On Sun, 14 Feb 2021 12:13:07 +0900, Tetsuo Handa wrote: > syzbot is hitting WARN_ON(pstore_sb != sb) at pstore_kill_sb() [1], for the > assumption that pstore_sb != NULL is wrong because pstore_fill_super() will > not assign pstore_sb = sb when new_inode() for d_make_root() returned NULL > (due to memory allocation fault injection). > > Since mount_single() calls pstore_kill_sb() when pstore_fill_super() > failed, pstore_kill_sb() needs to be aware of such failure path. > > [...]
Applied to for-next/pstore, thanks! [1/1] pstore: Fix warning in pstore_kill_sb() https://git.kernel.org/kees/c/9c7d83ae6ba6 -- Kees Cook