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| author | Adam Borowski <kilobyte@angband.pl> | 2016-09-15 16:47:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-22 11:41:54 +0200 |
| commit | 669e0a51b1b50052b1615683cde64e1c28ae895f (patch) | |
| tree | 63c34a3da13db5cb27ae308aa462d8a1275f1464 /samples/trace_printk | |
| parent | d2ec3f77de8e67b7a3dab3ec827467e0fd797c86 (diff) | |
| download | op-kernel-dev-669e0a51b1b50052b1615683cde64e1c28ae895f.zip op-kernel-dev-669e0a51b1b50052b1615683cde64e1c28ae895f.tar.gz | |
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 'samples/trace_printk')
0 files changed, 0 insertions, 0 deletions
