ci starts bisection 2024-07-06 21:45:01.096691044 +0000 UTC m=+48862.048905678 bisecting fixing commit since 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 building syzkaller on 2a0d0f29e37863d5cdb8e95c9fa2a83251ba3972 ensuring issue is reproducible on original commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 628bd18ea1705beb922689ca13b3bd4f22faad422c5b5fd21cc9467bb7569ece run #0: crashed: INFO: task hung in rfkill_fop_open run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #2: crashed: INFO: task hung in misc_open run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in misc_open run #5: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #6: crashed: INFO: task hung in nfc_rfkill_set_block run #7: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #8: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #9: crashed: INFO: task hung in misc_open run #10: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #11: crashed: INFO: task hung in rfkill_sync_work run #12: crashed: INFO: task hung in misc_open run #13: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #14: crashed: INFO: task hung in misc_open run #15: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #16: crashed: INFO: task hung in misc_open run #17: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #18: crashed: INFO: task hung in rfkill_unregister run #19: crashed: INFO: task hung in rfkill_global_led_trigger_worker representative crash: INFO: task hung in rfkill_fop_open, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f6bdd12bf29da18bbdcf8d452935460dfcee71650842a82a07eae7519df91148 run #0: crashed: INFO: task hung in genl_rcv_msg run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #2: crashed: INFO: task hung in rfkill_fop_open run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in rfkill_unregister run #5: crashed: INFO: task hung in rfkill_sync_work run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #7: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #8: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #9: crashed: INFO: task hung in rfkill_global_led_trigger_worker representative crash: INFO: task hung in genl_rcv_msg, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4001 full=7642 leaves diff=2006 split chunks (needed=false): <2006> split chunk #0 of len 2006 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73073677116e94008aae8f86b6e2d0f8743ff4ffe3e06da209aae8afe18a7e59 run #0: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #2: crashed: INFO: task hung in nfc_rfkill_set_block run #3: crashed: INFO: task hung in misc_open run #4: crashed: INFO: task hung in misc_open run #5: crashed: INFO: task hung in misc_open run #6: crashed: INFO: task hung in rfkill_sync_work run #7: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #8: crashed: INFO: task hung in rfkill_sync_work run #9: crashed: INFO: task hung in rfkill_global_led_trigger_worker representative crash: INFO: task hung in rfkill_global_led_trigger_worker, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2c36454e802944812794facac76c25a77db1485a949724f1729f59fa75a8de13 run #0: crashed: INFO: task hung in rfkill_sync_work run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #2: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in rfkill_sync_work run #5: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #7: crashed: INFO: task hung in rfkill_unregister run #8: crashed: INFO: task hung in rfkill_sync_work run #9: crashed: INFO: task hung in rfkill_sync_work representative crash: INFO: task hung in rfkill_sync_work, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75523f64feb7fc52350a4899fd9a7f8b482f4fca874741b5067d5d8822dbead1 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b6ebc414bfeef023c7c92dfb729582cb898c14a568a6f9d429dd7e36a4316b8 run #0: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #2: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #5: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #7: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #8: crashed: INFO: task hung in rfkill_sync_work run #9: crashed: INFO: task hung in rfkill_global_led_trigger_worker representative crash: INFO: task hung in rfkill_global_led_trigger_worker, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 5d0c230f1de8c7515b6567d9afba1f196fb4e2f4 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3331ce7bf7f5a3d03d6bec893afff228766addf7c412aaf375548d84be4c4ac2 run #0: crashed: INFO: task hung in rfkill_unregister run #1: crashed: INFO: task hung in rfkill_sync_work run #2: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #5: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #7: crashed: INFO: task hung in rfkill_sync_work run #8: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #9: crashed: INFO: task hung in rfkill_global_led_trigger_worker representative crash: INFO: task hung in rfkill_unregister, types: [HANG] the chunk can be dropped minimized to 402 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HAVE_KVM HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LRU_GEN LRU_GEN_ENABLED LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MICROCODE_AMD MICROCODE_INTEL MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_BPF_LINK NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XTABLES_COMPAT NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MQPRIO_LIB NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V2 NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_OVS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI] disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing current HEAD 22f902dfc51eb3602ff9b505ac3980f6ff77b1df testing commit 22f902dfc51eb3602ff9b505ac3980f6ff77b1df gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c155d0afa93efa321f0be9807fea86c5e211c21254c3e07c98fd5f62f6debbe1 run #0: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #1: crashed: INFO: task hung in rfkill_unregister run #2: crashed: INFO: task hung in rfkill_sync_work run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #4: crashed: INFO: task hung in rfkill_sync_work run #5: crashed: INFO: task hung in uevent_show run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #7: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #8: crashed: INFO: task hung in rfkill_global_led_trigger_worker run #9: crashed: INFO: task hung in uevent_show representative crash: INFO: task hung in rfkill_global_led_trigger_worker, types: [HANG] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 3h52m23.472435124s (build: 2h21m12.092714555s, test: 1h14m55.415522797s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'i2c-for-6.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux crash: INFO: task hung in rfkill_global_led_trigger_worker INFO: task kworker/0:0:8 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:13232 pid:8 tgid:8 ppid:2 flags:0x00004000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_global_led_trigger_worker+0x19/0x100 net/rfkill/core.c:182 process_one_work+0x32f/0x950 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x30f/0x5b0 kernel/workqueue.c:3409 kthread+0x106/0x140 kernel/kthread.c:389 ret_from_fork+0x45/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task udevd:1660 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:13104 pid:1660 tgid:1660 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1009 [inline] uevent_show+0xd0/0x1a0 drivers/base/core.c:2743 dev_attr_show+0x32/0xa0 drivers/base/core.c:2437 sysfs_kf_seq_show+0x12e/0x200 fs/sysfs/file.c:59 seq_read_iter+0x1ae/0x720 fs/seq_file.c:230 kernfs_fop_read_iter+0x224/0x2b0 fs/kernfs/file.c:279 new_sync_read fs/read_write.c:395 [inline] vfs_read+0x437/0x580 fs/read_write.c:476 ksys_read+0xb3/0x180 fs/read_write.c:619 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7febb6682b6a RSP: 002b:00007ffe3c58e4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000055774a47e6f0 RCX: 00007febb6682b6a RDX: 0000000000001000 RSI: 000055774a4dbec0 RDI: 000000000000000c RBP: 000055774a47e6f0 R08: 000000000000000c R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000003fff R14: 00007ffe3c58e9c8 R15: 000000000000000a INFO: task udevd:6472 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:14096 pid:6472 tgid:6472 ppid:1660 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1009 [inline] uevent_show+0xd0/0x1a0 drivers/base/core.c:2743 dev_attr_show+0x32/0xa0 drivers/base/core.c:2437 sysfs_kf_seq_show+0x12e/0x200 fs/sysfs/file.c:59 seq_read_iter+0x1ae/0x720 fs/seq_file.c:230 kernfs_fop_read_iter+0x224/0x2b0 fs/kernfs/file.c:279 new_sync_read fs/read_write.c:395 [inline] vfs_read+0x437/0x580 fs/read_write.c:476 ksys_read+0xb3/0x180 fs/read_write.c:619 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7febb6682b6a RSP: 002b:00007ffe3c589ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 000055774a47e6f0 RCX: 00007febb6682b6a RDX: 0000000000001000 RSI: 000055774a48aa50 RDI: 0000000000000008 RBP: 000055774a47e6f0 R08: 0000000000000008 R09: 0000000000000008 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000003fff R14: 00007ffe3c58a3d8 R15: 000000000000000a INFO: task syz-executor.0:6510 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:13264 pid:6510 tgid:6510 ppid:2591 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 nfc_unregister_device+0x6a/0x180 net/nfc/core.c:1167 virtual_ncidev_close+0x1c/0x40 drivers/nfc/virtual_ncidev.c:172 __fput+0x1c3/0x510 fs/file_table.c:422 __fput_sync+0x39/0x40 fs/file_table.c:507 __do_sys_close fs/open.c:1563 [inline] __se_sys_close fs/open.c:1548 [inline] __x64_sys_close+0x45/0xa0 fs/open.c:1548 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb853cbd9da RSP: 002b:00007ffefc1237b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb853cbd9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fb853ddf980 R08: 0000001b2d660000 R09: 00007fb853c3c080 R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000013afb R13: ffffffffffffffff R14: 00007fb85383c000 R15: 00000000000137ba INFO: task syz-executor.0:6518 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:12528 pid:6518 tgid:6510 ppid:2591 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 misc_open+0x29/0x210 drivers/char/misc.c:129 chrdev_open+0x120/0x330 fs/char_dev.c:414 do_dentry_open+0x37d/0x800 fs/open.c:955 vfs_open+0x43/0x1c0 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x124c/0x1580 fs/namei.c:3813 do_filp_open+0xe3/0x1d0 fs/namei.c:3840 do_sys_openat2+0xf8/0x150 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_sys_openat fs/open.c:1444 [inline] __se_sys_openat fs/open.c:1439 [inline] __x64_sys_openat+0xb3/0x100 fs/open.c:1439 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb853cbeae9 RSP: 002b:00007fb85383b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fb853dddf80 RCX: 00007fb853cbeae9 RDX: 0000000000000801 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007fb853d0a47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fb853dddf80 R15: 00007ffefc1236e8 INFO: task syz-executor.5:6512 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:13784 pid:6512 tgid:6512 ppid:5358 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 nfc_unregister_device+0x6a/0x180 net/nfc/core.c:1167 virtual_ncidev_close+0x1c/0x40 drivers/nfc/virtual_ncidev.c:172 __fput+0x1c3/0x510 fs/file_table.c:422 __fput_sync+0x39/0x40 fs/file_table.c:507 __do_sys_close fs/open.c:1563 [inline] __se_sys_close fs/open.c:1548 [inline] __x64_sys_close+0x45/0xa0 fs/open.c:1548 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f087eef19da RSP: 002b:00007ffd51f06c80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f087eef19da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000032 R08: 0000001b32260000 R09: 00007f087f011f8c R10: 00007ffd51f06dd0 R11: 0000000000000293 R12: 00007f087ea70298 R13: ffffffffffffffff R14: 00007f087ea70000 R15: 00000000000137ba INFO: task syz-executor.3:6513 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:13784 pid:6513 tgid:6513 ppid:2594 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 nfc_unregister_device+0x6a/0x180 net/nfc/core.c:1167 virtual_ncidev_close+0x1c/0x40 drivers/nfc/virtual_ncidev.c:172 __fput+0x1c3/0x510 fs/file_table.c:422 __fput_sync+0x39/0x40 fs/file_table.c:507 __do_sys_close fs/open.c:1563 [inline] __se_sys_close fs/open.c:1548 [inline] __x64_sys_close+0x45/0xa0 fs/open.c:1548 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f19047309da RSP: 002b:00007ffce5f89a00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f19047309da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000032 R08: 0000001b2d560000 R09: 00007f1904850f8c R10: 00007ffce5f89b50 R11: 0000000000000293 R12: 00007f19042af298 R13: ffffffffffffffff R14: 00007f19042af000 R15: 00000000000137bb INFO: task syz-executor.1:6515 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:13784 pid:6515 tgid:6515 ppid:2592 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 nfc_unregister_device+0x6a/0x180 net/nfc/core.c:1167 virtual_ncidev_close+0x1c/0x40 drivers/nfc/virtual_ncidev.c:172 __fput+0x1c3/0x510 fs/file_table.c:422 __fput_sync+0x39/0x40 fs/file_table.c:507 __do_sys_close fs/open.c:1563 [inline] __se_sys_close fs/open.c:1548 [inline] __x64_sys_close+0x45/0xa0 fs/open.c:1548 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0889d5f9da RSP: 002b:00007ffcbc7ce8d0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0889d5f9da RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f0889e81980 R08: 0000001b2d460000 R09: 00007f0889cde080 R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000013afa R13: ffffffffffffffff R14: 00007f08898de000 R15: 00000000000137b9 INFO: task syz-executor.1:6516 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:12848 pid:6516 tgid:6515 ppid:2592 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1009 [inline] nfc_dev_down+0x2b/0x130 net/nfc/core.c:143 nfc_rfkill_set_block+0x39/0x90 net/nfc/core.c:179 rfkill_set_block+0xf3/0x2a0 net/rfkill/core.c:346 rfkill_fop_write+0x225/0x330 net/rfkill/core.c:1305 vfs_write+0x178/0x730 fs/read_write.c:588 ksys_write+0x148/0x180 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0889d60ae9 RSP: 002b:00007f08898dd0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f0889e7ff80 RCX: 00007f0889d60ae9 RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f0889dac47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f0889e7ff80 R15: 00007ffcbc7ce808 INFO: task syz-executor.2:6535 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:13920 pid:6535 tgid:6522 ppid:5359 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x3e3/0xa70 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x25/0x110 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x51d/0x9c0 kernel/locking/mutex.c:752 rfkill_register+0x35/0x3e0 net/rfkill/core.c:1075 nfc_register_device+0xda/0x210 net/nfc/core.c:1132 nci_register_device+0x3b8/0x450 net/nfc/nci/core.c:1266 virtual_ncidev_open+0xaa/0x110 drivers/nfc/virtual_ncidev.c:157 misc_open+0x1dc/0x210 drivers/char/misc.c:165 chrdev_open+0x120/0x330 fs/char_dev.c:414 do_dentry_open+0x37d/0x800 fs/open.c:955 vfs_open+0x43/0x1c0 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x124c/0x1580 fs/namei.c:3813 do_filp_open+0xe3/0x1d0 fs/namei.c:3840 do_sys_openat2+0xf8/0x150 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_sys_openat fs/open.c:1444 [inline] __se_sys_openat fs/open.c:1439 [inline] __x64_sys_openat+0xb3/0x100 fs/open.c:1439 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5b3f10cae9 RSP: 002b:00007f5b3ec890c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f5b3f22bf80 RCX: 00007f5b3f10cae9 RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 00007f5b3f15847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007f5b3f22bf80 R15: 00007ffca6c007b8 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 3 locks held by kworker/0:0/8: #0: ffff888100078548 ((wq_completion)events){....}-{0:0}, at: process_one_work+0x784/0x950 kernel/workqueue.c:3223 #1: ffffc9000004be48 ((work_completion)(&rfkill_global_led_trigger_work)){....}-{0:0}, at: process_one_work+0x2ce/0x950 kernel/workqueue.c:3224 #2: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_global_led_trigger_worker+0x19/0x100 net/rfkill/core.c:182 1 lock held by khungtaskd/29: #0: ffffffff83ba67e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff83ba67e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff83ba67e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x120 kernel/locking/lockdep.c:6614 4 locks held by udevd/1660: #0: ffff888106317270 (&p->lock){....}-{3:3}, at: seq_read_iter+0x7a/0x720 fs/seq_file.c:182 #1: ffff888118b2b488 (&of->mutex#2){....}-{3:3}, at: kernfs_seq_start+0x27/0x120 fs/kernfs/file.c:154 #2: ffff888117d3d218 (kn->active#5){....}-{0:0}, at: kernfs_seq_start+0x30/0x120 fs/kernfs/file.c:155 #3: ffff88810fba3900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff88810fba3900 (&dev->mutex){....}-{3:3}, at: uevent_show+0xd0/0x1a0 drivers/base/core.c:2743 2 locks held by getty/1785: #0: ffff888103b0b8a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x60 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f832f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x842/0xa60 drivers/tty/n_tty.c:2211 4 locks held by udevd/6472: #0: ffff8881073c7188 (&p->lock){....}-{3:3}, at: seq_read_iter+0x7a/0x720 fs/seq_file.c:182 #1: ffff888117d2ca88 (&of->mutex#2){....}-{3:3}, at: kernfs_seq_start+0x27/0x120 fs/kernfs/file.c:154 #2: ffff88810e3d0bb8 (kn->active#5){....}-{0:0}, at: kernfs_seq_start+0x30/0x120 fs/kernfs/file.c:155 #3: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: uevent_show+0xd0/0x1a0 drivers/base/core.c:2743 2 locks held by syz-executor.0/6510: #0: ffff88811880d900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff88811880d900 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x51/0x180 net/nfc/core.c:1165 #1: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 1 lock held by syz-executor.0/6518: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 2 locks held by syz-executor.5/6512: #0: ffff888110361900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff888110361900 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x51/0x180 net/nfc/core.c:1165 #1: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 2 locks held by syz-executor.3/6513: #0: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x51/0x180 net/nfc/core.c:1165 #1: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 2 locks held by syz-executor.1/6515: #0: ffff88810ef02100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff88810ef02100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x51/0x180 net/nfc/core.c:1165 #1: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x74/0x110 net/rfkill/core.c:1149 2 locks held by syz-executor.1/6516: #0: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_fop_write+0xe2/0x330 net/rfkill/core.c:1297 #1: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #1: ffff88810fba2100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down+0x2b/0x130 net/nfc/core.c:143 3 locks held by syz-executor.2/6535: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 #1: ffff88810fba3900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #1: ffff88810fba3900 (&dev->mutex){....}-{3:3}, at: nfc_register_device+0x92/0x210 net/nfc/core.c:1128 #2: ffffffff83d81fc8 (rfkill_global_mutex){....}-{3:3}, at: rfkill_register+0x35/0x3e0 net/rfkill/core.c:1075 1 lock held by syz-executor.2/6541: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.4/6540: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.4/6543: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.0/6550: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.1/6551: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.5/6556: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.3/6557: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.2/6563: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.4/6575: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.1/8811: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.3/8816: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.0/8818: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.5/8822: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.2/8825: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 1 lock held by syz-executor.4/8833: #0: ffffffff83c85508 (misc_mtx){....}-{3:3}, at: misc_open+0x29/0x210 drivers/char/misc.c:129 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xc7/0x130 lib/dump_stack.c:114 nmi_cpu_backtrace+0x1b2/0x210 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x1b4/0x1e0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0x964/0x9a0 kernel/hung_task.c:379 kthread+0x106/0x140 kernel/kthread.c:389 ret_from_fork+0x45/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.10.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline] RIP: 0010:smp_call_function_many_cond+0x27d/0xb90 kernel/smp.c:855 Code: 00 00 00 e8 75 32 05 00 48 63 c3 49 8b 2c 24 48 03 2c c5 20 4a 82 83 0f 1f 44 00 00 e8 5c 32 05 00 eb 07 e8 55 32 05 00 f3 90 <8b> 5d 08 31 ff 83 e3 01 89 de e8 44 2d 05 00 85 db 75 e6 e8 3b 32 RSP: 0018:ffffc9000012fc20 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff812c95dc RDX: ffff888101e9b700 RSI: ffffffff812c95cb RDI: 0000000000000005 RBP: ffff888237d35140 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888237c30900 R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ac61d1440 CR3: 0000000003a74000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2069 [inline] text_poke_bp_batch+0x3bd/0x4b0 arch/x86/kernel/alternative.c:2362 text_poke_flush arch/x86/kernel/alternative.c:2470 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2477 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x19a/0x1e0 kernel/jump_label.c:882 static_key_disable_cpuslocked kernel/jump_label.c:235 [inline] static_key_disable_cpuslocked+0x83/0x90 kernel/jump_label.c:223 static_key_disable+0x1a/0x20 kernel/jump_label.c:243 toggle_allocation_gate mm/kfence/core.c:831 [inline] toggle_allocation_gate+0x94/0x150 mm/kfence/core.c:818 process_one_work+0x32f/0x950 kernel/workqueue.c:3248 process_scheduled_works kernel/workqueue.c:3329 [inline] worker_thread+0x30f/0x5b0 kernel/workqueue.c:3409 kthread+0x106/0x140 kernel/kthread.c:389 ret_from_fork+0x45/0x60 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244