ip6_tables: ip6tables: counters copy to user failed while replacing table audit: type=1800 audit(1642396754.442:23): pid=10345 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="bus" dev="sda1" ino=13894 res=0 ================================================================== x_tables: ip6_tables: icmp6 match: only valid for protocol 58 BUG: KASAN: slab-out-of-bounds in sg_mark_end include/linux/scatterlist.h:190 [inline] BUG: KASAN: slab-out-of-bounds in tls_push_record+0x10cc/0x1270 net/tls/tls_sw.c:255 Read of size 8 at addr ffff888056414538 by task syz-executor.5/10270 CPU: 0 PID: 10270 Comm: syz-executor.5 Not tainted 4.14.262-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430 sg_mark_end include/linux/scatterlist.h:190 [inline] tls_push_record+0x10cc/0x1270 net/tls/tls_sw.c:255 tls_handle_open_record net/tls/tls_main.c:158 [inline] tls_sk_proto_close+0x6f0/0x8b0 net/tls/tls_main.c:270 inet_release+0xdf/0x1b0 net/ipv4/af_inet.c:425 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:450 __sock_release+0xcd/0x2b0 net/socket.c:602 sock_close+0x15/0x20 net/socket.c:1139 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f27c3f09c2b RSP: 002b:00007ffe7a0d6280 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f27c3f09c2b RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f27c406b960 R08: 0000000000000000 R09: 00007f27c4072080 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028677 R13: 00007f27c4072180 R14: 00007f27c4069f60 R15: 0000000000000000 Allocated by task 10276: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] tls_set_sw_offload+0x88/0xcd0 net/tls/tls_sw.c:683 do_tls_setsockopt_tx net/tls/tls_main.c:443 [inline] do_tls_setsockopt net/tls/tls_main.c:468 [inline] tls_setsockopt+0x216/0x3f0 net/tls/tls_main.c:486 SYSC_setsockopt net/socket.c:1865 [inline] SyS_setsockopt+0x110/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb Freed by task 7994: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kfree+0xc9/0x250 mm/slab.c:3815 skb_free_head net/core/skbuff.c:563 [inline] skb_release_data+0x5f6/0x820 net/core/skbuff.c:583 skb_release_all net/core/skbuff.c:640 [inline] __kfree_skb net/core/skbuff.c:654 [inline] consume_skb+0xe0/0x380 net/core/skbuff.c:714 netlink_broadcast_filtered+0x2ae/0x9e0 net/netlink/af_netlink.c:1496 netlink_broadcast net/netlink/af_netlink.c:1518 [inline] nlmsg_multicast include/net/netlink.h:591 [inline] nlmsg_notify+0x129/0x1b0 net/netlink/af_netlink.c:2489 rtnl_notify net/core/rtnetlink.c:653 [inline] rtmsg_ifinfo_send net/core/rtnetlink.c:2931 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:2945 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:2934 [inline] rtmsg_ifinfo+0xd4/0x100 net/core/rtnetlink.c:2951 __dev_notify_flags+0x1d3/0x260 net/core/dev.c:6836 dev_change_flags+0xe6/0x130 net/core/dev.c:6873 do_setlink+0x83f/0x2bf0 net/core/rtnetlink.c:2092 rtnl_newlink+0x128a/0x1860 net/core/rtnetlink.c:2660 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4320 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2446 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 SYSC_sendto net/socket.c:1763 [inline] SyS_sendto+0x1c7/0x2c0 net/socket.c:1731 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb The buggy address belongs to the object at ffff888056414540 which belongs to the cache kmalloc-2048 of size 2048 The buggy address is located 8 bytes to the left of 2048-byte region [ffff888056414540, ffff888056414d40) The buggy address belongs to the page: page:ffffea0001590500 count:1 mapcount:0 mapping:ffff888056414540 index:0xffff888056415640 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff888056414540 ffff888056415640 0000000100000001 raw: ffffea0001591720 ffffea00015ad320 ffff88813fe74c40 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888056414400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888056414480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888056414500: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ^ ffff888056414580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888056414600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== audit: type=1800 audit(1642396754.442:24): pid=10328 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name="bus" dev="sda1" ino=13894 res=0