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SYZFAIL: netlink_send_ext: bad netlink ack type

Status: upstream: reported syz repro on 2023/06/11 04:56
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+993a4f1fdde3285672af@syzkaller.appspotmail.com
First crash: 327d, last: 45d
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2023/06/11 upstream (ToT) 022ce8862dff C [report] SYZFAIL: netlink_send_ext: bad netlink ack type
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 SYZFAIL: netlink_send_ext: bad netlink ack type origin:upstream syz error 1 327d 327d 0/3 upstream: reported syz repro on 2023/06/11 19:56
linux-4.14 SYZFAIL: netlink_send_ext: bad netlink ack type 1 1137d 1137d 0/1 auto-closed as invalid on 2021/07/21 03:33
linux-4.19 SYZFAIL: netlink_send_ext: bad netlink ack type syz error 20 785d 1165d 0/1 upstream: reported syz repro on 2021/02/23 18:14
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2024/03/19 05:06 1h50m bisect fix linux-6.1.y job log (0) log
2024/01/02 08:13 1h34m bisect fix linux-6.1.y job log (0) log
2023/12/01 23:13 1h42m bisect fix linux-6.1.y job log (0) log

Sample crash report:
1970/01/01 00:04:45 [FATAL] executor failed 11 times: executor 0: exit status 67
SYZFAIL: netlink_send_ext: bad netlink ack type
type=40 (errno 22: Invalid argument)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67

SYZFAIL: netlink_send_ext: bad netlink ack type
type=40 (errno 22: Invalid argument)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/06/11 04:55 linux-6.1.y 2f3918bc53fb 49519f06 .config console log report syz [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 SYZFAIL: netlink_send_ext: bad netlink ack type
* Struck through repros no longer work on HEAD.