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Jeongjun Park 23c4cb8a56 vt: prevent kernel-infoleak in con_font_get() ... commit f956052e00 upstream. font.data may not initialize all memory spaces depending on the implementation of vc->vc_sw->con_font_get. This may cause info-leak, so to prevent this, it is safest to modify it to initialize the allocated memory space to 0, and it generally does not affect the overall performance of the system. Cc: stable@vger.kernel.org Reported-by: syzbot+955da2d57931604ee691@syzkaller.appspotmail.com Fixes: 05e2600cb0 ("VT: Bump font size limitation to 64x128 pixels") Signed-off-by: Jeongjun Park <aha310510@gmail.com> Link: https://lore.kernel.org/r/20241010174619.59662-1-aha310510@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2024-11-08 16:26:48 +01:00
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.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
conmakehash.c	tty: vt: move conmakehash to drivers/tty/vt/ from scripts/	2019-12-17 14:42:46 +01:00
consolemap.c	tty/vt: consolemap: use E_TABSZ for the translations size	2022-06-27 14:17:12 +02:00
cp437.uni	tty: fix up a few remaining files without SPDX identifiers	2019-04-04 18:48:43 +02:00
defkeymap.c_shipped	tty/vt: defkeymap.c_shipped, little unification with loadkeys	2022-06-10 13:34:17 +02:00
defkeymap.map	tty: fix up a few remaining files without SPDX identifiers	2019-04-04 18:48:43 +02:00
keyboard.c	tty: Fix the keyboard led light display problem	2021-12-21 09:19:14 +01:00
Makefile	tty/vt: Makefile, add --unicode for loadkeys invocation	2022-06-10 13:34:18 +02:00
selection.c	tty/vt: consolemap: make parameters of inverse_translate() saner	2022-06-10 13:37:01 +02:00
vc_screen.c	vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF	2023-05-24 17:32:51 +01:00
vt.c	vt: prevent kernel-infoleak in con_font_get()	2024-11-08 16:26:48 +01:00
vt_ioctl.c	vt_ioctl: fix potential spectre v1 in VT_DISALLOCATE	2022-03-18 14:35:01 +01:00