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random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) ================================================================== BUG: KASAN: slab-out-of-bounds in nla_strlcpy+0x13d/0x150 lib/nlattr.c:314 Read of size 1 at addr ffff8801ac617f1d by task syz-executor739/4507 CPU: 0 PID: 4507 Comm: syz-executor739 Not tainted 4.17.0-rc7+ #73 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+0x1b9/0x294 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:430 nla_strlcpy+0x13d/0x150 lib/nlattr.c:314 nfnl_acct_new+0x574/0xc50 net/netfilter/nfnetlink_acct.c:118 nfnetlink_rcv_msg+0xdb5/0xff0 net/netfilter/nfnetlink.c:212 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448 nfnetlink_rcv+0x1fe/0x1ba0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 sock_write_iter+0x35a/0x5a0 net/socket.c:908 call_write_iter include/linux/fs.h:1784 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x64d/0x960 fs/read_write.c:487 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x43ff09 RSP: 002b:00007fff06d0bf78 EFLAGS: 00000213 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fff06d0bf90 RCX: 000000000043ff09 RDX: 000000000000007b RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00000000006cb018 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000213 R12: 00000000004017d0 R13: 0000000000401860 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 2857: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x760 mm/slab.c:3554 getname_flags+0xd0/0x5a0 fs/namei.c:140 getname+0x19/0x20 fs/namei.c:211 do_sys_open+0x39a/0x740 fs/open.c:1087 __do_sys_open fs/open.c:1111 [inline] __se_sys_open fs/open.c:1106 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1106 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 2857: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kmem_cache_free+0x86/0x2d0 mm/slab.c:3756 putname+0xf2/0x130 fs/namei.c:261 do_sys_open+0x554/0x740 fs/open.c:1102 __do_sys_open fs/open.c:1111 [inline] __se_sys_open fs/open.c:1106 [inline] __x64_sys_open+0x7e/0xc0 fs/open.c:1106 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801ac616680 which belongs to the cache names_cache of size 4096 The buggy address is located 2205 bytes to the right of 4096-byte region [ffff8801ac616680, ffff8801ac617680) The buggy address belongs to the page: page:ffffea0006b18580 count:1 mapcount:0 mapping:ffff8801ac616680 index:0x0 compound_mapcount: 0 flags: 0x2fffc0000008100(slab|head) raw: 02fffc0000008100 ffff8801ac616680 0000000000000000 0000000100000001 raw: ffffea000764c8a0 ffffea0006b18ca0 ffff8801da988dc0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801ac617e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801ac617e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8801ac617f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8801ac617f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801ac618000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2018/05/29 23:10 | upstream | 3d661e2a2d1c | e276de77 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2018/05/26 21:36 | upstream | bc2dbc5420e8 | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/05/26 21:12 | upstream | bc2dbc5420e8 | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/05/26 20:26 | upstream | bc2dbc5420e8 | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2018/05/21 19:07 | upstream | 6741c4bb389d | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/05/21 18:55 | upstream | 6741c4bb389d | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2018/05/21 18:24 | upstream | 6741c4bb389d | f48c20b8 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2018/05/29 23:16 | net-next-old | f03329627b46 | e276de77 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2018/05/26 20:03 | net-next-old | e52cde717093 | f48c20b8 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2018/06/01 02:28 | upstream | dd52cb879063 | 2f93b54f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/31 03:58 | upstream | d60d61f36b8f | 2f93b54f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/30 07:11 | upstream | 0044cdeb7313 | 2f93b54f | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/30 01:08 | upstream | 3d661e2a2d1c | 2f93b54f | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/29 15:56 | upstream | 3d661e2a2d1c | e276de77 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/29 14:35 | upstream | 3d661e2a2d1c | e276de77 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/29 03:10 | upstream | 786b71f5b754 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/27 21:22 | upstream | 861d9dd37526 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/25 08:04 | upstream | d883c6cf3b39 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/24 21:44 | upstream | d883c6cf3b39 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/24 16:24 | upstream | bee797529d7c | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/24 08:58 | upstream | bee797529d7c | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/21 18:52 | upstream | 6741c4bb389d | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/05/21 17:48 | upstream | 6741c4bb389d | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/05/28 16:30 | upstream | b04e217704b7 | f48c20b8 | .config | console log | report | ci-upstream-kasan-gce-386 | |||||
2018/06/03 13:39 | net-next-old | eaf47b17a77f | 2f93b54f | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/06/03 06:30 | net-next-old | 1ffdd8e1643f | 2f93b54f | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/06/02 11:54 | net-next-old | 21ad1173589e | 2f93b54f | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/30 12:14 | net-next-old | ae40832e53c3 | 2f93b54f | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/30 02:13 | net-next-old | ae40832e53c3 | 2f93b54f | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/28 19:35 | net-next-old | 5b79c2af667c | f48c20b8 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/28 10:28 | net-next-old | 5b79c2af667c | f48c20b8 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/26 23:35 | net-next-old | e52cde717093 | f48c20b8 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/26 02:56 | net-next-old | 9c5904904b88 | f48c20b8 | .config | console log | report | ci-upstream-net-kasan-gce | |||||
2018/05/25 03:20 | net-next-old | 13405468f49d | f48c20b8 | .config | console log | report | ci-upstream-net-kasan-gce |