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================================================================== BUG: KMSAN: uninit-value in nh_valid_dump_req net/ipv4/nexthop.c:1678 [inline] BUG: KMSAN: uninit-value in rtm_dump_nexthop+0x973/0x1670 net/ipv4/nexthop.c:1698 CPU: 1 PID: 11841 Comm: syz-executor189 Not tainted 5.3.0-rc3+ #17 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+0x191/0x1f0 lib/dump_stack.c:113 kmsan_report+0x162/0x2d0 mm/kmsan/kmsan_report.c:109 __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:294 nh_valid_dump_req net/ipv4/nexthop.c:1678 [inline] rtm_dump_nexthop+0x973/0x1670 net/ipv4/nexthop.c:1698 netlink_dump+0xab5/0x1b00 net/netlink/af_netlink.c:2244 __netlink_dump_start+0xa3a/0xb30 net/netlink/af_netlink.c:2352 netlink_dump_start include/linux/netlink.h:233 [inline] rtnetlink_rcv_msg+0x14e0/0x1580 net/core/rtnetlink.c:5186 netlink_rcv_skb+0x431/0x620 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x50/0x60 net/core/rtnetlink.c:5241 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0xf6c/0x1050 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x110f/0x1330 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x14ff/0x1590 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg+0x305/0x460 net/socket.c:2363 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2363 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x63/0xe7 RIP: 0033:0x4401b9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe5d72b9b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401b9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a40 R13: 0000000000401ad0 R14: 0000000000000000 R15: 0000000000000000 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:187 [inline] kmsan_internal_poison_shadow+0x53/0xa0 mm/kmsan/kmsan.c:146 kmsan_slab_alloc+0xaa/0x120 mm/kmsan/kmsan_hooks.c:175 slab_alloc_node mm/slub.c:2790 [inline] __kmalloc_node_track_caller+0xb55/0x1320 mm/slub.c:4388 __kmalloc_reserve net/core/skbuff.c:141 [inline] __alloc_skb+0x306/0xa10 net/core/skbuff.c:209 alloc_skb include/linux/skbuff.h:1056 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1174 [inline] netlink_sendmsg+0x783/0x1330 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg net/socket.c:657 [inline] ___sys_sendmsg+0x14ff/0x1590 net/socket.c:2311 __sys_sendmsg net/socket.c:2356 [inline] __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg+0x305/0x460 net/socket.c:2363 __x64_sys_sendmsg+0x4a/0x70 net/socket.c:2363 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x63/0xe7 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/08/11 00:49 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | acb51638 | .config | console log | report | syz | C | ci-upstream-kmsan-gce | |||
2019/08/27 11:47 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | d21c5d9d | .config | console log | report | ci-upstream-kmsan-gce | |||||
2019/08/13 10:09 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | 8620c2c2 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2019/08/13 10:07 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | 8620c2c2 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2019/08/10 20:45 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | acb51638 | .config | console log | report | ci-upstream-kmsan-gce | |||||
2019/08/10 16:41 | https://github.com/google/kmsan.git master | 61ccdad1fcdf | acb51638 | .config | console log | report | ci-upstream-kmsan-gce |