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Commit b4bda59b authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
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powerpc/64s: Fix VAS mm use after free



The refcount on mm is dropped before the coprocessor is detached.

Reported-by: default avatarSachin Sant <sachinp@linux.ibm.com>
Fixes: 7bc6f71b ("powerpc/vas: Define and use common vas_window struct")
Fixes: b22f2d88 ("powerpc/pseries/vas: Integrate API with open/close windows")
Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Tested-by: default avatarSachin Sant <sachinp@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230607101024.14559-1-npiggin@gmail.com
parent 27be2456
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