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authorAdam Borowski <kilobyte@angband.pl>2016-09-15 14:47:09 (GMT)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-22 09:41:54 (GMT)
commit669e0a51b1b50052b1615683cde64e1c28ae895f (patch)
tree63c34a3da13db5cb27ae308aa462d8a1275f1464 /drivers/oprofile
parentd2ec3f77de8e67b7a3dab3ec827467e0fd797c86 (diff)
downloadlinux-669e0a51b1b50052b1615683cde64e1c28ae895f.tar.xz
vt: Fix a read-past-array in vc_t416_color().
This makes it show up on UBSAN: perl -e 'for (0..15) {my @x=("0")x$_;push @x,qw(38 2 64 128 192 4);printf "\e[%smAfter %d zeroes.\e[0m\n", join(";",@x[0..($_+5<15?$_+5:15)]), $_}' Seems harmless: if you can programmatically read attributes of a vt character (/dev/vcsa*), multiple probes can obtain parts of vt_mode then lowest byte (5th on 64-bit big-endian) of a pointer. Signed-off-by: Adam Borowski <kilobyte@angband.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/oprofile')
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