From: "Jiri Slaby (SUSE)" jirislaby@kernel.org
[ Upstream commit 0e6a92f67c8a94707f7bb27ac29e2bdf3e7c167d ]
The if (c >= 20 && c <= 0x3f) test added in commit 7a99565f8732 is wrong. 20 is DC4 in ascii and it makes no sense to consider that as the bottom limit. Instead, it should be 0x20 as in the other test in the commit above. This is supposed to NOT change anything as we handle interesting 20-0x20 asciis far before this if.
So for sakeness, change to 0x20 (which is SPACE).
Signed-off-by: "Jiri Slaby (SUSE)" jirislaby@kernel.org Fixes: 7a99565f8732 ("vt: ignore csi sequences with intermediate characters.") Cc: Martin Hostettler textshell@uchuujin.de Link: https://lore.kernel.org/all/ZaP45QY2WEsDqoxg@neutronstar.dyndns.org/ Tested-by: Helge Deller deller@gmx.de # parisc STI console Link: https://lore.kernel.org/r/20240122110401.7289-4-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/vt/vt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c index 0252c0562dbc8..df645d127e401 100644 --- a/drivers/tty/vt/vt.c +++ b/drivers/tty/vt/vt.c @@ -2516,7 +2516,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) } return; case EScsiignore: - if (c >= 20 && c <= 0x3f) + if (c >= 0x20 && c <= 0x3f) return; vc->vc_state = ESnormal; return;