diff options
Diffstat (limited to 'drivers/nvmem/core.c')
| -rw-r--r-- | drivers/nvmem/core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index eb357ac2e54a2a..2c6b99402df8a7 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -807,6 +807,11 @@ static int nvmem_add_cells_from_dt(struct nvmem_device *nvmem, struct device_nod if (addr && len == (2 * sizeof(u32))) { info.bit_offset = be32_to_cpup(addr++); info.nbits = be32_to_cpup(addr); + if (info.bit_offset >= BITS_PER_BYTE || info.nbits < 1) { + dev_err(dev, "nvmem: invalid bits on %pOF\n", child); + of_node_put(child); + return -EINVAL; + } } info.np = of_node_get(child); |