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Fri, 09 Feb 2024 13:10:05 -0800 (PST) Date: Fri, 9 Feb 2024 13:10:03 -0800 In-Reply-To: <0000000000009c91ce060e87575b@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <0000000000009c91ce060e87575b@google.com> Message-ID: Subject: Re: [syzbot] [kvm?] KMSAN: uninit-value in em_ret_far From: Sean Christopherson To: syzbot Cc: bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, pbonzini@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="us-ascii" On Tue, Jan 09, 2024, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 2cf4f94d8e86 Merge tag 'scsi-fixes' of git://git.kernel.or.. > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=144e8d01e80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4a65fa9f077ead01 > dashboard link: https://syzkaller.appspot.com/bug?extid=579eb95e588b48b4499c > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/589557edbfd5/disk-2cf4f94d.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/f2480533f00e/vmlinux-2cf4f94d.xz > kernel image: https://storage.googleapis.com/syzbot-assets/9463e8eac2ed/bzImage-2cf4f94d.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+579eb95e588b48b4499c@syzkaller.appspotmail.com #syz fix: KVM: x86: Clean up partially uninitialized integer in emulate_pop()