From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f79.google.com (mail-io1-f79.google.com [209.85.166.79]) (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 B67A8296FA2 for ; Wed, 30 Apr 2025 21:08:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746047321; cv=none; b=tJ9n47t2JNn2i5f+fLBQnJW+LSDY+Xgo3w7MEVBaWjL6bUpMZ4SMchxgWpz2RfbKFFJlCcsNGLiDK0P6JtVf3iPmyTgyDH4FIs8szgcs1qXbgd7+KkPC2fk2f51hUXxV9oA+oTeX3gYVWeEyD06uZ7LIWF4fNk6MxCm1ARLhS+U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746047321; c=relaxed/simple; bh=KaoNy/FCo//u2p7C9jfhJCjfObgsW/hQ6A6OtjnWw1o=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Lvjo7CtqKw3Bl2eG2wrRYIMkfviw8oLdJjjaLvsDaCrPV8DezmRLG8JPAyCZIiHP9MKfsPlwh5LtiLxPxmNrFzX+bqJp0TgL8bfHhdlqV+2vgWh5mNN12JlE+4o8wgLBgy3xzuWovyF1LqrLyKXY/tLMfrscwuDlqc4bn7yHn3o= 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=209.85.166.79 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-io1-f79.google.com with SMTP id ca18e2360f4ac-85b4dc23f03so54023039f.1 for ; Wed, 30 Apr 2025 14:08:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1746047319; x=1746652119; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=QTnMBaJFXK5ga1w9SxnRQaZ8GQQawtec3V6B5CkklOY=; b=EjJNAbkYonSt5ktfqJGRD9+/uUR2PWHhGmB7BjnzghJ9GXDmzQo+wjzRPENyXCNXM5 yFmcO/XK4gHFrWNtYDLN6JFcJmXrUb3feCf5sz1FXOKI/0QTk/giFXO8kJz45E+ZG2C5 psiPzecStTRvj6DJtHO/2xg+tE5oSthATt5nfQ+Rgg3SQx8sA8HpBEo173sLCEgefD6E jc4uvfw+52H7+iWSUoeHnJ/zNwSWoRpIbRVLEq3otGWVhvJDwFd0394VwF6X+RrPkvnU a6hIKCOm9rrfVjsK9QZJV2zOd/7hS5cQSQhJkmu2ZPnmMMXRFCsBBeHF/XkwM8A24Jgy Qgaw== X-Forwarded-Encrypted: i=1; AJvYcCU8Lxv2Z7CLSnF9zMHEJIkFQQbnMQGcljGBkPo/3XajCaxphVEJnPt9rv72tKx3UrhkRw3rqJaWdVfMZPc=@vger.kernel.org X-Gm-Message-State: AOJu0YxQ0rsHZoRU0IHvxv1U0ZGjc0ZCXPqdhPBNQZ/Z8gpr9a56ni0N tWb+1+7fObVPp/FzltwtubS3U9pohwq397zlGypg2YROTil3/Szh/bTIikNzK05QhK75uYaISG9 ESEXHRp3CBJ9n9uUiIz8jR/JoiFlsWg8asXE6fsehxD17qt5BcMlyX2k= X-Google-Smtp-Source: AGHT+IGJ44fCHhwr8RnQeFoGarLHxtw7eCyEBy13uem7qWN4GRxqc5+oI83n9w+JmrD/iZwLYf7pctFtT/HldQ2NKbvS+VwG/IyK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:380b:b0:3d9:3adb:e589 with SMTP id e9e14a558f8ab-3d9676b65e8mr54987485ab.4.1746047318725; Wed, 30 Apr 2025 14:08:38 -0700 (PDT) Date: Wed, 30 Apr 2025 14:08:38 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68129156.050a0220.3a872c.0009.GAE@google.com> Subject: [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbSplit (3) From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f1a3944c860b Merge tag 'bpf-fixes' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10d550d4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=90837c100b88a636 dashboard link: https://syzkaller.appspot.com/bug?extid=4c1966e88c28fa96e053 compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1250a270580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14d550d4580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-f1a3944c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fbe8c2bb0602/vmlinux-f1a3944c.xz kernel image: https://storage.googleapis.com/syzbot-assets/b4268e0ec733/bzImage-f1a3944c.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/10b2c382300e/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=14f49d74580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4c1966e88c28fa96e053@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2629:11 shift exponent 110 is too large for 32-bit type 'int' CPU: 0 UID: 0 PID: 5303 Comm: syz-executor956 Not tainted 6.15.0-rc3-syzkaller-00283-gf1a3944c860b #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x40 lib/ubsan.c:231 __ubsan_handle_shift_out_of_bounds+0x386/0x410 lib/ubsan.c:492 dbSplit+0x1f8/0x200 fs/jfs/jfs_dmap.c:2629 dbAdjCtl+0x34c/0xa20 fs/jfs/jfs_dmap.c:2521 dbAllocDmap fs/jfs/jfs_dmap.c:2032 [inline] dbAllocNear+0x2ee/0x3d0 fs/jfs/jfs_dmap.c:1243 dbAlloc+0x933/0xba0 fs/jfs/jfs_dmap.c:828 ea_write+0x374/0xdd0 fs/jfs/xattr.c:232 ea_put fs/jfs/xattr.c:619 [inline] __jfs_setxattr+0xa01/0x1120 fs/jfs/xattr.c:792 __jfs_xattr_set+0xda/0x170 fs/jfs/xattr.c:941 __vfs_setxattr+0x439/0x480 fs/xattr.c:200 __vfs_setxattr_noperm+0x12d/0x660 fs/xattr.c:234 vfs_setxattr+0x16b/0x2f0 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x274/0x600 fs/xattr.c:665 path_setxattrat+0x364/0x3a0 fs/xattr.c:713 __do_sys_lsetxattr fs/xattr.c:754 [inline] __se_sys_lsetxattr fs/xattr.c:750 [inline] __x64_sys_lsetxattr+0xbf/0xe0 fs/xattr.c:750 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdaa19996b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffe3d43d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 0000200000000200 RCX: 00007fdaa19996b9 RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000200000000040 RBP: 00002000000000c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000040 R13: 0031656c69662f2e R14: 0000000000000001 R15: 0000000000000001 ---[ end trace ]--- --- 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