From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (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 2036D198A0E for ; Fri, 14 Jun 2024 12:16:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718367383; cv=none; b=XTURBzAFVVWLYf+DiDx2xJglfxZd0AlpybtrfXSfrSur6WIvmI836cfD3NlR3/iPFkvjglzCQiTG3A03mdO6X+abXZQ612Mg0i7THweBceHRA+F6wCSePwYVbXlzLJqy3wXDXKuE9kf5wVB+AdCNiyw8n+dlqWBEXSdGJC26ixU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718367383; c=relaxed/simple; bh=5ZIn50QEuy5g8lTS/39KTj9ViTp4Wd65hQrJIkAqswg=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=N5nJRliTBnI/Tx/AkpldzKhmW1HBVkpNTF0ODNUeuhIGU7LTc014HWyhWcQBo9CJXNSMqoi0XJmwL7Cb4eFK1RRBZDrFsIi+8xxcAftQylqCTWNyX2apaIbZMoOJLIU3nQiJOa+Wto6ph0L2abAY4vfpYxAeENW4wxhAM8+QfV0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.206 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f206.google.com with SMTP id e9e14a558f8ab-375897251a3so19319455ab.3 for ; Fri, 14 Jun 2024 05:16:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718367381; x=1718972181; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=bnaqLvxNVbenZpNomvA557TtJVQBg60d0JVc0dY9pqA=; b=qZQfTiZd1vxRyQljHyBlBY3psbkze+BRIa+0jwXgUpTPxOR5cLEyRfpHKkyGMJvmBk tH8PA2w2OPnve/LPbPf1bTY76WBrwFV6R7loFs9rePJbfv+Bx8//7YjgB1sdWVks5Xgm cki3XjCeA7ZL0rGCfmx/tuoS7vmHyTgKczQ9A/b3ct/eiqK9yOx30mqPtoDelzvMVqL0 8SI4qF//4aiyQzz/Cyyw9SKvm7APbZxpGuHxK3tdYq3mpmyQc7e7RZIODRogFOTNEcQM ZO85g6lQcUHT0pbCOjIOU1wI+6OZFstB3p0d9Yz3D/WZq25D6Qa6bjmiV/GuLsVlRyQx Dd/w== X-Forwarded-Encrypted: i=1; AJvYcCWifZARYBDwMZgJCPmyLF+KjpMAD3Vl/pE/J3kyW2EN6MZPT/KIgWoj3yJqseSLDLdPnqtw6CxrSQPBlGhNLoqvBn4VpsSJkPcuHPDR2C0= X-Gm-Message-State: AOJu0YxhnTMGavK857hA9k18fZavyCAzuuKdPqvZCBXhH2uWQgNkKKAU l901qtF6UYMQBHZkhICZWWBvLXfw/606qf9C3uUr5jYXJnHHcR8O6uytk35vWipKnAERzkRMapF 4EiVRGB/C/5FJ22ssoxxoMIM0aUaFpiCIr5S3y5hsA6qkXs5OUqAcu1c= X-Google-Smtp-Source: AGHT+IHhS6uhql/A02Jf4l/sNpOlYSyfkRpXg5RTgcD76sn9YH+d72myYw/ODhvtksdoaD2TMMTFeQoswbg47/Dej+W7qrDuudV6 Precedence: bulk X-Mailing-List: linux-bcachefs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1c29:b0:375:acd3:31b6 with SMTP id e9e14a558f8ab-375e0e3558emr1502975ab.2.1718367381318; Fri, 14 Jun 2024 05:16:21 -0700 (PDT) Date: Fri, 14 Jun 2024 05:16:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005b7bce061ad89550@google.com> Subject: [syzbot] [bcachefs?] KMSAN: uninit-value in bch2_dirent_invalid (2) From: syzbot To: bfoster@redhat.com, kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 614da38e2f7a Merge tag 'hid-for-linus-2024051401' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17880156980000 kernel config: https://syzkaller.appspot.com/x/.config?x=f5d2cbf33633f507 dashboard link: https://syzkaller.appspot.com/bug?extid=f24f0d68e1a0dc1b8ec9 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/89eafb874b71/disk-614da38e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/356000512ad9/vmlinux-614da38e.xz kernel image: https://storage.googleapis.com/syzbot-assets/839c73939115/bzImage-614da38e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f24f0d68e1a0dc1b8ec9@syzkaller.appspotmail.com ===================================================== BUG: KMSAN: uninit-value in bch2_dirent_name_bytes fs/bcachefs/dirent.c:24 [inline] BUG: KMSAN: uninit-value in bch2_dirent_get_name fs/bcachefs/dirent.c:34 [inline] BUG: KMSAN: uninit-value in bch2_dirent_invalid+0x1ea/0xa30 fs/bcachefs/dirent.c:105 bch2_dirent_name_bytes fs/bcachefs/dirent.c:24 [inline] bch2_dirent_get_name fs/bcachefs/dirent.c:34 [inline] bch2_dirent_invalid+0x1ea/0xa30 fs/bcachefs/dirent.c:105 bch2_bkey_val_invalid+0x24f/0x380 fs/bcachefs/bkey_methods.c:140 bset_key_invalid fs/bcachefs/btree_io.c:831 [inline] validate_bset_keys+0x12d8/0x25d0 fs/bcachefs/btree_io.c:904 validate_bset_for_write+0x1dd/0x340 fs/bcachefs/btree_io.c:1945 __bch2_btree_node_write+0x4777/0x67c0 fs/bcachefs/btree_io.c:2138 bch2_btree_node_write+0xa5/0x2e0 fs/bcachefs/btree_io.c:2288 btree_node_write_if_need fs/bcachefs/btree_io.h:153 [inline] __btree_node_flush+0x4d0/0x640 fs/bcachefs/btree_trans_commit.c:229 bch2_btree_node_flush0+0x35/0x60 fs/bcachefs/btree_trans_commit.c:238 journal_flush_pins+0xce6/0x1780 fs/bcachefs/journal_reclaim.c:553 __bch2_journal_reclaim+0xd88/0x1610 fs/bcachefs/journal_reclaim.c:685 bch2_journal_reclaim_thread+0x18e/0x760 fs/bcachefs/journal_reclaim.c:727 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was stored to memory at: memcpy_u64s_small fs/bcachefs/util.h:511 [inline] bkey_p_copy fs/bcachefs/bkey.h:46 [inline] bch2_sort_keys+0x1b4d/0x2cb0 fs/bcachefs/bkey_sort.c:194 __bch2_btree_node_write+0x3acd/0x67c0 fs/bcachefs/btree_io.c:2100 bch2_btree_node_write+0xa5/0x2e0 fs/bcachefs/btree_io.c:2288 btree_node_write_if_need fs/bcachefs/btree_io.h:153 [inline] __btree_node_flush+0x4d0/0x640 fs/bcachefs/btree_trans_commit.c:229 bch2_btree_node_flush0+0x35/0x60 fs/bcachefs/btree_trans_commit.c:238 journal_flush_pins+0xce6/0x1780 fs/bcachefs/journal_reclaim.c:553 __bch2_journal_reclaim+0xd88/0x1610 fs/bcachefs/journal_reclaim.c:685 bch2_journal_reclaim_thread+0x18e/0x760 fs/bcachefs/journal_reclaim.c:727 kthread+0x3e2/0x540 kernel/kthread.c:389 ret_from_fork+0x6d/0x90 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Uninit was created at: __kmalloc_large_node+0x231/0x370 mm/slub.c:3994 __do_kmalloc_node mm/slub.c:4027 [inline] __kmalloc_node+0xb10/0x10c0 mm/slub.c:4046 kmalloc_node include/linux/slab.h:648 [inline] kvmalloc_node+0xc0/0x2d0 mm/util.c:634 kvmalloc include/linux/slab.h:766 [inline] btree_bounce_alloc fs/bcachefs/btree_io.c:118 [inline] bch2_btree_node_read_done+0x4e68/0x75e0 fs/bcachefs/btree_io.c:1185 btree_node_read_work+0x8a5/0x1eb0 fs/bcachefs/btree_io.c:1324 bch2_btree_node_read+0x3d42/0x4b50 __bch2_btree_root_read fs/bcachefs/btree_io.c:1748 [inline] bch2_btree_root_read+0xa6c/0x13d0 fs/bcachefs/btree_io.c:1772 read_btree_roots+0x454/0xee0 fs/bcachefs/recovery.c:457 bch2_fs_recovery+0x7b6a/0x93e0 fs/bcachefs/recovery.c:785 bch2_fs_start+0x7b2/0xbd0 fs/bcachefs/super.c:1043 bch2_fs_open+0x152a/0x15f0 fs/bcachefs/super.c:2105 bch2_mount+0x90d/0x1d90 fs/bcachefs/fs.c:1906 legacy_get_tree+0x114/0x290 fs/fs_context.c:662 vfs_get_tree+0xa7/0x570 fs/super.c:1779 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352 path_mount+0x742/0x1f20 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x725/0x810 fs/namespace.c:3875 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875 x64_sys_call+0x2bf4/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 PID: 15565 Comm: bch-reclaim/loo Not tainted 6.9.0-syzkaller-02707-g614da38e2f7a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 ===================================================== --- 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 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