From: Yongpeng Yang yangyongpeng@xiaomi.com
sb_min_blocksize() may return 0. Check its return value to avoid opt->blocksize and sb->s_blocksize is 0.
Cc: stable@vger.kernel.org # v6.15 Fixes: 1b17a46c9243e9 ("isofs: convert isofs to use the new mount API") Reviewed-by: Jan Kara jack@suse.cz Signed-off-by: Yongpeng Yang yangyongpeng@xiaomi.com --- fs/isofs/inode.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 6f0e6b19383c..ad3143d4066b 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -610,6 +610,11 @@ static int isofs_fill_super(struct super_block *s, struct fs_context *fc) goto out_freesbi; } opt->blocksize = sb_min_blocksize(s, opt->blocksize); + if (!opt->blocksize) { + printk(KERN_ERR + "ISOFS: unable to set blocksize\n"); + goto out_freesbi; + }
sbi->s_high_sierra = 0; /* default is iso9660 */ sbi->s_session = opt->session;