memory leak in genl_register_family

Status: auto-obsoleted due to no activity on 2022/09/13 18:41
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+fc577f12f25f2ac3b211@syzkaller.appspotmail.com
First crash: 2598d, last: 2315d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
Reminder: 99 open syzbot bugs in net subsystem 14 (14) 2019/07/31 15:13
memory leak in genl_register_family 0 (1) 2019/06/25 11:07
▶ ▼ Last patch testing requests (9)
Created Duration User Patch Repo Result
2022/09/13 16:27 13m retest repro upstream OK log
2022/09/13 13:27 13m retest repro upstream OK log
2022/09/13 10:27 14m retest repro upstream OK log
2022/09/13 05:27 13m retest repro upstream OK log
2022/09/13 02:27 13m retest repro upstream OK log
2022/09/12 22:27 13m retest repro upstream OK log
2022/09/12 18:27 13m retest repro upstream OK log
2022/09/12 14:27 13m retest repro upstream OK log
2020/09/23 10:44 14m anant.thazhemadam@gmail.com upstream OK

Sample crash report:
BUG: memory leak
unreferenced object 0xffff888126606400 (size 128):
  comm "swapper/0", pid 1, jiffies 4294937904 (age 228.160s)
  hex dump (first 32 bytes):
    80 00 00 00 00 00 00 00 08 64 60 26 81 88 ff ff  .........d`&....
    08 64 60 26 81 88 ff ff 50 dd 21 81 ff ff ff ff  .d`&....P.!.....
  backtrace:
    [<00000000eabfdf58>] kmalloc_array include/linux/slab.h:597 [inline]
    [<00000000eabfdf58>] genl_register_family net/netlink/genetlink.c:355 [inline]
    [<00000000eabfdf58>] genl_register_family+0x5c8/0x7be net/netlink/genetlink.c:322
    [<0000000097194ea0>] gtp_init+0x39/0xb8 drivers/net/gtp.c:1377
    [<0000000029f465af>] do_one_initcall+0x57/0x2d0 init/main.c:1152
    [<00000000f72fd89c>] do_initcall_level init/main.c:1225 [inline]
    [<00000000f72fd89c>] do_initcalls init/main.c:1241 [inline]
    [<00000000f72fd89c>] do_basic_setup init/main.c:1261 [inline]
    [<00000000f72fd89c>] kernel_init_freeable+0x1e6/0x268 init/main.c:1445
    [<000000007a90abb0>] kernel_init+0xc/0x151 init/main.c:1352
    [<0000000026da7d10>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352

Crashes (8):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/04/03 06:26 upstream 7be97138e727 a34e2c33 .config console log report syz ci-upstream-gce-leak
2020/04/03 02:25 upstream 7be97138e727 a34e2c33 .config console log report syz ci-upstream-gce-leak
2020/03/08 12:33 upstream c20037652700 2e9971bb .config console log report syz ci-upstream-gce-leak
2020/03/08 09:47 upstream c20037652700 2e9971bb .config console log report syz ci-upstream-gce-leak
2020/03/08 05:40 upstream c20037652700 2e9971bb .config console log report syz ci-upstream-gce-leak
2019/11/29 17:19 upstream 81b6b96475ac d29b9e84 .config console log report syz ci-upstream-gce-leak
2019/09/21 22:20 upstream 227c3e9eb5cf d96e88f3 .config console log report syz ci-upstream-gce-leak
2019/06/25 06:55 upstream 4b972a01a7da 82c13b6b .config console log report syz ci-upstream-gce-leak
* Struck through repros no longer work on HEAD.