ci starts bisection 2024-12-17 09:13:22.908035664 +0000 UTC m=+68253.247652625 bisecting cause commit starting from 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 building syzkaller on f93b2b552ce5fe589b450ff74ca1b459cdbc71a8 ensuring issue is reproducible on original commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c3ba3597c6f91ef1bcf243a5c506cb2cc3a0d045ccb43e00387f32ddf301815 all runs: crashed: general protection fault in put_page representative crash: general protection fault in put_page, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c7425904fe7966a1220a4e8180f959f76c93a3c98791f4643260b4efd0f32142 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref representative crash: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=4045 full=8242 leaves diff=2124 split chunks (needed=false): <2124> split chunk #0 of len 2124 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b185ff6c3ee593749f7719983afa4eb77870fdc83d501d2062255de9e57988a9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref representative crash: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 failed building 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8: drivers/gpu/drm/bridge/aux-bridge.c:116: undefined reference to `devm_drm_of_get_bridge' testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f55dc3f68027997acea15404875431094933927feb2be308921f41454e4d5d62 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref representative crash: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 64a5fb02f92aff11ed6f2f49077a40115fe94a313d89590d4958ad7486b92da7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref representative crash: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 969f7fa0d21154effd5e2ed33901ebfaa927e15f3a4d05f8a5eb73d93eb813b7 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref representative crash: BUG: unable to handle kernel NULL pointer dereference in __skb_frag_unref, types: [UNKNOWN] the chunk can be dropped minimized to 425 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI CHARGER_BQ24190 CMA COMMON_CLK DAX DLM DRM DRM_BRIDGE DRM_I915 DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_BACKED_BY_FILE EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENERIC_PHY GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_WEIGHT GTP GUEST_PERF_EVENTS GVE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_NAT IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_MASQUERADE IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_PROTO_TCP IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE MAC802154 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 MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG], they are not needed picked [v6.12 v6.11 v6.10 v6.8 v6.6 v6.4 v6.2 v6.0 v5.17 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 35 release tags testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5d572861cc9ac5418214c2a1f0e5c78fe8881e72d6db2ae7dcdeb151bba5a1ed all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1cf0220c600337ca8e1f6d3ebea74f1b71d5288821f46c4f72c62a9601e835b7 all runs: OK false negative chance: 0.000 # git bisect start adc218676eef25575469234709c2d87185ca223a 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 7334 revisions left to test after this (roughly 13 steps) [509d2cd12a10d057fdf72f565b930f9a81140d59] Merge tag 'Smack-for-6.12' of https://github.com/cschaufler/smack-next testing commit 509d2cd12a10d057fdf72f565b930f9a81140d59 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 777844a3340f25405871f6fdfdc60590f113507806d6b0b2cf74d65c423434e9 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 509d2cd12a10d057fdf72f565b930f9a81140d59 Bisecting: 3636 revisions left to test after this (roughly 12 steps) [7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf] Merge tag 'soc-dt-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 41b3f64b3a4a72d66c09efa560927c1a4e4e3e3bded03c1b3b88e1f20a03c7d4 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 7b17f5ebd5fc5e9275eaa5af3d0771f2a7b01bbf Bisecting: 1828 revisions left to test after this (roughly 11 steps) [64dd3b6a79f0907d36de481b0f15fab323a53e5a] Merge tag 'for-linus-non-x86' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit 64dd3b6a79f0907d36de481b0f15fab323a53e5a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b2fb5d71481bf44f262f2714dfcee1055c86e72a95f5bdb0d2e89aa5e62c14ed all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 64dd3b6a79f0907d36de481b0f15fab323a53e5a Bisecting: 902 revisions left to test after this (roughly 10 steps) [e10034e38e9da2a644f2aa73f2f46bb7beb8620b] netlink: specs: nftables: allow decode of tailscale ruleset testing commit e10034e38e9da2a644f2aa73f2f46bb7beb8620b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b97857148a12f73ee868726ac47a19e2319298cd8325e843796013617e494b3a all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad e10034e38e9da2a644f2aa73f2f46bb7beb8620b Bisecting: 447 revisions left to test after this (roughly 9 steps) [e540e3bcf2a26e02cf2d6295a38773c1e415e375] Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next testing commit e540e3bcf2a26e02cf2d6295a38773c1e415e375 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bcc08662348f37daeb7d4095c228bcdd0b0b5af11bd0661ad7476f9a3af27207 all runs: OK false negative chance: 0.000 # git bisect good e540e3bcf2a26e02cf2d6295a38773c1e415e375 Bisecting: 223 revisions left to test after this (roughly 8 steps) [eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc] octeontx2-pf: Remove setting of RX software timestamp testing commit eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c02527545ea8f4a139a0cc454c28f4a9a97aa903c4f1f7b009719dd594f3fdc9 all runs: OK false negative chance: 0.000 # git bisect good eb87a1daf6fb3b1ba8f19d94e243a638a844a7cc Bisecting: 111 revisions left to test after this (roughly 7 steps) [a08cf01905dfd7884d41db782667420500bdd90e] wifi: iwlwifi: mvm: handle the new EML OMN failure notification testing commit a08cf01905dfd7884d41db782667420500bdd90e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3eb3ac824355a997fc111a874c2f6977c7790e27631b3403ee44a880412a5192 all runs: OK false negative chance: 0.000 # git bisect good a08cf01905dfd7884d41db782667420500bdd90e Bisecting: 63 revisions left to test after this (roughly 6 steps) [d57f7b45945ac0517ff8ea50655f00db6e8d637c] net: cadence: macb: Enable software IRQ coalescing by default testing commit d57f7b45945ac0517ff8ea50655f00db6e8d637c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a1375afa32e69d9239609a38c2175103d57023136b1d4bf44c9434ab39e614ff all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad d57f7b45945ac0517ff8ea50655f00db6e8d637c Bisecting: 23 revisions left to test after this (roughly 5 steps) [6647f2fd8df056d2bc7c74e25469388ad375d98d] net: sparx5: use library helper for freeing rx buffers testing commit 6647f2fd8df056d2bc7c74e25469388ad375d98d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a88223067a5e503a95981f4889f19e7f783ea9e9ae95a06aa2a03952a71335d all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 6647f2fd8df056d2bc7c74e25469388ad375d98d Bisecting: 11 revisions left to test after this (roughly 4 steps) [0e2b4584d61abe8dc22db18e83c85429782793ee] selftests: mptcp: join: simplify checksum_tests testing commit 0e2b4584d61abe8dc22db18e83c85429782793ee gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ebd9fc53d6a7c66fe7057cd2f4935a6f1cbe964582d7cf59ea9fe61ecfa95bbe all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 0e2b4584d61abe8dc22db18e83c85429782793ee Bisecting: 5 revisions left to test after this (roughly 3 steps) [1b2965a8cd8d444cbea891e55083b5987d00cc66] selftests: mptcp: join: reduce join_nr params testing commit 1b2965a8cd8d444cbea891e55083b5987d00cc66 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 414c401127a005a584b68e86d80eac7fbba745476450690d7d00a7106c07f1d1 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 1b2965a8cd8d444cbea891e55083b5987d00cc66 Bisecting: 2 revisions left to test after this (roughly 2 steps) [7bcf4d8022f93c0af15a11f962fa55892853f2c0] mptcp: pm: rename helpers linked to 'flush' testing commit 7bcf4d8022f93c0af15a11f962fa55892853f2c0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 88c550209dd2ea0c6ed5ccf0cb21cc1abf99795ed00e68e33179c95801a811dd all runs: OK false negative chance: 0.000 # git bisect good 7bcf4d8022f93c0af15a11f962fa55892853f2c0 Bisecting: 0 revisions left to test after this (roughly 1 step) [1bd1788b6cabfe86fe1ced5a6324831f6a3081a1] mptcp: MIB counters for sent MP_JOIN testing commit 1bd1788b6cabfe86fe1ced5a6324831f6a3081a1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e974587dcda26aef5488bde64c15ee5421af86a02de2c2a3c3e703dafc6108e0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad 1bd1788b6cabfe86fe1ced5a6324831f6a3081a1 Bisecting: 0 revisions left to test after this (roughly 0 steps) [b83fbca1b4c9c45628aa55d582c14825b0e71c2b] mptcp: pm: reduce entries iterations on connect testing commit b83fbca1b4c9c45628aa55d582c14825b0e71c2b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e2e94ee066a4acbd6e9fade1c3d7927a72bca9478808e1ee2079d28a7b18d982 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in skb_release_data representative crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data, types: [UNKNOWN] # git bisect bad b83fbca1b4c9c45628aa55d582c14825b0e71c2b b83fbca1b4c9c45628aa55d582c14825b0e71c2b is the first bad commit commit b83fbca1b4c9c45628aa55d582c14825b0e71c2b Author: Matthieu Baerts (NGI0) Date: Mon Sep 2 12:45:53 2024 +0200 mptcp: pm: reduce entries iterations on connect __mptcp_subflow_connect() is currently called from the path-managers, which have all the required information to create subflows. No need to call the PM again to re-iterate over the list of entries with RCU lock to get more info. Instead, it is possible to pass a mptcp_pm_addr_entry structure, instead of a mptcp_addr_info one. The former contains the ifindex and the flags that are required when creating the new subflow. This is a partial revert of commit ee285257a9c1 ("mptcp: drop flags and ifindex arguments"). While at it, the local ID can also be set if it is known and 0, to avoid having to set it in the 'rebuild_header' hook, which will cause a new iteration of the endpoint entries. Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20240902-net-next-mptcp-mib-mpjtx-misc-v1-2-d3e0f3773b90@kernel.org Signed-off-by: Jakub Kicinski net/mptcp/pm.c | 11 -------- net/mptcp/pm_netlink.c | 66 ++++++++++++++++++------------------------------ net/mptcp/pm_userspace.c | 40 ++++++++++------------------- net/mptcp/protocol.h | 16 +++++------- net/mptcp/subflow.c | 29 +++++++++++++-------- 5 files changed, 62 insertions(+), 100 deletions(-) accumulated error probability: 0.00 culprit signature: e2e94ee066a4acbd6e9fade1c3d7927a72bca9478808e1ee2079d28a7b18d982 parent signature: 88c550209dd2ea0c6ed5ccf0cb21cc1abf99795ed00e68e33179c95801a811dd revisions tested: 22, total time: 5h15m56.619318946s (build: 2h34m5.317584686s, test: 2h24m59.934207014s) first bad commit: b83fbca1b4c9c45628aa55d582c14825b0e71c2b mptcp: pm: reduce entries iterations on connect recipients (to): ["kuba@kernel.org" "martineau@kernel.org" "matttbe@kernel.org"] recipients (cc): [] crash: BUG: unable to handle kernel NULL pointer dereference in skb_release_data BUG: kernel NULL pointer dereference, address: 0000000000000008 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP PTI CPU: 1 UID: 0 PID: 2675 Comm: syz.0.281 Not tainted 6.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:_compound_head include/linux/page-flags.h:240 [inline] RIP: 0010:put_page include/linux/mm.h:1550 [inline] RIP: 0010:skb_page_unref include/linux/skbuff_ref.h:44 [inline] RIP: 0010:__skb_frag_unref include/linux/skbuff_ref.h:57 [inline] RIP: 0010:skb_release_data+0xf1/0x200 net/core/skbuff.c:1120 Code: 00 0f 84 ab 00 00 00 4b 8d 5c 25 30 45 31 f6 eb 16 49 ff c6 43 0f b6 44 2c 02 48 83 c3 10 49 39 c6 0f 83 8b 00 00 00 48 8b 2b <48> 8b 45 08 a8 01 75 3d 66 90 66 90 83 7d 34 00 0f 84 d8 00 00 00 RSP: 0018:ffffc900000e09f8 EFLAGS: 00010246 RAX: ffff8881022ad440 RBX: ffff8881022ad570 RCX: 0000000000000100 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888103333e00 RBP: 0000000000000000 R08: 0000000000000029 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881022ad440 R13: 0000000000000100 R14: 0000000000000000 R15: ffff888103333e00 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 00000000034aa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_release_all net/core/skbuff.c:1191 [inline] __kfree_skb+0x24/0xa0 net/core/skbuff.c:1205 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3409 [inline] tcp_ack+0x92c/0x14f0 net/ipv4/tcp_input.c:4005 tcp_rcv_state_process+0x2ba/0xd10 net/ipv4/tcp_input.c:6764 tcp_v4_do_rcv+0x1c7/0x300 net/ipv4/tcp_ipv4.c:1937 tcp_v4_rcv+0xdc1/0xf30 net/ipv4/tcp_ipv4.c:2349 ip_protocol_deliver_rcu+0x125/0x2b0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0xa4/0x100 net/ipv4/ip_input.c:233 NF_HOOK include/linux/netfilter.h:314 [inline] ip_local_deliver+0x6a/0x140 net/ipv4/ip_input.c:254 NF_HOOK include/linux/netfilter.h:314 [inline] ip_rcv+0x46/0x120 net/ipv4/ip_input.c:569 __netif_receive_skb_one_core net/core/dev.c:5663 [inline] __netif_receive_skb+0xa3/0x160 net/core/dev.c:5777 process_backlog+0x1e9/0x420 net/core/dev.c:6110 __napi_poll+0x27/0x1c0 net/core/dev.c:6774 napi_poll net/core/dev.c:6843 [inline] net_rx_action+0x275/0x460 net/core/dev.c:6965 handle_softirqs+0x10c/0x300 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0x4f/0xc0 kernel/softirq.c:637 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x92/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:deref_stack_reg+0x84/0x90 arch/x86/kernel/unwind_orc.c:408 Code: 39 f9 77 21 48 8b 53 10 4c 39 fa 76 18 49 8d 77 08 31 c0 48 39 ce 76 0d 48 39 d6 77 08 49 8b 07 49 89 06 b0 01 5b 41 5e 41 5f cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900038cf738 EFLAGS: 00000287 RAX: 0000000000000001 RBX: ffffc900038cff48 RCX: ffffc900038d0000 RDX: ffffc900038cff50 RSI: ffffc900038cff48 RDI: ffffc900038cf788 RBP: ffffc900038cf7d8 R08: 0000000000000000 R09: ffffffff83ee6324 R10: 0000000000000000 R11: ffffffff81155640 R12: ffffc900038cff50 R13: 0000000000000001 R14: ffffffff83ee6324 R15: ffffc900038cf788 unwind_next_frame+0x9d7/0xc50 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x47/0x70 kernel/stacktrace.c:122 save_stack+0xef/0x140 mm/page_owner.c:156 __reset_page_owner+0x40/0x140 mm/page_owner.c:297 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1094 [inline] free_unref_folios+0x5d3/0xae0 mm/page_alloc.c:2660 folios_put_refs+0x1c1/0x200 mm/swap.c:1039 free_pages_and_swap_cache+0x1c3/0x1f0 mm/swap_state.c:335 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:366 [inline] tlb_flush_mmu+0x133/0x1a0 mm/mmu_gather.c:373 tlb_finish_mmu+0x41/0x80 mm/mmu_gather.c:465 exit_mmap+0x2cd/0x580 mm/mmap.c:3425 __mmput+0x3d/0x110 kernel/fork.c:1345 exit_mm+0xaa/0x110 kernel/exit.c:571 do_exit+0x1eb/0xac0 kernel/exit.c:869 do_group_exit+0x86/0xa0 kernel/exit.c:1031 get_signal+0x718/0x7d0 kernel/signal.c:2917 arch_do_signal_or_restart+0x89/0x2a0 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x57/0x1d0 kernel/entry/common.c:218 do_syscall_64+0x9a/0x170 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6a8b185d19 Code: Unable to access opcode bytes at 0x7f6a8b185cef. RSP: 002b:00007f6a8bf330e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f6a8b375fa8 RCX: 00007f6a8b185d19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6a8b375fa8 RBP: 00007f6a8b375fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6a8b375fac R13: 0000000000000000 R14: 00007f6a8b49f940 R15: 00007f6a8b49fa28 Modules linked in: CR2: 0000000000000008 ---[ end trace 0000000000000000 ]--- RIP: 0010:_compound_head include/linux/page-flags.h:240 [inline] RIP: 0010:put_page include/linux/mm.h:1550 [inline] RIP: 0010:skb_page_unref include/linux/skbuff_ref.h:44 [inline] RIP: 0010:__skb_frag_unref include/linux/skbuff_ref.h:57 [inline] RIP: 0010:skb_release_data+0xf1/0x200 net/core/skbuff.c:1120 Code: 00 0f 84 ab 00 00 00 4b 8d 5c 25 30 45 31 f6 eb 16 49 ff c6 43 0f b6 44 2c 02 48 83 c3 10 49 39 c6 0f 83 8b 00 00 00 48 8b 2b <48> 8b 45 08 a8 01 75 3d 66 90 66 90 83 7d 34 00 0f 84 d8 00 00 00 RSP: 0018:ffffc900000e09f8 EFLAGS: 00010246 RAX: ffff8881022ad440 RBX: ffff8881022ad570 RCX: 0000000000000100 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888103333e00 RBP: 0000000000000000 R08: 0000000000000029 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881022ad440 R13: 0000000000000100 R14: 0000000000000000 R15: ffff888103333e00 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 00000000034aa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 0f add %cl,(%rdi) 2: 84 ab 00 00 00 4b test %ch,0x4b000000(%rbx) 8: 8d 5c 25 30 lea 0x30(%rbp,%riz,1),%ebx c: 45 31 f6 xor %r14d,%r14d f: eb 16 jmp 0x27 11: 49 ff c6 inc %r14 14: 43 0f b6 44 2c 02 movzbl 0x2(%r12,%r13,1),%eax 1a: 48 83 c3 10 add $0x10,%rbx 1e: 49 39 c6 cmp %rax,%r14 21: 0f 83 8b 00 00 00 jae 0xb2 27: 48 8b 2b mov (%rbx),%rbp * 2a: 48 8b 45 08 mov 0x8(%rbp),%rax <-- trapping instruction 2e: a8 01 test $0x1,%al 30: 75 3d jne 0x6f 32: 66 90 xchg %ax,%ax 34: 66 90 xchg %ax,%ax 36: 83 7d 34 00 cmpl $0x0,0x34(%rbp) 3a: 0f 84 d8 00 00 00 je 0x118