diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2025-06-12 10:08:24 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-04 13:33:00 -0700 |
| commit | 5ef04a7b068cbb828eba226aacb42f880f7924d7 (patch) | |
| tree | 92595a2d68b1a4b41e4762e62c0b58e4467d0a83 /mm/userfaultfd.c | |
| parent | c975e1dfcc929dbfde8abfa514494b66f0335006 (diff) | |
| parent | d69eb204c255c35abd9e8cb621484e8074c75eaa (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.17-rc5).
No conflicts.
Adjacent changes:
include/net/sock.h
c51613fa276f ("net: add sk->sk_drop_counters")
5d6b58c932ec ("net: lockless sock_i_ino()")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'mm/userfaultfd.c')
| -rw-r--r-- | mm/userfaultfd.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index 45e6290e2e8b..aefdf3a812a1 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -1453,10 +1453,15 @@ out: folio_unlock(src_folio); folio_put(src_folio); } - if (dst_pte) - pte_unmap(dst_pte); + /* + * Unmap in reverse order (LIFO) to maintain proper kmap_local + * index ordering when CONFIG_HIGHPTE is enabled. We mapped dst_pte + * first, then src_pte, so we must unmap src_pte first, then dst_pte. + */ if (src_pte) pte_unmap(src_pte); + if (dst_pte) + pte_unmap(dst_pte); mmu_notifier_invalidate_range_end(&range); if (si) put_swap_device(si); |