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authorJustin Stitt <justinstitt@google.com>2023-09-13 03:10:24 +0200
committerIra Weiny <ira.weiny@intel.com>2023-09-27 19:33:46 +0200
commit75b3d5dc0846cfa54ea52d7d84215b761ecbf569 (patch)
treeda4d6b0567d87b81228938d896792d46bd2075d7 /fs/nls/nls_cp737.c
parentLinux 6.6-rc3 (diff)
downloadlinux-75b3d5dc0846cfa54ea52d7d84215b761ecbf569.tar.xz
linux-75b3d5dc0846cfa54ea52d7d84215b761ecbf569.zip
dax: refactor deprecated strncpy
`strncpy` is deprecated for use on NUL-terminated destination strings [1]. We should prefer more robust and less ambiguous string interfaces. `dax_id->dev_name` is expected to be NUL-terminated and has been zero-allocated. A suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer. Moreover, due to `dax_id` being zero-allocated the padding behavior of `strncpy` is not needed and a simple 1:1 replacement of strncpy -> strscpy should suffice. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90 Cc: linux-hardening@vger.kernel.org Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com>
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