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authorZhihao Cheng <chengzhihao1@huawei.com>2020-08-17 22:29:09 +0800
committerRichard Weinberger <richard@nod.at>2020-09-17 22:56:09 +0200
commitdd7db149bcd914db8fdeb19cd5597c0740121bc7 (patch)
tree42c4d735df65cc5879a0e9b9d832d8bf3b36bfb0 /fs/ubifs
parentd005f8c6588efcfbe88099b6edafc6f58c84a9c1 (diff)
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ubifs: ubifs_jnl_change_xattr: Remove assertion 'nlink > 0' for host inode
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 <kechengsong@huawei.com> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs')
-rw-r--r--fs/ubifs/journal.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index ed935aefe3e0..cb1fa0c37322 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -1800,7 +1800,6 @@ 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));