Tetsuo Handa a7acb61428 pstore: Fix warning in pstore_kill_sb() ... commit 9c7d83ae6ba67d6c6199cce24573983db3b56332 upstream. 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. [1] https://syzkaller.appspot.com/bug?id=6abacb8da5137cb47a416f2bef95719ed60508a0 Reported-by: syzbot <syzbot+d0cf0ad6513e9a1da5df@syzkaller.appspotmail.com> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210214031307.57903-1-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-03-25 09:04:08 +01:00
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blk.c
ftrace.c
inode.c	pstore: Fix warning in pstore_kill_sb()	2021-03-25 09:04:08 +01:00
internal.h
Kconfig
Makefile
platform.c	pstore: Fix typo in compression option name	2021-03-04 11:38:33 +01:00
pmsg.c
ram_core.c
ram.c
zone.c