| Message ID | 20240605012335.44086-1-lizhi.xu@windriver.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [V6] fs/ext4: Filesystem without casefold feature cannot be mounted with spihash | expand |
On Wed, 05 Jun 2024 09:23:35 +0800, Lizhi Xu wrote: > When mounting the ext4 filesystem, if the default hash version is set to > DX_HASH_SIPHASH but the casefold feature is not set, exit the mounting. > > Applied, thanks! [1/1] fs/ext4: Filesystem without casefold feature cannot be mounted with spihash commit: 985b67cd86392310d9e9326de941c22fc9340eec Best regards,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c682fb927b64..d0645af3e66e 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3593,6 +3593,14 @@ int ext4_feature_set_ok(struct super_block *sb, int readonly) "mounted without CONFIG_UNICODE"); return 0; } +#else + if (EXT4_SB(sb)->s_es->s_def_hash_version == DX_HASH_SIPHASH && + !ext4_has_feature_casefold(sb)) { + ext4_msg(sb, KERN_ERR, + "Filesystem without casefold feature cannot be " + "mounted with spihash"); + return 0; + } #endif if (readonly)
When mounting the ext4 filesystem, if the default hash version is set to DX_HASH_SIPHASH but the casefold feature is not set, exit the mounting. Reported-by: syzbot+340581ba9dceb7e06fb3@syzkaller.appspotmail.com Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com> --- fs/ext4/super.c | 8 ++++++++ 1 file changed, 8 insertions(+)