SYZFAIL: netlink_send_ext: netlink read failed

Status: premoderation: reported syz repro on 2021/12/31 10:34
Reported-by: syzbot+dbbec916d692528a3663@syzkaller.appspotmail.com
First crash: 1665d, last: 74d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 SYZFAIL: netlink_send_ext: netlink read failed -1 syz error 50 1363d 1978d 0/1 upstream: reported syz repro on 2021/02/21 20:23
linux-4.19 SYZFAIL: netlink_send_ext: netlink read failed -1 syz error 118 1674d 1977d 0/1 upstream: reported syz repro on 2021/02/22 10:53
android-54 SYZFAIL: netlink_send_ext: netlink read failed -1 syz 59 455d 1978d 0/2 upstream: reported syz repro on 2021/02/21 20:40
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/07/21 13:45 19m retest repro android13-5.10-lts log
2026/07/16 05:14 15m retest repro android13-5.10-lts log
2026/05/10 13:59 11m retest repro android13-5.10-lts report log
2026/04/15 05:42 6m retest repro android13-5.10-lts report log
2026/02/28 12:28 10m retest repro android13-5.10-lts report log
2026/02/03 23:40 5m retest repro android13-5.10-lts error
2025/12/20 12:00 10m retest repro android13-5.10-lts report log
2025/11/25 22:51 6m retest repro android13-5.10-lts report log
2025/10/09 09:56 15m retest repro android13-5.10-lts report log
2025/09/16 10:47 12m retest repro android13-5.10-lts report log

Sample crash report:
2022/02/25 12:20:11 executor failed 11 times: executor 0: exit status 67
SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67

SYZFAIL: netlink_send_ext: netlink read failed
 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/02/25 12:23 android12-5.10-lts cbfab5c59cf6 7c337266 .config console log report syz ci2-android-5-10 SYZFAIL: netlink_send_ext: netlink read failed
2021/12/31 10:33 android12-5.10-lts 9b28b48fb343 36bd2e48 .config console log report syz ci2-android-5-10 SYZFAIL: netlink_send_ext: netlink read failed
2022/02/06 00:12 android12-5.10-lts 34fd8cb7e75c a7dab638 .config console log report syz ci2-android-5-10 SYZFAIL: netlink_send_ext: netlink read failed
* Struck through repros no longer work on HEAD.