ci starts bisection 2026-10-02 02:57:25.024540364 +0000 UTC m=+16384.335965711 bisecting cause commit starting from d24e8ac715de2e16a53c144005b1863660a5fbea building syzkaller on 38f7f0d1b72602afb2b8328c83c6eed1f20a5336 ensuring issue is reproducible on original commit d24e8ac715de2e16a53c144005b1863660a5fbea testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 278221944dfc8b177409d619058ddd24557d0da8160475763c551014120ed8c5 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] check whether we can drop unnecessary instrumentation disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 8c6c58f78bff2eff04f5c399e6b0f032621ea89effc401b03bb0b97d936c1233 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] the bug reproduces without the instrumentation disabling configs for [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed kconfig minimization: base=4175 full=8664 leaves diff=2143 split chunks (needed=false): <2143> split chunk #0 of len 2143 into 5 parts testing without sub-chunk 1/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 9e157216f5eb6eccaa9b942824797ff46e72cfc1c3f586ac1f272706c2d9c089 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 0c6017245c090b65134a10e4286e00f485cbe9bd6bc5a6ce955c3488fd12d0d1 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 91cbdb2b9a99b6d56d0a22978afdfcb43c18fcbe6740c6ce4f661fb301ea367e all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: db61500cc9374cc72f729161ab23abf24ffe81a52370ad40e12dfab6c4e9c0bc all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing commit d24e8ac715de2e16a53c144005b1863660a5fbea gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 617bb777570d7401eb9e95c3ed00de6d4133fff4def9b75bd6c513ca52eab411 all runs: OK false negative chance: 0.000 minimized to 856 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_NHLT ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_HAS_DELAY_TIMER ARCH_HAS_PMD_SOFTLEAVES ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_DRIVERS AX88796B_PHY BALLOON BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BCACHE BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLKDEV_UBLK_LEGACY_OPCODES BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_UBLK BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_SYSCALL BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_NF_EBTABLES_LEGACY BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_ESD_USB CAN_ETAS_ES58X CAN_F81604 CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CARDBUS CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MAX CMDLINE_PARTITION COMEDI COMEDI_8254 COMEDI_8255 COMEDI_8255_PCI COMEDI_8255_SA COMEDI_ADL_PCI9118 COMEDI_ADQ12B COMEDI_AIO_AIO12_8 COMEDI_AIO_IIRO_16 COMEDI_AMPLC_DIO200 COMEDI_AMPLC_DIO200_ISA COMEDI_AMPLC_PC236 COMEDI_AMPLC_PC236_ISA COMEDI_AMPLC_PC263_ISA COMEDI_BOND COMEDI_C6XDIGIO COMEDI_DAC02 COMEDI_DAS08 COMEDI_DAS08_ISA COMEDI_DAS16M1 COMEDI_DAS1800 COMEDI_DAS6402 COMEDI_DAS800 COMEDI_DMM32AT COMEDI_DT2801 COMEDI_DT2811 COMEDI_DT2814 COMEDI_DT2815 COMEDI_DT2817 COMEDI_DT282X COMEDI_DT9812 COMEDI_FL512 COMEDI_ISADMA COMEDI_ISA_DRIVERS COMEDI_KCOMEDILIB COMEDI_MISC_DRIVERS COMEDI_MPC624 COMEDI_MULTIQ3 COMEDI_NI_ATMIO16D COMEDI_NI_AT_A2150 COMEDI_NI_AT_AO COMEDI_NI_DAQ_700_CS COMEDI_NI_LABPC COMEDI_NI_LABPC_CS COMEDI_NI_LABPC_ISA COMEDI_NI_LABPC_ISADMA COMEDI_NI_LABPC_PCI COMEDI_NI_USB6501 COMEDI_PARPORT COMEDI_PCI_DRIVERS COMEDI_PCL711 COMEDI_PCL724 COMEDI_PCL726 COMEDI_PCL730 COMEDI_PCL812 COMEDI_PCL816 COMEDI_PCL818 COMEDI_PCM3724 COMEDI_PCMAD COMEDI_PCMCIA_DRIVERS COMEDI_PCMDA12 COMEDI_PCMMIO COMEDI_PCMUIO COMEDI_RTI800 COMEDI_RTI802 COMEDI_S526 COMEDI_TEST COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMMON_CLK COMPAT_NETLINK_MESSAGES CONTIG_ALLOC COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC64 CRC64_ARCH CRC8 CRC_CCITT CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 CRYPTO_ACOMP CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KPP2 CRYPTO_LIB_AES_XTS CRYPTO_LIB_ARC4 CRYPTO_LIB_BLAKE2B CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_ARCH CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_ARCH CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_GF128MUL CRYPTO_LIB_NH CRYPTO_LIB_NH_ARCH CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_ARCH CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_LZ4HC CRYPTO_NULL CRYPTO_PCRYPT CRYPTO_RMD160 CRYPTO_RNG CRYPTO_RNG2 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA3 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DEV_DAX_FSDEV DIBS DIBS_LO DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_AUX_HPD_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_FBDEV_EMULATION DVB_CORE ENCRYPTED_KEYS EXTCON FSCACHE FS_DAX FUSE_FS GPIOLIB HAVE_ARCH_USERFAULTFD_WP HID_DRAGONRISE HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOMMUFD IOSCHED_BFQ ISA_BUS KVM KVM_INTEL LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MMC MODVERSIONS MTD NETFILTER_XTABLES_LEGACY NET_CLS_U32 NET_SCH_DEFAULT NOP_USB_XCEIV PARPORT PARTITION_ADVANCED PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SERIAL_DEV_BUS SND SOUND SPI SSB TAP TARGET_CORE TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS TUN USB_AMD5536UDC USB_ATM USB_CDNS3 USB_CDNS3_GADGET USB_CDNS3_HOST USB_CDNS3_PCI_WRAP USB_CDNSP_PCI USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_GENERIC_PLAT USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PHY USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU 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USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERFAULTFD_RWP USERIO USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VIRT_XFER_TO_GUEST_WORK VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXLAN WANT_COMPAT_NETLINK_MESSAGES WANT_DEV_COREDUMP WEXT_CORE WEXT_PROC WIREGUARD WIRELESS WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_ATH WLAN_VENDOR_MORSEMICRO WLAN_VENDOR_NXP WLAN_VENDOR_SILABS X86_FRED X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_IPTFS XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_BTREE_IN_MEM XFS_DRAIN_INTENTS XFS_FS XFS_LIVE_HOOKS XFS_MEMORY_BUFS XFS_ONLINE_REPAIR XFS_ONLINE_SCRUB XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS XOR_BLOCKS_ARCH YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON] disabling configs for [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed picked [v7.2 v7.1 v7.0 v6.18 v6.16 v6.14 v6.12 v6.10 v6.7 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 45 release tags testing release v7.2 testing commit 8d3ae59288f1e7d58d76558a6ee96d533bc5019f gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: feffc1fdbb65dcc65a204dd84346e2d7736aaf5376bfef63586842a397011a50 all runs: OK false negative chance: 0.000 # git bisect start d24e8ac715de2e16a53c144005b1863660a5fbea 8d3ae59288f1e7d58d76558a6ee96d533bc5019f Bisecting: 10162 revisions left to test after this (roughly 13 steps) [56ea4e86832d8abe8930394473566c194d189f85] nstree: check listing permission before taking a namespace reference testing commit 56ea4e86832d8abe8930394473566c194d189f85 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: f4e1ad795c202f93ac5ece9023a0bf4cdd8c8dc28a1b9fd5ea40cc154b1766da all runs: OK false negative chance: 0.000 # git bisect good 56ea4e86832d8abe8930394473566c194d189f85 Bisecting: 5003 revisions left to test after this (roughly 12 steps) [29b0977977d7b77b192e434d1a94628cf006f795] Merge tag 'staging-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging testing commit 29b0977977d7b77b192e434d1a94628cf006f795 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 3a9780e7559b8be7b7caafb67f5bbeb4da8f71a50fba6063f80ab9624e364583 all runs: OK false negative chance: 0.000 # git bisect good 29b0977977d7b77b192e434d1a94628cf006f795 Bisecting: 2502 revisions left to test after this (roughly 11 steps) [65119e86fe463cdc96455539020fa75b02f2cf91] Merge tag 'pmdomain-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm testing commit 65119e86fe463cdc96455539020fa75b02f2cf91 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 11b14ae53b0dbfd5e6e45f9a4bad345b2a294da8701dfcef988553fcf7474a44 all runs: OK false negative chance: 0.000 # git bisect good 65119e86fe463cdc96455539020fa75b02f2cf91 Bisecting: 1258 revisions left to test after this (roughly 10 steps) [4982d3552a3bf94de503acf93433277d08421de6] Merge tag 'sound-7.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 4982d3552a3bf94de503acf93433277d08421de6 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 969fc412821344f292ecd64496ac4e3c1cb8483e5b33cb1b6c5e87753d36a5ad all runs: OK false negative chance: 0.000 # git bisect good 4982d3552a3bf94de503acf93433277d08421de6 Bisecting: 635 revisions left to test after this (roughly 9 steps) [5fc5768c7ca92895ccd1de94dc521e5a55ae7896] Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf testing commit 5fc5768c7ca92895ccd1de94dc521e5a55ae7896 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: bd8bc983fa0e03cc2c4c11db83510ac55b80f828b68d16d5d2558f202bd3402e all runs: OK false negative chance: 0.000 # git bisect good 5fc5768c7ca92895ccd1de94dc521e5a55ae7896 Bisecting: 322 revisions left to test after this (roughly 8 steps) [6e0022b5ae3dc5b833af0fcc1578dc20a1d6bc71] net: phy: aquantia: fix system interface type not updated in forced mode testing commit 6e0022b5ae3dc5b833af0fcc1578dc20a1d6bc71 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: b855ec4f6be855a8b47a60277b2d34ea71b8ef224c66498bf5f92d376a831e00 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] # git bisect bad 6e0022b5ae3dc5b833af0fcc1578dc20a1d6bc71 Bisecting: 156 revisions left to test after this (roughly 7 steps) [d6ec384c87cc851cfd13bb18c99ce351ccee6192] net/sched: act_ife: validate metadata length before decoding testing commit d6ec384c87cc851cfd13bb18c99ce351ccee6192 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 5fe2cbde753c4c7e2caefcb0b8f29ed44d9a7f4e2a6319cf9bdbf0af0faffd9f all runs: OK false negative chance: 0.000 # git bisect good d6ec384c87cc851cfd13bb18c99ce351ccee6192 Bisecting: 82 revisions left to test after this (roughly 6 steps) [04c824940d52871c49866a4ac67b504146f7cf35] net/mlx5: Fix slab-out-of-bounds when handling team device events testing commit 04c824940d52871c49866a4ac67b504146f7cf35 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 0e2946dfad47832ea6bdc1c9814e2cb5abeb05a31133b4380549c747e06613ea all runs: OK false negative chance: 0.000 # git bisect good 04c824940d52871c49866a4ac67b504146f7cf35 Bisecting: 41 revisions left to test after this (roughly 5 steps) [0d2c49915bc3aea4521cda5e4d42f24f63b94585] net: sparx5: skip ptp deinit if init was skipped testing commit 0d2c49915bc3aea4521cda5e4d42f24f63b94585 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: ea94b725ef5205047fc055c73de4b347c7458a1673308dcfc7430bbfd01db15f all runs: OK false negative chance: 0.000 # git bisect good 0d2c49915bc3aea4521cda5e4d42f24f63b94585 Bisecting: 21 revisions left to test after this (roughly 4 steps) [7f93ca31f7fd9b42e7d692f59514436d448ac908] wifi: mac80211: prevent AP VLAN tx from other interfaces testing commit 7f93ca31f7fd9b42e7d692f59514436d448ac908 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: be91e07eccaaf873899495c5025ab6eda8863b63e2b9350a0768aa3374dbf02c all runs: OK false negative chance: 0.000 # git bisect good 7f93ca31f7fd9b42e7d692f59514436d448ac908 Bisecting: 8 revisions left to test after this (roughly 4 steps) [be35a3e003941fc25b4e72d8d4fd44f8a98ac1af] Merge tag 'wireless-2026-09-30' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless testing commit be35a3e003941fc25b4e72d8d4fd44f8a98ac1af gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 251e38bb57456291744e61910ccc09158968955a796f767b7f6f2c36d68ec65b all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] # git bisect bad be35a3e003941fc25b4e72d8d4fd44f8a98ac1af Bisecting: 6 revisions left to test after this (roughly 3 steps) [4febc02cd02f021f2b6d0768332be643ef14a12d] wifi: mac80211: set info->band for 802.3 encap offload frames testing commit 4febc02cd02f021f2b6d0768332be643ef14a12d gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: d2ea550f70981d6ddf93c3a5df9a05a70618c135fd6a91b8bdf6a6e971365fb0 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] # git bisect bad 4febc02cd02f021f2b6d0768332be643ef14a12d Bisecting: 2 revisions left to test after this (roughly 2 steps) [93ce8ea70451e800601bc9444aa33043de15d67b] wifi: ath9k: reject short WMI command responses testing commit 93ce8ea70451e800601bc9444aa33043de15d67b gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 492c0b63edfd83c6560dd17bac9605e7f243c6d7be943c3f3348f902c1c5686c all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] # git bisect bad 93ce8ea70451e800601bc9444aa33043de15d67b Bisecting: 0 revisions left to test after this (roughly 1 step) [1af8dc9ca726cf53767f9c0661171396f95c146a] wifi: ath9k: Clean up device initialisation guards testing commit 1af8dc9ca726cf53767f9c0661171396f95c146a gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: 569196ea56effcdb2dfb3a0bceaa2d5790fc915dde77f34986100e38cc602fc1 all runs: crashed: KASAN: slab-use-after-free Read in tasklet_action_common representative crash: KASAN: slab-use-after-free Read in tasklet_action_common, types: [KASAN-USE-AFTER-FREE-READ] # git bisect bad 1af8dc9ca726cf53767f9c0661171396f95c146a Bisecting: 0 revisions left to test after this (roughly 0 steps) [7e0ad05ebc72fffba2bdf2400400902d94ed7272] wifi: ath11k: reset ar->num_stations on hardware start testing commit 7e0ad05ebc72fffba2bdf2400400902d94ed7272 gcc compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 kernel signature: fc37aad6723888aac9a6b9b48101a798c3f784fd736832b8bec2654c7bcbcae4 all runs: OK false negative chance: 0.000 # git bisect good 7e0ad05ebc72fffba2bdf2400400902d94ed7272 1af8dc9ca726cf53767f9c0661171396f95c146a is the first bad commit commit 1af8dc9ca726cf53767f9c0661171396f95c146a Author: Toke Høiland-Jørgensen Date: Tue Sep 8 19:05:18 2026 +0200 wifi: ath9k: Clean up device initialisation guards The ath9k driver has a couple of guards against the RX path running until device initialisation has completed. However, they are problematic for several reasons: - They use smp_wmb() paired with a data_race() annotation, instead of the idiomatic smp_store_release()/smp_load_acquire() pair. - The guard in ath9k_wmi_event_tasklet() is weirdly late in the function. - There are two of them when there's really no reason the rx init gets to run before the whole initialisation is complete. Consolidate the guards on the single ath9k_htc_priv->initialized variable and use smp_store_release()/smp_load_acquire() to access it. Move the store into ath9k_init_device() to make sure it's set in all paths in the driver. Fixes: 24355fcb0d4c ("wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete") Fixes: b0ec7e55fce6 ("ath9k_htc: fix NULL pointer dereference at ath9k_htc_rxep()") Signed-off-by: Toke Høiland-Jørgensen Link: https://patch.msgid.link/20260908170520.112946-1-toke@redhat.com Signed-off-by: Jeff Johnson drivers/net/wireless/ath/ath9k/htc.h | 1 - drivers/net/wireless/ath/ath9k/htc_drv_init.c | 7 +++---- drivers/net/wireless/ath/ath9k/htc_drv_txrx.c | 8 ++------ drivers/net/wireless/ath/ath9k/wmi.c | 12 ++++++------ 4 files changed, 11 insertions(+), 17 deletions(-) accumulated error probability: 0.00 culprit signature: 569196ea56effcdb2dfb3a0bceaa2d5790fc915dde77f34986100e38cc602fc1 parent signature: fc37aad6723888aac9a6b9b48101a798c3f784fd736832b8bec2654c7bcbcae4 revisions tested: 23, total time: 12h9m1.954487104s (build: 6h32m30.686416166s, test: 3h52m31.004988129s) first bad commit: 1af8dc9ca726cf53767f9c0661171396f95c146a wifi: ath9k: Clean up device initialisation guards recipients (to): ["jeff.johnson@oss.qualcomm.com" "linux-wireless@vger.kernel.org" "toke@redhat.com" "toke@toke.dk"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: KASAN: slab-use-after-free Read in tasklet_action_common ================================================================== BUG: KASAN: slab-use-after-free in tasklet_action_common+0xc1/0x6b0 kernel/softirq.c:954 Read of size 8 at addr ffff88817caba158 by task ksoftirqd/0/15 CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0x52/0x80 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report+0x117/0x150 mm/kasan/report.c:595 tasklet_action_common+0xc1/0x6b0 kernel/softirq.c:954 handle_softirqs+0x1c1/0x570 kernel/softirq.c:645 run_ksoftirqd+0x28/0x40 kernel/softirq.c:1099 smpboot_thread_fn+0x446/0x7f0 kernel/smpboot.c:160 kthread+0x297/0x340 kernel/kthread.c:436 ret_from_fork+0x29c/0x620 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Allocated by task 11: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x2e9/0x580 mm/slub.c:5563 _kmalloc_noprof include/linux/slab.h:991 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] ath9k_init_wmi+0x4a/0x2a0 drivers/net/wireless/ath/ath9k/wmi.c:95 ath9k_htc_probe_device+0x1c1/0x2140 drivers/net/wireless/ath/ath9k/htc_drv_init.c:956 ath9k_htc_hw_init+0x9/0x30 drivers/net/wireless/ath/ath9k/htc_hst.c:532 ath9k_hif_usb_firmware_cb+0x219/0x460 drivers/net/wireless/ath/ath9k/hif_usb.c:1256 request_firmware_work_func+0xf2/0x2b0 drivers/base/firmware_loader/main.c:1164 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xa3d/0x1620 kernel/workqueue.c:3479 worker_thread+0x807/0xc40 kernel/workqueue.c:3560 kthread+0x297/0x340 kernel/kthread.c:436 ret_from_fork+0x29c/0x620 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Freed by task 11: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2748 [inline] slab_free mm/slub.c:6499 [inline] kfree+0x1ad/0x520 mm/slub.c:6792 ath9k_htc_probe_device+0x1729/0x2140 drivers/net/wireless/ath/ath9k/htc_drv_init.c:978 ath9k_htc_hw_init+0x9/0x30 drivers/net/wireless/ath/ath9k/htc_hst.c:532 ath9k_hif_usb_firmware_cb+0x219/0x460 drivers/net/wireless/ath/ath9k/hif_usb.c:1256 request_firmware_work_func+0xf2/0x2b0 drivers/base/firmware_loader/main.c:1164 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xa3d/0x1620 kernel/workqueue.c:3479 worker_thread+0x807/0xc40 kernel/workqueue.c:3560 kthread+0x297/0x340 kernel/kthread.c:436 ret_from_fork+0x29c/0x620 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 The buggy address belongs to the object at ffff88817caba000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 344 bytes inside of freed 2048-byte region [ffff88817caba000, ffff88817caba800) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17cab8 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x100000000000040(head|node=0|zone=2) page_type: f5(slab) raw: 0100000000000040 ffff888100042000 dead000000000100 dead000000000122 raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 head: 0100000000000040 ffff888100042000 dead000000000100 dead000000000122 head: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 head: 0100000000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1085, tgid 1085 (kworker/0:2), ts 66596819509 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x112/0x140 mm/page_alloc.c:1871 prep_new_page mm/page_alloc.c:1879 [inline] get_page_from_freelist+0x2d86/0x2e00 mm/page_alloc.c:3943 __alloc_frozen_pages_noprof+0x27e/0x550 mm/page_alloc.c:5436 alloc_slab_page mm/slub.c:3347 [inline] allocate_slab+0x7c/0x570 mm/slub.c:3462 new_slab mm/slub.c:3513 [inline] refill_objects+0x33f/0x3b0 mm/slub.c:7410 refill_sheaf mm/slub.c:2885 [inline] __pcs_replace_empty_main+0x25d/0x520 mm/slub.c:4774 alloc_from_pcs mm/slub.c:4850 [inline] slab_alloc_node mm/slub.c:4984 [inline] __do_kmalloc_node mm/slub.c:5413 [inline] __kmalloc_node_track_caller_noprof+0x4f2/0x690 mm/slub.c:5545 kmalloc_reserve net/core/skbuff.c:637 [inline] __alloc_skb+0x1e5/0x5e0 net/core/skbuff.c:715 alloc_skb include/linux/skbuff.h:1384 [inline] mld_newpack+0x148/0x920 net/ipv6/mcast.c:1810 add_grhead net/ipv6/mcast.c:1921 [inline] add_grec+0xbd8/0xfd0 net/ipv6/mcast.c:2060 mld_send_initial_cr net/ipv6/mcast.c:2305 [inline] mld_dad_work+0x286/0x810 net/ipv6/mcast.c:2331 process_one_work kernel/workqueue.c:3396 [inline] process_scheduled_works+0xa3d/0x1620 kernel/workqueue.c:3479 worker_thread+0x807/0xc40 kernel/workqueue.c:3560 kthread+0x297/0x340 kernel/kthread.c:436 ret_from_fork+0x29c/0x620 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 page last free pid 4277 tgid 4277 ts 65967781808 stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] __free_pages_prepare mm/page_alloc.c:1418 [inline] __free_frozen_pages+0xc54/0xd40 mm/page_alloc.c:2962 __slab_free+0x237/0x280 mm/slub.c:5815 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] __do_kmalloc_node mm/slub.c:5413 [inline] __kmalloc_noprof+0x2c3/0x670 mm/slub.c:5439 _kmalloc_noprof include/linux/slab.h:995 [inline] tomoyo_realpath_from_path+0xf7/0x550 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x242/0x520 security/tomoyo/file.c:827 security_inode_getattr+0xb0/0x150 security/security.c:1895 vfs_getattr fs/stat.c:259 [inline] vfs_fstat fs/stat.c:281 [inline] __do_sys_newfstat fs/stat.c:551 [inline] __se_sys_newfstat+0x121/0x3d0 fs/stat.c:546 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xca/0x370 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f Memory state around the buggy address: ffff88817caba000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88817caba080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88817caba100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88817caba180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88817caba200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================