+Tom Rini Hi Nathan, On Fri, 9 Apr 2021 at 06:23, Nathan Chancellor <nathan@xxxxxxxxxx> wrote: > > Hi Simon, > > Apologies if this is not the proper way to report a regression, this is my first > time interacting with the U-Boot community. > > My distribution updated the uboot-tools package to 2021.04, which broke my > Linux kernel builds for ARCH=mips: > > $ make -skj"$(nproc)" ARCH=mips CROSS_COMPILE=mips-linux- defconfig all > ... > /usr/bin/mkimage: verify_header failed for FIT Image support with exit code 1 > make[2]: *** [arch/mips/boot/Makefile:173: arch/mips/boot/vmlinux.gz.itb] Error 1 > ... > > I bisected this down to your commit: > > 3f04db891a353f4b127ed57279279f851c6b4917 is the first bad commit > commit 3f04db891a353f4b127ed57279279f851c6b4917 > Author: Simon Glass <sjg@xxxxxxxxxxxx> > Date: Mon Feb 15 17:08:12 2021 -0700 > > image: Check for unit addresses in FITs > > Using unit addresses in a FIT is a security risk. Add a check for this > and disallow it. > > CVE-2021-27138 > > Signed-off-by: Simon Glass <sjg@xxxxxxxxxxxx> > Reported-by: Bruce Monroe <bruce.monroe@xxxxxxxxx> > Reported-by: Arie Haenel <arie.haenel@xxxxxxxxx> > Reported-by: Julien Lenoir <julien.lenoir@xxxxxxxxx> > > common/image-fit.c | 56 +++++++++++++++++++++++++++++++++++++++++---- > test/py/tests/test_vboot.py | 9 ++++---- > 2 files changed, 57 insertions(+), 8 deletions(-) > bisect run success > > $ git bisect log > # bad: [e9c99db7787e3b5c2ef05701177c43ed1c023c27] Merge branch '2021-04-07-CI-improvements' > # good: [c4fddedc48f336eabc4ce3f74940e6aa372de18c] Prepare v2021.01 > git bisect start 'e9c99db7787e3b5c2ef05701177c43ed1c023c27' 'v2021.01' > # good: [b2c86f596cfb1ea9f7f5138f72f1c5c49e3ae3f1] arm: dts: r8a774a1: Import DTS queued for Linux 5.12-rc1 > git bisect good b2c86f596cfb1ea9f7f5138f72f1c5c49e3ae3f1 > # bad: [74f4929c2c73beb595faf7d5d9bb6a78d710c2fd] ddr: marvell: axp: fix array types have different bounds warning > git bisect bad 74f4929c2c73beb595faf7d5d9bb6a78d710c2fd > # bad: [cbe607b920bc0827d8fe379ed4f5ae4e2058513e] Merge tag 'xilinx-for-v2021.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze > git bisect bad cbe607b920bc0827d8fe379ed4f5ae4e2058513e > # good: [d5f3aadacbc63df3b690d6fd9f0aa3f575b43356] test: Add tests for the 'evil' vboot attacks > git bisect good d5f3aadacbc63df3b690d6fd9f0aa3f575b43356 > # bad: [a1a652e8016426e2d67148cab225cd5ec45189fb] Merge tag 'mmc-2021-2-19' of https://gitlab.denx.de/u-boot/custodians/u-boot-mmc > git bisect bad a1a652e8016426e2d67148cab225cd5ec45189fb > # bad: [aeedeae40733131467de72c68e639cf9d795e059] spl: fit: Replace #ifdef blocks with more readable constructs > git bisect bad aeedeae40733131467de72c68e639cf9d795e059 > # bad: [eb5fd9e46c11ea41430d9c5bcc81d4583424216e] usb: kbd: destroy device after console is stopped > git bisect bad eb5fd9e46c11ea41430d9c5bcc81d4583424216e > # bad: [99cb2b996bd649d98069a95941beaaade0a4447a] stdio: Split out nulldev_register() and move it under #if > git bisect bad 99cb2b996bd649d98069a95941beaaade0a4447a > # bad: [3f04db891a353f4b127ed57279279f851c6b4917] image: Check for unit addresses in FITs > git bisect bad 3f04db891a353f4b127ed57279279f851c6b4917 > # good: [6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01] image: Add an option to do a full check of the FIT > git bisect good 6f3c2d8aa5e6cbd80b5e869bbbddecb66c329d01 > # good: [124c255731c76a2b09587378b2bcce561bcd3f2d] libfdt: Check for multiple/invalid root nodes > git bisect good 124c255731c76a2b09587378b2bcce561bcd3f2d > # first bad commit: [3f04db891a353f4b127ed57279279f851c6b4917] image: Check for unit addresses in FITs > > Is this an actual regression or is this now the expected behavior? I have added > Thomas and the linux-mips mailing list to take a look and see if the Linux > kernel needs to have its sources updated. It is expected. See the code in that commit: /* * U-Boot stopped using unit addressed in 2017. Since libfdt * can match nodes ignoring any unit address, signature * verification can see the wrong node if one is inserted with * the same name as a valid node but with a unit address * attached. Protect against this by disallowing unit addresses. */ if (!ret && CONFIG_IS_ENABLED(FIT_SIGNATURE)) { ret = fdt_check_no_at(fit, 0); if (ret) { log_debug("FIT check error %d\n", ret); return ret; } } Possibly you are using @ nodes in your FIT files in the kernel. Is it possible to use a hyphen instead? Regards, Simon
