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-rw-r--r--src/shared/memfd.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/shared/memfd.c b/src/shared/memfd.c
index 6804b42361..d94c6268dd 100644
--- a/src/shared/memfd.c
+++ b/src/shared/memfd.c
@@ -176,7 +176,11 @@ int sd_memfd_map(sd_memfd *m, uint64_t offset, size_t size, void **p) {
if (sealed < 0)
return sealed;
- q = mmap(NULL, size, sealed ? PROT_READ : PROT_READ|PROT_WRITE, MAP_PRIVATE, m->fd, offset);
+ if (sealed)
+ q = mmap(NULL, size, PROT_READ, MAP_PRIVATE, m->fd, offset);
+ else
+ q = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, m->fd, offset);
+
if (q == MAP_FAILED)
return -errno;