https://github.com/torvalds/linux
Revision f12d5bfceb7e1f9051563381ec047f7f13956c3c authored by Linus Torvalds on 12 December 2013, 17:38:42 UTC, committed by Linus Torvalds on 12 December 2013, 17:38:42 UTC
The hugepage code had the exact same bug that regular pages had in
commit 7485d0d3758e ("futexes: Remove rw parameter from
get_futex_key()").

The regular page case was fixed by commit 9ea71503a8ed ("futex: Fix
regression with read only mappings"), but the transparent hugepage case
(added in a5b338f2b0b1: "thp: update futex compound knowledge") case
remained broken.

Found by Dave Jones and his trinity tool.

Reported-and-tested-by: Dave Jones <davej@fedoraproject.org>
Cc: stable@kernel.org # v2.6.38+
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 9538e10
History
Tip revision: f12d5bfceb7e1f9051563381ec047f7f13956c3c authored by Linus Torvalds on 12 December 2013, 17:38:42 UTC
futex: fix handling of read-only-mapped hugepages
Tip revision: f12d5bf
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