SYZFAIL: too much cover

Status: auto-obsoleted due to no activity on 2026/06/17 01:22
First crash: 228d, last: 199d
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor SYZFAIL: too much cover (2) -1 1 57d 50d 26/26 fixed on 2026/08/17 18:31

Sample crash report:
SYZFAIL: too much cover
cov=0 (errno 11: Resource temporarily unavailable)
SYZFAIL: child failed
 (errno 0: Success)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: tun: ioctl(TUNSETIFF) failed
 (errno 25: Inappropriate ioctl for device)
loop exited with status 67
SYZFAIL: repeatedly failed to execute the program
proc=6 req=30291 state=3 status=67 (errno 32: Broken pipe)
D0211 15:03:47.629246       1 task_exit.go:225] [  10:  10] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0211 15:03:47.637628       1 task_signals.go:475] [ 25229: 25229] No task notified of signal 9
D0211 15:03:47.637809       1 task_signals.go:464] [   1:   1] Notified of signal 17
D0211 15:03:47.638041       1 task_signals.go:464] [ 24043: 24043] Notified of signal 9
D0211 15:03:47.638184       1 task_signals.go:475] [ 25235: 25235] No task notified of signal 9
D0211 15:03:47.638264       1 task_exit.go:225] [  10:  10] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0211 15:03:47.638326       1 task_exit.go:225] [  10:  10] Transitioning from exit state TaskExitZombie to TaskExitDead
D0211 15:03:47.638998       1 task_signals.go:200] [ 24043: 24043] Signal 9, PID: 24043, TID: 24043, fault addr: 0x0: terminating thread group
D0211 15:03:47.639149       1 task_exit.go:225] [ 24043: 24043] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0211 15:03:47.639200       1 task_signals.go:175] [   1:   1] Restarting syscall 202: interrupted by signal 17
D0211 15:03:47.639293       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0211 15:03:47.639767       1 task_signals.go:437] [ 24046(   1): 24046(   1)] Discarding ignored signal 13
D0211 15:03:47.639709       1 loader.go:1605] updated processes (removal): map[{ci-gvisor-ptrace-1-race-1 0}:0xc00003c0c0]
D0211 15:03:47.639904       1 controller.go:833] containerManager.Wait, cid: ci-gvisor-ptrace-1-race-1, pid: 10, waitStatus: 0x4300, err: <nil>
D0211 15:03:47.640176       1 urpc.go:592] urpc: successfully marshalled 40 bytes.
D0211 15:03:47.640278       1 urpc.go:372] urpc: RPC call for method containerManager.WaitPID succeeded.
D0211 15:03:47.640207       1 task_signals.go:437] [ 24046(   1): 24046(   1)] Discarding ignored signal 13
D0211 15:03:47.640360  368582 urpc.go:635] urpc: unmarshal success.
I0211 15:03:47.640565  368582 cli.go:242] Exiting with status: 17152
D0211 15:03:47.640541       1 urpc.go:433] urpc: unregistering client with FD 23
D0211 15:03:47.641993       1 task_signals.go:475] [ 24046(   1): 24046(   1)] No task notified of signal 9
D0211 15:03:47.642049       1 task_exit.go:225] [ 24043: 24043] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0211 15:03:47.642098       1 task_signals.go:464] [   1:   1] Notified of signal 17
D0211 15:03:47.642215       1 task_signals.go:175] [   1:   1] Restarting syscall 202: interrupted by signal 17
D0211 15:03:47.642274       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0211 15:03:47.642877       1 task_signals.go:437] [ 24046(   1): 24046(   1)] Discarding ignored signal 13
D0211 15:03:47.642992       1 task_signals.go:200] [ 24046(   1): 24046(   1)] Signal 9, PID: 24046, TID: 24046, fault addr: 0x0: terminating thread group
D0211 15:03:47.643078       1 task_exit.go:225] [ 24046(   1): 24046(   1)] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0211 15:03:47.646628       1 task_signals.go:200] [ 25235: 25235] Signal 9, PID: 25235, TID: 25235, fault addr: 0x0: terminating thread group
D0211 15:03:47.646746       1 task_exit.go:225] [ 25235: 25235] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0211 15:03:47.649151       1 task_exit.go:225] [ 25235: 25235] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0211 15:03:47.649256       1 task_signals.go:464] [   1:   1] Notified of signal 17
D0211 15:03:47.649614       1 task_signals.go:175] [   1:   1] Restarting syscall 202: interrupted by signal 17
D0211 15:03:47.649745       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0211 15:03:47.650298       1 task_exit.go:387] [ 24046(   1): 24046(   1)] Init process terminating, killing namespace
D0211 15:03:47.650418       1 task_exit.go:225] [ 24046(   1): 24046(   1)] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0211 15:03:47.650560       1 task_signals.go:470] [   1:   2] Notified of group signal 17
D0211 15:03:47.650761       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0211 15:03:47.651890       1 task_run.go:188] [   1:   2] Restarting syscall 202 with restart block: not interrupted by handled signal
D0211 15:03:47.654642       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.655093       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.659783       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: []}
D0211 15:03:47.660167       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.661936       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.662264       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.663577       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.663982       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.664976       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.665361       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.666415       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.666679       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.667522       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.667890       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.668716       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.669114       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.670019       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.670361       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.684805       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, proc]}
D0211 15:03:47.685219       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.685975       1 client.go:400] send [channel 0xc0004d8870] WalkReq{DirFD: 1, Path: [, dev]}
D0211 15:03:47.686408       1 client.go:400] recv [channel 0xc0004d8870] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13369430, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 2, Atime: 2026-02-11 14:28:15.973104228 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2026-02-11 14:28:21.87309378 +0000 UTC, Mtime: 2026-02-11 14:28:21.87309378 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0211 15:03:47.688005       1 task_signals.go:437] [ 25236(   1): 25236(   1)] Discarding ignored signal 13
D0211 15:03:47.688329       1 task_signals.go:437] [ 25236(   1): 25236(   1)] Discarding ignored signal 13
D0211 15:03:47.689027       1 task_exit.go:225] [ 25236(   1): 25236(   1)] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0211 15:03:47.694058       1 task_exit.go:387] [ 25236(   1): 25236(   1)] Init process terminating, killing namespace
D0211 15:03:47.694144       1 task_exit.go:225] [ 25236(   1): 25236(   1)] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0211 15:03:47.694246       1 task_signals.go:464] [   1:   1] Notified of signal 17
D0211 15:03:47.694459       1 task_signals.go:175] [   1:   1] Restarting syscall 202: interrupted by signal 17
D0211 15:03:47.694543       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0211 15:03:47.827932       1 task_signals.go:464] [   1:   4] Notified of signal 23
D0211 15:03:47.828217       1 task_signals.go:216] [   1:   4] Signal 23: delivering to handler
D0211 15:03:48.028224       1 urpc.go:422] urpc: registering client with FD 23
D0211 15:03:48.028588       1 urpc.go:635] urpc: unmarshal success.
D0211 15:03:48.028644       1 urpc.go:302] urpc: handling RPC call for method debug.Stacks
D0211 15:03:48.032411       1 urpc.go:592] urpc: successfully marshalled 56763 bytes.
D0211 15:03:48.032487       1 urpc.go:372] urpc: RPC call for method debug.Stacks succeeded.
D0211 15:03:48.040038       1 urpc.go:433] urpc: unregistering client with FD 23
D0211 15:03:48.040872       1 urpc.go:422] urpc: registering client with FD 23
D0211 15:03:48.041199       1 urpc.go:635] urpc: unmarshal success.
D0211 15:03:48.041277       1 urpc.go:302] urpc: handling RPC call for method containerManager.Processes
D0211 15:03:48.041393       1 controller.go:297] containerManager.Processes, cid: ci-gvisor-ptrace-1-race-1
D0211 15:03:48.044255       1 urpc.go:592] urpc: successfully marshalled 2252 bytes.
D0211 15:03:48.044339       1 urpc.go:372] urpc: RPC call for method containerManager.Processes succeeded.
D0211 15:03:48.045251       1 urpc.go:433] urpc: unregistering client with FD 23

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/02/11 15:03 gvisor fcc60e001175 75707236 .config console log report info ci-gvisor-ptrace-1-race SYZFAIL: too much cover
2026/01/13 21:50 gvisor 7a397e306a31 e14dbeb9 console log report info ci-gvisor-kvm SYZFAIL: too much cover
* Struck through repros no longer work on HEAD.