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Geert Uytterhoeven 66081a7251 sysfs: sysfs_pathname/sysfs_add_one: Use strlcat() instead of strcat()

The warning check for duplicate sysfs entries can cause a buffer overflow
when printing the warning, as strcat() doesn't check buffer sizes.
Use strlcat() instead.

Since strlcat() doesn't return a pointer to the passed buffer, unlike
strcat(), I had to convert the nested concatenation in sysfs_add_one() to
an admittedly more obscure comma operator construct, to avoid emitting code
for the concatenation if CONFIG_BUG is disabled.

Signed-off-by: Geert Uytterhoeven <[email protected]>
Cc: [email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

2012-10-24 15:57:14 -07:00

bin.c

sysfs: Push file_update_time() into bin_page_mkwrite()

2012-07-31 01:02:47 +04:00

dir.c

sysfs: sysfs_pathname/sysfs_add_one: Use strlcat() instead of strcat()

2012-10-24 15:57:14 -07:00

file.c

sysfs: Complain bitterly about attempts to remove files from nonexistent directories.

2012-01-24 12:12:32 -08:00

group.c

sysfs: Prevent crash on unset sysfs group attributes