Hi Stephen Smalley, Reproduction path :- We do random file system operation ( e.g. - Saving, Open, Play, Delete ) of files and during this some time we abruptly power off the device. Thanks, Shivnandan ------- Original Message ------- Sender : Stephen Smalley<sds@xxxxxxxxxxxxx> Date : Aug 26, 2014 23:46 (GMT+09:00) Title : Re: [PATCH] Security: List corruption occured during file system automation test Do you have a reproducer test case to trigger the bug? On 08/21/2014 06:29 AM, Shivnandan Kumar wrote: > Dear Eric Paris, > > Sorry for the late reply. > Yes I have back trace and I am attaching it. > > First time the issue is reproduced then I have added some debug statement in the > file kernel/security/selinux/hooks.c to narrow down the problem and then we > reproduce the issue again. > I am attaching complete back trace as well as my additional debug patch for > your reference. > > Thanks, > > Shivnandan > > ------- *Original Message* ------- > > *Sender* : Eric Paris > > *Date* : Aug 14, 2014 05:27 (GMT+09:00) > > *Title* : Re: [PATCH] Security: List corruption occured during file system > automation test > > Do you have a backtrace? > > On Wed, Aug 13, 2014 at 8:30 AM, Al Viro wrote: > > On Wed, Aug 13, 2014 at 05:04:13PM +0530, shivnandan.k@xxxxxxxxxxx wrote: > >> From: Shivnandan Kumar > >> > >> List element was freed by inode_free_security and then it uses rcu > >> element to point inode_free_rcu, since it inside a union so it > >> shares memory, sb_finish_set_opts now also try to free list element, > > > > How in hell does it find that element? > > Thanks and Regards, > > Shivnandan Kumar > > > > _______________________________________________ > Selinux mailing list > Selinux@xxxxxxxxxxxxx > To unsubscribe, send email to Selinux-leave@xxxxxxxxxxxxx. > To get help, send an email containing "help" to Selinux-request@xxxxxxxxxxxxx. > Thanks and Regards, Shivnandan Kumar _______________________________________________ Selinux mailing list Selinux@xxxxxxxxxxxxx To unsubscribe, send email to Selinux-leave@xxxxxxxxxxxxx. To get help, send an email containing "help" to Selinux-request@xxxxxxxxxxxxx.
