diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-03-01 08:47:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-03-01 08:47:19 -0800 |
| commit | 6e110580bc1ab84d02509750ce09277914174c6a (patch) | |
| tree | 087a50424b051ac9c2077a9e1b3b242324e89b03 /fs/jfs | |
| parent | e103ecedceb37b565962a199c75dd4df57742d50 (diff) | |
| parent | fad376fce0af58deebc5075b8539dc05bf639af3 (diff) | |
Merge tag 'jfs-6.3' of https://github.com/kleikamp/linux-shaggy
Pull jfs update from Dave Kleikamp:
"Just one simple sanity check"
* tag 'jfs-6.3' of https://github.com/kleikamp/linux-shaggy:
fs/jfs: fix shift exponent db_agl2size negative
Diffstat (limited to 'fs/jfs')
| -rw-r--r-- | fs/jfs/jfs_dmap.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c index 765838578a72..a3eb1e826947 100644 --- a/fs/jfs/jfs_dmap.c +++ b/fs/jfs/jfs_dmap.c @@ -193,7 +193,8 @@ int dbMount(struct inode *ipbmap) bmp->db_agwidth = le32_to_cpu(dbmp_le->dn_agwidth); bmp->db_agstart = le32_to_cpu(dbmp_le->dn_agstart); bmp->db_agl2size = le32_to_cpu(dbmp_le->dn_agl2size); - if (bmp->db_agl2size > L2MAXL2SIZE - L2MAXAG) { + if (bmp->db_agl2size > L2MAXL2SIZE - L2MAXAG || + bmp->db_agl2size < 0) { err = -EINVAL; goto err_release_metapage; } |