syzbot


SYZFAIL: tun: can't open device (7)

Status: upstream: reported on 2025/10/07 22:59
Reported-by: syzbot+5b4a2a90d1e5ea8e82e0@syzkaller.appspotmail.com
First crash: 54d, last: 1h19m
Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd SYZFAIL: tun: can't open device (2) -1 1 1590d 1590d 0/3 auto-closed as invalid on 2021/10/22 18:00
openbsd SYZFAIL: tun: can't open device (6) -1 31 121d 162d 0/3 auto-obsoleted due to no activity on 2025/09/21 09:12
openbsd SYZFAIL: tun: can't open device (3) -1 86 1417d 1417d 0/3 closed as invalid on 2022/01/15 08:41
openbsd SYZFAIL: tun: can't open device (5) -1 82 268d 283d 0/3 auto-obsoleted due to no activity on 2025/04/27 11:29
openbsd SYZFAIL: tun: can't open device -1 syz 4 1733d 1733d 3/3 fixed on 2021/03/10 05:59
openbsd SYZFAIL: tun: can't open device (4) -1 8 406d 508d 0/3 auto-obsoleted due to no activity on 2025/01/18 18:59

Sample crash report:
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
ifconfig: socket: No buffer space available
SYZFAIL: tun: can't open device
device=/dev/tap5 (errno 16: Device busy)
SYZFAIL: repeatedly failed to execute the program
proc=5 req=6 state=1 status=67 (errno 4: Interrupted system call)

Crashes (88):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/01 15:00 openbsd 6cbdb9457802 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/12/01 13:33 openbsd 6bf0f93af4a8 01c07bfe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/28 21:32 openbsd 88dc91f4cc14 d1b870e1 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/28 10:17 openbsd 49d7e2aa733e e8331348 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/28 03:43 openbsd 49d7e2aa733e e8331348 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/28 01:39 openbsd 7de01a79e4ba e8331348 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/27 03:17 openbsd 6302f867eaf5 e8331348 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/25 15:17 openbsd db1d82999ce6 64219f15 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/25 01:01 openbsd 58395e5de74c 64219f15 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/24 20:38 openbsd 879ea5f6fdb7 bf6fe8fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/24 15:24 openbsd 879ea5f6fdb7 bf6fe8fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/24 07:06 openbsd 879ea5f6fdb7 4fb8ef37 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/23 09:57 openbsd d1bc7a39681f 4fb8ef37 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/23 04:07 openbsd d1bc7a39681f 4fb8ef37 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/22 09:35 openbsd 16f4e75c8e57 4fb8ef37 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/21 12:44 openbsd e35b8f0de8d7 52ed5c96 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/21 01:22 openbsd 664a2aa283c6 280ea308 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/19 20:50 openbsd 809b9478d116 82d7b894 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/19 06:48 openbsd 32bfe3a7a32f ef766cd7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/18 23:21 openbsd ae8b598acb72 ef766cd7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/18 11:10 openbsd ae8b598acb72 ef766cd7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/16 09:42 openbsd 9c41abc406e3 f7988ea4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/16 02:18 openbsd 42d4ce758e42 f7988ea4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/14 21:17 openbsd 56163c0cd41e f7988ea4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/14 11:50 openbsd 83ff66b05700 07e030de .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/13 08:17 openbsd b192115449a5 07e030de .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/12 21:36 openbsd 4bd49954ab16 07e030de .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/12 06:27 openbsd f90c65410264 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/12 02:58 openbsd f90c65410264 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/11 15:30 openbsd 05de582f27ae 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/11 06:08 openbsd d046e1d8fd3f 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/10 09:33 openbsd 129ed0dedc2e 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/08 16:05 openbsd f09b465a1938 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/08 01:34 openbsd cc3bb0869211 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/07 21:14 openbsd cc3bb0869211 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/06 14:11 openbsd 05dcfb71c047 a6c9c731 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/06 12:30 openbsd 05dcfb71c047 a6c9c731 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/06 09:10 openbsd 05dcfb71c047 a6c9c731 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/04 09:38 openbsd 512bb19460b6 686bf657 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/03 15:06 openbsd 0214ec5c7fc4 e6c64ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/03 03:00 openbsd dd6e4afad218 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/02 20:12 openbsd 6e779084bd79 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/01 15:55 openbsd 5847d84d4e96 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/01 02:50 openbsd c58a321e760c 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/11/01 02:27 openbsd c58a321e760c 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/31 23:30 openbsd c58a321e760c 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/31 04:13 openbsd f10db54d1e58 2c50b6a9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/30 01:45 openbsd 48d22ee59b28 fd2207e7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/29 23:23 openbsd 48d22ee59b28 fd2207e7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/14 08:24 openbsd 0ee618c489a8 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/14 02:11 openbsd 0ee618c489a8 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/14 01:40 openbsd 0ee618c489a8 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/13 14:13 openbsd 105f350ce01a b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/11 18:17 openbsd 0f168beaa75c ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/11 03:11 openbsd ba3be980ae71 ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/10 23:15 openbsd 2d7977329ed5 ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/10 22:50 openbsd 2d7977329ed5 ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/10 11:20 openbsd f02b280c025a ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/10 10:06 openbsd f02b280c025a ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/09 22:04 openbsd d147d1032c49 7e2882b3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/09 05:44 openbsd 42468faed836 7e2882b3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore SYZFAIL: tun: can't open device
2025/10/08 09:28 openbsd a66c1d641baa 7e2882b3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
2025/10/07 22:59 openbsd a66c1d641baa 7e2882b3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main SYZFAIL: tun: can't open device
* Struck through repros no longer work on HEAD.