syzbot
WARNING: BUG on pkg/sentry/platform/systrap/subprocess.go:LINE
Status:
moderation: reported syz repro on 2026/04/08 09:45
Reported-by: syzbot+3dd2dbc52cd1da5b9a40@syzkaller.appspotmail.com
First crash: 149d, last: 77d
▶
▼
Last patch testing requests (1)
| Created |
Duration |
User |
Patch |
Repo |
Result |
| 2026/04/30 20:10 |
|
tbsthitw@gmail.com
|
patch |
gvisor |
pending
|
Sample crash report:
W0612 09:40:49.561230 1 log.go:359] WARNING: BUG on pkg/sentry/platform/systrap/subprocess.go:857
systrap stub thread failure: sysmsg->state was invalid during sys-handler (failed on line 359; sysmsg.Msg{msg: 7ffc0249f000 state 2 err bad0001 line 359 debug 0 app stack 7ec4cb9aa9c8 context 7ffc024d6000 ThreadID 1})
:
goroutine 40466 [running]:
gvisor.dev/gvisor/pkg/log.Stacks(0x1)
pkg/log/log.go:319 +0x67
gvisor.dev/gvisor/pkg/log.TracebackAll({0x1dcf399727e0, 0x119}, {0x0, 0x0, 0x0})
pkg/log/log.go:358 +0x3e
gvisor.dev/gvisor/pkg/log.reportBug(0x3, {0x1dcf3a2e2000, 0xd9}, {0x0, 0x0, 0x0})
pkg/log/bug.go:56 +0x431
gvisor.dev/gvisor/pkg/log.reportBugErr(0x7fe358c90000?, {0x1523900?, 0x1dcf39af3068?})
pkg/log/bug.go:37 +0x45
gvisor.dev/gvisor/pkg/log.BugTraceback(...)
pkg/log/bug.go:126
gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*subprocess).switchToApp(0x1dcf3a13a780, 0x1dcf3a070a50, 0x1dcf3a416e10)
pkg/sentry/platform/systrap/subprocess.go:857 +0x2f5
gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*platformContext).Switch(0x1dcf3a070a50, {0x154d260, 0x1dcf3a476008}, {0x1545d60, 0x1dcf3a422008}, 0x1dcf3a416e10, 0x0?)
pkg/sentry/platform/systrap/systrap.go:179 +0xa6
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x1dcf3a20e990?, 0x1dcf3a476008)
pkg/sentry/kernel/task_run.go:241 +0x791
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x1dcf3a476008, 0x26b8)
pkg/sentry/kernel/task_run.go:89 +0x202
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 40330
pkg/sentry/kernel/task_start.go:479 +0xc5
* Struck through repros no longer work on HEAD.