From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B797E7717F for ; Mon, 16 Dec 2024 19:16:32 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 1F5F36B0096; Mon, 16 Dec 2024 14:16:32 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 1A6526B00A7; Mon, 16 Dec 2024 14:16:32 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 06DB56B00AA; Mon, 16 Dec 2024 14:16:32 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id D9D826B00A7 for ; Mon, 16 Dec 2024 14:16:31 -0500 (EST) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 655281A09DE for ; Mon, 16 Dec 2024 19:16:31 +0000 (UTC) X-FDA: 82901776482.20.EB3D985 Received: from mail-il1-f208.google.com (mail-il1-f208.google.com [209.85.166.208]) by imf27.hostedemail.com (Postfix) with ESMTP id A837340011 for ; Mon, 16 Dec 2024 19:15:56 +0000 (UTC) Authentication-Results: imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of 3jHxgZwkbAEk39Avlwwp2l00to.rzzrwp53p2nzy4py4.nzx@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.208 as permitted sender) smtp.mailfrom=3jHxgZwkbAEk39Avlwwp2l00to.rzzrwp53p2nzy4py4.nzx@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1734376558; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references; bh=ysevNBa1o97DtsNJkILIAJiTHHF/LiJkIs1PQ7evepc=; b=YYgedSftIbfh4MLZKrJjZrhrFpG7SxrxQxgPce/srQyaL0bmX/J3yE2NWQf1rVHqWzVUKV ecGjMTS67jQQ8rkmBzIJudXTrx5pbFdFOYY8rHDr3VK84eX6ujyn9kFzxv4v4z3I7crqXw uVzMM2oPaYV1Dg369m5GIr/cbXNTMBw= ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=none; spf=pass (imf27.hostedemail.com: domain of 3jHxgZwkbAEk39Avlwwp2l00to.rzzrwp53p2nzy4py4.nzx@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.208 as permitted sender) smtp.mailfrom=3jHxgZwkbAEk39Avlwwp2l00to.rzzrwp53p2nzy4py4.nzx@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none) ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1734376558; a=rsa-sha256; cv=none; b=sVfmNMYPzaVsyjVADmghfV7MfzLnxJAvKNROLQ3/PIL5D8vMQxkvDPfC6VxiHL1aAArEy1 I/GOLcYjuKExm14OYB8a0FE4Rx1aefzECBwiVByUa06L3/6uDw6c9wGBxx+UbsdJixHebI kEtj2D097lakddM3QS/BQP7OkYrppAk= Received: by mail-il1-f208.google.com with SMTP id e9e14a558f8ab-3a7e0d7b804so45838695ab.0 for ; Mon, 16 Dec 2024 11:16:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734376588; x=1734981388; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=ysevNBa1o97DtsNJkILIAJiTHHF/LiJkIs1PQ7evepc=; b=sgZdVpBUnVKy3DNvo16arhvUK9dubQb+a42gHnDGBO+5C3F92xp6R082ZdOcO3Lr2V ZDolddjmPZ9GuQQVhEV1hxumRtF6/OBVw2+b72dDmtUm3MRe1rFRsVblUSbqcz0f8j6l 9ZWwpzuBRdGWvXWOEYdql7aVMz73TnmMp5nNbHnhvPZx0nJCPCUWkNggy1VFXR5fiIub 5fjbwcwfBSbc78sZhB/7rCaU0O00KvJBpu3VueLBNF5slYRHbQGf/kmfvX7R+RSV9KKC xqe1bsqA4q8DxWJw69BmK58d6ZDTD7EndVoGYv6eS4p/qkCFhoQyM5dr7HJEBGz+xWhl D68Q== X-Forwarded-Encrypted: i=1; AJvYcCU5ra1D34C1E34Y9XoJqldIXa3UnrtjMzr5BbifJs2tapUoVO7giwkU8U+xWZCcNiKrL9x25K+Reg==@kvack.org X-Gm-Message-State: AOJu0YwFCFaZQM1aEoUXbZ6IJYRmTW/EdII5X6WcFaG5tRQEaS33wRcL LdP7Uj2fj3qLt3rgqwFqyLqVHT8cy/1XjlF7+a0eX5j/eX6XGLC1x9QTZQCiCoC934XeK2WKvx/ hL9nUNsxWirnMNUMF/4OQ3EXBwOKgaj5mNzBZfXWkNByBRTzrya8+t48= X-Google-Smtp-Source: AGHT+IHTOhz8RR59D+DPzC/Y02b2hgEmzCRJftUNd0h/A+jIL3fCy1pDChtg6a1c5+BoSHqoGrilIWccmRX2FFBr5S42dKF2S2vk MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a8b:b0:3a7:7124:bd2c with SMTP id e9e14a558f8ab-3affab62206mr145529225ab.19.1734376588677; Mon, 16 Dec 2024 11:16:28 -0800 (PST) Date: Mon, 16 Dec 2024 11:16:28 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67607c8c.050a0220.37aaf.013a.GAE@google.com> Subject: [syzbot] [mm?] general protection fault in find_lock_task_mm From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: A837340011 X-Rspam-User: X-Stat-Signature: b4k8ak41iphx6qre4aox3s4z7agkm6wg X-HE-Tag: 1734376556-533749 X-HE-Meta: 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 h8QPHJdK 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 tfpldhbo eqiESY0ZCeF3SOBFUc0LuBt/uVDE38f9P3FblmPoobHT/+w1ntk+1Q9lwpRPoSzd+R2CwN6qaBE/QnudRnmlZmCW3QtEVVo5ozh34+995KOl/4JsHZEt7CBAdkAld2OW0+Bemvac+pnwsjM87vZSFFgqRWngr4pvYVqw4wLakMXi9vkUNjeEey3jPoiaN2YZQU/sfeYIbTTRx0Eutwx7Vzefr5KQkhU19eEavEnZwXCnPj4R2GLgNqs2D9BJYbeS1Jw7v8QocoBv4bvDibnc2Fo9++2mrGfFLe22LDyLfDQ6hsGDUHOPw1K1n92H6u6oFdEMkN3fYNgJOyz8z/jXe2BcheM8cclzlzb6wfurVFZv3rbUW5DZDpD69grkmjwVbnaf3DV8C6urYLjLGndA75QP8F2njNe2 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 231825b2e1ff Revert "unicode: Don't special case ignorable.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=133b4d44580000 kernel config: https://syzkaller.appspot.com/x/.config?x=99a5586995ec03b2 dashboard link: https://syzkaller.appspot.com/bug?extid=c2e074db555379260750 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=102844f8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/41e68d86d902/disk-231825b2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0cb4e353f885/vmlinux-231825b2.xz kernel image: https://storage.googleapis.com/syzbot-assets/c4df524e0176/bzImage-231825b2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c2e074db555379260750@syzkaller.appspotmail.com Oops: general protection fault, probably for non-canonical address 0xdffffc000000006c: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367] CPU: 0 UID: 0 PID: 8122 Comm: syz-executor Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089 Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 4a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 17 32 93 0f 84 RSP: 0018:ffffc9000d087990 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: 1ffff92001a10f44 RDI: 0000000000000360 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff901cc317 R11: 0000000000000002 R12: 0000000000000360 R13: ffff888034c38000 R14: 0000000000000000 R15: 0000000000000000 FS: 00005555879c4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555879c4808 CR3: 0000000030ed6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] task_lock include/linux/sched/task.h:229 [inline] find_lock_task_mm+0xd4/0x2f0 mm/oom_kill.c:140 __set_oom_adj.isra.0+0xcd8/0x1120 fs/proc/base.c:1157 oom_score_adj_write+0x1b8/0x200 fs/proc/base.c:1294 vfs_write+0x24c/0x1150 fs/read_write.c:677 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3c079847cf Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007fffc0defcf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3c079847cf RDX: 0000000000000004 RSI: 00007fffc0defd40 RDI: 0000000000000003 RBP: 00007f3c07a0320c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 R13: 00007fffc0defd40 R14: 00007fffc0df02a0 R15: 00007fffc0df02a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089 Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 4a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 17 32 93 0f 84 RSP: 0018:ffffc9000d087990 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: 1ffff92001a10f44 RDI: 0000000000000360 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff901cc317 R11: 0000000000000002 R12: 0000000000000360 R13: ffff888034c38000 R14: 0000000000000000 R15: 0000000000000000 FS: 00005555879c4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555879c4808 CR3: 0000000030ed6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 84 d2 0f 85 15 14 or %al,0x1415850f(%rdx,%rdx,8) 7: 00 00 add %al,(%rax) 9: 44 8b 0d 4a 00 a7 0e mov 0xea7004a(%rip),%r9d # 0xea7005a 10: 45 85 c9 test %r9d,%r9d 13: 0f 84 b4 0e 00 00 je 0xecd 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 96 2c 00 00 jne 0x2cca 34: 49 8b 04 24 mov (%r12),%rax 38: 48 3d a0 17 32 93 cmp $0xffffffff933217a0,%rax 3e: 0f .byte 0xf 3f: 84 .byte 0x84 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup