From bedbef8ad3e75a304af6361af235302bcc61d06b Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 14 May 2024 06:39:01 +0000
Subject: [PATCH] 修改内核路径
---
kernel/fs/gfs2/glops.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/kernel/fs/gfs2/glops.c b/kernel/fs/gfs2/glops.c
index bf539ea..87f8110 100644
--- a/kernel/fs/gfs2/glops.c
+++ b/kernel/fs/gfs2/glops.c
@@ -405,6 +405,7 @@
static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
{
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
const struct gfs2_dinode *str = buf;
struct timespec64 atime;
u16 height, depth;
@@ -444,7 +445,7 @@
/* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
gfs2_set_inode_flags(&ip->i_inode);
height = be16_to_cpu(str->di_height);
- if (unlikely(height > GFS2_MAX_META_HEIGHT))
+ if (unlikely(height > sdp->sd_max_height))
goto corrupt;
ip->i_height = (u8)height;
@@ -454,6 +455,9 @@
ip->i_depth = (u8)depth;
ip->i_entries = be32_to_cpu(str->di_entries);
+ if (gfs2_is_stuffed(ip) && ip->i_inode.i_size > gfs2_max_stuffed_size(ip))
+ goto corrupt;
+
if (S_ISREG(ip->i_inode.i_mode))
gfs2_set_aops(&ip->i_inode);
--
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