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AJvYcCVBjeHi6Lkf+L0Xw+XGiymEMUA1ENnV5V2QmK/tqCoeGAvN05kwWVe6tidtiUns/Ud/ZaCHMItuZsigD0U=@vger.kernel.org X-Gm-Message-State: AOJu0YwAhCxjptJitharT1d7d6YKuUgJC6iNDV5lYR+3Ip1yoGb4xnHt Mf6Z5FsdPUm/dHtS64bLyG+EhQmd3+rgGMY5u74lmeqeiBbFNtVrL1qvODreMPPOgEsDXK351NY UqbpfigsP34btJJZuFl8O4n+kd8JtpiY7egmXAFJ0n4Sj8+OXt2RRc96AErQ= X-Google-Smtp-Source: AGHT+IEn2iy03zAoER7fhAagB2X3tgSkQ4pMNqBWX0o7nANF/t35cPk7BhMK5Uk659GNlsCe1vfG1R/XR9Km2pqB+RIvXdMOiW6X Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:4010:b0:86d:71:d9a with SMTP id ca18e2360f4ac-879787b862emr869201339f.2.1752365190087; Sat, 12 Jul 2025 17:06:30 -0700 (PDT) Date: Sat, 12 Jul 2025 17:06:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6872f886.a70a0220.3b380f.000d.GAE@google.com> Subject: [syzbot] [kvmarm?] WARNING in pend_serror_exception From: syzbot To: catalin.marinas@arm.com, joey.gouly@arm.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, maz@kernel.org, oliver.upton@linux.dev, suzuki.poulose@arm.com, syzkaller-bugs@googlegroups.com, will@kernel.org, yuzenghui@huawei.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 15724a984643 Merge branch 'kvm-arm64/doublefault2' into kv.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git next console output: https://syzkaller.appspot.com/x/log.txt?x=123090f0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=82bd3cd421993314 dashboard link: https://syzkaller.appspot.com/bug?extid=1f6f096afda6f4f8f565 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1324fe8c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1206ed82580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-15724a98.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ec0f03d375a1/vmlinux-15724a98.xz kernel image: https://storage.googleapis.com/syzbot-assets/a36232f8c6dd/Image-15724a98.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1f6f096afda6f4f8f565@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3603 at arch/arm64/kvm/inject_fault.c:71 pend_serror_exception+0x19c/0x5ac arch/arm64/kvm/inject_fault.c:71 Modules linked in: CPU: 0 UID: 0 PID: 3603 Comm: syz.2.16 Not tainted 6.16.0-rc3-syzkaller-g15724a984643 #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 81402009 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : pend_serror_exception+0x19c/0x5ac arch/arm64/kvm/inject_fault.c:71 lr : pend_serror_exception+0x19c/0x5ac arch/arm64/kvm/inject_fault.c:71 sp : ffff80008e807930 x29: ffff80008e807930 x28: d7f0000016ae8028 x27: 0000000000000001 x26: 0000000000000000 x25: 0000000000000001 x24: 00000000000000d7 x23: d7f0000016ae82a8 x22: 00000000000000d7 x21: d7f0000016ae8e81 x20: 0000000000000007 x19: efff800000000000 x18: 0000000000000000 x17: 000000000000005a x16: ffff800080011d9c x15: 0000000020000200 x14: ffffffffffffffff x13: 0000000000000028 x12: 0000000000000081 x11: 81f000001f049564 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : 81f000001f048000 x7 : ffff800080b08704 x6 : ffff80008e807a88 x5 : ffff80008e807a88 x4 : 0000000000000001 x3 : ffff8000801a2e80 x2 : 0000000000000000 x1 : 0000000000000002 x0 : 0000000000000000 Call trace: pend_serror_exception+0x19c/0x5ac arch/arm64/kvm/inject_fault.c:71 (P) kvm_inject_serror_esr+0x274/0xe40 arch/arm64/kvm/inject_fault.c:330 __kvm_arm_vcpu_set_events+0x1d4/0x238 arch/arm64/kvm/guest.c:-1 kvm_arm_vcpu_set_events arch/arm64/kvm/arm.c:1698 [inline] kvm_arch_vcpu_ioctl+0xed8/0x16b0 arch/arm64/kvm/arm.c:1810 kvm_vcpu_ioctl+0x5c4/0xc2c virt/kvm/kvm_main.c:4632 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x18c/0x244 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x90/0x2b4 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x180/0x2f4 arch/arm64/kernel/syscall.c:132 do_el0_svc+0x58/0x74 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x160 arch/arm64/kernel/entry-common.c:767 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 2728 hardirqs last enabled at (2727): [] __raw_read_unlock_irqrestore include/linux/rwlock_api_smp.h:241 [inline] hardirqs last enabled at (2727): [] _raw_read_unlock_irqrestore+0x44/0xbc kernel/locking/spinlock.c:268 hardirqs last disabled at (2728): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:511 softirqs last enabled at (2702): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2700): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup