Hello, syzbot tried to test the proposed patch but the build/boot failed: 6.6.0 [ 3.293811][ T1] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 3.296985][ T1] FS-Cache: Loaded [ 3.299821][ T1] CacheFiles: Loaded [ 3.301735][ T1] TOMOYO: 2.6.0 [ 3.303022][ T1] Mandatory Access Control activated. [ 3.308387][ T1] AppArmor: AppArmor Filesystem Enabled [ 3.310932][ T1] pnp: PnP ACPI init [ 3.333081][ T1] pnp: PnP ACPI: found 7 devices [ 3.387288][ T1] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns [ 3.391662][ T1] NET: Registered PF_INET protocol family [ 3.397452][ T1] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 3.412428][ T1] tcp_listen_portaddr_hash hash table entries: 4096 (order: 6, 294912 bytes, vmalloc) [ 3.416351][ T1] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, vmalloc) [ 3.421360][ T1] TCP established hash table entries: 65536 (order: 7, 524288 bytes, vmalloc) [ 3.430604][ T1] TCP bind hash table entries: 65536 (order: 10, 4718592 bytes, vmalloc hugepage) [ 3.438876][ T1] TCP: Hash tables configured (established 65536 bind 65536) [ 3.444254][ T1] MPTCP token hash table entries: 8192 (order: 7, 720896 bytes, vmalloc) [ 3.450021][ T1] UDP hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.455480][ T1] UDP-Lite hash table entries: 4096 (order: 7, 655360 bytes, vmalloc) [ 3.459868][ T1] NET: Registered PF_UNIX/PF_LOCAL protocol family [ 3.464349][ T1] RPC: Registered named UNIX socket transport module. [ 3.466551][ T1] RPC: Registered udp transport module. [ 3.468052][ T1] RPC: Registered tcp transport module. [ 3.469630][ T1] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 3.474445][ T1] NET: Registered PF_XDP protocol family [ 3.476136][ T1] pci_bus 0000:00: resource 4 [io 0x0000-0x0cf7 window] [ 3.478533][ T1] pci_bus 0000:00: resource 5 [io 0x0d00-0xffff window] [ 3.480808][ T1] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff window] [ 3.483102][ T1] pci_bus 0000:00: resource 7 [mem 0xc0000000-0xfebfefff window] [ 3.486449][ T1] pci 0000:00:00.0: Limiting direct PCI/PCI transfers [ 3.488875][ T1] PCI: CLS 0 bytes, default 64 [ 3.490261][ T1] PCI-DMA: Using software bounce buffering for IO (SWIOTLB) [ 3.492502][ T1] software IO TLB: mapped [mem 0x00000000b5a00000-0x00000000b9a00000] (64MB) [ 3.495480][ T1] ACPI: bus type thunderbolt registered [ 3.509757][ T57] kworker/u4:1 (57) used greatest stack depth: 27256 bytes left [ 3.511725][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer [ 3.539645][ T1] kvm: already loaded vendor module 'kvm_intel' [ 3.541703][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x1fb700c3c76, max_idle_ns: 440795286388 ns [ 3.545330][ T1] clocksource: Switched to clocksource tsc [ 3.555572][ T62] kworker/u4:4 (62) used greatest stack depth: 26864 bytes left [ 7.007347][ T1] Initialise system trusted keyrings [ 7.010222][ T1] workingset: timestamp_bits=40 max_order=21 bucket_order=0 [ 7.053672][ T1] zbud: loaded [ 7.062452][ T1] DLM installed [ 7.071357][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 7.083415][ T1] NFS: Registering the id_resolver key type [ 7.084569][ T1] Key type id_resolver registered [ 7.085956][ T1] Key type id_legacy registered [ 7.087430][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering... [ 7.088957][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering... [ 7.090898][ T1] Installing knfsd (copyright (C) 1996 okir@xxxxxxxxxxxx). [ 7.099997][ T1] Key type cifs.spnego registered [ 7.101124][ T1] Key type cifs.idmap registered [ 7.102589][ T1] ntfs: driver 2.1.32 [Flags: R/W]. [ 7.104795][ T1] ntfs3: Max link count 4000 [ 7.105478][ T1] ntfs3: Enabled Linux POSIX ACLs support [ 7.106598][ T1] ntfs3: Read-only LZX/Xpress compression included [ 7.110177][ T1] efs: 1.0a - http://aeschi.ch.eu.org/efs/ [ 7.112037][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc. [ 7.117328][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc. [ 7.119672][ T1] QNX4 filesystem 0.2.3 registered. [ 7.121322][ T1] qnx6: QNX6 filesystem 1.0.0 registered. [ 7.123668][ T1] fuse: init (API version 7.36) [ 7.128698][ T1] orangefs_debugfs_init: called with debug mask: :none: :0: [ 7.130627][ T1] orangefs_init: module version upstream loaded [ 7.132582][ T1] JFS: nTxBlock = 8192, nTxLock = 65536 [ 7.151005][ T1] SGI XFS with ACLs, security attributes, realtime, quota, fatal assert, debug enabled [ 7.165385][ T1] 9p: Installing v9fs 9p2000 file system support [ 7.168114][ T1] NILFS version 2 loaded [ 7.168946][ T1] befs: version: 0.9.3 [ 7.171224][ T1] ocfs2: Registered cluster interface o2cb [ 7.172474][ T1] ocfs2: Registered cluster interface user [ 7.174608][ T1] OCFS2 User DLM kernel interface loaded [ 7.186651][ T1] gfs2: GFS2 installed [ 7.200575][ T1] ceph: loaded (mds proto 32) [ 7.214141][ T1] NET: Registered PF_ALG protocol family [ 7.215457][ T1] xor: automatically using best checksumming function avx [ 7.216575][ T1] async_tx: api initialized (async) [ 7.217530][ T1] Key type asymmetric registered [ 7.218239][ T1] Asymmetric key parser 'x509' registered [ 7.219470][ T1] Asymmetric key parser 'pkcs8' registered [ 7.220454][ T1] Key type pkcs7_test registered [ 7.224877][ T1] alg: self-tests for CTR-KDF (hmac(sha256)) passed [ 7.226248][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 240) [ 7.228234][ T1] io scheduler mq-deadline registered [ 7.229517][ T1] io scheduler kyber registered [ 7.231202][ T1] io scheduler bfq registered [ 7.246749][ T1] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input0 [ 7.259853][ T1] ACPI: button: Power Button [PWRF] [ 7.262507][ T1] input: Sleep Button as /devices/LNXSYSTM:00/LNXSLPBN:00/input/input1 [ 7.265778][ T1] ACPI: button: Sleep Button [SLPF] [ 7.292165][ T1] ACPI: \_SB_.LNKC: Enabled at IRQ 11 [ 7.293783][ T1] virtio-pci 0000:00:03.0: virtio_pci: leaving for legacy driver [ 7.313174][ T1] ACPI: \_SB_.LNKD: Enabled at IRQ 10 [ 7.314393][ T1] virtio-pci 0000:00:04.0: virtio_pci: leaving for legacy driver [ 7.333582][ T1] ACPI: \_SB_.LNKB: Enabled at IRQ 10 [ 7.334602][ T1] virtio-pci 0000:00:06.0: virtio_pci: leaving for legacy driver [ 7.348953][ T1] virtio-pci 0000:00:07.0: virtio_pci: leaving for legacy driver [ 7.771530][ T1] N_HDLC line discipline registered with maxframe=4096 [ 7.772933][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled [ 7.774539][ T1] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A [ 7.783403][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A [ 7.791265][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq = 6, base_baud = 115200) is a 16550A [ 7.797093][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq = 7, base_baud = 115200) is a 16550A [ 7.809304][ T1] Non-volatile memory driver v1.3 [ 7.827944][ T1] Linux agpgart interface v0.103 [ 7.833603][ T1] ACPI: bus type drm_connector registered [ 7.838434][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0 [ 7.845071][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1 [ 7.907391][ T1] Console: switching to colour frame buffer device 128x48 [ 7.925767][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device [ 7.927589][ T1] usbcore: registered new interface driver udl [ 7.989754][ T1] brd: module loaded [ 8.050181][ T1] loop: module loaded [ 8.135078][ T1] zram: Added device: zram0 [ 8.143367][ T1] null_blk: disk nullb0 created [ 8.144480][ T1] null_blk: module loaded [ 8.145538][ T1] Guest personality initialized and is inactive [ 8.147216][ T1] VMCI host device registered (name=vmci, major=10, minor=119) [ 8.148573][ T1] Initialized host personality [ 8.149563][ T1] usbcore: registered new interface driver rtsx_usb [ 8.151595][ T1] usbcore: registered new interface driver viperboard [ 8.153227][ T1] usbcore: registered new interface driver dln2 [ 8.154829][ T1] usbcore: registered new interface driver pn533_usb [ 8.161056][ T1] nfcsim 0.2 initialized [ 8.162049][ T1] usbcore: registered new interface driver port100 [ 8.163368][ T1] usbcore: registered new interface driver nfcmrvl [ 8.167580][ T1] Loading iSCSI transport class v2.0-870. [ 8.202542][ T1] scsi host0: Virtio SCSI HBA [ 8.248257][ T1] st: Version 20160209, fixed bufsize 32768, s/g segs 256 [ 8.251625][ T46] scsi 0:0:1:0: Direct-Access Google PersistentDisk 1 PQ: 0 ANSI: 6 [ 8.289244][ T1] Rounding down aligned max_sectors from 4294967295 to 4294967288 [ 8.291872][ T1] db_root: cannot open: /etc/target [ 8.294506][ T1] slram: not enough parameters. [ 8.301140][ T1] general protection fault, probably for non-canonical address 0xdffffc00000000ac: 0000 [#1] PREEMPT SMP KASAN [ 8.303611][ T1] KASAN: null-ptr-deref in range [0x0000000000000560-0x0000000000000567] [ 8.305651][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.19.0-rc5-next-20220707-syzkaller #0 [ 8.308417][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 8.308417][ T1] RIP: 0010:add_mtd_device+0xbc8/0x1520 [ 8.308417][ T1] Code: 48 81 fd 60 fe ff ff 0f 84 90 fd ff ff e8 30 9a 95 fc 48 8d bd 60 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 da 08 00 00 48 8b ad 60 05 00 00 48 85 ed 0f 84 [ 8.308417][ T1] RSP: 0000:ffffc90000067c98 EFLAGS: 00010206 [ 8.308417][ T1] RAX: dffffc0000000000 RBX: ffff8881472e2000 RCX: 0000000000000000 [ 8.308417][ T1] RDX: 00000000000000ac RSI: ffffffff84e5ed10 RDI: 0000000000000560 [ 8.308417][ T1] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 [ 8.308417][ T1] R10: ffffffff89e00000 R11: 0000000000000000 R12: ffff8881472e2004 [ 8.308417][ T1] R13: ffff8881472e2028 R14: 0000000000000000 R15: 0000000005a00000 [ 8.308417][ T1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 8.308417][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.308417][ T1] CR2: 0000000000000000 CR3: 000000000bc8e000 CR4: 00000000003506e0 [ 8.308417][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.308417][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.308417][ T1] Call Trace: [ 8.308417][ T1] <TASK> [ 8.308417][ T1] ? del_mtd_partitions+0x50/0x50 [ 8.308417][ T1] ? lockdep_init_map_type+0x21a/0x7f0 [ 8.308417][ T1] ? mtd_erase+0x8e0/0x8e0 [ 8.308417][ T1] ? lockdep_init_map_type+0x21a/0x7f0 [ 8.308417][ T1] ? __raw_spin_lock_init+0x36/0x110 [ 8.308417][ T1] mtd_device_parse_register+0x50c/0x850 [ 8.308417][ T1] mtdram_init_device+0x291/0x350 [ 8.308417][ T1] ? init_phram+0x99/0x99 [ 8.308417][ T1] init_mtdram+0xe5/0x177 [ 8.308417][ T1] ? init_phram+0x99/0x99 [ 8.308417][ T1] do_one_initcall+0xfe/0x650 [ 8.308417][ T1] ? trace_event_raw_event_initcall_level+0x1f0/0x1f0 [ 8.308417][ T1] ? parameq+0x120/0x170 [ 8.308417][ T1] kernel_init_freeable+0x6b1/0x73a [ 8.308417][ T1] ? rest_init+0x270/0x270 [ 8.308417][ T1] kernel_init+0x1a/0x1d0 [ 8.308417][ T1] ? rest_init+0x270/0x270 [ 8.308417][ T1] ret_from_fork+0x1f/0x30 [ 8.308417][ T1] </TASK> [ 8.308417][ T1] Modules linked in: [ 8.354639][ T1] ---[ end trace 0000000000000000 ]--- [ 8.356288][ T1] RIP: 0010:add_mtd_device+0xbc8/0x1520 [ 8.358068][ T1] Code: 48 81 fd 60 fe ff ff 0f 84 90 fd ff ff e8 30 9a 95 fc 48 8d bd 60 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 da 08 00 00 48 8b ad 60 05 00 00 48 85 ed 0f 84 [ 8.364455][ T1] RSP: 0000:ffffc90000067c98 EFLAGS: 00010206 [ 8.366307][ T1] RAX: dffffc0000000000 RBX: ffff8881472e2000 RCX: 0000000000000000 [ 8.368860][ T1] RDX: 00000000000000ac RSI: ffffffff84e5ed10 RDI: 0000000000000560 [ 8.371267][ T1] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000 [ 8.373529][ T1] R10: ffffffff89e00000 R11: 0000000000000000 R12: ffff8881472e2004 [ 8.376204][ T1] R13: ffff8881472e2028 R14: 0000000000000000 R15: 0000000005a00000 [ 8.378489][ T1] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 8.381365][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.383439][ T1] CR2: ffff88823ffff000 CR3: 000000000bc8e000 CR4: 00000000003506f0 [ 8.385780][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 8.388324][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 8.390899][ T1] Kernel panic - not syncing: Fatal exception [ 8.393182][ T1] Kernel Offset: disabled [ 8.394024][ T1] Rebooting in 86400 seconds.. syzkaller build log: go env (err=<nil>) GO111MODULE="auto" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOEXPERIMENT="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GOINSECURE="" GOMODCACHE="/syzkaller/jobs/linux/gopath/pkg/mod" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct"; GOROOT="/usr/local/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64" GOVCS="" GOVERSION="go1.17" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod" CGO_CFLAGS="-g -O2" CGO_CPPFLAGS="" CGO_CXXFLAGS="-g -O2" CGO_FFLAGS="-g -O2" CGO_LDFLAGS="-g -O2" PKG_CONFIG="pkg-config" GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build360636327=/tmp/go-build -gno-record-gcc-switches" git status (err=<nil>) HEAD detached at bff65f44b nothing to commit, working tree clean go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen make .descriptions bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress mkdir -p ./bin/linux_amd64 gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"bff65f44b47bd73f56c3d6a5c3899de5f5775136\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=1521cd5c080000 Tested on: commit: 75d7bf5e Add linux-next specific files for 20220707 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master kernel config: https://syzkaller.appspot.com/x/.config?x=12690a05d4f2fc33 dashboard link: https://syzkaller.appspot.com/bug?extid=fe013f55a2814a9e8cfd compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied.
