virtiofs: add filesystem context source name check
commit a94fd938df2b1628da66b498aa0eeb89593bc7a2 upstream. In certain scenarios, for example, during fuzz testing, the source name may be NULL, which could lead to a kernel panic. Therefore, an extra check for the source name should be added. Fixes: a62a8ef9 ("virtio-fs: add virtiofs filesystem") Cc: <stable@vger.kernel.org> # all LTS kernels Signed-off-by:Xiangsheng Hou <xiangsheng.hou@mediatek.com> Link: https://lore.kernel.org/20250407115111.25535-1-xiangsheng.hou@mediatek.com Signed-off-by:
Christian Brauner <brauner@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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