Messages in this thread | | | Date | Sat, 6 Mar 2010 18:32:54 +0000 | From | Al Viro <> | Subject | Re: "Switch !O_CREAT case to use of do_last()" causes segfault in glibc |
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On Sat, Mar 06, 2010 at 10:20:41AM -0800, walt wrote: > On 03/06/2010 10:03 AM, Al Viro wrote: > > >_Really_ interesting; it doesn't look like an oops - smells like an attempt > >to do opendir() that fails for some reason, goes unnoticed and resulting > >FILE * (i.e. NULL) is fed to readdir()? > > > >What does it attempt to open? > > Ah, this may help: > > open("/usr/share/zoneinfo/", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 47 > open("/usr/share/zoneinfo/MST7MDT", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 48
Now that is interesting. Looks like it has managed to lose O_DIRECTORY check in the open without trailing slash and (properly) barfed with / added.
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