Title | Replies (including bot) | Last reply |
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KASAN: use-after-free Read in xfrm_policy_lookup_bytype | 0 (1) | 2018/12/20 12:10 |
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KASAN: use-after-free Read in xfrm_policy_lookup_bytype | 0 (1) | 2018/12/20 12:10 |
================================================================== BUG: KASAN: use-after-free in __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2019 [inline] BUG: KASAN: use-after-free in xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline] BUG: KASAN: use-after-free in xfrm_policy_lookup_bytype+0xd27/0xdb0 net/xfrm/xfrm_policy.c:2113 Read of size 4 at addr ffff88809804a9f4 by task syz-executor0/14841 CPU: 0 PID: 14841 Comm: syz-executor0 Not tainted 5.0.0-rc3+ #37 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+0x1db/0x2d0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 __asan_report_load4_noabort+0x14/0x20 mm/kasan/generic_report.c:134 __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2019 [inline] xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline] xfrm_policy_lookup_bytype+0xd27/0xdb0 net/xfrm/xfrm_policy.c:2113 xfrm_policy_lookup+0x7e/0x90 net/xfrm/xfrm_policy.c:2145 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline] xfrm_lookup_with_ifid+0x8cf/0x2a90 net/xfrm/xfrm_policy.c:3080 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3b/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xad/0xc0 net/ipv4/route.c:2582 ip_route_connect include/net/route.h:309 [inline] __ip4_datagram_connect+0x7ae/0x1330 net/ipv4/datagram.c:51 __ip6_datagram_connect+0xf13/0x1440 net/ipv6/datagram.c:191 ip6_datagram_connect+0x30/0x50 net/ipv6/datagram.c:273 inet_dgram_connect+0x150/0x2e0 net/ipv4/af_inet.c:571 __sys_connect+0x357/0x490 net/socket.c:1664 __do_sys_connect net/socket.c:1675 [inline] __se_sys_connect net/socket.c:1672 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:1672 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5d1cf83c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000006 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5d1cf846d4 R13: 00000000004be4f7 R14: 00000000004ceb30 R15: 00000000ffffffff Allocated by task 14099: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_kmalloc mm/kasan/common.c:496 [inline] __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:469 kasan_kmalloc+0x9/0x10 mm/kasan/common.c:504 __do_kmalloc_node mm/slab.c:3673 [inline] __kmalloc_node_track_caller+0x4e/0x70 mm/slab.c:3687 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:140 __alloc_skb+0x12d/0x730 net/core/skbuff.c:208 alloc_skb include/linux/skbuff.h:1011 [inline] alloc_skb_with_frags+0xef/0x720 net/core/skbuff.c:5283 sock_alloc_send_pskb+0x8c9/0xad0 net/core/sock.c:2091 sock_alloc_send_skb+0x32/0x40 net/core/sock.c:2108 __ip_append_data.isra.0+0x1b47/0x3350 net/ipv4/ip_output.c:998 ip_make_skb+0x2b8/0x350 net/ipv4/ip_output.c:1531 udp_sendmsg+0x28b5/0x3a40 net/ipv4/udp.c:1181 inet_sendmsg+0x1af/0x740 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:631 ___sys_sendmsg+0x409/0x910 net/socket.c:2116 __sys_sendmmsg+0x246/0x730 net/socket.c:2211 __do_sys_sendmmsg net/socket.c:2240 [inline] __se_sys_sendmmsg net/socket.c:2237 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2237 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 14099: save_stack+0x45/0xd0 mm/kasan/common.c:73 set_track mm/kasan/common.c:85 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/common.c:458 kasan_slab_free+0xe/0x10 mm/kasan/common.c:466 __cache_free mm/slab.c:3487 [inline] kfree+0xcf/0x230 mm/slab.c:3806 skb_free_head+0x93/0xb0 net/core/skbuff.c:553 skb_release_data+0x6ea/0x970 net/core/skbuff.c:573 skb_release_all+0x4d/0x60 net/core/skbuff.c:627 __kfree_skb net/core/skbuff.c:641 [inline] kfree_skb net/core/skbuff.c:659 [inline] kfree_skb+0x199/0x580 net/core/skbuff.c:653 __udp4_lib_mcast_deliver net/ipv4/udp.c:2177 [inline] __udp4_lib_rcv+0x2772/0x3180 net/ipv4/udp.c:2305 udp_rcv+0x22/0x30 net/ipv4/udp.c:2480 ip_protocol_deliver_rcu+0xb6/0xa20 net/ipv4/ip_input.c:208 ip_local_deliver_finish+0x23b/0x390 net/ipv4/ip_input.c:234 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_local_deliver+0x1f0/0x740 net/ipv4/ip_input.c:255 dst_input include/net/dst.h:450 [inline] ip_rcv_finish+0x1f4/0x2f0 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] NF_HOOK include/linux/netfilter.h:283 [inline] ip_rcv+0xed/0x620 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x160/0x210 net/core/dev.c:4973 __netif_receive_skb+0x2c/0x1c0 net/core/dev.c:5083 netif_receive_skb_internal+0x11e/0x690 net/core/dev.c:5186 napi_skb_finish net/core/dev.c:5665 [inline] napi_gro_receive+0x79a/0x9b0 net/core/dev.c:5698 gro_cell_poll+0x132/0x1f0 net/core/gro_cells.c:46 napi_poll net/core/dev.c:6346 [inline] net_rx_action+0x76d/0x1930 net/core/dev.c:6412 __do_softirq+0x30b/0xb11 kernel/softirq.c:292 The buggy address belongs to the object at ffff88809804a940 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 180 bytes inside of 1024-byte region [ffff88809804a940, ffff88809804ad40) The buggy address belongs to the page: page:ffffea0002601280 count:1 mapcount:0 mapping:ffff88812c3f0ac0 index:0xffff88809804b240 compound_mapcount: 0 flags: 0x1fffc0000010200(slab|head) raw: 01fffc0000010200 ffffea00017e4488 ffffea0002461c08 ffff88812c3f0ac0 raw: ffff88809804b240 ffff88809804a040 0000000100000005 0000000000000000 page dumped because: kasan: bad access detected kobject: 'loop5' (000000008862a7b9): fill_kobj_path: path = '/devices/virtual/block/loop5' Memory state around the buggy address: ffff88809804a880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff88809804a900: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb >ffff88809804a980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88809804aa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88809804aa80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/01/28 16:00 | net-old | abfd04f738c2 | 629c2a27 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/27 20:15 | net-old | abfd04f738c2 | c73f090a | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/25 14:25 | net-old | 6eea3527e68a | b5d78bce | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/21 10:00 | net-old | 6436408e814b | fd37a550 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/10 19:20 | net-old | 85704cb8dcfd | db9b6579 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/09 15:09 | net-old | d972f3dce8d1 | 45c0c1b1 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/09 02:55 | net-old | 977e4899c9b4 | 010ed08b | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/08 01:22 | net-old | 0aaa81377c5a | 69d69aa9 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/07 19:09 | net-old | 0aaa81377c5a | 69d69aa9 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/05 16:08 | net-old | ec90ad334986 | 53be0a37 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/01 14:20 | net-old | 756af9c64232 | 3d85f48c | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/01 13:32 | net-old | 756af9c64232 | 3d85f48c | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/01 09:51 | net-old | 756af9c64232 | 3d85f48c | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2018/12/29 18:34 | net-old | 7418e6520f22 | a40793d7 | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2018/12/28 19:32 | net-old | a3c9311f62b4 | fc6ae81a | .config | console log | report | ci-upstream-net-this-kasan-gce | |||||
2019/01/29 17:45 | net-next-old | 085c4c7dd2b6 | aa432daf | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/29 15:46 | net-next-old | 085c4c7dd2b6 | aa432daf | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/29 15:40 | net-next-old | 085c4c7dd2b6 | aa432daf | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/29 07:26 | net-next-old | 085c4c7dd2b6 | aa432daf | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/29 00:04 | net-next-old | 085c4c7dd2b6 | aa432daf | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/28 14:56 | net-next-old | 085c4c7dd2b6 | 629c2a27 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/28 06:06 | net-next-old | 085c4c7dd2b6 | c73f090a | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/26 06:19 | net-next-old | 30e5c2c6bf28 | ebf7a37c | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/24 20:46 | net-next-old | 254764e55652 | ce1ccf97 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/16 01:36 | net-next-old | 7939f8beecf1 | 79cb1a7c | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2019/01/07 22:03 | net-next-old | b71acb0e3721 | 69d69aa9 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/28 20:25 | net-next-old | b71acb0e3721 | fc6ae81a | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/28 08:39 | net-next-old | b71acb0e3721 | af317504 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/26 11:59 | net-next-old | 90cadbbf341d | 8a41a0ad | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/25 05:38 | net-next-old | ce28bb445388 | 8a41a0ad | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/21 22:41 | net-next-old | fa2323325e8b | 588075e6 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/21 07:44 | net-next-old | 962ad710f7d6 | 2b497001 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/12/19 18:06 | net-next-old | 33f18c96afdf | fe2dc057 | .config | console log | report | ci-upstream-net-kasan-gce |