[ 76.800066][ T1138] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.0.28' (ED25519) to the list of known hosts.
2023/12/19 09:38:18 ignoring optional flag "sandboxArg"="0"
2023/12/19 09:38:19 parsed 1 programs
2023/12/19 09:38:20 executed programs: 0
[ 80.957538][ T5409] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k
[ 81.013855][ T4459] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1
[ 81.022567][ T4459] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9
[ 81.030618][ T4459] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9
[ 81.038886][ T4459] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4
[ 81.046511][ T4459] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3
[ 81.054568][ T4459] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2
[ 81.174986][ T5415] chnl_net:caif_netlink_parms(): no params data found
[ 81.229685][ T5415] bridge0: port 1(bridge_slave_0) entered blocking state
[ 81.236840][ T5415] bridge0: port 1(bridge_slave_0) entered disabled state
[ 81.244539][ T5415] bridge_slave_0: entered allmulticast mode
[ 81.251472][ T5415] bridge_slave_0: entered promiscuous mode
[ 81.259955][ T5415] bridge0: port 2(bridge_slave_1) entered blocking state
[ 81.267043][ T5415] bridge0: port 2(bridge_slave_1) entered disabled state
[ 81.274328][ T5415] bridge_slave_1: entered allmulticast mode
[ 81.281277][ T5415] bridge_slave_1: entered promiscuous mode
[ 81.309673][ T5415] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link
[ 81.321255][ T5415] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link
[ 81.348968][ T5415] team0: Port device team_slave_0 added
[ 81.357188][ T5415] team0: Port device team_slave_1 added
[ 81.380975][ T5415] batman_adv: batadv0: Adding interface: batadv_slave_0
[ 81.388010][ T5415] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 81.414293][ T5415] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active
[ 81.427119][ T5415] batman_adv: batadv0: Adding interface: batadv_slave_1
[ 81.434124][ T5415] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem.
[ 81.460190][ T5415] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active
[ 81.495242][ T5415] hsr_slave_0: entered promiscuous mode
[ 81.501648][ T5415] hsr_slave_1: entered promiscuous mode
[ 82.085640][ T5415] netdevsim netdevsim0 netdevsim0: renamed from eth0
[ 82.100884][ T5415] netdevsim netdevsim0 netdevsim1: renamed from eth1
[ 82.112009][ T5415] netdevsim netdevsim0 netdevsim2: renamed from eth2
[ 82.124589][ T5415] netdevsim netdevsim0 netdevsim3: renamed from eth3
[ 82.155010][ T5415] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.162279][ T5415] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 82.169796][ T5415] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.177320][ T5415] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 82.241657][ T27] bridge0: port 1(bridge_slave_0) entered disabled state
[ 82.250750][ T27] bridge0: port 2(bridge_slave_1) entered disabled state
[ 82.292595][ T5415] 8021q: adding VLAN 0 to HW filter on device bond0
[ 82.317345][ T5415] 8021q: adding VLAN 0 to HW filter on device team0
[ 82.333708][ T27] bridge0: port 1(bridge_slave_0) entered blocking state
[ 82.341354][ T27] bridge0: port 1(bridge_slave_0) entered forwarding state
[ 82.366446][ T27] bridge0: port 2(bridge_slave_1) entered blocking state
[ 82.373743][ T27] bridge0: port 2(bridge_slave_1) entered forwarding state
[ 82.413880][ T5415] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network
[ 82.579521][ T5415] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 82.636253][ T5415] veth0_vlan: entered promiscuous mode
[ 82.652468][ T5415] veth1_vlan: entered promiscuous mode
[ 82.690035][ T5415] veth0_macvtap: entered promiscuous mode
[ 82.703494][ T5415] veth1_macvtap: entered promiscuous mode
[ 82.726935][ T5415] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 82.743885][ T5415] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 82.760827][ T5415] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 82.771087][ T5415] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 82.782418][ T5415] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 82.793091][ T5415] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 82.876964][ T67] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 82.892427][ T67] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 82.926655][ T5076] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 82.935947][ T5076] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 83.109638][ T50] Bluetooth: hci0: command 0x0409 tx timeout
[ 83.298872][ T5482] loop0: detected capacity change from 0 to 32768
[ 83.312575][ T5482] BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 scanned by syz-executor.0 (5482)
[ 83.337003][ T5482] BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
[ 83.351606][ T5482] BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm
[ 83.360630][ T5482] BTRFS info (device loop0): enabling auto defrag
[ 83.367129][ T5482] BTRFS info (device loop0): enabling disk space caching
[ 83.375614][ T5482] BTRFS info (device loop0): max_inline at 0
[ 83.382706][ T5482] BTRFS info (device loop0): force clearing of disk cache
[ 83.391297][ T5482] BTRFS info (device loop0): turning on sync discard
[ 83.398382][ T5482] BTRFS info (device loop0): disk space caching is enabled
[ 83.458913][ T5482] BTRFS info (device loop0): enabling ssd optimizations
[ 83.471462][ T5482] BTRFS info (device loop0): rebuilding free space tree
[ 83.523553][ T5482] BTRFS info (device loop0): disabling free space tree
[ 83.532771][ T5482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
[ 83.543930][ T5482] BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
[ 83.591752][ T5482] ==================================================================
[ 83.599850][ T5482] BUG: KASAN: slab-out-of-bounds in string+0x218/0x2b0
[ 83.606727][ T5482] Read of size 1 at addr ffff88807bb70a28 by task syz-executor.0/5482
[ 83.614889][ T5482]
[ 83.617219][ T5482] CPU: 0 PID: 5482 Comm: syz-executor.0 Not tainted 6.7.0-rc5-syzkaller-00200-g3bd7d7488169-dirty #0
[ 83.628174][ T5482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 83.638239][ T5482] Call Trace:
[ 83.641539][ T5482]
[ 83.644484][ T5482] dump_stack_lvl+0x1e7/0x2d0
[ 83.649185][ T5482] ? nf_tcp_handle_invalid+0x650/0x650
[ 83.654666][ T5482] ? panic+0x850/0x850
[ 83.658750][ T5482] ? _printk+0xd5/0x120
[ 83.662924][ T5482] print_report+0x163/0x540
[ 83.667552][ T5482] ? __virt_addr_valid+0x22f/0x2e0
[ 83.672680][ T5482] ? __phys_addr+0xba/0x170
[ 83.677203][ T5482] ? string+0x218/0x2b0
[ 83.681377][ T5482] kasan_report+0x142/0x170
[ 83.686160][ T5482] ? string+0x218/0x2b0
[ 83.690329][ T5482] string+0x218/0x2b0
[ 83.694335][ T5482] vsnprintf+0x1101/0x1da0
[ 83.698774][ T5482] ? __lock_acquire+0x1345/0x1fd0
[ 83.703824][ T5482] ? ptr_to_hashval+0x80/0x80
[ 83.708521][ T5482] vprintk_store+0x47f/0x1160
[ 83.713216][ T5482] ? lockdep_unlock+0x169/0x300
[ 83.718080][ T5482] ? printk_parse_prefix+0x3d0/0x3d0
[ 83.723382][ T5482] ? _find_first_zero_bit+0xd4/0x100
[ 83.728686][ T5482] ? validate_chain+0x15c6/0x5ab0
[ 83.733739][ T5482] ? reacquire_held_locks+0x690/0x690
[ 83.739136][ T5482] ? reacquire_held_locks+0x690/0x690
[ 83.744534][ T5482] vprintk_emit+0x119/0x720
[ 83.749057][ T5482] ? printk_sprint+0x480/0x480
[ 83.753834][ T5482] ? stack_trace_save+0x117/0x1c0
[ 83.758871][ T5482] ? stack_trace_snprint+0xf0/0xf0
[ 83.764003][ T5482] _printk+0xd5/0x120
[ 83.767999][ T5482] ? btrfs_dev_replace_by_ioctl+0xc7/0x2020
[ 83.773905][ T5482] ? panic+0x850/0x850
[ 83.777987][ T5482] ? __lock_acquire+0x1345/0x1fd0
[ 83.783025][ T5482] btrfs_dev_replace_by_ioctl+0x16e/0x2020
[ 83.788855][ T5482] ? btrfs_finish_block_group_to_copy+0x480/0x480
[ 83.795287][ T5482] ? btrfs_ioctl_dev_replace+0x2be/0x390
[ 83.800936][ T5482] ? do_raw_spin_lock+0x14e/0x370
[ 83.805975][ T5482] ? __lock_acquire+0x1fd0/0x1fd0
[ 83.811012][ T5482] ? do_raw_spin_unlock+0x13b/0x8b0
[ 83.816233][ T5482] btrfs_ioctl_dev_replace+0x2c9/0x390
[ 83.821713][ T5482] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 83.828142][ T5482] __se_sys_ioctl+0xf8/0x170
[ 83.832756][ T5482] do_syscall_64+0x45/0x110
[ 83.837278][ T5482] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 83.843193][ T5482] RIP: 0033:0x7f9e6107cba9
[ 83.847615][ T5482] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
[ 83.867234][ T5482] RSP: 002b:00007f9e61de30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 83.875666][ T5482] RAX: ffffffffffffffda RBX: 00007f9e6119bf80 RCX: 00007f9e6107cba9
[ 83.883652][ T5482] RDX: 0000000020000540 RSI: 00000000ca289435 RDI: 0000000000000005
[ 83.891723][ T5482] RBP: 00007f9e610c847a R08: 0000000000000000 R09: 0000000000000000
[ 83.900314][ T5482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 83.908654][ T5482] R13: 000000000000000b R14: 00007f9e6119bf80 R15: 00007fffc9000478
[ 83.916655][ T5482]
[ 83.919785][ T5482]
[ 83.922120][ T5482] Allocated by task 5482:
[ 83.926503][ T5482] kasan_set_track+0x4f/0x70
[ 83.931112][ T5482] __kasan_kmalloc+0x98/0xb0
[ 83.935714][ T5482] __kmalloc_node_track_caller+0xb1/0x190
[ 83.941441][ T5482] memdup_user+0x2b/0xc0
[ 83.945714][ T5482] btrfs_ioctl_dev_replace+0xb8/0x390
[ 83.951096][ T5482] __se_sys_ioctl+0xf8/0x170
[ 83.955702][ T5482] do_syscall_64+0x45/0x110
[ 83.960325][ T5482] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 83.966409][ T5482]
[ 83.968739][ T5482] The buggy address belongs to the object at ffff88807bb70000
[ 83.968739][ T5482] which belongs to the cache kmalloc-4k of size 4096
[ 83.982971][ T5482] The buggy address is located 0 bytes to the right of
[ 83.982971][ T5482] allocated 2600-byte region [ffff88807bb70000, ffff88807bb70a28)
[ 83.997557][ T5482]
[ 83.999883][ T5482] The buggy address belongs to the physical page:
[ 84.006292][ T5482] page:ffffea0001eedc00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7bb70
[ 84.016538][ T5482] head:ffffea0001eedc00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 84.025571][ T5482] flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 84.033560][ T5482] page_type: 0xffffffff()
[ 84.037899][ T5482] raw: 00fff00000000840 ffff888012c42140 dead000000000122 0000000000000000
[ 84.046485][ T5482] raw: 0000000000000000 0000000080040004 00000001ffffffff 0000000000000000
[ 84.055155][ T5482] page dumped because: kasan: bad access detected
[ 84.061567][ T5482] page_owner tracks the page as allocated
[ 84.067289][ T5482] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 5482, tgid 5481 (syz-executor.0), ts 83591699256, free_ts 83563781743
[ 84.090318][ T5482] post_alloc_hook+0x1e6/0x210
[ 84.095105][ T5482] get_page_from_freelist+0x33ea/0x3570
[ 84.100670][ T5482] __alloc_pages+0x255/0x680
[ 84.105362][ T5482] alloc_pages_mpol+0x3de/0x640
[ 84.110224][ T5482] alloc_slab_page+0x6a/0x170
[ 84.114909][ T5482] new_slab+0x84/0x2f0
[ 84.119105][ T5482] ___slab_alloc+0xc8a/0x1330
[ 84.123802][ T5482] __kmem_cache_alloc_node+0x21d/0x300
[ 84.129392][ T5482] __kmalloc_node_track_caller+0xa0/0x190
[ 84.135133][ T5482] memdup_user+0x2b/0xc0
[ 84.139483][ T5482] btrfs_ioctl_dev_replace+0xb8/0x390
[ 84.144872][ T5482] __se_sys_ioctl+0xf8/0x170
[ 84.149477][ T5482] do_syscall_64+0x45/0x110
[ 84.154168][ T5482] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 84.160089][ T5482] page last free stack trace:
[ 84.164766][ T5482] free_unref_page_prepare+0x931/0xa60
[ 84.170498][ T5482] free_unref_page+0x37/0x3f0
[ 84.175300][ T5482] __unfreeze_partials+0x1e0/0x220
[ 84.180420][ T5482] put_cpu_partial+0x17b/0x250
[ 84.185195][ T5482] __slab_free+0x2b6/0x390
[ 84.189621][ T5482] qlist_free_all+0x75/0xe0
[ 84.194138][ T5482] kasan_quarantine_reduce+0x14b/0x160
[ 84.199614][ T5482] __kasan_slab_alloc+0x23/0x70
[ 84.204833][ T5482] slab_post_alloc_hook+0x6c/0x3c0
[ 84.209962][ T5482] kmem_cache_alloc+0x19e/0x2b0
[ 84.214834][ T5482] __anon_vma_prepare+0x68/0x410
[ 84.219959][ T5482] handle_mm_fault+0x5516/0x6680
[ 84.225097][ T5482] exc_page_fault+0x2ad/0x870
[ 84.229788][ T5482] asm_exc_page_fault+0x26/0x30
[ 84.234653][ T5482]
[ 84.237073][ T5482] Memory state around the buggy address:
[ 84.242706][ T5482] ffff88807bb70900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 84.250876][ T5482] ffff88807bb70980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 84.258953][ T5482] >ffff88807bb70a00: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc
[ 84.267031][ T5482] ^
[ 84.272415][ T5482] ffff88807bb70a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 84.280491][ T5482] ffff88807bb70b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 84.288672][ T5482] ==================================================================
[ 84.297007][ T5482] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 84.304299][ T5482] CPU: 0 PID: 5482 Comm: syz-executor.0 Not tainted 6.7.0-rc5-syzkaller-00200-g3bd7d7488169-dirty #0
[ 84.315192][ T5482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
[ 84.325261][ T5482] Call Trace:
[ 84.328557][ T5482]
[ 84.331585][ T5482] dump_stack_lvl+0x1e7/0x2d0
[ 84.336381][ T5482] ? nf_tcp_handle_invalid+0x650/0x650
[ 84.341862][ T5482] ? panic+0x850/0x850
[ 84.345945][ T5482] ? rcu_is_watching+0x15/0xb0
[ 84.350819][ T5482] ? lock_release+0xbf/0x9c0
[ 84.355430][ T5482] ? vscnprintf+0x5d/0x80
[ 84.359782][ T5482] panic+0x349/0x850
[ 84.363702][ T5482] ? check_panic_on_warn+0x21/0xa0
[ 84.368826][ T5482] ? __memcpy_flushcache+0x2b0/0x2b0
[ 84.374307][ T5482] ? do_raw_spin_unlock+0x13b/0x8b0
[ 84.379617][ T5482] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 84.385525][ T5482] ? _raw_spin_unlock+0x40/0x40
[ 84.390573][ T5482] ? print_report+0x4fb/0x540
[ 84.395269][ T5482] check_panic_on_warn+0x82/0xa0
[ 84.400395][ T5482] ? string+0x218/0x2b0
[ 84.405157][ T5482] end_report+0x6e/0x140
[ 84.409418][ T5482] kasan_report+0x153/0x170
[ 84.413939][ T5482] ? string+0x218/0x2b0
[ 84.418127][ T5482] string+0x218/0x2b0
[ 84.422625][ T5482] vsnprintf+0x1101/0x1da0
[ 84.427065][ T5482] ? __lock_acquire+0x1345/0x1fd0
[ 84.432115][ T5482] ? ptr_to_hashval+0x80/0x80
[ 84.436841][ T5482] vprintk_store+0x47f/0x1160
[ 84.441538][ T5482] ? lockdep_unlock+0x169/0x300
[ 84.446432][ T5482] ? printk_parse_prefix+0x3d0/0x3d0
[ 84.451738][ T5482] ? _find_first_zero_bit+0xd4/0x100
[ 84.457318][ T5482] ? validate_chain+0x15c6/0x5ab0
[ 84.462985][ T5482] ? reacquire_held_locks+0x690/0x690
[ 84.468902][ T5482] ? reacquire_held_locks+0x690/0x690
[ 84.474304][ T5482] vprintk_emit+0x119/0x720
[ 84.479000][ T5482] ? printk_sprint+0x480/0x480
[ 84.483781][ T5482] ? stack_trace_save+0x117/0x1c0
[ 84.488835][ T5482] ? stack_trace_snprint+0xf0/0xf0
[ 84.494153][ T5482] _printk+0xd5/0x120
[ 84.498153][ T5482] ? btrfs_dev_replace_by_ioctl+0xc7/0x2020
[ 84.504112][ T5482] ? panic+0x850/0x850
[ 84.508197][ T5482] ? __lock_acquire+0x1345/0x1fd0
[ 84.513241][ T5482] btrfs_dev_replace_by_ioctl+0x16e/0x2020
[ 84.519179][ T5482] ? btrfs_finish_block_group_to_copy+0x480/0x480
[ 84.525616][ T5482] ? btrfs_ioctl_dev_replace+0x2be/0x390
[ 84.531266][ T5482] ? do_raw_spin_lock+0x14e/0x370
[ 84.536309][ T5482] ? __lock_acquire+0x1fd0/0x1fd0
[ 84.541442][ T5482] ? do_raw_spin_unlock+0x13b/0x8b0
[ 84.546662][ T5482] btrfs_ioctl_dev_replace+0x2c9/0x390
[ 84.552228][ T5482] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 84.558749][ T5482] __se_sys_ioctl+0xf8/0x170
[ 84.563366][ T5482] do_syscall_64+0x45/0x110
[ 84.567894][ T5482] entry_SYSCALL_64_after_hwframe+0x63/0x6b
[ 84.573841][ T5482] RIP: 0033:0x7f9e6107cba9
[ 84.578278][ T5482] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
[ 84.597985][ T5482] RSP: 002b:00007f9e61de30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 84.606417][ T5482] RAX: ffffffffffffffda RBX: 00007f9e6119bf80 RCX: 00007f9e6107cba9
[ 84.614405][ T5482] RDX: 0000000020000540 RSI: 00000000ca289435 RDI: 0000000000000005
[ 84.622418][ T5482] RBP: 00007f9e610c847a R08: 0000000000000000 R09: 0000000000000000
[ 84.630404][ T5482] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 84.638391][ T5482] R13: 000000000000000b R14: 00007f9e6119bf80 R15: 00007fffc9000478
[ 84.646385][ T5482]
[ 84.649618][ T5482] Kernel Offset: disabled
[ 84.654117][ T5482] Rebooting in 86400 seconds..