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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-04 13:45:09 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-04 13:45:09 +0200
commit8ca1f4c6fb1462ee120730ea75c19da10d2f2d6f (patch)
treefa6bebc72c42a94b66d4b3676371753d31e66702 /fs/userfaultfd.c
parent9372da540bfdcfa345309043e57b335c900a8ad9 (diff)
parent199c9959d3a9b53f346c221757fc7ac507fbac50 (diff)
downloadlinux-rolling-stable.tar.gz
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/userfaultfd.c')
-rw-r--r--fs/userfaultfd.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 4b53dc4a3266..390e4b7d9cb9 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -786,6 +786,8 @@ void mremap_userfaultfd_fail(struct vm_userfaultfd_ctx *vm_ctx)
if (!ctx)
return;
+ atomic_dec(&ctx->mmap_changing);
+ VM_WARN_ON_ONCE(atomic_read(&ctx->mmap_changing) < 0);
userfaultfd_ctx_put(ctx);
}