SYZFAIL: coverage filter is full

Status: moderation: reported on 2026/08/04 00:21
Reported-by: syzbot+ceb0b99f4a26bb7eec16@syzkaller.appspotmail.com
First crash: 32d, last: 31d

Sample crash report:
SYZFAIL: coverage filter is full
pc=0xffffffff745ffefd regions=[0xffffffffffffffff 0xffffffffbfffffff 0xfffffffe7fffffff 0xfffffffebfffffff] alloc=126 (errno 9: Bad file descriptor)
D0728 10:11:27.167695       1 task_exit.go:226] [  31:  31] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0728 10:11:27.168742       1 task_signals.go:475] [  33:  33] No task notified of signal 9
D0728 10:11:27.168773       1 task_exit.go:226] [  31:  31] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0728 10:11:27.168789       1 task_exit.go:226] [  31:  31] Transitioning from exit state TaskExitZombie to TaskExitDead
D0728 10:11:27.168870       1 loader.go:1700] updated processes (removal): map[{ci-gvisor-systrap-1-cover-1 0}:0x36ecb9fec480]
D0728 10:11:27.168908       1 controller.go:932] containerManager.Wait, cid: ci-gvisor-systrap-1-cover-1, pid: 31, waitStatus: 0x4300, err: <nil>
D0728 10:11:27.168907       1 task_signals.go:200] [  33:  33] Signal 9, PID: 33, TID: 33, fault addr: 0x0: terminating thread group
D0728 10:11:27.169046       1 task_exit.go:226] [  33:  33] Transitioning from exit state TaskExitNone to TaskExitInitiated
D0728 10:11:27.169000       1 urpc.go:592] urpc: successfully marshalled 40 bytes.
D0728 10:11:27.169116  916075 urpc.go:635] urpc: unmarshal success.
D0728 10:11:27.169122       1 urpc.go:372] urpc: RPC call for method containerManager.WaitPID succeeded.
D0728 10:11:27.169156       1 urpc.go:433] urpc: unregistering client with FD 27
I0728 10:11:27.169183  916075 cli.go:316] Exiting with status: 17152
D0728 10:11:27.170367       1 task_exit.go:226] [  33:  33] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0728 10:11:27.170399       1 task_signals.go:464] [   1:   1] Notified of signal 17
D0728 10:11:27.170492       1 task_signals.go:175] [   1:   1] Restarting syscall 202: interrupted by signal 17
D0728 10:11:27.170516       1 task_signals.go:216] [   1:   1] Signal 17: delivering to handler
D0728 10:11:27.188086       1 urpc.go:422] urpc: registering client with FD 27
D0728 10:11:27.188275       1 urpc.go:635] urpc: unmarshal success.
D0728 10:11:27.188325       1 urpc.go:302] urpc: handling RPC call for method debug.Stacks
D0728 10:11:27.197708       1 urpc.go:592] urpc: successfully marshalled 282091 bytes.
D0728 10:11:27.197743       1 urpc.go:372] urpc: RPC call for method debug.Stacks succeeded.
D0728 10:11:27.200506       1 urpc.go:433] urpc: unregistering client with FD 27
D0728 10:11:27.204152       1 urpc.go:422] urpc: registering client with FD 27
D0728 10:11:27.204465       1 urpc.go:635] urpc: unmarshal success.
D0728 10:11:27.204523       1 urpc.go:302] urpc: handling RPC call for method containerManager.Processes
D0728 10:11:27.204564       1 controller.go:318] containerManager.Processes, cid: ci-gvisor-systrap-1-cover-1
D0728 10:11:27.204804       1 urpc.go:592] urpc: successfully marshalled 345 bytes.
D0728 10:11:27.204829       1 urpc.go:372] urpc: RPC call for method containerManager.Processes succeeded.
D0728 10:11:27.205183       1 urpc.go:433] urpc: unregistering client with FD 27
I0728 10:11:27.438220       1 calibrated_clock.go:74] CalibratedClock(Monotonic): ready
I0728 10:11:27.438329       1 calibrated_clock.go:74] CalibratedClock(Realtime): ready
D0728 10:11:29.439177       1 sampler.go:191] Time: Adjusting syscall overhead down to 875
D0728 10:11:30.439385       1 sampler.go:191] Time: Adjusting syscall overhead down to 875
D0728 10:11:31.439509       1 sampler.go:191] Time: Adjusting syscall overhead down to 766
D0728 10:11:32.440402       1 sampler.go:191] Time: Adjusting syscall overhead down to 671
D0728 10:11:35.442251       1 sampler.go:191] Time: Adjusting syscall overhead down to 766
D0728 10:11:36.442647       1 sampler.go:191] Time: Adjusting syscall overhead down to 671

Crashes (3758):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/07/28 10:11 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 10:08 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 10:04 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 10:01 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:57 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:54 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:50 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:47 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:43 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:40 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:36 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:33 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:29 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:26 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:23 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:19 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:16 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:12 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:09 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:06 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 09:02 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:59 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:55 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:52 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:48 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:45 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:41 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:38 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:34 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:31 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:27 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:24 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:20 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:17 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:13 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:10 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:06 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 08:03 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 07:59 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 07:56 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 07:53 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 07:49 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
2026/07/28 00:07 gvisor ca42882317b2 45ae1df4 .config console log report info ci-gvisor-systrap-1-cover SYZFAIL: coverage filter is full
* Struck through repros no longer work on HEAD.