Re: [PATCH] quota: Detect loops in quota tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Feb 09, 2024 at 12:22:50PM +0100, Jan Kara wrote:
> [...]
> @@ -613,15 +658,17 @@ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info,
>  
>  /* Find entry for given id in the tree */
>  static loff_t find_tree_dqentry(struct qtree_mem_dqinfo *info,
> -				struct dquot *dquot, uint blk, int depth)
> +				struct dquot *dquot, uint *blks, int depth)
>  {
>  	char *buf = kmalloc(info->dqi_usable_bs, GFP_NOFS);
>  	loff_t ret = 0;
>  	__le32 *ref = (__le32 *)buf;
> +	uint blk;
> +	int i;
>  
>  	if (!buf)
>  		return -ENOMEM;
> -	ret = read_blk(info, blk, buf);
> +	ret = read_blk(info, blks[depth], buf);
>  	if (ret < 0) {
>  		quota_error(dquot->dq_sb, "Can't read quota tree block %u",
>  			    blk);
                            ^^^
Coverity noticed this is used uninitialized. It should be "blks[depth]"
now, I think.

-Kees

-- 
Kees Cook




[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [NTFS 3]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [NTFS 3]     [Samba]     [Device Mapper]     [CEPH Development]

  Powered by Linux