QAT: Invalid ioctl QAT: Invalid ioctl ================================================================== BUG: KASAN: use-after-free in __list_add_valid+0xc6/0xd0 lib/list_debug.c:26 Read of size 8 at addr ffff8801d1740658 by task syz-executor3/30953 CPU: 0 PID: 30953 Comm: syz-executor3 Not tainted 4.16.0-rc6+ #275 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+0x194/0x24d lib/dump_stack.c:53 print_address_description+0x73/0x250 mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report+0x23c/0x360 mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 __list_add_valid+0xc6/0xd0 lib/list_debug.c:26 __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] cma_listen_on_all drivers/infiniband/core/cma.c:2309 [inline] rdma_listen+0x581/0x8e0 drivers/infiniband/core/cma.c:3333 ucma_listen+0x172/0x1f0 drivers/infiniband/core/ucma.c:1074 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1649 __vfs_write+0xef/0x970 fs/read_write.c:480 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7fa1c99 RSP: 002b:00000000f779d09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 0000000020000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 30102: save_stack+0x43/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:552 kmem_cache_alloc_trace+0x136/0x740 mm/slab.c:3607 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] sctp_transport_new+0xef/0x840 net/sctp/transport.c:111 sctp_assoc_add_peer+0x290/0x1190 net/sctp/associola.c:627 sctp_process_param net/sctp/sm_make_chunk.c:2546 [inline] sctp_process_init+0x1567/0x2440 net/sctp/sm_make_chunk.c:2362 sctp_cmd_process_init net/sctp/sm_sideeffect.c:682 [inline] sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1400 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1210 [inline] sctp_do_sm+0x40a6/0x6ed0 net/sctp/sm_sideeffect.c:1181 sctp_assoc_bh_rcv+0x283/0x4b0 net/sctp/associola.c:1065 sctp_inq_push+0x23b/0x300 net/sctp/inqueue.c:95 sctp_backlog_rcv+0x177/0xa90 net/sctp/input.c:350 sk_backlog_rcv include/net/sock.h:908 [inline] __release_sock+0x124/0x360 net/core/sock.c:2271 release_sock+0xa4/0x2a0 net/core/sock.c:2786 sctp_wait_for_connect+0x346/0x570 net/sctp/socket.c:8236 sctp_sendmsg+0x2b3d/0x35e0 net/sctp/socket.c:2043 inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 Freed by task 7: save_stack+0x43/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:520 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:527 __cache_free mm/slab.c:3485 [inline] kfree+0xd9/0x260 mm/slab.c:3800 sctp_transport_destroy_rcu+0x4a/0x60 net/sctp/transport.c:163 __rcu_reclaim kernel/rcu/rcu.h:172 [inline] rcu_do_batch kernel/rcu/tree.c:2674 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2933 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2900 [inline] rcu_process_callbacks+0xd6c/0x17f0 kernel/rcu/tree.c:2917 __do_softirq+0x2d7/0xb85 kernel/softirq.c:285 The buggy address belongs to the object at ffff8801d1740480 which belongs to the cache kmalloc-1024 of size 1024 The buggy address is located 472 bytes inside of 1024-byte region [ffff8801d1740480, ffff8801d1740880) The buggy address belongs to the page: page:ffffea000745d000 count:1 mapcount:0 mapping:ffff8801d1740000 index:0x0 compound_mapcount: 0 flags: 0x2fffc0000008100(slab|head) raw: 02fffc0000008100 ffff8801d1740000 0000000000000000 0000000100000007 raw: ffffea000735ffa0 ffffea0006af6fa0 ffff8801dac00ac0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801d1740500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801d1740580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8801d1740600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8801d1740680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8801d1740700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================