From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- scripts/extract-sys-certs.pl | 159 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100755 scripts/extract-sys-certs.pl (limited to 'scripts/extract-sys-certs.pl') diff --git a/scripts/extract-sys-certs.pl b/scripts/extract-sys-certs.pl new file mode 100755 index 000000000..fa8ab1511 --- /dev/null +++ b/scripts/extract-sys-certs.pl @@ -0,0 +1,159 @@ +#!/usr/bin/env perl +# SPDX-License-Identifier: GPL-2.0 +# +use warnings; +use strict; +use Math::BigInt; +use Fcntl "SEEK_SET"; + +die "Format: $0 [-s ] \n" + if ($#ARGV != 1 && $#ARGV != 3 || + $#ARGV == 3 && $ARGV[0] ne "-s"); + +my $sysmap = ""; +if ($#ARGV == 3) { + shift; + $sysmap = $ARGV[0]; + shift; +} + +my $vmlinux = $ARGV[0]; +my $keyring = $ARGV[1]; + +# +# Parse the vmlinux section table +# +open FD, "objdump -h $vmlinux |" || die $vmlinux; +my @lines = ; +close(FD) || die $vmlinux; + +my @sections = (); + +foreach my $line (@lines) { + chomp($line); + if ($line =~ /\s*([0-9]+)\s+(\S+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+([0-9a-f]+)\s+2[*][*]([0-9]+)/ + ) { + my $seg = $1; + my $name = $2; + my $len = Math::BigInt->new("0x" . $3); + my $vma = Math::BigInt->new("0x" . $4); + my $lma = Math::BigInt->new("0x" . $5); + my $foff = Math::BigInt->new("0x" . $6); + my $align = 2 ** $7; + + push @sections, { name => $name, + vma => $vma, + len => $len, + foff => $foff }; + } +} + +print "Have $#sections sections\n"; + +# +# Try and parse the vmlinux symbol table. If the vmlinux file has been created +# from a vmlinuz file with extract-vmlinux then the symbol table will be empty. +# +open FD, "nm $vmlinux 2>/dev/null |" || die $vmlinux; +@lines = ; +close(FD) || die $vmlinux; + +my %symbols = (); +my $nr_symbols = 0; + +sub parse_symbols(@) { + foreach my $line (@_) { + chomp($line); + if ($line =~ /([0-9a-f]+)\s([a-zA-Z])\s(\S+)/ + ) { + my $addr = "0x" . $1; + my $type = $2; + my $name = $3; + + $symbols{$name} = $addr; + $nr_symbols++; + } + } +} +parse_symbols(@lines); + +if ($nr_symbols == 0 && $sysmap ne "") { + print "No symbols in vmlinux, trying $sysmap\n"; + + open FD, "<$sysmap" || die $sysmap; + @lines = ; + close(FD) || die $sysmap; + parse_symbols(@lines); +} + +die "No symbols available\n" + if ($nr_symbols == 0); + +print "Have $nr_symbols symbols\n"; + +die "Can't find system certificate list" + unless (exists($symbols{"__cert_list_start"}) && + exists($symbols{"system_certificate_list_size"})); + +my $start = Math::BigInt->new($symbols{"__cert_list_start"}); +my $end; +my $size; +my $size_sym = Math::BigInt->new($symbols{"system_certificate_list_size"}); + +open FD, "<$vmlinux" || die $vmlinux; +binmode(FD); + +my $s = undef; +foreach my $sec (@sections) { + my $s_name = $sec->{name}; + my $s_vma = $sec->{vma}; + my $s_len = $sec->{len}; + my $s_foff = $sec->{foff}; + my $s_vend = $s_vma + $s_len; + + next unless ($start >= $s_vma); + next if ($start >= $s_vend); + + die "Certificate list size was not found on the same section\n" + if ($size_sym < $s_vma || $size_sym > $s_vend); + + die "Cert object in multiple sections: ", $s_name, " and ", $s->{name}, "\n" + if ($s); + + my $size_off = $size_sym -$s_vma + $s_foff; + my $packed; + die $vmlinux if (!defined(sysseek(FD, $size_off, SEEK_SET))); + sysread(FD, $packed, 8); + $size = unpack 'L!', $packed; + $end = $start + $size; + + printf "Have %u bytes of certs at VMA 0x%x\n", $size, $start; + + die "Cert object partially overflows section $s_name\n" + if ($end > $s_vend); + + $s = $sec; +} + +die "Cert object not inside a section\n" + unless ($s); + +print "Certificate list in section ", $s->{name}, "\n"; + +my $foff = $start - $s->{vma} + $s->{foff}; + +printf "Certificate list at file offset 0x%x\n", $foff; + +die $vmlinux if (!defined(sysseek(FD, $foff, SEEK_SET))); +my $buf = ""; +my $len = sysread(FD, $buf, $size); +die "$vmlinux" if (!defined($len)); +die "Short read on $vmlinux\n" if ($len != $size); +close(FD) || die $vmlinux; + +open FD, ">$keyring" || die $keyring; +binmode(FD); +$len = syswrite(FD, $buf, $size); +die "$keyring" if (!defined($len)); +die "Short write on $keyring\n" if ($len != $size); +close(FD) || die $keyring; -- cgit v1.3.1