------------[ cut here ]------------
WARNING: CPU: 1 PID: 5536 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395
Modules linked in:
CPU: 1 PID: 5536 Comm: syz-executor.3 Not tainted 5.10.226 #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 6e 9e 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:ffff88804684fb20 EFLAGS: 00010006
RAX: 0000000000000900 RBX: ffff88800991d400 RCX: ffffc90006a2c000
RDX: 0000000000040000 RSI: ffffffff81384ec8 RDI: 0000000000000005
RBP: ffffffff85676efc R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88801b2fc000 R14: ffff88800f6d7800 R15: ffff888008d5a700
FS:  00007f57da1e3700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005585f0945d78 CR3: 000000004be26000 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
 vfs_read+0x228/0x620 fs/read_write.c:494
 ksys_pread64 fs/read_write.c:686 [inline]
 __do_sys_pread64 fs/read_write.c:696 [inline]
 __se_sys_pread64 fs/read_write.c:693 [inline]
 __x64_sys_pread64+0x201/0x260 fs/read_write.c:693
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x67/0xd1
RIP: 0033:0x7f57dcc6db19
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:00007f57da1e3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 00007f57dcd80f60 RCX: 00007f57dcc6db19
RDX: 0000000000000053 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f57dccc7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000200000048 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4996c55f R14: 00007f57da1e3300 R15: 0000000000022000
irq event stamp: 368
hardirqs last  enabled at (367): [<ffffffff83e79118>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (367): [<ffffffff83e79118>] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191
hardirqs last disabled at (368): [<ffffffff83e78ece>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline]
hardirqs last disabled at (368): [<ffffffff83e78ece>] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167
softirqs last  enabled at (146): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (137): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20
---[ end trace 15abafadfd8b75e8 ]---
FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5536 at kernel/cgroup/cgroup.c:1395 cset_cgroup_from_root+0x1a8/0x2a0 kernel/cgroup/cgroup.c:1395
Modules linked in:
CPU: 0 PID: 5536 Comm: syz-executor.3 Tainted: G        W         5.10.226 #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 6e 9e 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:ffff88804684fb20 EFLAGS: 00010016
RAX: 000000000000017f RBX: ffff88800991d400 RCX: ffffc90006a2c000
RDX: 0000000000040000 RSI: ffffffff81384ec8 RDI: 0000000000000005
RBP: ffffffff85676efc R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff88801b2fc000 R14: ffff88800f6d7800 R15: ffff88800e1a0380
FS:  00007f57da1e3700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f57da1c1ff8 CR3: 000000004be26000 CR4: 0000000000350ef0
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
 vfs_read+0x228/0x620 fs/read_write.c:494
 ksys_pread64 fs/read_write.c:686 [inline]
 __do_sys_pread64 fs/read_write.c:696 [inline]
 __se_sys_pread64 fs/read_write.c:693 [inline]
 __x64_sys_pread64+0x201/0x260 fs/read_write.c:693
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x67/0xd1
RIP: 0033:0x7f57dcc6db19
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:00007f57da1e3188 EFLAGS: 00000246 ORIG_RAX: 0000000000000011
RAX: ffffffffffffffda RBX: 00007f57dcd80f60 RCX: 00007f57dcc6db19
RDX: 0000000000000053 RSI: 0000000020000240 RDI: 0000000000000004
RBP: 00007f57dccc7f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000200000048 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4996c55f R14: 00007f57da1e3300 R15: 0000000000022000
irq event stamp: 1782
hardirqs last  enabled at (1781): [<ffffffff83e79118>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (1781): [<ffffffff83e79118>] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191
hardirqs last disabled at (1782): [<ffffffff83e78ece>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:126 [inline]
hardirqs last disabled at (1782): [<ffffffff83e78ece>] _raw_spin_lock_irq+0x3e/0x40 kernel/locking/spinlock.c:167
softirqs last  enabled at (1746): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (1725): [<ffffffff84001092>] asm_call_irq_on_stack+0x12/0x20
---[ end trace 15abafadfd8b75e9 ]---
EXT4-fs warning (device sda): verify_group_input:146: Cannot add at group 256 (only 16 groups)
FAT-fs (loop6): Directory bread(block 64) failed
FAT-fs (loop6): Directory bread(block 65) failed
FAT-fs (loop6): Directory bread(block 66) failed
FAT-fs (loop6): Directory bread(block 67) failed
FAT-fs (loop6): Directory bread(block 68) failed
FAT-fs (loop6): Directory bread(block 69) failed
FAT-fs (loop6): Directory bread(block 70) failed
FAT-fs (loop6): Directory bread(block 71) failed
FAT-fs (loop6): Directory bread(block 72) failed
FAT-fs (loop6): Directory bread(block 73) failed
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.1'.
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 5553 Comm: syz-executor.7 Tainted: G        W         5.10.226 #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
 copyin lib/iov_iter.c:155 [inline]
 _copy_from_iter_full+0x201/0xa60 lib/iov_iter.c:785
 copy_from_iter_full include/linux/uio.h:169 [inline]
 memcpy_from_msg include/linux/skbuff.h:3621 [inline]
 netlink_sendmsg+0x879/0xdf0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:651 [inline]
 __sock_sendmsg+0x154/0x190 net/socket.c:663
 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x67/0xd1
RIP: 0033:0x7f63caeffb19
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:00007f63c8475188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f63cb012f60 RCX: 00007f63caeffb19
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 00007f63c84751d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcb4b0058f R14: 00007f63c8475300 R15: 0000000000022000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 5582 Comm: syz-executor.7 Tainted: G        W         5.10.226 #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
 should_failslab+0x5/0x20 mm/slab_common.c:1193
 slab_pre_alloc_hook mm/slab.h:515 [inline]
 slab_alloc_node mm/slub.c:2821 [inline]
 kmem_cache_alloc_node+0x55/0x330 mm/slub.c:2932
 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:199
 alloc_skb include/linux/skbuff.h:1102 [inline]
 netlink_dump+0x729/0x1060 net/netlink/af_netlink.c:2248
 __netlink_dump_start+0x627/0x8d0 net/netlink/af_netlink.c:2378
 netlink_dump_start include/linux/netlink.h:256 [inline]
 rtnetlink_rcv_msg+0x749/0xbb0 net/core/rtnetlink.c:5570
Invalid option length (1048265) for dns_resolver key
 netlink_rcv_skb+0x14b/0x430 net/netlink/af_netlink.c:2499
 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
 netlink_unicast+0x549/0x7f0 net/netlink/af_netlink.c:1348
 netlink_sendmsg+0x90f/0xdf0 net/netlink/af_netlink.c:1916
 sock_sendmsg_nosec net/socket.c:651 [inline]
 __sock_sendmsg+0x154/0x190 net/socket.c:663
 ____sys_sendmsg+0x70d/0x870 net/socket.c:2378
Invalid option length (1048265) for dns_resolver key
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2432
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2461
 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x67/0xd1
RIP: 0033:0x7f63caeffb19
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:00007f63c8475188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f63cb012f60 RCX: 00007f63caeffb19
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 00007f63c84751d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcb4b0058f R14: 00007f63c8475300 R15: 0000000000022000