------------[ cut here ]------------ WARNING: CPU: 1 PID: 16220 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395 Modules linked in: CPU: 1 PID: 16220 Comm: syz-executor.1 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:ffff888065ae79b8 EFLAGS: 00010012 RAX: 0000000000000aba RBX: ffff8880158f5400 RCX: ffffc900011f0000 RDX: 0000000000040000 RSI: ffffffff81384eb8 RDI: 0000000000000005 RBP: ffffffff85676f3c R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800cc78000 R14: ffff888048ba4800 R15: 0000000000000000 FS: 00007efc5a4b8700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d021000 CR3: 0000000048922000 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 seq_read_iter+0x510/0x12b0 fs/seq_file.c:230 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_readv+0x139/0x300 fs/read_write.c:958 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7efc5cf42b19 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:00007efc5a4b8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013 RAX: ffffffffffffffda RBX: 00007efc5d055f60 RCX: 00007efc5cf42b19 RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007efc5cf9cf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdf35c52df R14: 00007efc5a4b8300 R15: 0000000000022000 irq event stamp: 164 hardirqs last enabled at (163): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (163): [] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191 hardirqs last disabled at (164): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline] hardirqs last disabled at (164): [] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167 softirqs last enabled at (0): [] copy_process+0x16ed/0x7800 kernel/fork.c:2075 softirqs last disabled at (0): [<0000000000000000>] 0x0 ---[ end trace 067f8c1cb50d6159 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1025 sclass=netlink_route_socket pid=16214 comm=syz-executor.7 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16221 Comm: syz-executor.6 Tainted: G W 5.10.225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 _copy_to_user+0x2e/0x180 lib/usercopy.c:36 copy_to_user include/linux/uaccess.h:200 [inline] fat_ioctl_filldir+0x164/0x520 fs/fat/dir.c:759 dir_emit include/linux/fs.h:3535 [inline] __fat_readdir+0x724/0x1490 fs/fat/dir.c:677 fat_ioctl_readdir+0x1b8/0x240 fs/fat/dir.c:777 fat_dir_ioctl+0xec/0x120 fs/fat/dir.c:815 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcd7e039b19 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:00007fcd7b5af188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fcd7e14cf60 RCX: 00007fcd7e039b19 RDX: 0000000020000500 RSI: 0000000082307202 RDI: 0000000000000005 RBP: 00007fcd7b5af1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe756dde8f R14: 00007fcd7b5af300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16244 Comm: syz-executor.6 Tainted: G W 5.10.225 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x167 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 _copy_from_user+0x2e/0x1b0 lib/usercopy.c:15 copy_from_user include/linux/uaccess.h:192 [inline] kstrtouint_from_user+0xbd/0x220 lib/kstrtox.c:409 proc_fail_nth_write+0x78/0x220 fs/proc/base.c:1398 vfs_write+0x29a/0xb10 fs/read_write.c:603 ksys_write+0x12d/0x260 fs/read_write.c:658 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fcd7dfec5ff Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 99 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 cc fd ff ff 48 RSP: 002b:00007fcd7b5af170 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcd7dfec5ff RDX: 0000000000000001 RSI: 00007fcd7b5af1e0 RDI: 0000000000000004 RBP: 00007fcd7b5af1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 R13: 00007ffe756dde8f R14: 00007fcd7b5af300 R15: 0000000000022000 audit: type=1326 audit(1726255308.092:442): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16213 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7faad917bb19 code=0x0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=1025 sclass=netlink_route_socket pid=16227 comm=syz-executor.7 audit: type=1326 audit(1726255308.207:443): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=16213 comm="syz-executor.7" exe="/syz-executor.7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7faad917bb19 code=0x0