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reiserfs: Fix memory leak of journal device string
commit5474ca7da6
upstream. When a filesystem is mounted with jdev mount option, we store the journal device name in an allocated string in superblock. However we fail to ever free that string. Fix it. Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com Fixes:c3aa077648
("reiserfs: Properly display mount options in /proc/mounts") CC: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -629,6 +629,7 @@ static void reiserfs_put_super(struct super_block *s)
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reiserfs_write_unlock(s);
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mutex_destroy(&REISERFS_SB(s)->lock);
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destroy_workqueue(REISERFS_SB(s)->commit_wq);
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kfree(REISERFS_SB(s)->s_jdev);
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kfree(s->s_fs_info);
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s->s_fs_info = NULL;
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}
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@ -2240,6 +2241,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
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kfree(qf_names[j]);
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}
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#endif
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kfree(sbi->s_jdev);
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kfree(sbi);
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s->s_fs_info = NULL;
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