From: Jiazi Li <jqqlijiazi@gmail.com>
To: Kees Cook <kees@kernel.org>, Andy Shevchenko <andy@kernel.org>,
Ping-Ke Shih <pkshih@realtek.com>,
Julia Lawall <Julia.Lawall@inria.fr>,
Nicolas Palix <nicolas.palix@imag.fr>
Cc: Jiazi Li <jqqlijiazi@gmail.com>,
linux-hardening@vger.kernel.org, linux-wireless@vger.kernel.org
Subject: [PATCH v3 0/3] Add str_alloc_free() helper
Date: Thu, 7 May 2026 19:03:02 +0800 [thread overview]
Message-ID: <cover.1778051552.git.jqqlijiazi@gmail.com> (raw)
Currently finds 4 locations:
./drivers/net/wireless/realtek/rtw89/fw.c:2557:7-12: opportunity for str_alloc_free(valid)
./drivers/net/wireless/realtek/rtw89/fw.c:2693:7-12: opportunity for str_alloc_free(valid)
./drivers/android/tests/binder_alloc_kunit.c:196:6-21: opportunity for str_alloc_free(alloc -> pages [ i ])
./mm/slub.c:1634:3-8: opportunity for str_alloc_free(alloc)
Patch 3 is based on
https://lore.kernel.org/linux-hardening/CAHp75VdHY814NRfyUfWeqRd4-DwYzHGh25OTsUB5EFpRKpVQLQ@mail.gmail.com/T/#t.
---
Changes in v3: Add first user for this helper
v2: https://lore.kernel.org/linux-hardening/CAHp75Vdvdr0TPzuDDPSoJ4Nixk-6qO_x6Or9iY9LNwSO1Q6mHg@mail.gmail.com/T/#mfb405519f7b3a06f4fcaa8e5a799da5299d9ee85
Jiazi Li (3):
lib/string_choices: Add str_alloc_free() helper
wifi: rtw89: Make use of str_alloc_free helper
coccinelle: Add rules to find str_alloc_free() replacements
drivers/net/wireless/realtek/rtw89/fw.c | 4 +--
include/linux/string_choices.h | 6 ++++
scripts/coccinelle/api/string_choices.cocci | 38 +++++++++++++++++++++
3 files changed, 46 insertions(+), 2 deletions(-)
--
2.49.0
next reply other threads:[~2026-05-07 11:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-07 11:03 Jiazi Li [this message]
2026-05-07 11:03 ` [PATCH v3 1/3] lib/string_choices: Add str_alloc_free() helper Jiazi Li
2026-05-08 5:18 ` Greg KH
2026-05-07 11:03 ` [PATCH v3 2/3] wifi: rtw89: Make use of str_alloc_free helper Jiazi Li
2026-05-07 11:04 ` [PATCH v3 3/3] coccinelle: Add rules to find str_alloc_free() replacements Jiazi Li
2026-05-07 11:10 ` [PATCH v3 0/3] Add str_alloc_free() helper Johannes Berg
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