From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out162-62-58-211.mail.qq.com (out162-62-58-211.mail.qq.com [162.62.58.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4CD4A20DC6 for ; Sat, 13 Jan 2024 11:03:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="GGFKv4Vs" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1705143804; bh=IalPj4dWcc3Tst3zLyeeQAncbEoxVIiQCJ3k5GdQ4SQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GGFKv4VsdFkcgFKVDaBOcD5d1hOjIkiSModDMs+KiqSu6wBj7XqFBo7Ij7OtpTM23 uh1WHCY+BrKJoIOeliDLpncecfQiFPT6wo6RDU2zApx9Zt75aVxqES7TzimTJT9Fo3 VIrHDPXzvcRynRlybdyEv6Yam86pixfe2BbOvbsI= Received: from pek-lxu-l1.wrs.com ([111.198.225.215]) by newxmesmtplogicsvrsza7-0.qq.com (NewEsmtp) with SMTP id DC9028D0; Sat, 13 Jan 2024 18:55:09 +0800 X-QQ-mid: xmsmtpt1705143309ts2d34r7z Message-ID: X-QQ-XMAILINFO: MWdgP8+gtiFRSS+ndu4x9KH00rQSYVWyvkIjAwUeb0KnyEmKKERwLzYYk7ZUt8 k4rZckQ60KqU4aZLo069ncLX5vw4qIS0RXPCtfRMO3Kh4CKVVG32zIhPoloBHT3uzIqNxh49wuNE BJE/KjSIdzq94pL4o16ev9m/jjV8+m2o4mh3MQo/pRAEB0nwNK7D34M3kpQHeRAv+tHTTomGcyKg WyMTazc6WDmeEfKC5C5QAT47N6QCVElOjIIqn1aDVzy2fwjnkWhDaCjhUblt3bvn646yN0En/bvg bXkLS2JNGLuN0D7sUymvomVy3gPgstgZkJZIETHbfa1ZUzvP+D9QanfClqGduxygcCpabpib02CW L7j2aS+Y46nsTdISx/eThCEcML3BC+QjNQs2xvSO6u6ZxpBOFqMuUmkyRUxIuOXrls+90YEkl/iu 1UTIfR8k019bcnil/8u2eyJNQCdv7fhC3KW3d74ye4ZO5EQFsCAPd+RwCUd0TrALhj6LO9zS/719 A+KCis5ncEN2R0JDkC2hsHc8g4uFdOK05MKRK9YlskI0HEKy67b2AP9A49kOfKEpM4I2zDUx/foK XP5ntC46Mvz1VkV3CxDQaGGXsnpsRz86BCx0iH2zg3n5717J+cR3rMZlDmpmBVJluZvEBkCYG9gB NKEGpRRTeZgUK6DPdgwz8ZkmxlXqYIpejRtVi4Qr3QpmWrevIRRyE3rYUGz8fHb4xLEhkAcFH7Jx YBOkm+cDDZCYyV30UHEFdVd3jX1p76zM5sIBco+Qft9vxi6c8LXWbZi/DDDlh29goxHS5rXgLlou QDCXQkwWwVauMrEepJhr1i5LQJt//5L/BRuiONhKjuB2t/nnzNyO3esNj4fpeY6ehHRx38douHqW xgs/gxvjqOhg+Ql8xKTBhneieOUjiA5olj2lEWG9Z8TRz767iVCXZQOs1m9e8Pfg== X-QQ-XMRINFO: Mp0Kj//9VHAxr69bL5MkOOs= From: Edward Adam Davis To: syzbot+a5e651ca75fa0260acd5@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [f2fs?] KASAN: slab-use-after-free Read in destroy_device_list Date: Sat, 13 Jan 2024 18:55:09 +0800 X-OQ-MSGID: <20240113105509.1700896-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <000000000000aac725060ed0b15c@google.com> References: <000000000000aac725060ed0b15c@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit please test slab-use-after-free Read in destroy_device_list #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 23a80d462c67 diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index d00d21a8b53a..9939e2445b1e 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -4879,6 +4879,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) free_sbi: if (sbi->s_chksum_driver) crypto_free_shash(sbi->s_chksum_driver); + sb->s_fs_info = NULL; kfree(sbi); /* give only one another chance */