diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/eeprom/at24.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index d87f77f790d6..c1cceeaf9aeb 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -274,6 +274,9 @@ static ssize_t at24_read(struct at24_data *at24, if (unlikely(!count)) return count; + if (off + count > at24->chip.byte_len) + return -EINVAL; + /* * Read data from chip, protecting against concurrent updates * from this host, but not from other I2C masters. @@ -328,6 +331,9 @@ static ssize_t at24_eeprom_write(struct at24_data *at24, const char *buf, unsigned long timeout, write_time; unsigned next_page; + if (offset + count > at24->chip.byte_len) + return -EINVAL; + /* Get corresponding I2C address and adjust offset */ client = at24_translate_offset(at24, &offset); |