Hi, Please apply upstream commit b577d0cd2104 ("9p: missing chunk of "fs/9p: Don't update file type when updating file attributes"") to stable versions v4.9, v4.14, v4.19, v5.4, and v5.10. It fixes an issue found by syzbot: https://syzkaller.appspot.com/bug?id=7830d7214570b38391194d814a625dbbfd569eb4 The commit applies cleanly to all the versions listed above. Please also add: Reported-by: syzbot+16342c5db3ef64c0f60a@xxxxxxxxxxxxxxxxxxxxxxxxx Tested-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxxx> Thanks, Tadeusz