diff options
Diffstat (limited to 'pkg/sentry/fs/proc/mounts.go')
| -rw-r--r-- | pkg/sentry/fs/proc/mounts.go | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/pkg/sentry/fs/proc/mounts.go b/pkg/sentry/fs/proc/mounts.go index b9988625e..108432f4e 100644 --- a/pkg/sentry/fs/proc/mounts.go +++ b/pkg/sentry/fs/proc/mounts.go @@ -28,9 +28,22 @@ import ( // forEachMountSource runs f for the process root mount and each mount that is a // descendant of the root. func forEachMountSource(t *kernel.Task, fn func(string, *fs.MountSource)) { + var fsctx *kernel.FSContext + t.WithMuLocked(func(t *kernel.Task) { + fsctx = t.FSContext() + }) + if fsctx == nil { + // The task has been destroyed. Nothing to show here. + return + } + // All mount points must be relative to the rootDir, and mounts outside // will be excluded. - rootDir := t.FSContext().RootDirectory() + rootDir := fsctx.RootDirectory() + if rootDir == nil { + // The task has been destroyed. Nothing to show here. + return + } defer rootDir.DecRef() if rootDir.Inode == nil { |