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* [PATCH] udf: fix nls leak on udf_fill_super() failure
@ 2026-02-11 20:18 Al Viro
  2026-02-12  9:59 ` Jan Kara
  0 siblings, 1 reply; 2+ messages in thread
From: Al Viro @ 2026-02-11 20:18 UTC (permalink / raw)
  To: Jan Kara; +Cc: linux-fsdevel, Eric Sandeen

[in viro/vfs.git #fixes at the moment; if you want to put it through your
tree, just say so]

On all failure exits that go to error_out there we have already moved the
nls reference from uopt->nls_map to sbi->s_nls_map, leaving NULL behind.
    
Fixes: c4e89cc674ac ("udf: convert to new mount API")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
diff --git a/fs/udf/super.c b/fs/udf/super.c
index b2f168b0a0d1..97a51c64ad48 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -2320,7 +2320,7 @@ static int udf_fill_super(struct super_block *sb, struct fs_context *fc)
 
 error_out:
 	iput(sbi->s_vat_inode);
-	unload_nls(uopt->nls_map);
+	unload_nls(sbi->s_nls_map);
 	if (lvid_open)
 		udf_close_lvid(sb);
 	brelse(sbi->s_lvid_bh);

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] udf: fix nls leak on udf_fill_super() failure
  2026-02-11 20:18 [PATCH] udf: fix nls leak on udf_fill_super() failure Al Viro
@ 2026-02-12  9:59 ` Jan Kara
  0 siblings, 0 replies; 2+ messages in thread
From: Jan Kara @ 2026-02-12  9:59 UTC (permalink / raw)
  To: Al Viro; +Cc: Jan Kara, linux-fsdevel, Eric Sandeen

On Wed 11-02-26 20:18:45, Al Viro wrote:
> [in viro/vfs.git #fixes at the moment; if you want to put it through your
> tree, just say so]
> 
> On all failure exits that go to error_out there we have already moved the
> nls reference from uopt->nls_map to sbi->s_nls_map, leaving NULL behind.
>     
> Fixes: c4e89cc674ac ("udf: convert to new mount API")
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Thanks for catching this! It's fine if you merge it so feel free to add:

Acked-by: Jan Kara <jack@suse.cz>

								Honza

> ---
> diff --git a/fs/udf/super.c b/fs/udf/super.c
> index b2f168b0a0d1..97a51c64ad48 100644
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -2320,7 +2320,7 @@ static int udf_fill_super(struct super_block *sb, struct fs_context *fc)
>  
>  error_out:
>  	iput(sbi->s_vat_inode);
> -	unload_nls(uopt->nls_map);
> +	unload_nls(sbi->s_nls_map);
>  	if (lvid_open)
>  		udf_close_lvid(sb);
>  	brelse(sbi->s_lvid_bh);
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2026-02-11 20:18 [PATCH] udf: fix nls leak on udf_fill_super() failure Al Viro
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