Changing xattr of a temp file will trigger following assertion failed and make ubifs turn into readonly filesystem: ubifs_assert_failed [ubifs]: UBIFS assert failed: host->i_nlink > 0, in fs/ubifs/journal.c:1801
Reproducer: 1. fd = open(__O_TMPFILE) 2. fsetxattr(fd, key, value2, XATTR_CREATE) 3. fsetxattr(fd, key, value2, XATTR_REPLACE) Fix this by removing assertion 'nlink > 0' for host inode. Reported-by: Chengsong Ke <kechengs...@huawei.com> Signed-off-by: Zhihao Cheng <chengzhih...@huawei.com> --- fs/ubifs/journal.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index 4a5b06f8d812..0b9f686d1d42 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -1798,7 +1798,6 @@ int ubifs_jnl_change_xattr(struct ubifs_info *c, const struct inode *inode, u8 hash[UBIFS_HASH_ARR_SZ]; dbg_jnl("ino %lu, ino %lu", host->i_ino, inode->i_ino); - ubifs_assert(c, host->i_nlink > 0); ubifs_assert(c, inode->i_nlink > 0); ubifs_assert(c, mutex_is_locked(&host_ui->ui_mutex)); -- 2.25.4