ntfs: (device loop1): parse_options(): Unrecognized mount option '´K9…C§©. ================================================================== 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 ffff888097e890f8 by task syz-executor.3/9842 CPU: 1 PID: 9842 Comm: syz-executor.3 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: 0033:0x7f8b1dc62c2b RSP: 002b:00007ffd2caaced0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f8b1dc62c2b RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f8b1ddc4960 R08: 0000000000000000 R09: 00007f8b1ddca2d0 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000002af80 R13: 00007ffd2caacfd0 R14: 00007f8b1ddc3370 R15: 0000000000000032 Allocated by task 8000: 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] create_ipc_ns ipc/namespace.c:45 [inline] copy_ipcs+0x119/0x3f0 ipc/namespace.c:96 create_new_namespaces+0x1d4/0x720 kernel/nsproxy.c:87 unshare_nsproxy_namespaces+0xa1/0x1d0 kernel/nsproxy.c:206 SYSC_unshare kernel/fork.c:2413 [inline] SyS_unshare+0x308/0x7f0 kernel/fork.c:2363 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb Freed by task 7982: 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 __dev_kfree_skb_any+0x7a/0xa0 net/core/dev.c:2529 dev_consume_skb_any include/linux/netdevice.h:3286 [inline] free_old_xmit_skbs+0x184/0x2c0 drivers/net/virtio_net.c:1141 start_xmit+0x148/0x14f0 drivers/net/virtio_net.c:1303 __netdev_start_xmit include/linux/netdevice.h:4051 [inline] netdev_start_xmit include/linux/netdevice.h:4060 [inline] xmit_one net/core/dev.c:3005 [inline] dev_hard_start_xmit+0x188/0x890 net/core/dev.c:3021 sch_direct_xmit+0x251/0x500 net/sched/sch_generic.c:186 __dev_xmit_skb net/core/dev.c:3214 [inline] __dev_queue_xmit+0x1ab0/0x2480 net/core/dev.c:3489 neigh_hh_output include/net/neighbour.h:490 [inline] neigh_output include/net/neighbour.h:498 [inline] ip_finish_output2+0x9db/0x1340 net/ipv4/ip_output.c:230 ip_finish_output+0x37c/0xc50 net/ipv4/ip_output.c:318 NF_HOOK_COND include/linux/netfilter.h:239 [inline] ip_output+0x1cd/0x510 net/ipv4/ip_output.c:406 dst_output include/net/dst.h:470 [inline] ip_local_out+0x93/0x170 net/ipv4/ip_output.c:125 ip_queue_xmit+0x879/0x1b40 net/ipv4/ip_output.c:506 __tcp_transmit_skb+0x17da/0x2ca0 net/ipv4/tcp_output.c:1133 __tcp_send_ack.part.0+0x399/0x580 net/ipv4/tcp_output.c:3649 __tcp_send_ack net/ipv4/tcp_output.c:3655 [inline] tcp_send_ack+0x6f/0x90 net/ipv4/tcp_output.c:3655 tcp_cleanup_rbuf+0x3c5/0x4a0 net/ipv4/tcp.c:1592 tcp_recvmsg+0x665/0x1d50 net/ipv4/tcp.c:2011 inet_recvmsg+0xef/0x4d0 net/ipv4/af_inet.c:793 sock_recvmsg_nosec net/socket.c:819 [inline] sock_recvmsg net/socket.c:826 [inline] sock_recvmsg net/socket.c:822 [inline] sock_read_iter+0x2be/0x3f0 net/socket.c:903 call_read_iter include/linux/fs.h:1774 [inline] new_sync_read fs/read_write.c:401 [inline] __vfs_read+0x449/0x620 fs/read_write.c:413 vfs_read+0x139/0x340 fs/read_write.c:447 SYSC_read fs/read_write.c:574 [inline] SyS_read+0xf2/0x210 fs/read_write.c:567 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 ffff888097e88880 which belongs to the cache kmalloc-2048 of size 2048 The buggy address is located 120 bytes to the right of 2048-byte region [ffff888097e88880, ffff888097e89080) The buggy address belongs to the page: page:ffffea00025fa200 count:1 mapcount:0 mapping:ffff888097e88000 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff888097e88000 0000000000000000 0000000100000003 raw: ffffea000260e220 ffffea00025e5da0 ffff88813fe74c40 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888097e88f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888097e89000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888097e89080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888097e89100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888097e89180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== input: syz0 as /devices/virtual/input/input8