From: Tristan Madani <tristmd@gmail.com>
To: Christian Lamparter <chunkeey@googlemail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org,
Tristan Madani <tristan@talencesecurity.com>
Subject: [PATCH v3 0/3] wifi: carl9170: firmware trust boundary hardening
Date: Tue, 21 Apr 2026 13:49:25 +0000 [thread overview]
Message-ID: <20260421134929.325662-1-tristmd@gmail.com> (raw)
From: Tristan Madani <tristan@talencesecurity.com>
This series adds missing bounds checks for firmware-controlled fields
in the carl9170 USB driver.
Patch 1 bounds the cmd callback memcpy to prevent heap overflow from
an oversized firmware response. Patch 2 fixes an off-by-two in the TX
status handler. Patch 3 caps the failover copy to rx_failover_missing
bytes, using min_t per Christian Lamparter.
Changes in v3:
- Regenerated from wireless-next with proper git format-patch.
Changes in v2:
- Use min_t() instead of separate if-check in patch 3, per
Christian Lamparter.
Tristan Madani (3):
wifi: carl9170: bound memcpy length in cmd callback to prevent OOB
read
wifi: carl9170: fix OOB read from off-by-two in TX status handler
wifi: carl9170: fix buffer overflow in rx_stream failover path
drivers/net/wireless/ath/carl9170/rx.c | 7 +++++--
drivers/net/wireless/ath/carl9170/tx.c | 2 +-
2 files changed, 6 insertions(+), 3 deletions(-)
--
2.47.3
next reply other threads:[~2026-04-21 13:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-21 13:49 Tristan Madani [this message]
2026-04-21 13:49 ` [PATCH v3 1/3] wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read Tristan Madani
2026-04-21 13:49 ` [PATCH v3 2/3] wifi: carl9170: fix OOB read from off-by-two in TX status handler Tristan Madani
2026-04-21 13:49 ` [PATCH v3 3/3] wifi: carl9170: fix buffer overflow in rx_stream failover path Tristan Madani
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