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AHgh+RrrjqNUPzrrfjI4zcor5IL46ldJdaYx99/OJBTSR2rPIAZUTuA5Yp3+lZ2BIn5E0fU3QqcYkH6E4wmnGqQ=@vger.kernel.org X-Gm-Message-State: AOJu0YwWs5qkXyA+KceZ6PKuFqMh4SpFkjLdNeEr2oF/NLdDNdtUb2dC BB061DuSjivWdvsnlqzvfrUutw7pgHOAnCnCkfRPUMwJrNttxGsOXT3u/zD6nBVT1DXGDKtBNI4 vKLfjN3T4cUu/Admg3AGWdWWBb2xOjFki23mhzBnwVAdcDBGAQ6zDTx++V/c= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:80c5:b0:6a3:78a2:cf3c with SMTP id 006d021491bc7-6a536aec0c4mr9334271eaf.64.1784644803009; Tue, 21 Jul 2026 07:40:03 -0700 (PDT) Date: Tue, 21 Jul 2026 07:40:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a5f84c2.42649fcc.22d900.0004.GAE@google.com> Subject: Re: [syzbot] [kvm-x86?] KASAN: use-after-free Read in kvm_setup_guest_pvclock From: syzbot To: halves@igalia.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: 0000:00:00.0: Limiting direct PCI/PCI transfers [ 4.569474][ T1] PCI: CLS 0 bytes, default 64 [ 4.571889][ T1] PCI-DMA: Using software bounce buffering for IO (SWI= OTLB) [ 4.571911][ T1] software IO TLB: mapped [mem 0x00000000b4600000-0x00= 000000b8600000] (64MB) [ 4.576668][ T1] ACPI: bus type thunderbolt registered [ 4.604809][ T69] kworker/u8:4 (69) used greatest stack depth: 27824 b= ytes left [ 4.605349][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters= , 10737418240 ms ovfl timer [ 4.667843][ T68] kworker/u8:3 (68) used greatest stack depth: 27600 b= ytes left [ 4.693093][ T1] kvm_amd: CPU 0 isn't AMD or Hygon [ 4.693126][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycle= s: 0x1fb7086095e, max_idle_ns: 440795277026 ns [ 4.693805][ T1] clocksource: Switched to clocksource tsc [ 4.735937][ T78] kworker/u8:1 (78) used greatest stack depth: 27240 b= ytes left [ 4.775502][ T1] Initialise system trusted keyrings [ 4.776914][ T94] kworker/u8:4 (94) used greatest stack depth: 26856 b= ytes left [ 4.778809][ T1] workingset: timestamp_bits=3D40 (anon: 35) max_order= =3D21 bucket_order=3D0 (anon: 0) [ 4.794347][ T1] DLM installed [ 4.803270][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 4.820766][ T1] NFS: Registering the id_resolver key type [ 4.820934][ T1] Key type id_resolver registered [ 4.820948][ T1] Key type id_legacy registered [ 4.821314][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Regist= ering... [ 4.821516][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Drive= r Registering... [ 4.828086][ T1] smbdirect: subsystem loading... [ 4.842980][ T1] smbdirect: subsystem loaded [ 4.891092][ T1] Key type cifs.spnego registered [ 4.891558][ T1] Key type cifs.idmap registered [ 4.906529][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 4.906543][ T1] ntfs3: Read-only LZX/Xpress compression included [ 4.907114][ T1] jffs2: version 2.2. (NAND) (SUMMARY) =C2=A9 2001-20= 06 Red Hat, Inc. [ 4.911063][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 4.911761][ T1] QNX4 filesystem 0.2.3 registered. [ 4.911930][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 4.913356][ T1] fuse: init (API version 7.45) [ 4.922704][ T1] orangefs_debugfs_init: called with debug mask: :none= : :0: [ 4.926315][ T1] orangefs_init: module version upstream loaded [ 4.927651][ T1] JFS: nTxBlock =3D 8192, nTxLock =3D 65536 [ 4.944092][ T1] SGI XFS with ACLs, security attributes, realtime, qu= ota, no debug enabled [ 4.957411][ T1] 9p: Installing v9fs 9p2000 file system support [ 4.991879][ T1] NILFS version 2 loaded [ 4.991899][ T1] befs: version: 0.9.3 [ 4.993486][ T1] ocfs2: Registered cluster interface o2cb [ 4.995705][ T1] ocfs2: Registered cluster interface user [ 5.006868][ T1] OCFS2 User DLM kernel interface loaded [ 5.046841][ T1] gfs2: GFS2 installed [ 5.068429][ T1] ceph: loaded (mds proto 32) [ 5.102190][ T1] NET: Registered PF_ALG protocol family [ 5.103074][ T1] async_tx: api initialized (async) [ 5.103141][ T1] Key type asymmetric registered [ 5.103216][ T1] Asymmetric key parser 'x509' registered [ 5.103231][ T1] Asymmetric key parser 'pkcs8' registered [ 5.103244][ T1] Key type pkcs7_test registered [ 5.105026][ T1] Block layer SCSI generic (bsg) driver version 0.4 lo= aded (major 239) [ 5.107338][ T1] io scheduler mq-deadline registered [ 5.107356][ T1] io scheduler kyber registered [ 5.107949][ T1] io scheduler bfq registered [ 5.110066][ T1] raid6: skipped pq benchmark and selected avx2x4 [ 5.162638][ T1] input: Power Button as /devices/platform/LNXPWRBN:00= /input/input0 [ 5.164944][ T1] ACPI: button: Power Button [PWRF] [ 5.167933][ T1] input: Sleep Button as /devices/platform/LNXSLPBN:00= /input/input1 [ 5.172152][ T1] ACPI: button: Sleep Button [SLPF] [ 5.227446][ T156] kworker/u8:3 (156) used greatest stack depth: 26464 = bytes left [ 5.249131][ T192] kworker/u8:7 (192) used greatest stack depth: 26184 = bytes left [ 5.258909][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00 [ 5.298972][ T10] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 5.299187][ T10] virtio-pci 0000:00:03.0: virtio_pci: leaving for leg= acy driver [ 5.343562][ T10] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 5.343730][ T10] virtio-pci 0000:00:04.0: virtio_pci: leaving for leg= acy driver [ 5.382813][ T10] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 5.382940][ T10] virtio-pci 0000:00:06.0: virtio_pci: leaving for leg= acy driver [ 5.411801][ T10] virtio-pci 0000:00:07.0: virtio_pci: leaving for leg= acy driver [ 6.372357][ T1] N_HDLC line discipline registered with maxframe=3D40= 96 [ 6.375656][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enab= led [ 6.396359][ T1] 00:02: ttyS0 I/O:0x3f8 (irq =3D 4, base_baud =3D 115= 200) is a 16550A [ 6.424359][ T1] 00:03: ttyS1 I/O:0x2f8 (irq =3D 3, base_baud =3D 115= 200) is a 16550A [ 6.452988][ T1] 00:04: ttyS2 I/O:0x3e8 (irq =3D 6, base_baud =3D 115= 200) is a 16550A [ 6.479183][ T1] 00:05: ttyS3 I/O:0x2e8 (irq =3D 7, base_baud =3D 115= 200) is a 16550A [ 6.531386][ T1] Non-volatile memory driver v1.3 [ 6.575265][ T1] usbcore: registered new interface driver xillyusb [ 6.587434][ T1] ACPI: bus type drm_connector registered [ 6.599051][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0 [ 6.607283][ T1] ------------[ cut here ]------------ [ 6.607294][ T1] [PLANE:35:plane-0] pixel format with alpha exposed b= ut blend mode not setup [ 6.607314][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:873 at dr= m_mode_config_validate+0x1c6d/0x1e60, CPU#0: swapper/0/1 [ 6.607376][ T1] Modules linked in: [ 6.607413][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syz= kaller #0 PREEMPT_{RT,(full)}=20 [ 6.607432][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 06/25/2026 [ 6.607449][ T1] RIP: 0010:drm_mode_config_validate+0x1cae/0x1e60 [ 6.607476][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f= 0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 9a 8a be fc 49 8b 16 4c 89 ef 8= 9 ee <67> 48 0f b9 3a eb 05 e8 b6 24 52 fc 49 bd 00 00 00 00 00 fc ff df [ 6.607494][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 6.607516][ T1] RAX: 1ffff11004c7f408 RBX: dffffc0000000000 RCX: fff= f88801c6e5d00 [ 6.607530][ T1] RDX: ffff8880262a51c0 RSI: 0000000000000023 RDI: fff= fffff8fd973c0 [ 6.607543][ T1] RBP: 0000000000000023 R08: 0000000000000000 R09: 000= 0000000000000 [ 6.607554][ T1] R10: dffffc0000000000 R11: fffffbfff1f9c7f0 R12: dff= ffc0000000000 [ 6.607568][ T1] R13: ffffffff8fd973c0 R14: ffff8880263fa040 R15: fff= f8880263fa030 [ 6.607582][ T1] FS: 0000000000000000(0000) GS:ffff888125a66000(0000= ) knlGS:0000000000000000 [ 6.607597][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.607608][ T1] CR2: ffff88823ffff000 CR3: 000000000e1b0000 CR4: 000= 00000003526f0 [ 6.607623][ T1] Call Trace: [ 6.607634][ T1] [ 6.607659][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 6.607689][ T1] drm_dev_register+0x7f/0xd80 [ 6.607719][ T1] vkms_create+0x40d/0x4f0 [ 6.607741][ T1] ? __pfx_vkms_init+0x10/0x10 [ 6.607769][ T1] vkms_init+0x57/0x80 [ 6.607791][ T1] do_one_initcall+0x250/0x870 [ 6.607811][ T1] ? __pfx_vkms_init+0x10/0x10 [ 6.607834][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 6.607867][ T1] ? __pfx___schedule+0x10/0x10 [ 6.607905][ T1] ? irqentry_exit+0x218/0x8f0 [ 6.607926][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 6.607947][ T1] ? irqentry_exit+0x218/0x8f0 [ 6.607966][ T1] ? trace_irq_disable+0x3b/0x140 [ 6.608002][ T1] ? parameq+0x14d/0x170 [ 6.608028][ T1] ? parse_args+0x9c3/0xad0 [ 6.608065][ T1] ? trace_kmalloc+0x2a/0xf0 [ 6.608089][ T1] ? rcu_is_watching+0x15/0xb0 [ 6.608111][ T1] do_initcall_level+0x10a/0x1a0 [ 6.608138][ T1] ? kernel_init+0x22/0x1d0 [ 6.608163][ T1] do_initcalls+0x59/0xa0 [ 6.608189][ T1] kernel_init_freeable+0x29d/0x3e0 [ 6.608214][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.608239][ T1] kernel_init+0x22/0x1d0 [ 6.608262][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.608284][ T1] ret_from_fork+0x514/0xb70 [ 6.608308][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 6.608329][ T1] ? __switch_to+0xc89/0x1420 [ 6.608347][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.608373][ T1] ret_from_fork_asm+0x1a/0x30 [ 6.608405][ T1] [ 6.608426][ T1] Kernel panic - not syncing: kernel: panic_on_warn se= t ... [ 6.608438][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syz= kaller #0 PREEMPT_{RT,(full)}=20 [ 6.608458][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 06/25/2026 [ 6.608467][ T1] Call Trace: [ 6.608474][ T1] [ 6.608481][ T1] vpanic+0x56c/0xa60 [ 6.608512][ T1] ? __pfx__printk+0x10/0x10 [ 6.608530][ T1] ? __pfx_vpanic+0x10/0x10 [ 6.608550][ T1] ? is_bpf_text_address+0x292/0x2b0 [ 6.608567][ T1] ? is_bpf_text_address+0x26/0x2b0 [ 6.608593][ T1] panic+0xc5/0xd0 [ 6.608615][ T1] ? __pfx_panic+0x10/0x10 [ 6.608646][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 6.608671][ T1] __warn+0x315/0x4c0 [ 6.608692][ T1] ? drm_mode_config_validate+0x1c6d/0x1e60 [ 6.608721][ T1] ? drm_mode_config_validate+0x1c6d/0x1e60 [ 6.608745][ T1] __report_bug+0x276/0x570 [ 6.608771][ T1] ? drm_mode_config_validate+0x1c6d/0x1e60 [ 6.608800][ T1] ? __pfx___report_bug+0x10/0x10 [ 6.608826][ T1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 6.608848][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 6.608871][ T1] ? rt_mutex_slowunlock+0x4ee/0xa20 [ 6.608892][ T1] report_bug_entry+0x19a/0x290 [ 6.608914][ T1] ? drm_mode_config_validate+0x1cae/0x1e60 [ 6.608938][ T1] ? drm_mode_config_validate+0x1cb3/0x1e60 [ 6.608962][ T1] handle_bug+0xce/0x200 [ 6.608985][ T1] exc_invalid_op+0x1a/0x50 [ 6.609007][ T1] asm_exc_invalid_op+0x1a/0x20 [ 6.609025][ T1] RIP: 0010:drm_mode_config_validate+0x1cae/0x1e60 [ 6.609050][ T1] Code: 0f 85 ae 00 00 00 4d 8d 77 10 8b 6d 00 4c 89 f= 0 48 c1 e8 03 80 3c 18 00 74 08 4c 89 f7 e8 9a 8a be fc 49 8b 16 4c 89 ef 8= 9 ee <67> 48 0f b9 3a eb 05 e8 b6 24 52 fc 49 bd 00 00 00 00 00 fc ff df [ 6.609064][ T1] RSP: 0000:ffffc90000067810 EFLAGS: 00010246 [ 6.609078][ T1] RAX: 1ffff11004c7f408 RBX: dffffc0000000000 RCX: fff= f88801c6e5d00 [ 6.609092][ T1] RDX: ffff8880262a51c0 RSI: 0000000000000023 RDI: fff= fffff8fd973c0 [ 6.609105][ T1] RBP: 0000000000000023 R08: 0000000000000000 R09: 000= 0000000000000 [ 6.609116][ T1] R10: dffffc0000000000 R11: fffffbfff1f9c7f0 R12: dff= ffc0000000000 [ 6.609129][ T1] R13: ffffffff8fd973c0 R14: ffff8880263fa040 R15: fff= f8880263fa030 [ 6.609167][ T1] ? debugfs_create_file_full+0x3f/0x60 [ 6.609195][ T1] drm_dev_register+0x7f/0xd80 [ 6.609224][ T1] vkms_create+0x40d/0x4f0 [ 6.609245][ T1] ? __pfx_vkms_init+0x10/0x10 [ 6.609267][ T1] vkms_init+0x57/0x80 [ 6.609289][ T1] do_one_initcall+0x250/0x870 [ 6.609309][ T1] ? __pfx_vkms_init+0x10/0x10 [ 6.609332][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 6.609366][ T1] ? __pfx___schedule+0x10/0x10 [ 6.609396][ T1] ? irqentry_exit+0x218/0x8f0 [ 6.609416][ T1] ? lockdep_hardirqs_on+0x7a/0x110 [ 6.609437][ T1] ? irqentry_exit+0x218/0x8f0 [ 6.609456][ T1] ? trace_irq_disable+0x3b/0x140 [ 6.609493][ T1] ? parameq+0x14d/0x170 [ 6.609516][ T1] ? parse_args+0x9c3/0xad0 [ 6.609516][ T1] ? trace_kmalloc+0x2a/0xf0 [ 6.609516][ T1] ? rcu_is_watching+0x15/0xb0 [ 6.609516][ T1] do_initcall_level+0x10a/0x1a0 [ 6.609516][ T1] ? kernel_init+0x22/0x1d0 [ 6.609516][ T1] do_initcalls+0x59/0xa0 [ 6.609516][ T1] kernel_init_freeable+0x29d/0x3e0 [ 6.609516][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.609516][ T1] kernel_init+0x22/0x1d0 [ 6.609516][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.609516][ T1] ret_from_fork+0x514/0xb70 [ 6.609516][ T1] ? __pfx_ret_from_fork+0x10/0x10 [ 6.609516][ T1] ? __switch_to+0xc89/0x1420 [ 6.609516][ T1] ? __pfx_kernel_init+0x10/0x10 [ 6.609516][ T1] ret_from_fork_asm+0x1a/0x30 [ 6.609516][ T1] [ 6.609516][ T1] Kernel Offset: disabled syzkaller build log: go env (err=3D) AR=3D'ar' CC=3D'gcc' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_ENABLED=3D'1' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' CXX=3D'g++' GCCGO=3D'gccgo' GO111MODULE=3D'auto' GOAMD64=3D'v1' GOARCH=3D'amd64' GOAUTH=3D'netrc' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOCACHEPROG=3D'' GODEBUG=3D'' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFIPS140=3D'off' GOFLAGS=3D'' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build3991592182=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.26.0' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at 00e8b0fd0d nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3D00e8b0fd0d17bb06fe23c0e743356351ada78c22 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260630-130833" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D00e8b0fd0d17bb06fe23c0e743356351ada78c22 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260630-130833" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D00e8b0fd0d17bb06fe23c0e743356351ada78c22 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260630-130833" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"00e8b0fd0d17bb06fe23c0e743356351ad= a78c22\" /usr/bin/ld: /tmp/ccOIdA2r.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking ./tools/check-syzos.sh 2>/dev/null Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D10d692b9580000 Tested on: commit: 3fe08b97 Add linux-next specific files for 20260720 git tree: linux-next kernel config: https://syzkaller.appspot.com/x/.config?x=3D65d6389adb1eb70= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dfb7c2dd166d3ea63d= f2a compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-= 1~exp1~20260613092250.77), Debian LLD 22.1.8 Note: no patches were applied.