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CRED: Separate task security context from task_struct

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Separate the task security context from task_struct.  At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.

Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.

With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2008-11-14 10:39:16 +11:00 • committed by James Morris
parent 15a2460ed0
commit b6dff3ec5e
63 changed files with 830 additions and 675 deletions
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4
fs/exec.c
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@ -1738,7 +1738,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
*/
if (get_dumpable(mm) == 2) { /* Setuid core dump mode */
flag = O_EXCL; /* Stop rewrite attacks */
current->fsuid = 0; /* Dump root private */
current->cred->fsuid = 0; /* Dump root private */
}
retval = coredump_wait(exit_code, &core_state);
@ -1834,7 +1834,7 @@ fail_unlock:
if (helper_argv)
argv_free(helper_argv);
current->fsuid = fsuid;
current->cred->fsuid = fsuid;
coredump_finish(mm);
fail:
return retval;