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| author |   Ingo Molnar <mingo@kernel.org> | 2024-04-06 13:00:32 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-04-06 13:00:32 +0200 |
| commit | 5f2ca44ed235c86a0d6b9bfb599d1664ea94b4b9 (patch) | |
| tree | 0475ba937cecc36b1e38afcd0f3babba23092aba /mm/memory.c | |
| parent | x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() (diff) | |
| parent | Merge tag 'firewire-fixes-6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 (diff) | |
| download | wireguard-linux-5f2ca44ed235c86a0d6b9bfb599d1664ea94b4b9.tar.xz wireguard-linux-5f2ca44ed235c86a0d6b9bfb599d1664ea94b4b9.zip | |
Merge branch 'linus' into x86/urgent, to pick up dependent commit
We want to fix:
0e110732473e ("x86/retpoline: Do the necessary fixup to the Zen3/4 srso return thunk for !SRSO")
So merge in Linus's latest into x86/urgent to have it available.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index 904f70b99498..d2155ced45f8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -5973,6 +5973,10 @@ int follow_phys(struct vm_area_struct *vma, goto out; pte = ptep_get(ptep); + /* Never return PFNs of anon folios in COW mappings. */ + if (vm_normal_folio(vma, address, pte)) + goto unlock; + if ((flags & FOLL_WRITE) && !pte_write(pte)) goto unlock; |