Shigeru Yoshida a5a923038d fbdev: fbcon: Properly revert changes when vc_resize() failed ... fbcon_do_set_font() calls vc_resize() when font size is changed. However, if if vc_resize() failed, current implementation doesn't revert changes for font size, and this causes inconsistent state. syzbot reported unable to handle page fault due to this issue [1]. syzbot's repro uses fault injection which cause failure for memory allocation, so vc_resize() failed. This patch fixes this issue by properly revert changes for font related date when vc_resize() failed. Link: https://syzkaller.appspot.com/bug?id=3443d3a1fa6d964dd7310a0cb1696d165a3e07c4 [1] Reported-by: syzbot+a168dbeaaa7778273c1b@syzkaller.appspotmail.com Signed-off-by: Shigeru Yoshida <syoshida@redhat.com> Signed-off-by: Helge Deller <deller@gmx.de> CC: stable@vger.kernel.org # 5.15+		2022-08-26 19:56:18 +02:00
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backlight	- Core Frameworks	2022-08-06 10:33:34 -07:00
console	fbdev: Move fbdev drivers from strlcpy to strscpy	2022-08-24 22:06:15 +02:00
fbdev	fbdev: fbcon: Properly revert changes when vc_resize() failed	2022-08-26 19:56:18 +02:00
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aperture.c	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
display_timing.c
hdmi.c
Kconfig	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
Makefile	drm: Implement DRM aperture helpers under video/	2022-06-27 11:07:55 +02:00
of_display_timing.c	video: fbdev: of: display_timing: Remove a redundant zeroing of memory	2022-04-04 08:55:23 +02:00
of_videomode.c
vgastate.c
videomode.c