linux-kernel - fs/ufs/inode.c:817: warning: array subscript is above array bounds

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 31 Jan 2007 09:08:16 +0000
From:	"d binderman" <dcb314@...mail.com>
To:	linux-kernel@...r.kernel.org
Subject: fs/ufs/inode.c:817: warning: array subscript is above array bounds


Hello there,

I just tried to compile Linux kernel 2.6.19.2 with the
new GNU C compiler version 4.3 snapshot 20070126.

The compiler said

fs/ufs/inode.c:817: warning: array subscript is above array bounds

The source code is

        for (i = 0; i < (UFS_NDADDR + UFS_NINDIR); i++)
            ufs_inode->ui_u2.ui_addr.ui_db[i] = ufsi->i_u1.i_data[i];

but

./include/linux/ufs_fs.h:                       __fs32  ui_db[UFS_NDADDR];/* 
0x28 data blocks */
./include/linux/ufs_fs.h:                       __fs64     
ui_db[UFS_NDADDR]; /* 112: Direct disk blocks. */

and

        __fs32  i_data[15];

and

#define UFS_NDADDR 12
#define UFS_NINDIR 3

so the kernel seems to be trying to write fifteen bytes into an array only 
twelve
bytes in size. Suggest code rework.


Regards

David Binderman

_________________________________________________________________
Find Love This New Year With match.com! http://msnuk.match.com

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/