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| author | dchagin <dchagin@FreeBSD.org> | 2015-12-26 09:04:47 +0000 |
|---|---|---|
| committer | dchagin <dchagin@FreeBSD.org> | 2015-12-26 09:04:47 +0000 |
| commit | 4beab3b76259d4ee784108fd13fc7f47f4124a93 (patch) | |
| tree | 257f548677bf0c492d2bd0047cd4b0ecc63aac02 /sys/compat | |
| parent | 069b2b75f344cda0d1dbdb48d4f52e798f0b0127 (diff) | |
| download | FreeBSD-src-4beab3b76259d4ee784108fd13fc7f47f4124a93.zip FreeBSD-src-4beab3b76259d4ee784108fd13fc7f47f4124a93.tar.gz | |
Do not allow access to emuldata for non Linux processes.
Pointed out by: mjg@
Security: https://admbugs.freebsd.org/show_bug.cgi?id=679
Diffstat (limited to 'sys/compat')
| -rw-r--r-- | sys/compat/linux/linux_futex.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/compat/linux/linux_futex.c b/sys/compat/linux/linux_futex.c index 84fc996..e2aad79 100644 --- a/sys/compat/linux/linux_futex.c +++ b/sys/compat/linux/linux_futex.c @@ -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")); |
