cvs commit: src/sys/fs/pseudofs pseudofs_vnops.c

[Robert Watson]

rwatson     2004-08-13 20:27:56 UTC

  FreeBSD src repository

  Modified files:
    sys/fs/pseudofs      pseudofs_vnops.c 
  Log:
  Commit a work-around for a more general bug involving process state:
  check whether p_ucred is NULL or not in pfs_getattr() before
  dereferencing the credential, and return ENOENT if there wasn't one.
  
  This is a symptom of a larger problem, wherein pfind() can return
  references to incompletely initialized processes, and we instead ought
  to not return them, or check the process state before acting on the
  process.
  
  Reported by:    kris
  Discussed with: tjr, others
  
  Revision  Changes    Path
  1.45      +11 -0     src/sys/fs/pseudofs/pseudofs_vnops.c