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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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scsi: 3w-9xxx: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230517142955.1519572-1-azeemshaikh38@gmail.com

authored by

Azeem Shaikh and committed by
Kees Cook 7afbe5de 038d40ed

+1 -1
+1 -1
drivers/scsi/3w-9xxx.c
··· 617 617 } 618 618 619 619 /* Load rest of compatibility struct */ 620 - strlcpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION, 620 + strscpy(tw_dev->tw_compat_info.driver_version, TW_DRIVER_VERSION, 621 621 sizeof(tw_dev->tw_compat_info.driver_version)); 622 622 tw_dev->tw_compat_info.driver_srl_high = TW_CURRENT_DRIVER_SRL; 623 623 tw_dev->tw_compat_info.driver_branch_high = TW_CURRENT_DRIVER_BRANCH;