diff options
| author | Nicolas Pitre <nico@fluxnic.net> | 2020-05-02 11:01:07 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-14 07:58:19 +0200 |
| commit | 8ca4302bc663b8dde7c278bcf9db2fdd1b387168 (patch) | |
| tree | b768a587ab6d027b04f942c72c7b6e7f4a0e4c88 /include/uapi/misc | |
| parent | f4d20b01eaf68ca1af79532a731e48fdd3352bf9 (diff) | |
vt: fix unicode console freeing with a common interface
[ Upstream commit 57d38f26d81e4275748b69372f31df545dcd9b71 ]
By directly using kfree() in different places we risk missing one if
it is switched to using vfree(), especially if the corresponding
vmalloc() is hidden away within a common abstraction.
Oh wait, that's exactly what happened here.
So let's fix this by creating a common abstraction for the free case
as well.
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Reported-by: syzbot+0bfda3ade1ee9288a1be@syzkaller.appspotmail.com
Fixes: 9a98e7a80f95 ("vt: don't use kmalloc() for the unicode screen buffer")
Cc: <stable@vger.kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2005021043110.2671@knanqh.ubzr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/uapi/misc')
0 files changed, 0 insertions, 0 deletions