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fanotify: replace deprecated strcpy in fanotify_info_copy_{name,name2}

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strcpy() has been deprecated [1] because it performs no bounds checking
on the destination buffer, which can lead to buffer overflows. Replace
it with the safer strscpy().

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1]
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260321210544.519259-4-thorsten.blum@linux.dev
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Thorsten Blum
2026-03-21 22:05:47 +01:00
committed by Jan Kara
parent 4520b96b81
commit 0fdbe84553
1 changed files with 3 additions and 2 deletions
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fs/notify/fanotify/fanotify.h
+3 -2
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@@ -2,6 +2,7 @@
#include <linux/fsnotify_backend.h>
#include <linux/path.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/exportfs.h>
#include <linux/hashtable.h>
@@ -218,7 +219,7 @@ static inline void fanotify_info_copy_name(struct fanotify_info *info,
return;
info->name_len = name->len;
strcpy(fanotify_info_name(info), name->name);
strscpy(fanotify_info_name(info), name->name, name->len + 1);
}
static inline void fanotify_info_copy_name2(struct fanotify_info *info,
@@ -228,7 +229,7 @@ static inline void fanotify_info_copy_name2(struct fanotify_info *info,
return;
info->name2_len = name->len;
strcpy(fanotify_info_name2(info), name->name);
strscpy(fanotify_info_name2(info), name->name, name->len + 1);
}
/*