bianbu-linux-6.6/drivers/net/wireless/broadcom
Juerg Haefliger 4fed494abc wifi: brcmfmac: Replace 1-element arrays with flexible arrays
Since commit 2d47c6956a ("ubsan: Tighten UBSAN_BOUNDS on GCC"),
UBSAN_BOUNDS no longer pretends 1-element arrays are unbounded. Walking
'element' and 'channel_list' will trigger warnings, so make them proper
flexible arrays.

False positive warnings were:

  UBSAN: array-index-out-of-bounds in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:6984:20
  index 1 is out of range for type '__le32 [1]'

  UBSAN: array-index-out-of-bounds in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:1126:27
  index 1 is out of range for type '__le16 [1]'

for these lines of code:

  6884  ch.chspec = (u16)le32_to_cpu(list->element[i]);

  1126  params_le->channel_list[i] = cpu_to_le16(chanspec);

Cc: stable@vger.kernel.org # 6.5+
Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230914070227.12028-1-juerg.haefliger@canonical.com
2023-09-18 16:20:21 +03:00
..
b43 wifi: b43: fix incorrect __packed annotation 2023-05-17 09:24:09 +03:00
b43legacy wifi: b43: fix incorrect __packed annotation 2023-05-17 09:24:09 +03:00
brcm80211 wifi: brcmfmac: Replace 1-element arrays with flexible arrays 2023-09-18 16:20:21 +03:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00