ci2 starts bisection 2025-08-24 11:54:36.301425006 +0000 UTC m=+203426.064587977
bisecting fixing commit since d7039b844a1c0817aef0c66c2f87cd6b29fbd29e
building syzkaller on 6b856513c13bbdf86191190923fb64438219ea68
ensuring issue is reproducible on original commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 3fc07cb46ba1700358634cc5d3fa529f747f0b123a1518c502a3c36be8101a71
run #0: crashed: INFO: task hung in nfc_rfkill_set_block
run #1: crashed: INFO: task hung in nfc_rfkill_set_block
run #2: crashed: INFO: task hung in nfc_rfkill_set_block
run #3: crashed: INFO: task hung in nfc_rfkill_set_block
run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #5: crashed: INFO: task hung in rfkill_unregister
run #6: crashed: INFO: task hung in genl_rcv_msg
run #7: crashed: INFO: task hung in uevent_show
run #8: crashed: INFO: task hung in nfc_rfkill_set_block
run #9: crashed: INFO: task hung in nfc_rfkill_set_block
run #10: crashed: INFO: task hung in uevent_show
run #11: crashed: INFO: task hung in rfkill_unregister
run #12: crashed: INFO: task hung in rfkill_unregister
run #13: crashed: INFO: task hung in uevent_show
run #14: crashed: INFO: task hung in uevent_show
run #15: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #16: crashed: INFO: task hung in rfkill_sync_work
run #17: crashed: INFO: task hung in rfkill_unregister
run #18: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #19: crashed: INFO: task hung in rfkill_unregister
representative crash: INFO: task hung in nfc_rfkill_set_block, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: c05130f112aaa9db8b3c0dbd696c76d0449adf17dd6b584f87129cde57482adf
run #0: crashed: INFO: task hung in rfkill_unregister
run #1: crashed: INFO: task hung in nfc_rfkill_set_block
run #2: crashed: INFO: task hung in uevent_show
run #3: crashed: INFO: task hung in rfkill_unregister
run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #5: crashed: INFO: task hung in rfkill_unregister
run #6: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #7: crashed: INFO: task hung in uevent_show
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 bug reproduces without the instrumentation
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
kconfig minimization: base=3829 full=7497 leaves diff=2069
split chunks (needed=false): <2069>
split chunk #0 of len 2069 into 5 parts
testing without sub-chunk 1/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: f59b2352b79d349c9ab34f3bfb439332c4b4466468f01271a35f01a2f1945225
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_global_led_trigger_worker
run #3: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #4: crashed: INFO: task hung in uevent_show
run #5: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #6: crashed: INFO: task hung in uevent_show
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]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 79900a5a07430f8f71d997f6c59b7a8326c0bd05d835a60e8dec8778b77c2e24
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 uevent_show
run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #5: crashed: INFO: task hung in nfc_rfkill_set_block
run #6: crashed: INFO: task hung in rfkill_unregister
run #7: crashed: INFO: task hung in rfkill_unregister
run #8: crashed: INFO: task hung in rfkill_unregister
run #9: crashed: INFO: task hung in rfkill_unregister
representative crash: INFO: task hung in rfkill_global_led_trigger_worker, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: 8f67f63eead5e958ee62eda39e9027ca8e26dc5349401a9b3aea30bd74573cf7
all runs: OK
false negative chance: 0.000
testing without sub-chunk 4/5
disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: af9ed9036cc5741af1e44f1efc2b1bf6fb1a740c82b7de45908dd7f73c77d3e6
run #0: crashed: INFO: task hung in rfkill_unregister
run #1: crashed: INFO: task hung in uevent_show
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_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_unregister
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_unregister, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [bug_or_warning kasan locking atomic_sleep memleak ubsan], they are not needed
testing commit d7039b844a1c0817aef0c66c2f87cd6b29fbd29e gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: fcf017af564211e44ad7eacbcee9dc9146453fe24e996b16478cc5054c8a4af6
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 uevent_show
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_global_led_trigger_worker
run #6: crashed: INFO: task hung in uevent_show
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]
the chunk can be dropped
minimized to 414 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HID_NINTENDO 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_NQ IP_VS_OVF 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_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY 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_PXRC 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_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LD_IS_BFD LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH 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 MDIO_MVUSB 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 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 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOST_USB_HDM 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_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY 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_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_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_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_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NINTENDO_FF NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 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 [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed
testing current HEAD 0bc96de781b4da716c8dbd248af4b26d8d8341f5
testing commit 0bc96de781b4da716c8dbd248af4b26d8d8341f5 gcc
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
kernel signature: eaefc18de5e2273f53ffe5c1547c2587d20e2a509adf3e1dcb4f009ee62ca4a3
run #0: crashed: INFO: task hung in rfkill_unregister
run #1: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #2: crashed: INFO: task hung in rfkill_unregister
run #3: crashed: INFO: task hung in rfkill_unregister
run #4: crashed: INFO: task hung in rfkill_global_led_trigger_worker
run #5: crashed: INFO: task hung in rfkill_unregister
run #6: crashed: INFO: task hung in uevent_show
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 rfkill_unregister, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h37m39.511284351s (build: 1h4m18.539042965s, test: 1h22m22.035964787s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.1.148
crash: INFO: task hung in rfkill_unregister
INFO: task kworker/u4:3:42 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:3 state:D stack:12656 pid:42 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
rfkill_unregister+0x6c/0x100 net/rfkill/core.c:1130
wiphy_unregister+0x149/0x590 net/wireless/core.c:1089
ieee80211_unregister_hw+0x104/0x150 net/mac80211/main.c:1499
mac80211_hwsim_del_radio+0x14e/0x1e0 drivers/net/wireless/mac80211_hwsim.c:4688
hwsim_exit_net+0x255/0x300 drivers/net/wireless/mac80211_hwsim.c:5475
ops_exit_list net/core/net_namespace.c:172 [inline]
cleanup_net+0x3a7/0x610 net/core/net_namespace.c:640
process_one_work+0x374/0x780 kernel/workqueue.c:2292
worker_thread+0x30e/0x560 kernel/workqueue.c:2439
kthread+0xfc/0x130 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:2:876 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:13680 pid:876 ppid:2 flags:0x00004000
Workqueue: events rfkill_global_led_trigger_worker
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
rfkill_global_led_trigger_worker+0x15/0x80 net/rfkill/core.c:181
process_one_work+0x374/0x780 kernel/workqueue.c:2292
worker_thread+0x30e/0x560 kernel/workqueue.c:2439
kthread+0xfc/0x130 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task udevd:1177 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:13200 pid:1177 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
device_lock include/linux/device.h:837 [inline]
uevent_show+0xb7/0x180 drivers/base/core.c:2669
dev_attr_show+0x27/0x80 drivers/base/core.c:2372
sysfs_kf_seq_show+0x13d/0x1e0 fs/sysfs/file.c:59
seq_read_iter+0x1f1/0x5e0 fs/seq_file.c:230
call_read_iter include/linux/fs.h:2259 [inline]
new_sync_read fs/read_write.c:389 [inline]
vfs_read+0x1f5/0x420 fs/read_write.c:470
ksys_read+0xb1/0x160 fs/read_write.c:613
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd347719407
RSP: 002b:00007ffddd96f230 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007fd34762b880 RCX: 00007fd347719407
RDX: 0000000000001000 RSI: 000055ad7b446ce0 RDI: 000000000000000c
RBP: 00007fd347861ff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007fd347861ea0 R14: 0000000000000000 R15: 000055ad7b3cf790
INFO: task syz-executor:3294 blocked for more than 143 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:11616 pid:3294 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
rfkill_register+0x23/0x370 net/rfkill/core.c:1057
wiphy_register+0xd95/0xde0 net/wireless/core.c:1024
ieee80211_register_hw+0x13ba/0x1640 net/mac80211/main.c:1387
mac80211_hwsim_new_radio+0xf0f/0x17c0 drivers/net/wireless/mac80211_hwsim.c:4587
hwsim_new_radio_nl+0x4a9/0x5e0 drivers/net/wireless/mac80211_hwsim.c:5181
genl_family_rcv_msg_doit+0x103/0x160 net/netlink/genetlink.c:756
genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]
genl_rcv_msg+0x385/0x3d0 net/netlink/genetlink.c:850
netlink_rcv_skb+0x10c/0x1e0 net/netlink/af_netlink.c:2511
genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x459/0x510 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x552/0x630 net/netlink/af_netlink.c:1872
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x39e/0x470 net/socket.c:2153
__do_sys_sendto net/socket.c:2165 [inline]
__se_sys_sendto net/socket.c:2161 [inline]
__x64_sys_sendto+0x24/0x30 net/socket.c:2161
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6204650553
RSP: 002b:00007fffba18f268 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f6205334620 RCX: 00007f6204650553
RDX: 0000000000000024 RSI: 00007f6205334670 RDI: 0000000000000003
RBP: 0000000000000001 R08: 00007fffba18f284 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f6205334670 R15: 0000000000000000
INFO: task syz-executor:5482 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:11904 pid:5482 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
netlink_rcv_skb+0x10c/0x1e0 net/netlink/af_netlink.c:2511
genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x459/0x510 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x552/0x630 net/netlink/af_netlink.c:1872
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg net/socket.c:730 [inline]
__sys_sendto+0x39e/0x470 net/socket.c:2153
__do_sys_sendto net/socket.c:2165 [inline]
__se_sys_sendto net/socket.c:2161 [inline]
__x64_sys_sendto+0x24/0x30 net/socket.c:2161
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2968ae0553
RSP: 002b:00007fff93cb8358 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f29697c4620 RCX: 00007f2968ae0553
RDX: 0000000000000020 RSI: 00007f29697c4670 RDI: 0000000000000005
RBP: 0000000000000001 R08: 00007fff93cb8374 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005
R13: 00007fff93cb83c8 R14: 00007f29697c4670 R15: 0000000000000000
INFO: task syz.1.52:5523 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.52 state:D stack:13800 pid:5523 ppid:3283 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
rfkill_unregister+0x6c/0x100 net/rfkill/core.c:1130
nfc_unregister_device+0x6a/0x180 net/nfc/core.c:1167
virtual_ncidev_close+0x55/0x90 drivers/nfc/virtual_ncidev.c:170
__fput+0xee/0x450 fs/file_table.c:320
task_work_run+0xe3/0x110 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xc5/0xe0 kernel/entry/common.c:177
exit_to_user_mode_prepare+0x6c/0xc0 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x30 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f76625de719
RSP: 002b:00007ffcc2fd5c38 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000012c37 RCX: 00007f76625de719
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f7662797a80 R08: 0000000000000001 R09: 00007ffcc2fd5f2f
R10: 00007f7662460000 R11: 0000000000000246 R12: 0000000000012c6c
R13: 00007ffcc2fd5d40 R14: 0000000000000032 R15: ffffffffffffffff
INFO: task syz.5.50:5529 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.50 state:D stack:14392 pid:5529 ppid:3291 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
device_lock include/linux/device.h:837 [inline]
nfc_dev_down net/nfc/core.c:143 [inline]
nfc_rfkill_set_block+0x3e/0x140 net/nfc/core.c:179
rfkill_set_block+0xad/0x1d0 net/rfkill/core.c:345
rfkill_fop_write+0x2c0/0x320 net/rfkill/core.c:1286
do_loop_readv_writev fs/read_write.c:-1 [inline]
do_iter_write+0x21e/0x560 fs/read_write.c:863
vfs_writev+0x222/0x350 fs/read_write.c:934
do_writev+0xc5/0x1b0 fs/read_write.c:977
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f911d1ce719
RSP: 002b:00007f911cc4f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f911d385f80 RCX: 00007f911d1ce719
RDX: 0000000000000007 RSI: 0000000020000440 RDI: 0000000000000003
RBP: 00007f911d24139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f911d385f80 R15: 00007fffb9db1798
INFO: task syz.5.50:5537 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.50 state:D stack:14392 pid:5537 ppid:3291 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
misc_open+0x2a/0x190 drivers/char/misc.c:107
chrdev_open+0x28e/0x300 fs/char_dev.c:414
do_dentry_open+0x422/0x680 fs/open.c:882
do_open fs/namei.c:3626 [inline]
path_openat+0x1189/0x1640 fs/namei.c:3783
do_filp_open+0xc9/0x1b0 fs/namei.c:3810
do_sys_openat2+0xb4/0x260 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0xcb/0xf0 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f911d1ce719
RSP: 002b:00007f911cc2e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f911d386058 RCX: 00007f911d1ce719
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f911d24139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f911d386058 R15: 00007fffb9db1798
INFO: task syz.2.51:5531 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.51 state:D stack:14392 pid:5531 ppid:3285 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
rfkill_fop_open+0x9d/0x2c0 net/rfkill/core.c:1163
misc_open+0x15d/0x190 drivers/char/misc.c:143
chrdev_open+0x28e/0x300 fs/char_dev.c:414
do_dentry_open+0x422/0x680 fs/open.c:882
do_open fs/namei.c:3626 [inline]
path_openat+0x1189/0x1640 fs/namei.c:3783
do_filp_open+0xc9/0x1b0 fs/namei.c:3810
do_sys_openat2+0xb4/0x260 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0xcb/0xf0 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5ff60fe719
RSP: 002b:00007f5ff5b7f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5ff62b5f80 RCX: 00007f5ff60fe719
RDX: 0000000000000602 RSI: 00000000200000c0 RDI: ffffffffffffff9c
RBP: 00007f5ff617139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f5ff62b5f80 R15: 00007ffc7ab40828
INFO: task syz.2.51:5534 blocked for more than 144 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.51 state:D stack:14168 pid:5534 ppid:3285 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x574/0x880 kernel/sched/core.c:6561
schedule+0x50/0xb0 kernel/sched/core.c:6637
schedule_preempt_disabled+0x2e/0x40 kernel/sched/core.c:6696
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x44c/0x9b0 kernel/locking/mutex.c:747
misc_open+0x2a/0x190 drivers/char/misc.c:107
chrdev_open+0x28e/0x300 fs/char_dev.c:414
do_dentry_open+0x422/0x680 fs/open.c:882
do_open fs/namei.c:3626 [inline]
path_openat+0x1189/0x1640 fs/namei.c:3783
do_filp_open+0xc9/0x1b0 fs/namei.c:3810
do_sys_openat2+0xb4/0x260 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0xcb/0xf0 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5ff60fe719
RSP: 002b:00007f5ff5b5e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f5ff62b6058 RCX: 00007f5ff60fe719
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f5ff617139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5ff62b6058 R15: 00007ffc7ab40828
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff839a75d8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_one_gp kernel/rcu/tasks.h:517 [inline]
#0: ffffffff839a75d8 (rcu_tasks.tasks_gp_mutex){....}-{3:3}, at: rcu_tasks_kthread+0x97/0x4c0 kernel/rcu/tasks.h:562
1 lock held by khungtaskd/27:
#0: ffffffff839a7398 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff839a7398 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff839a7398 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2a/0xf0 kernel/locking/lockdep.c:6513
4 locks held by kworker/u4:3/42:
#0: ffff88810013b538 ((wq_completion)netns){....}-{0:0}, at: process_one_work+0x2f0/0x780 kernel/workqueue.c:2267
#1: ffffc9000037fe58 (net_cleanup_work){....}-{0:0}, at: process_one_work+0x2f0/0x780 kernel/workqueue.c:2267
#2: ffffffff83b43258 (pernet_ops_rwsem){....}-{3:3}, at: cleanup_net+0x55/0x610 net/core/net_namespace.c:594
#3: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x6c/0x100 net/rfkill/core.c:1130
3 locks held by kworker/0:2/876:
#0: ffff888100062538 ((wq_completion)events){....}-{0:0}, at: process_one_work+0x2f0/0x780 kernel/workqueue.c:2267
#1: ffffc900025a7e58 ((work_completion)(&rfkill_global_led_trigger_work)){....}-{0:0}, at: process_one_work+0x2f0/0x780 kernel/workqueue.c:2267
#2: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_global_led_trigger_worker+0x15/0x80 net/rfkill/core.c:181
4 locks held by udevd/1177:
#0: ffff888102aaf358 (&p->lock){....}-{3:3}, at: seq_read_iter+0x47/0x5e0 fs/seq_file.c:182
#1: ffff88810c3c8a88 (&of->mutex){....}-{3:3}, at: kernfs_seq_start+0x27/0x170 fs/kernfs/file.c:154
#2: ffff88810c69fc80 (kn->active#5){....}-{0:0}, at: kernfs_seq_start+0x2f/0x170 fs/kernfs/file.c:155
#3: ffff888110358900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#3: ffff888110358900 (&dev->mutex){....}-{3:3}, at: uevent_show+0xb7/0x180 drivers/base/core.c:2669
2 locks held by getty/1336:
#0: ffff8881052f1098 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x50 drivers/tty/tty_ldisc.c:244
#1: ffffc900028f32f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x231/0xba0 drivers/tty/n_tty.c:2198
3 locks held by syz-executor/3294:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
#2: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_register+0x23/0x370 net/rfkill/core.c:1057
2 locks held by syz-executor/5482:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz.1.52/5523:
#0: ffff888110358900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#0: ffff888110358900 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x51/0x180 net/nfc/core.c:1165
#1: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_unregister+0x6c/0x100 net/rfkill/core.c:1130
2 locks held by syz.5.50/5529:
#0: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_fop_write+0xf6/0x320 net/rfkill/core.c:1278
#1: ffff888110358900 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:837 [inline]
#1: ffff888110358900 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline]
#1: ffff888110358900 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x3e/0x140 net/nfc/core.c:179
1 lock held by syz.5.50/5537:
#0: ffffffff83a97b28 (misc_mtx){....}-{3:3}, at: misc_open+0x2a/0x190 drivers/char/misc.c:107
2 locks held by syz.2.51/5531:
#0: ffffffff83a97b28 (misc_mtx){....}-{3:3}, at: misc_open+0x2a/0x190 drivers/char/misc.c:107
#1: ffffffff83bd4d60 (rfkill_global_mutex){....}-{3:3}, at: rfkill_fop_open+0x9d/0x2c0 net/rfkill/core.c:1163
1 lock held by syz.2.51/5534:
#0: ffffffff83a97b28 (misc_mtx){....}-{3:3}, at: misc_open+0x2a/0x190 drivers/char/misc.c:107
2 locks held by syz-executor/5692:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/5695:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/5696:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/5974:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6068:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6163:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6165:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6166:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6444:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6538:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6633:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6634:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
2 locks held by syz-executor/6636:
#0: ffffffff83b5c2a0 (cb_lock){....}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff83b5c178 (genl_mutex){....}-{3:3}, at: genl_rcv_msg+0x6d/0x3d0 net/netlink/genetlink.c:848
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
dump_stack_lvl+0xe7/0x17e lib/dump_stack.c:106
nmi_cpu_backtrace+0x220/0x240 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x108/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0x82e/0x870 kernel/hung_task.c:377
kthread+0xfc/0x130 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1504 Comm: kworker/u4:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:_flat_send_IPI_mask arch/x86/kernel/apic/apic_flat_64.c:55 [inline]
RIP: 0010:flat_send_IPI_mask+0x15/0x80 arch/x86/kernel/apic/apic_flat_64.c:64
Code: 80 00 00 00 00 89 f8 8b 80 00 c0 5f ff c3 0f 1f 80 00 00 00 00 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 8b 3f <48> c7 04 24 00 00 00 00 9c 8f 04 24 48 8b 1c 24 fa ba 00 08 00 00
RSP: 0018:ffffc9000227fc58 EFLAGS: 00000282
RAX: 7fcf9c131ceade00 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffffffff83863a80 RSI: 00000000000000fb RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff888237d2cbd0
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888237d2cbc0
R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559367506168 CR3: 000000000383a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
smp_call_function_many_cond+0x4ad/0x7a0 kernel/smp.c:978
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1574 [inline]
text_poke_bp_batch+0x1fb/0x2d0 arch/x86/kernel/alternative.c:1836
text_poke_flush arch/x86/kernel/alternative.c:1965 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1972
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_disable_cpuslocked kernel/jump_label.c:237 [inline]
static_key_disable+0x60/0x90 kernel/jump_label.c:245
toggle_allocation_gate+0x28d/0x2e0 mm/kfence/core.c:819
process_one_work+0x374/0x780 kernel/workqueue.c:2292
worker_thread+0x30e/0x560 kernel/workqueue.c:2439
kthread+0xfc/0x130 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295