BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]
BUG: KASAN: slab-out-of-bounds in do_replace net/ipv4/netfilter/ip_tables.c:1127 [inline]
BUG: KASAN: slab-out-of-bounds in do_ipt_set_ctl+0x1499/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627
Read of size 688 at addr ffff88802d02c860 by task syz-executor.3/6021

CPU: 1 PID: 6021 Comm: syz-executor.3 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105
 copy_from_sockptr_offset include/linux/sockptr.h:49 [inline]
 do_replace net/ipv4/netfilter/ip_tables.c:1127 [inline]
 do_ipt_set_ctl+0x1499/0x3dd0 net/ipv4/netfilter/ip_tables.c:1627
 nf_setsockopt+0x297/0x2c0 net/netfilter/nf_sockopt.c:101
 do_sock_setsockopt+0x3b1/0x720 net/socket.c:2311
 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340
 do_syscall_64+0xfd/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fa74967de69
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
RSP: 002b:00007fa74a4b70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fa7497abf80 RCX: 00007fa74967de69
RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003
RBP: 00007fa7496ca47a R08: 000000000000030c R09: 0000000000000000
R10: 0000000020000300 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa7497abf80 R15: 00007ffc8c6b6438
 </TASK>

Allocated by task 6021:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slub.c:3966 [inline]
 __kmalloc+0x233/0x4a0 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 kzalloc include/linux/slab.h:749 [inline]
 sockopt_alloc_buf kernel/bpf/cgroup.c:1776 [inline]
 __cgroup_bpf_run_filter_setsockopt+0x2e9/0x1040 kernel/bpf/cgroup.c:1817
 do_sock_setsockopt+0x6b4/0x720 net/socket.c:2293
 __sys_setsockopt+0x1ae/0x250 net/socket.c:2334
 __do_sys_setsockopt net/socket.c:2343 [inline]
 __se_sys_setsockopt net/socket.c:2340 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2340
 do_syscall_64+0xfd/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

The buggy address belongs to the object at ffff88802d02c800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 96 bytes inside of
 allocated 780-byte region [ffff88802d02c800, ffff88802d02cb0c)

The buggy address belongs to the physical page:
page:ffffea0000b40a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d028
head:ffffea0000b40a00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
ksm flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888014c41dc0 ffffea00007eb200 dead000000000003
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5089, tgid 5089 (syz-executor.0), ts 80429303161, free_ts 80421066274
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1533
 prep_new_page mm/page_alloc.c:1540 [inline]
 get_page_from_freelist+0x33ea/0x3580 mm/page_alloc.c:3311
 __alloc_pages+0x256/0x680 mm/page_alloc.c:4569
 __alloc_pages_node include/linux/gfp.h:238 [inline]
 alloc_pages_node include/linux/gfp.h:261 [inline]
 alloc_slab_page+0x5f/0x160 mm/slub.c:2175
 allocate_slab mm/slub.c:2338 [inline]
 new_slab+0x84/0x2f0 mm/slub.c:2391
 ___slab_alloc+0xc73/0x1260 mm/slub.c:3525
 __slab_alloc mm/slub.c:3610 [inline]
 __slab_alloc_node mm/slub.c:3663 [inline]
 slab_alloc_node mm/slub.c:3835 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc_node+0x2db/0x4e0 mm/slub.c:3973
 kmalloc_node include/linux/slab.h:648 [inline]
 kzalloc_node include/linux/slab.h:760 [inline]
 qdisc_alloc+0x95/0x950 net/sched/sch_generic.c:941
 qdisc_create_dflt+0x62/0x490 net/sched/sch_generic.c:999
 attach_one_default_qdisc net/sched/sch_generic.c:1164 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2500 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1182 [inline]
 dev_activate+0x3c0/0x1240 net/sched/sch_generic.c:1241
 __dev_open+0x352/0x450 net/core/dev.c:1439
 __dev_change_flags+0x1e2/0x6f0 net/core/dev.c:8683
 dev_change_flags+0x8b/0x1a0 net/core/dev.c:8755
 do_setlink+0xccd/0x41f0 net/core/rtnetlink.c:2884
 __rtnl_newlink net/core/rtnetlink.c:3680 [inline]
 rtnl_newlink+0x180b/0x20a0 net/core/rtnetlink.c:3727
 rtnetlink_rcv_msg+0x89d/0x10d0 net/core/rtnetlink.c:6595
page last free pid 8 tgid 8 stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1140 [inline]
 free_unref_page_prepare+0x968/0xa90 mm/page_alloc.c:2346
 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2486
 discard_slab mm/slub.c:2437 [inline]
 __put_partials+0xeb/0x130 mm/slub.c:2906
 put_cpu_partial+0x17c/0x250 mm/slub.c:2981
 __slab_free+0x2ea/0x3d0 mm/slub.c:4151
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3798 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 kmem_cache_alloc_node+0x194/0x380 mm/slub.c:3888
 __alloc_skb+0x1c3/0x440 net/core/skbuff.c:658
 alloc_skb include/linux/skbuff.h:1318 [inline]
 alloc_skb_with_frags+0xc3/0x770 net/core/skbuff.c:6504
 sock_alloc_send_pskb+0x91a/0xa60 net/core/sock.c:2795
 sock_alloc_send_skb include/net/sock.h:1835 [inline]
 mld_newpack+0x1c3/0xa90 net/ipv6/mcast.c:1746
 add_grhead net/ipv6/mcast.c:1849 [inline]
 add_grec+0x1492/0x19a0 net/ipv6/mcast.c:1987
 mld_send_cr net/ipv6/mcast.c:2113 [inline]
 mld_ifc_work+0x68e/0xd90 net/ipv6/mcast.c:2650
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa02/0x1770 kernel/workqueue.c:3335

Memory state around the buggy address:
 ffff88802d02ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88802d02ca80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88802d02cb00: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff88802d02cb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802d02cc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================