linux-kernel - [CRASH][BISECTED] 6.4.1 crash in boot

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Message-ID: <9a8e34ad-8a8b-3830-4878-3c2c82e69dd9@alu.unizg.hr>
Date:   Sun, 2 Jul 2023 18:36:12 +0200
From:   Mirsad Goran Todorovac <mirsad.todorovac@....unizg.hr>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     linux-kbuild@...r.kernel.org, Kees Cook <keescook@...omium.org>
Subject: [CRASH][BISECTED] 6.4.1 crash in boot

Hi,

After new git pull the kernel in Torvalds tree with default debug config
failed to boot with error that occurs prior to mounting filesystems, so there
is no log safe for the screenshot(s) here:

[1] https://domac.alu.unizg.hr/~mtodorov/linux/crashes/2023-07-02/

Bisect shows the first bad commit is 2d47c6956ab3 (v6.4-rc2-1-g2d47c6956ab3):

# good: [98be618ad03010b1173fc3c35f6cbb4447ee2b07] Merge tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next
git bisect good 98be618ad03010b1173fc3c35f6cbb4447ee2b07
# bad: [f4a0659f823e5a828ea2f45b4849ea8e2dd2984c] drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy
git bisect bad f4a0659f823e5a828ea2f45b4849ea8e2dd2984c
.
.
.
# bad: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC
git bisect bad 2d47c6956ab3c8b580a59d7704aab3e2a4882b6c
# first bad commit: [2d47c6956ab3c8b580a59d7704aab3e2a4882b6c] ubsan: Tighten UBSAN_BOUNDS on GCC

The architecture is Ubuntu 22.04 with lshw and config give in the attachment.

Best regards,
Mirsad Todorovac
Download attachment "config-6.4.0-060400-generic.xz" of type "application/x-xz" (57448 bytes)

Download attachment "lshw.txt.xz" of type "application/x-xz" (6500 bytes)