From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 91BB113D897 for ; Sat, 12 Oct 2024 23:22:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728775372; cv=none; b=oBizYOskxg6uyKgXKZUu+WQA7hEJNJJI5Q+Y34xxQzz8tnO24th/VvjIyv9KIwcP3hulmWr+7ITwCRh1bj1veruiQUT9VY8NV/pCdgZWVMqb/lGabANUr3a2fmBoLgyKtbzq+ITddBEfyoV6nz9mTsWT1XQNb2ZYAKfRb9ktngs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728775372; c=relaxed/simple; bh=dZ2kWqDZeO92k4C9sR7En7LEnIxxx84BNgPdeCGB9yE=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=CtxPVflpfaPLFm1WSHA/p8gjobNwCaNXYptxCPhfRih87BelE80Pc577H9lXjLH4aAs0D694kMV2W5Zy2iFT6j1J7/sv+mmxpn5kz+oDAz/G7XOEC0w2YI0KHciy7zZ/1dU3R+EltVvzLmxNXb/CKl7ApH2bvU66raC6iUmK2RE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--cmllamas.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=xonZenvJ; arc=none smtp.client-ip=209.85.128.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--cmllamas.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="xonZenvJ" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-690404fd230so62694037b3.3 for ; Sat, 12 Oct 2024 16:22:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1728775369; x=1729380169; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=qO0fNi/dBWB7Rgb+vFJf5SFKBufk+k/SaxINE1J9P7g=; b=xonZenvJxrLpe1IFt+eZhg/7hF+i/8CeeIIRL8W9gowtSenh6NY0RdFJgzCXo2j60q H7AJdMUwDTGwjVefhRgv1utP0nmOu/HxWEawuVqdGbCzPwQtwwGs/0OQaqXmV8FWuhb+ 5TVhDVKztyXRgTpeFqZFwhUnvkYUzKnybDSLK/reOcNC7AcmW7CVJyD/I4eZwjfRADb1 J7weG/tvIl/SK4Rbf5szCh18aJ1YLeYzh39vO2erSIlwwAFpc2jyQQGMsT9g6RBwNQvv DDSzp2MQKy0CCGsICSn74JtAcLzI7g7rii9Mdui4fPCxY2Xhl0ef3Oq59ZlvTRkhV6mD JiXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728775369; x=1729380169; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=qO0fNi/dBWB7Rgb+vFJf5SFKBufk+k/SaxINE1J9P7g=; b=q83yTIatupCSoCu4iHmRRGHQiqj0du7ZT/DUU9Na7xPpKYdlYwvRzT20fJji6vKCIg dHuHjjC17JwkggALnwswVJghvj3Seg9IA8iYmC0IxGXDGoxCcZWpTaUcrx1t9nxGlBgj WY3uwDj04Clofha7Sjdgz53oJLv/7gZpgLcruYhrg3uqIoj6YpK/n6GuJledTOaLLMxC qgIMC08wT2lFQL3o59Muu0AYWIhdFfK5rMbBZT4qNYubyVTujyTyYgRHzE0yXdpyZgf6 0j9cum0/6XEbQtu247hdglE0IBNttrJQcybY/qUcGHCVL3ekoEtc1rQUhL7Vjb2sCZ86 gLWQ== X-Gm-Message-State: AOJu0YxRbXJRGkopBcF6WGm6gIIMmEAw3GFfRk0p/xa7n/6lNzVH6zbQ yFcJKEAqKPVKOLZnCf2m8xUmkJbqyZJHGEOy+y71+UzXExiqOmY70CAwplsJrlbB/g65HY7hd63 dexBteXWqdEPAhp/DLzOrleY1Rm0qs1GS0SMCTQeFyjgQC8FKWjrkSrc8Q4bIPmtAJIptOgkXbQ duVrWmNTmdr7/3Uo8YAhOzBZQvju9R0SzYgmjYMlLK5LU= X-Google-Smtp-Source: AGHT+IF1XVOOeIsdbeadI6XZc+vI1iDCvPMN4Zygb8Oxt7iSzdYf8pOJ2X9VetqFd4CgkpQfNuIqAXljJiFBUw== X-Received: from xllamas.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5070]) (user=cmllamas job=sendgmr) by 2002:a05:690c:6012:b0:6e3:8cf8:7b7 with SMTP id 00721157ae682-6e38cf80813mr36437b3.8.1728775368987; Sat, 12 Oct 2024 16:22:48 -0700 (PDT) Date: Sat, 12 Oct 2024 23:22:40 +0000 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog Message-ID: <20241012232244.2768048-1-cmllamas@google.com> Subject: [PATCH 5.4.y 0/4] lockdep: deadlock fix and dependencies From: Carlos Llamas To: stable@vger.kernel.org Cc: sashal@kernel.org, boqun.feng@gmail.com, bvanassche@acm.org, cmllamas@google.com, gregkh@linuxfoundation.org, longman@redhat.com, paulmck@kernel.org, xuewen.yan@unisoc.com, zhiguo.niu@unisoc.com, kernel-team@android.com, penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org Content-Type: text/plain; charset="UTF-8" This patchset adds the dependencies to apply commit a6f88ac32c6e ("lockdep: fix deadlock issue between lockdep and rcu") to the 5.4-stable tree. See the "FAILED" report at [1]. Note the dependencies actually fix a UAF and a bad recursion pattern. Thus it makes sense to also backport them. [1] https://lore.kernel.org/all/2024100226-unselfish-triangle-e5eb@gregkh/ Peter Zijlstra (2): locking/lockdep: Fix bad recursion pattern locking/lockdep: Rework lockdep_lock Waiman Long (1): locking/lockdep: Avoid potential access of invalid memory in lock_class Zhiguo Niu (1): lockdep: fix deadlock issue between lockdep and rcu kernel/locking/lockdep.c | 215 +++++++++++++++++++++++---------------- 1 file changed, 125 insertions(+), 90 deletions(-) -- 2.47.0.rc1.288.g06298d1525-goog