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Wed, 7 May 2025 12:48:03 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A03CC2004E; Wed, 7 May 2025 12:48:03 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8CCF620043; Wed, 7 May 2025 12:48:03 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTPS; Wed, 7 May 2025 12:48:03 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 55669) id 370F5E0610; Wed, 07 May 2025 14:48:03 +0200 (CEST) From: Alexander Gordeev To: Andrew Morton , Andrey Ryabinin , Daniel Axtens Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com, linux-s390@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v5 0/1] kasan: Avoid sleepable page allocation from atomic context Date: Wed, 7 May 2025 14:48:02 +0200 Message-ID: X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=SvuQ6OO0 c=1 sm=1 tr=0 ts=681b5687 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=dt9VzEwgFbYA:10 a=RptFD5b0m2ehXSuSLUwA:9 a=zZCYzV9kfG8A:10 X-Proofpoint-GUID: ls0CSTEdIVroqRAPQ4MRaJy_bGIyuZkh X-Proofpoint-ORIG-GUID: w76n1Ot5A2NfAgFq8dUBreGB-wgkHpPu X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTA3MDExOSBTYWx0ZWRfX8fftuVRzpHmz C9OXZDcMi45ugFCLH5H7G6/lJZsCvwZDupHonClR8qSdrvG0sBJbqM0F/OrcCod5exx+Q8Md9Lw 5kSuOTzLLR/ulJfXkDqEhOMoDr6oJy4QlL3eQ67PM2fPPu7Ry0JSXH0e9gtBPkKknCfnchdYQyT sNEaur/fRmK0VjRgQ49JYDrZyPS2Hl+ImVWP5YKGeI0khECPbvOpSE6LZy/NWpygtwUSSdwSsTI ce35Cf76owiXIFPhrfZcfJAHPNDYfvI8dNyiBM92S62IqXWp9cgFOKo1TrLmAEsxQVcOSiTHHHr klmf5Rt4SwNECdv/XL6bF7tcpiJ7kZuFrOKOHJLsmfmlxl4rTqn4u3UMzMFrdYvFws4TyHwZuRK 1jEI5U9u9Dh5OCQrtWcuCNp2T4b9khOaBlbBrfGI1KyVQl8Ry6PGob7dTc5u0B7vVqqLXEXy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-07_04,2025-05-06_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 bulkscore=0 mlxlogscore=555 phishscore=0 adultscore=0 priorityscore=1501 spamscore=0 mlxscore=0 suspectscore=0 clxscore=1015 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505070119 Hi All, Chages since v4: - unused pages leak is avoided Chages since v3: - pfn_to_virt() changed to page_to_virt() due to compile error Chages since v2: - page allocation moved out of the atomic context Chages since v1: - Fixes: and -stable tags added to the patch description Thanks! Alexander Gordeev (1): kasan: Avoid sleepable page allocation from atomic context mm/kasan/shadow.c | 77 ++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 63 insertions(+), 14 deletions(-) -- 2.45.2