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Do not allow access to emuldata for non Linux processes.

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Pointed out by:	mjg@
Security:	https://admbugs.freebsd.org/show_bug.cgi?id=679
This commit is contained in:
Dmitry Chagin 2015-12-26 09:04:47 +00:00
parent 9d8b002160
commit 6e5549717a
1 changed files with 2 additions and 0 deletions
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2
sys/compat/linux/linux_futex.c
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@ -1099,6 +1099,8 @@ linux_get_robust_list(struct thread *td, struct linux_get_robust_list_args *args
ESRCH);
return (ESRCH);
}
if (SV_PROC_ABI(td2->td_proc) != SV_ABI_LINUX)
return (EPERM);
em = em_find(td2);
KASSERT(em != NULL, ("get_robust_list: emuldata notfound.\n"));