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SYZFAIL: netlink_send_ext: short netlink write

Status: upstream: reported syz repro on 2021/02/21 20:56
Reported-by: syzbot+88c11be2275a32b8a43e@syzkaller.appspotmail.com
First crash: 1369d, last: 965d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 SYZFAIL: netlink_send_ext: short netlink write syz error 29 1162d 1368d 0/1 upstream: reported syz repro on 2021/02/22 17:18
android-6-1 SYZFAIL: netlink_send_ext: short netlink write 1 7d21h 7d21h 0/2 premoderation: reported on 2024/11/13 23:37
android-5-10 SYZFAIL: netlink_send_ext: short netlink write 4 41d 130d 0/2 premoderation: reported on 2024/07/14 09:22
android-54 SYZFAIL: netlink_send_ext: short netlink write syz 12 10d 1368d 0/2 upstream: reported syz repro on 2021/02/22 10:25
android-5-15 SYZFAIL: netlink_send_ext: short netlink write 12 2d21h 128d 0/2 premoderation: reported on 2024/07/16 14:39
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2023/02/23 13:32 9m retest repro linux-4.14.y report log
2023/02/23 12:32 11m retest repro linux-4.14.y report log
2023/02/23 11:32 14m retest repro linux-4.14.y report log
2023/02/23 02:32 11m retest repro linux-4.14.y report log
2023/02/23 01:32 10m retest repro linux-4.14.y report log
2023/02/23 00:32 13m retest repro linux-4.14.y report log
2023/02/22 23:32 14m retest repro linux-4.14.y report log
2023/02/22 22:32 10m retest repro linux-4.14.y report log
2023/02/22 21:32 9m retest repro linux-4.14.y report log
2023/02/22 20:32 12m retest repro linux-4.14.y report log
▶ ▼ Fix bisection attempts (14)
Created Duration User Patch Repo Result
2022/05/01 18:02 17m bisect fix linux-4.14.y error job log
2022/04/01 17:23 30m bisect fix linux-4.14.y OK (0) job log log
2022/03/01 00:49 21m bisect fix linux-4.14.y OK (0) job log log
2022/01/30 00:19 29m bisect fix linux-4.14.y OK (0) job log log
2021/12/30 23:51 28m bisect fix linux-4.14.y OK (0) job log log
2021/11/30 21:51 22m bisect fix linux-4.14.y OK (0) job log log
2021/10/31 21:25 25m bisect fix linux-4.14.y OK (0) job log log
2021/10/01 03:39 27m bisect fix linux-4.14.y OK (0) job log log
2021/09/01 02:35 30m bisect fix linux-4.14.y OK (0) job log log
2021/08/02 01:49 24m bisect fix linux-4.14.y OK (0) job log log
2021/07/03 01:22 23m bisect fix linux-4.14.y OK (0) job log log
2021/06/03 00:57 24m bisect fix linux-4.14.y OK (0) job log log
2021/05/04 00:27 23m bisect fix linux-4.14.y OK (0) job log log
2021/04/04 00:00 23m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
2021/03/04 23:56:45 executed programs: 607
2021/03/04 23:56:50 executed programs: 1005
2021/03/04 23:56:53 result: hanged=false err=executor 0: exit status 67
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
wrote=-1, want=28 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67


SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
SYZFAIL: netlink_send_ext: short netlink write
wrote=-1, want=28 (errno 9: Bad file descriptor)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
2021/03/04 23:56:56 executed programs: 1242

Crashes (40):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/03/04 23:59 linux-4.14.y 397a88b2cc86 f89ed068 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/03 09:07 linux-4.14.y 3242aa3a635c e5b64d68 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/03 07:46 linux-4.14.y 3242aa3a635c e5b64d68 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/03 05:46 linux-4.14.y 3242aa3a635c e5b64d68 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/02 22:57 linux-4.14.y 3242aa3a635c e5b64d68 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/02 12:56 linux-4.14.y 3242aa3a635c 92ead296 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/02 02:36 linux-4.14.y 3242aa3a635c 183afb6c .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/01 09:04 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/03/01 00:02 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/28 22:49 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/27 19:42 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/27 17:25 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/27 05:13 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/27 02:06 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/27 00:58 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/26 23:32 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/26 20:34 linux-4.14.y 3242aa3a635c 4c37c133 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/25 04:01 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/24 17:46 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/24 16:08 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/24 15:15 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/23 22:44 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/23 21:19 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/23 17:09 linux-4.14.y 3242aa3a635c fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/23 07:36 linux-4.14.y 29c52025152b fcc6d71b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/23 00:38 linux-4.14.y 29c52025152b c26fb06b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 22:52 linux-4.14.y 29c52025152b c26fb06b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 21:22 linux-4.14.y 29c52025152b c26fb06b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 16:49 linux-4.14.y 29c52025152b c26fb06b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 16:26 linux-4.14.y 29c52025152b c26fb06b .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 11:44 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 11:02 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 08:57 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/22 07:08 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 23:55 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 22:51 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 22:28 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 22:19 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 22:07 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
2021/02/21 20:55 linux-4.14.y 29c52025152b a659b3f1 .config console log report syz ci2-linux-4-14 SYZFAIL: netlink_send_ext: short netlink write
* Struck through repros no longer work on HEAD.