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memory leak in veth_dev_init

Status: upstream: reported C repro on 2020/07/18 11:51
Labels: net (incorrect?)
Reported-by: syzbot+59ef240dd8f0ed7598a8@syzkaller.appspotmail.com
First crash: 1056d, last: 875d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[PATCH] veth: fix memory leak in veth_newlink() 6 (6) 2020/09/01 22:59
memory leak in veth_dev_init 0 (2) 2020/08/02 15:19
▶ ▼ Last patch testing requests (13)
Created Duration User Patch Repo Result
2023/04/18 11:40 11m retest repro upstream report log
2023/01/08 04:31 10m retest repro upstream report log
2022/10/03 16:30 14m retest repro upstream OK log
2022/10/03 15:30 13m retest repro upstream OK log
2022/10/03 13:30 15m retest repro upstream OK log
2022/10/03 02:30 13m retest repro upstream OK log
2022/10/03 01:30 14m retest repro upstream OK log
2022/10/03 00:30 13m retest repro upstream OK log
2022/10/02 23:30 14m retest repro upstream OK log
2022/10/02 21:30 14m retest repro upstream OK log
2020/10/16 09:44 15m anant.thazhemadam@gmail.com upstream OK
2020/08/30 03:34 15m rkovhaev@gmail.com patch upstream OK
2020/08/22 15:45 8m rkovhaev@gmail.com upstream report log

Sample crash report:
BUG: memory leak
unreferenced object 0xffff888122d87400 (size 1024):
  comm "syz-executor.0", pid 8505, jiffies 4294980087 (age 20.250s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<0000000064d06a78>] kmalloc_array include/linux/slab.h:592 [inline]
    [<0000000064d06a78>] kcalloc include/linux/slab.h:621 [inline]
    [<0000000064d06a78>] veth_alloc_queues drivers/net/veth.c:1029 [inline]
    [<0000000064d06a78>] veth_dev_init+0x88/0x150 drivers/net/veth.c:1056
    [<000000008ec9a7bb>] register_netdevice+0x17f/0x8d0 net/core/dev.c:9976
    [<000000004be6384a>] veth_newlink+0x2fc/0x500 drivers/net/veth.c:1390
    [<00000000c50ef185>] __rtnl_newlink+0xa57/0xdc0 net/core/rtnetlink.c:3443
    [<000000003be4d002>] rtnl_newlink+0x49/0x70 net/core/rtnetlink.c:3502
    [<00000000e1675b5e>] rtnetlink_rcv_msg+0x1fc/0x520 net/core/rtnetlink.c:5564
    [<00000000c1a885ce>] netlink_rcv_skb+0x87/0x1d0 net/netlink/af_netlink.c:2494
    [<00000000f6811cb5>] netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
    [<00000000f6811cb5>] netlink_unicast+0x392/0x4c0 net/netlink/af_netlink.c:1330
    [<000000008159bca1>] netlink_sendmsg+0x368/0x6a0 net/netlink/af_netlink.c:1919
    [<000000004bd252b8>] sock_sendmsg_nosec net/socket.c:652 [inline]
    [<000000004bd252b8>] sock_sendmsg+0x56/0x80 net/socket.c:672
    [<00000000ed9955f6>] __sys_sendto+0x15c/0x200 net/socket.c:1975
    [<000000009f0ac067>] __do_sys_sendto net/socket.c:1987 [inline]
    [<000000009f0ac067>] __se_sys_sendto net/socket.c:1983 [inline]
    [<000000009f0ac067>] __x64_sys_sendto+0x26/0x30 net/socket.c:1983
    [<00000000b1330c7d>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<000000005f7f3892>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

Crashes (174):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2021/01/06 23:06 upstream 9f1abbe97c08 c104d4a3 .config console log report syz ci-upstream-gce-leak
2020/12/25 05:27 upstream 3913d00ac51a c2c1d1dd .config console log report syz C ci-upstream-gce-leak
2020/10/15 14:29 upstream 3e4fb4346c78 63869021 .config console log report syz C ci-upstream-gce-leak
2020/08/02 15:19 upstream ac3a0c847296 63a73341 .config console log report syz C ci-upstream-gce-leak
2021/01/11 06:07 upstream 0653161f0fac 2c1f2513 .config console log report syz ci-upstream-gce-leak
2021/01/09 06:45 upstream 6279d812eab6 c104d4a3 .config console log report syz ci-upstream-gce-leak
2021/01/08 20:21 upstream f5e6c330254a c104d4a3 .config console log report syz ci-upstream-gce-leak
2021/01/08 03:42 upstream f5e6c330254a c104d4a3 .config console log report syz ci-upstream-gce-leak
2021/01/07 11:55 upstream 71c061d24438 c104d4a3 .config console log report syz ci-upstream-gce-leak
2021/01/07 04:40 upstream 9f1abbe97c08 c104d4a3 .config console log report syz ci-upstream-gce-leak
2021/01/05 04:56 upstream 36bbbd0e234d 2a28ff1f .config console log report syz ci-upstream-gce-leak
2021/01/05 00:07 upstream 36bbbd0e234d 2a28ff1f .config console log report syz ci-upstream-gce-leak
2021/01/04 05:30 upstream e71ba9452f0b 79264ae3 .config console log report syz ci-upstream-gce-leak
2021/01/03 14:02 upstream 3516bd729358 79264ae3 .config console log report syz ci-upstream-gce-leak
2021/01/03 11:52 upstream 3516bd729358 79264ae3 .config console log report syz ci-upstream-gce-leak
2020/12/31 18:18 upstream f6e1ea196492 79264ae3 .config console log report syz ci-upstream-gce-leak
2020/12/30 11:26 upstream 139711f033f6 0fa352f2 .config console log report syz ci-upstream-gce-leak
2020/12/29 20:43 upstream dea8dcf2a9fa 80910769 .config console log report syz ci-upstream-gce-leak
2020/12/29 00:11 upstream 5c8fe583cce5 8259d56c .config console log report syz ci-upstream-gce-leak
2020/12/28 19:43 upstream 5c8fe583cce5 8259d56c .config console log report syz ci-upstream-gce-leak
2020/12/28 18:19 upstream 5c8fe583cce5 8259d56c .config console log report syz ci-upstream-gce-leak
2020/12/27 11:59 upstream f838f8d2b694 821e0b09 .config console log report syz ci-upstream-gce-leak
2020/12/27 07:33 upstream f838f8d2b694 821e0b09 .config console log report syz ci-upstream-gce-leak
2020/12/26 23:07 upstream 40f78232f973 821e0b09 .config console log report syz ci-upstream-gce-leak
2020/12/25 01:59 upstream 3913d00ac51a c2c1d1dd .config console log report syz ci-upstream-gce-leak
2020/12/24 03:44 upstream 58cf05f597b0 c2c1d1dd .config console log report syz ci-upstream-gce-leak
2020/12/24 03:36 upstream 58cf05f597b0 c2c1d1dd .config console log report syz ci-upstream-gce-leak
2020/12/23 16:18 upstream 614cb5894306 c2c1d1dd .config console log report syz ci-upstream-gce-leak
2020/12/23 14:37 upstream 614cb5894306 c2c1d1dd .config console log report syz ci-upstream-gce-leak
2020/12/22 11:13 upstream 8653b778e454 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/21 22:48 upstream e37b12e4bb21 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/21 19:12 upstream e37b12e4bb21 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/20 10:44 upstream 467f8165a2b0 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/20 04:39 upstream 467f8165a2b0 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/19 12:14 upstream 3644e2d2dda7 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/18 13:51 upstream d64c6f96ba86 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/18 11:23 upstream d64c6f96ba86 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/17 07:50 upstream 5e60366d56c6 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/17 03:31 upstream 5e60366d56c6 04201c06 .config console log report syz ci-upstream-gce-leak
2020/12/16 08:16 upstream d635a69dd498 f213e07e .config console log report syz ci-upstream-gce-leak
2020/12/16 06:14 upstream d635a69dd498 f213e07e .config console log report syz ci-upstream-gce-leak
2020/12/14 07:25 upstream 6bff9bb8a292 b22a7ec3 .config console log report syz ci-upstream-gce-leak
2020/12/14 02:32 upstream 6bff9bb8a292 b22a7ec3 .config console log report syz ci-upstream-gce-leak
2020/12/14 01:28 upstream 6bff9bb8a292 b22a7ec3 .config console log report syz ci-upstream-gce-leak
2020/12/13 04:47 upstream 7b1b868e1d91 bca53db9 .config console log report syz ci-upstream-gce-leak
2020/12/12 20:53 upstream 7f376f1917d7 bca53db9 .config console log report syz ci-upstream-gce-leak
2020/07/15 07:18 upstream e9919e11e219 609fb517 .config console log report syz ci-upstream-gce-leak
2020/07/14 11:44 upstream 0dc589da873b ce4c95b3 .config console log report syz ci-upstream-gce-leak
* Struck through repros no longer work on HEAD.