diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/spectral.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/spectral.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/spectral.c b/drivers/net/wireless/ath/ath11k/spectral.c index ac4da99b5577..4100cc1449a2 100644 --- a/drivers/net/wireless/ath/ath11k/spectral.c +++ b/drivers/net/wireless/ath/ath11k/spectral.c @@ -581,6 +581,7 @@ int ath11k_spectral_process_fft(struct ath11k *ar, u16 length, freq; u8 chan_width_mhz, bin_sz; int ret; + u32 check_length; lockdep_assert_held(&ar->spectral.lock); @@ -614,6 +615,13 @@ int ath11k_spectral_process_fft(struct ath11k *ar, return -EINVAL; } + check_length = sizeof(*fft_report) + (num_bins * ab->hw_params.spectral.fft_sz); + ret = ath11k_dbring_validate_buffer(ar, data, check_length); + if (ret) { + ath11k_warn(ar->ab, "found magic value in fft data, dropping\n"); + return ret; + } + ret = ath11k_spectral_pull_search(ar, data, &search); if (ret) { ath11k_warn(ab, "failed to pull search report %d\n", ret); @@ -747,6 +755,12 @@ static int ath11k_spectral_process_data(struct ath11k *ar, goto err; } + ret = ath11k_dbring_validate_buffer(ar, data, tlv_len); + if (ret) { + ath11k_warn(ar->ab, "found magic value in spectral summary, dropping\n"); + goto err; + } + summary = (struct spectral_summary_fft_report *)tlv; ath11k_spectral_pull_summary(ar, ¶m->meta, summary, &summ_rpt); |