/read_write.c:1058 [inline] __x64_sys_preadv+0x235/0x310 fs/read_write.c:1058 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f3e4d1b3b19 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:00007f3e4a729188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f3e4d2c6f60 RCX: 00007f3e4d1b3b19 RDX: 0000000000000001 RSI: 0000000020000680 RDI: 0000000000000008 RBP: 00007f3e4d20df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff0b79106f R14: 00007f3e4a729300 R15: 0000000000022000 irq event stamp: 1560 hardirqs last enabled at (1559): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (1559): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (1560): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (1560): [] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167 softirqs last enabled at (1458): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (1449): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 063088f4f87d10fb ]--- EXT4-fs error (device loop5): ext4_orphan_get:1417: comm syz-executor.5: bad orphan inode 301979167 EXT4-fs (loop5): mounted filesystem without journal. Opts: ,errors=continue platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd SELinux: security_context_str_to_sid(sysadm_u) failed for (dev sda, type ext4) errno=-22 SELinux: security_context_str_to_sid(sysadm_u) failed for (dev sda, type ext4) errno=-22 platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium