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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: a62a8ef9d9 ("virtio-fs: add virtiofs filesystem")
Cc: <[email protected]> # all LTS kernels
Signed-off-by: Xiangsheng Hou <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Christian Brauner <[email protected]>