[PATCH] libcamera: dma_buf_allocator: Create memfd with CLOEXEC

[Laurent Pinchart]

Ensure that the memfd file descriptor won't be leaked to child processes
by creating it with MFD_CLOEXEC.

Fixes: ea4baaacc325 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf")
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 src/libcamera/dma_buf_allocator.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcamera/dma_buf_allocator.cpp b/src/libcamera/dma_buf_allocator.cpp
index 5ae517210adf..5ec29949c66a 100644
--- a/src/libcamera/dma_buf_allocator.cpp
+++ b/src/libcamera/dma_buf_allocator.cpp
@@ -132,7 +132,7 @@ UniqueFD DmaBufAllocator::allocFromUDmaBuf(const char *name, std::size_t size)
 	std::size_t pageMask = sysconf(_SC_PAGESIZE) - 1;
 	size = (size + pageMask) & ~pageMask;
 
-	int ret = memfd_create(name, MFD_ALLOW_SEALING);
+	int ret = memfd_create(name, MFD_ALLOW_SEALING | MFD_CLOEXEC);
 	if (ret < 0) {
 		ret = errno;
 		LOG(DmaBufAllocator, Error)

base-commit: 98071d3109c131820439f61d9380c0bd4cd2119a
-- 
Regards,

Laurent Pinchart