Muchun Song 052e4a661f arm64: mm: fix p?d_leaf() ...

[ Upstream commit 23bc8f69f0 ]

The pmd_leaf() is used to test a leaf mapped PMD, however, it misses
the PROT_NONE mapped PMD on arm64.  Fix it.  A real world issue [1]
caused by this was reported by Qian Cai. Also fix pud_leaf().

Link: https://patchwork.kernel.org/comment/24798260/ [1]
Fixes: 8aa82df3c1 ("arm64: mm: add p?d_leaf() definitions")
Reported-by: Qian Cai <quic_qiancai@quicinc.com>
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Link: https://lore.kernel.org/r/20220422060033.48711-1-songmuchun@bytedance.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-04-27 13:53:52 +02:00

..

asm

arm64: mm: fix p?d_leaf()

2022-04-27 13:53:52 +02:00

uapi/asm

KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated

2022-03-11 12:11:53 +01:00