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btrfs: replace deprecated strncpy() with strscpy()

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strncpy() is deprecated for NUL-terminated destination buffers. Use
strscpy() instead and don't zero-initialize the param array.

Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Thorsten Blum 2025-02-25 20:26:14 +01:00 committed by David Sterba
parent 5a4041f2c4
commit 2df2c6ed89
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/sysfs.c
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@ -1330,13 +1330,13 @@ MODULE_PARM_DESC(read_policy,
int btrfs_read_policy_to_enum(const char *str, s64 *value_ret)
{
char param[32] = { 0 };
char param[32];
char __maybe_unused *value_str;
if (!str || strlen(str) == 0)
return 0;
strncpy(param, str, sizeof(param) - 1);
strscpy(param, str);
#ifdef CONFIG_BTRFS_EXPERIMENTAL
/* Separate value from input in policy:value format. */