tmpfs: Bad value '%x g' for mount option 'nr_inodes' ================================================================== 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 ffff888095bbe9b8 by task syz-executor.1/9959 CPU: 0 PID: 9959 Comm: syz-executor.1 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: 0033:0x7f0e61d83c2b RSP: 002b:00007ffeccfd48d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f0e61d83c2b RDX: 0000000000000000 RSI: 00007f0e61b48000 RDI: 0000000000000003 RBP: 00007f0e61ee5960 R08: 0000000000000000 R09: 00000000d4c4dd8c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000028068 R13: 00007ffeccfd49d0 R14: 00007f0e61ee3f60 R15: 0000000000000032 Allocated by task 7993: 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 __do_kmalloc mm/slab.c:3720 [inline] __kmalloc_track_caller+0x155/0x400 mm/slab.c:3735 kmemdup+0x23/0x50 mm/util.c:118 kmemdup include/linux/string.h:449 [inline] neigh_sysctl_register+0x88/0x680 net/core/neighbour.c:3206 devinet_sysctl_register+0x91/0x1f0 net/ipv4/devinet.c:2351 inetdev_init+0x202/0x410 net/ipv4/devinet.c:262 inetdev_event+0x8b4/0x10a0 net/ipv4/devinet.c:1462 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] register_netdevice+0xb98/0xe40 net/core/dev.c:7699 veth_newlink+0x3a6/0x890 drivers/net/veth.c:416 rtnl_newlink+0xfab/0x1860 net/core/rtnetlink.c:2728 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 Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff888095bbe140 which belongs to the cache kmalloc-2048 of size 2048 The buggy address is located 120 bytes to the right of 2048-byte region [ffff888095bbe140, ffff888095bbe940) The buggy address belongs to the page: page:ffffea000256ef80 count:1 mapcount:0 mapping:ffff888095bbe140 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff888095bbe140 0000000000000000 0000000100000003 raw: ffffea000256dda0 ffffea000255e8a0 ffff88813fe74c40 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888095bbe880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888095bbe900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888095bbe980: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ^ ffff888095bbea00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888095bbea80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================