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xfs: explicitly pass buffer size to xfs_corruption_error 

Explicitly pass the buffer length to xfs_corruption_error() instead of
assuming XFS_CORRUPTION_DUMP_LEN so that we avoid dumping off the end
of the buffer.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-06-04 10:23:54 -07:00
parent 85ae01098c
commit 2551a53053
9 changed files with 31 additions and 19 deletions
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3
fs/xfs/libxfs/xfs_btree.c
View File

@ -1932,7 +1932,8 @@ xfs_btree_lookup(
if (level != 0 || cur->bc_nlevels != 1) {
XFS_CORRUPTION_ERROR(__func__,
XFS_ERRLEVEL_LOW,
cur->bc_mp, block);
cur->bc_mp, block,
sizeof(*block));
return -EFSCORRUPTED;
}

2
fs/xfs/libxfs/xfs_da_btree.c
View File

@ -306,7 +306,7 @@ xfs_da3_node_read(
break;
default:
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW,
tp->t_mountp, info);
tp->t_mountp, info, sizeof(*info));
xfs_trans_brelse(tp, *bpp);
*bpp = NULL;
return -EFSCORRUPTED;

5
fs/xfs/libxfs/xfs_dir2_data.c
View File

@ -251,7 +251,8 @@ xfs_dir3_data_check(
if (!fa)
return;
xfs_corruption_error(__func__, XFS_ERRLEVEL_LOW, dp->i_mount,
bp->b_addr, __FILE__, __LINE__, fa);
bp->b_addr, BBTOB(bp->b_length), __FILE__, __LINE__,
fa);
ASSERT(0);
}
#endif
@ -1157,7 +1158,7 @@ xfs_dir2_data_use_free(
return 0;
corrupt:
xfs_corruption_error(__func__, XFS_ERRLEVEL_LOW, args->dp->i_mount,
hdr, __FILE__, __LINE__, fa);
hdr, sizeof(*hdr), __FILE__, __LINE__, fa);
return -EFSCORRUPTED;
}

3
fs/xfs/libxfs/xfs_dir2_leaf.c
View File

@ -81,7 +81,8 @@ xfs_dir3_leaf_check(
if (!fa)
return;
xfs_corruption_error(__func__, XFS_ERRLEVEL_LOW, dp->i_mount,
bp->b_addr, __FILE__, __LINE__, fa);
bp->b_addr, BBTOB(bp->b_length), __FILE__, __LINE__,
fa);
ASSERT(0);
}
#else

3
fs/xfs/libxfs/xfs_dir2_node.c
View File

@ -84,7 +84,8 @@ xfs_dir3_leaf_check(
if (!fa)
return;
xfs_corruption_error(__func__, XFS_ERRLEVEL_LOW, dp->i_mount,
bp->b_addr, __FILE__, __LINE__, fa);
bp->b_addr, BBTOB(bp->b_length), __FILE__, __LINE__,
fa);
ASSERT(0);
}
#else

5
fs/xfs/xfs_attr_list.c
View File

@ -139,7 +139,8 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
((char *)sfe >= ((char *)sf + dp->i_afp->if_bytes)))) {
XFS_CORRUPTION_ERROR("xfs_attr_shortform_list",
XFS_ERRLEVEL_LOW,
context->dp->i_mount, sfe);
context->dp->i_mount, sfe,
sizeof(*sfe));
kmem_free(sbuf);
return -EFSCORRUPTED;
}
@ -241,7 +242,7 @@ xfs_attr_node_list_lookup(
if (magic != XFS_DA_NODE_MAGIC &&
magic != XFS_DA3_NODE_MAGIC) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
node);
node, sizeof(*node));
goto out_corruptbuf;
}

5
fs/xfs/xfs_error.c
View File

@ -334,13 +334,14 @@ xfs_corruption_error(
const char *tag,
int level,
struct xfs_mount *mp,
void *p,
void *buf,
size_t bufsize,
const char *filename,
int linenum,
xfs_failaddr_t failaddr)
{
if (level <= xfs_error_level)
xfs_hex_dump(p, XFS_CORRUPTION_DUMP_LEN);
xfs_hex_dump(buf, bufsize);
xfs_error_report(tag, level, mp, filename, linenum, failaddr);
xfs_alert(mp, "Corruption detected. Unmount and run xfs_repair");
}

9
fs/xfs/xfs_error.h
View File

@ -24,8 +24,9 @@ extern void xfs_error_report(const char *tag, int level, struct xfs_mount *mp,
const char *filename, int linenum,
xfs_failaddr_t failaddr);
extern void xfs_corruption_error(const char *tag, int level,
struct xfs_mount *mp, void *p, const char *filename,
int linenum, xfs_failaddr_t failaddr);
struct xfs_mount *mp, void *buf, size_t bufsize,
const char *filename, int linenum,
xfs_failaddr_t failaddr);
extern void xfs_buf_verifier_error(struct xfs_buf *bp, int error,
const char *name, void *buf, size_t bufsz,
xfs_failaddr_t failaddr);
@ -37,8 +38,8 @@ extern void xfs_inode_verifier_error(struct xfs_inode *ip, int error,
#define XFS_ERROR_REPORT(e, lvl, mp) \
xfs_error_report(e, lvl, mp, __FILE__, __LINE__, __return_address)
#define XFS_CORRUPTION_ERROR(e, lvl, mp, mem) \
xfs_corruption_error(e, lvl, mp, mem, \
#define XFS_CORRUPTION_ERROR(e, lvl, mp, buf, bufsize) \
xfs_corruption_error(e, lvl, mp, buf, bufsize, \
__FILE__, __LINE__, __return_address)
#define XFS_ERRLEVEL_OFF 0

15
fs/xfs/xfs_log_recover.c
View File

@ -3115,7 +3115,8 @@ xlog_recover_inode_pass2(
if ((ldip->di_format != XFS_DINODE_FMT_EXTENTS) &&
(ldip->di_format != XFS_DINODE_FMT_BTREE)) {
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(3)",
XFS_ERRLEVEL_LOW, mp, ldip);
XFS_ERRLEVEL_LOW, mp, ldip,
sizeof(*ldip));
xfs_alert(mp,
"%s: Bad regular inode log record, rec ptr "PTR_FMT", "
"ino ptr = "PTR_FMT", ino bp = "PTR_FMT", ino %Ld",
@ -3128,7 +3129,8 @@ xlog_recover_inode_pass2(
(ldip->di_format != XFS_DINODE_FMT_BTREE) &&
(ldip->di_format != XFS_DINODE_FMT_LOCAL)) {
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(4)",
XFS_ERRLEVEL_LOW, mp, ldip);
XFS_ERRLEVEL_LOW, mp, ldip,
sizeof(*ldip));
xfs_alert(mp,
"%s: Bad dir inode log record, rec ptr "PTR_FMT", "
"ino ptr = "PTR_FMT", ino bp = "PTR_FMT", ino %Ld",
@ -3139,7 +3141,8 @@ xlog_recover_inode_pass2(
}
if (unlikely(ldip->di_nextents + ldip->di_anextents > ldip->di_nblocks)){
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(5)",
XFS_ERRLEVEL_LOW, mp, ldip);
XFS_ERRLEVEL_LOW, mp, ldip,
sizeof(*ldip));
xfs_alert(mp,
"%s: Bad inode log record, rec ptr "PTR_FMT", dino ptr "PTR_FMT", "
"dino bp "PTR_FMT", ino %Ld, total extents = %d, nblocks = %Ld",
@ -3151,7 +3154,8 @@ xlog_recover_inode_pass2(
}
if (unlikely(ldip->di_forkoff > mp->m_sb.sb_inodesize)) {
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(6)",
XFS_ERRLEVEL_LOW, mp, ldip);
XFS_ERRLEVEL_LOW, mp, ldip,
sizeof(*ldip));
xfs_alert(mp,
"%s: Bad inode log record, rec ptr "PTR_FMT", dino ptr "PTR_FMT", "
"dino bp "PTR_FMT", ino %Ld, forkoff 0x%x", __func__,
@ -3162,7 +3166,8 @@ xlog_recover_inode_pass2(
isize = xfs_log_dinode_size(ldip->di_version);
if (unlikely(item->ri_buf[1].i_len > isize)) {
XFS_CORRUPTION_ERROR("xlog_recover_inode_pass2(7)",
XFS_ERRLEVEL_LOW, mp, ldip);
XFS_ERRLEVEL_LOW, mp, ldip,
sizeof(*ldip));
xfs_alert(mp,
"%s: Bad inode log record length %d, rec ptr "PTR_FMT,
__func__, item->ri_buf[1].i_len, item);