================================================================== BUG: KASAN: slab-out-of-bounds in __swab64p include/uapi/linux/swab.h:192 [inline] BUG: KASAN: slab-out-of-bounds in __be64_to_cpup include/uapi/linux/byteorder/little_endian.h:74 [inline] BUG: KASAN: slab-out-of-bounds in is_tx_ready include/net/tls.h:354 [inline] BUG: KASAN: slab-out-of-bounds in tls_write_space+0x29d/0x2d0 net/tls/tls_main.c:236 Read of size 8 at addr ffff8801d8a5fff0 by task ksoftirqd/1/18 CPU: 1 PID: 18 Comm: ksoftirqd/1 Not tainted 4.19.0-rc4+ #228 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 print_address_description.cold.8+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 __swab64p include/uapi/linux/swab.h:192 [inline] __be64_to_cpup include/uapi/linux/byteorder/little_endian.h:74 [inline] is_tx_ready include/net/tls.h:354 [inline] tls_write_space+0x29d/0x2d0 net/tls/tls_main.c:236 netlink: 20 bytes leftover after parsing attributes in process `syz-executor4'. tcp_new_space net/ipv4/tcp_input.c:5154 [inline] tcp_check_space+0x53f/0x920 net/ipv4/tcp_input.c:5165 tcp_data_snd_check net/ipv4/tcp_input.c:5175 [inline] tcp_rcv_established+0xde8/0x2120 net/ipv4/tcp_input.c:5656 tcp_v6_do_rcv+0x4b3/0x13c0 net/ipv6/tcp_ipv6.c:1326 tcp_v6_rcv+0x2f7a/0x38a0 net/ipv6/tcp_ipv6.c:1555 ip6_input_finish+0x3fc/0x1aa0 net/ipv6/ip6_input.c:384 NF_HOOK include/linux/netfilter.h:287 [inline] ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:427 dst_input include/net/dst.h:450 [inline] ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76 NF_HOOK include/linux/netfilter.h:287 [inline] ipv6_rcv+0x113/0x640 net/ipv6/ip6_input.c:272 __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4894 __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5004 process_backlog+0x217/0x760 net/core/dev.c:5808 napi_poll net/core/dev.c:6228 [inline] net_rx_action+0x7c5/0x1950 net/core/dev.c:6294 __do_softirq+0x30b/0xad8 kernel/softirq.c:292 run_ksoftirqd+0x94/0x100 kernel/softirq.c:653 smpboot_thread_fn+0x68b/0xa00 kernel/smpboot.c:164 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Allocated by task 12386: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kmem_cache_alloc_trace+0x152/0x750 mm/slab.c:3620 kmalloc include/linux/slab.h:513 [inline] tls_set_device_offload+0x119/0x10a0 net/tls/tls_device.c:677 do_tls_setsockopt_conf net/tls/tls_main.c:461 [inline] do_tls_setsockopt net/tls/tls_main.c:514 [inline] tls_setsockopt+0x32d/0x770 net/tls/tls_main.c:533 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3038 __sys_setsockopt+0x1ba/0x3c0 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt net/socket.c:1910 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1910 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 12386: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xcf/0x230 mm/slab.c:3813 tls_set_device_offload+0x23f/0x10a0 net/tls/tls_device.c:813 do_tls_setsockopt_conf net/tls/tls_main.c:461 [inline] do_tls_setsockopt net/tls/tls_main.c:514 [inline] tls_setsockopt+0x32d/0x770 net/tls/tls_main.c:533 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3038 __sys_setsockopt+0x1ba/0x3c0 net/socket.c:1902 __do_sys_setsockopt net/socket.c:1913 [inline] __se_sys_setsockopt net/socket.c:1910 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1910 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801d8a5fc80 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 368 bytes to the right of 512-byte region [ffff8801d8a5fc80, ffff8801d8a5fe80) The buggy address belongs to the page: page:ffffea00076297c0 count:1 mapcount:0 mapping:ffff8801da800940 index:0x0 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea0006f11648 ffffea0007607b08 ffff8801da800940 raw: 0000000000000000 ffff8801d8a5f000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected kobject: 'loop3' (00000000dabc7c4f): fill_kobj_path: path = '/devices/virtual/block/loop3' Memory state around the buggy address: ffff8801d8a5fe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801d8a5ff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801d8a5ff80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801d8a60000: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ffff8801d8a60080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================