ci2 starts bisection 2023-12-03 22:04:08.985141366 +0000 UTC m=+335759.631718657 bisecting fixing commit since 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 building syzkaller on 3c418d724accee0ff5b8487bdddeb5827ab216bd ensuring issue is reproducible on original commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 60871e7e93914be6bb6ce5991b257eb78e0d74114a006629aaf176ca803d6487 all runs: crashed: general protection fault in inherit_task_group representative crash: general protection fault in inherit_task_group, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e75508d4893ec00c8dc6ae5585c29b7ea9b07ad7ede466e81213dae4359aa100 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3703 full=7267 leaves diff=1983 split chunks (needed=false): <1983> split chunk #0 of len 1983 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b1c5e22c825938404d3c288b17673b476f2f5905893b2a1d0ae92050b0593c8b all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5b80b00a162b497ffff1484ecdc98acb23dc8a8196bcbb8597e108c60a27c2d0 all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 83ef909df4809f6f7e442ca2040b4da8a2b01d35edd17191ac640555fe34e7ee run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #7: OK run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, 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 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a0839cc05c44b20e308a77c53a78b79a39c5751068cffe807aa38e9b99dcee4 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0a1f1b430525b02533ca59f8368a68213956518fd44df7a0b3c8e08e36964fba run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in corrupted run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] the chunk can be dropped minimized to 397 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_CGROUP_DATA SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TASKS_RCU TASKS_RCU_GENERIC TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_IMX USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_TEGRA 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_PRINTER USB_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIDEO_V4L2 VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 9b91d36ba301db86bbf9e783169f7f6abf2585d8 testing commit 9b91d36ba301db86bbf9e783169f7f6abf2585d8 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fb0d5be2403edd2e7ecf8319459770f42381f29647e2e48ed1b54cceabf9c9f7 all runs: OK false negative chance: 0.000 # git bisect start 9b91d36ba301db86bbf9e783169f7f6abf2585d8 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 Bisecting: 362 revisions left to test after this (roughly 9 steps) [8e4b510fe91782522b7ca0ca881b663b5d35e513] fbdev: imsttfb: fix a resource leak in probe determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit 8e4b510fe91782522b7ca0ca881b663b5d35e513 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6340feacaedbdd95c857872e61ae44c1edb3d5905ea394037c8134d2534e68af all runs: OK false negative chance: 0.000 # git bisect bad 8e4b510fe91782522b7ca0ca881b663b5d35e513 Bisecting: 180 revisions left to test after this (roughly 8 steps) [8861b2925a846d91f7363730bfcd1ce1d69e17fa] clk: qcom: gcc-sm8150: Fix gcc_sdcc2_apps_clk_src determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit 8861b2925a846d91f7363730bfcd1ce1d69e17fa gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c9e3eb5043c35091d49de7f2ace3d20cb0731faea36e95af56a5452a2fbbc651 all runs: OK false negative chance: 0.000 # git bisect bad 8861b2925a846d91f7363730bfcd1ce1d69e17fa Bisecting: 90 revisions left to test after this (roughly 7 steps) [dfcbb983eb6ec5050fdb83a57905891803073b75] spi: npcm-fiu: Fix UMA reads when dummy.nbytes == 0 determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit dfcbb983eb6ec5050fdb83a57905891803073b75 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f3cb40f3d962178ab7d7429a4071cc47cae8128e1c087102bf88e0aa908f1392 all runs: OK false negative chance: 0.000 # git bisect bad dfcbb983eb6ec5050fdb83a57905891803073b75 Bisecting: 44 revisions left to test after this (roughly 6 steps) [2766a872103bb6500be6d63f42ecc580e7566a93] i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node() determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit 2766a872103bb6500be6d63f42ecc580e7566a93 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aebc39a1af3966b0211c3630dc0e936846c79ca081642e4c8a4afd2295f6678e run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] # git bisect good 2766a872103bb6500be6d63f42ecc580e7566a93 Bisecting: 22 revisions left to test after this (roughly 5 steps) [37ffa428d58c87016c735c4ca3091873896ba52d] objtool/x86: add missing embedded_insn check determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit 37ffa428d58c87016c735c4ca3091873896ba52d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74b2de2776e0b6a230d82388b3932ea52cb567a5f0fb6f823c2514fe6dc1a7fd all runs: OK false negative chance: 0.000 # git bisect bad 37ffa428d58c87016c735c4ca3091873896ba52d Bisecting: 10 revisions left to test after this (roughly 4 steps) [c60671502dc2cba8c72a43415b8704bd644f45b7] iio: afe: rescale: reorder includes determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit c60671502dc2cba8c72a43415b8704bd644f45b7 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a69369ced7c3b82a3dda60291fb0dfe4aff329d91e74c0d2041b468cc627641d all runs: OK false negative chance: 0.000 # git bisect bad c60671502dc2cba8c72a43415b8704bd644f45b7 Bisecting: 5 revisions left to test after this (roughly 3 steps) [6e22bf6f00d593b0a7e0b2f418fde89317424671] nvmem: imx: correct nregs for i.MX6ULL determine whether the revision contains the guilty commit revision 2766a872103bb6500be6d63f42ecc580e7566a93 crashed and is reachable testing commit 6e22bf6f00d593b0a7e0b2f418fde89317424671 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aebc39a1af3966b0211c3630dc0e936846c79ca081642e4c8a4afd2295f6678e run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] # git bisect good 6e22bf6f00d593b0a7e0b2f418fde89317424671 Bisecting: 2 revisions left to test after this (roughly 2 steps) [21b07a2e6095ea57356527d20fe5bf2a5adbac3d] perf/core: Fix potential NULL deref determine whether the revision contains the guilty commit revision 6e22bf6f00d593b0a7e0b2f418fde89317424671 crashed and is reachable testing commit 21b07a2e6095ea57356527d20fe5bf2a5adbac3d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 42015fcc4dbfc88f5957dc46a9d171ac325df17da522bcc3f448ba8454452bcb all runs: OK false negative chance: 0.000 # git bisect bad 21b07a2e6095ea57356527d20fe5bf2a5adbac3d Bisecting: 0 revisions left to test after this (roughly 1 step) [6efd498009b987a92f57f3bdae476f0503364fb7] nvmem: imx: correct nregs for i.MX6UL determine whether the revision contains the guilty commit revision 12952a23a5da6459aaaaa3ae4bc8ce8fef952ef5 crashed and is reachable testing commit 6efd498009b987a92f57f3bdae476f0503364fb7 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aebc39a1af3966b0211c3630dc0e936846c79ca081642e4c8a4afd2295f6678e run #0: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #1: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group run #8: OK run #9: OK representative crash: BUG: unable to handle kernel NULL pointer dereference in inherit_task_group, types: [UNKNOWN] # git bisect good 6efd498009b987a92f57f3bdae476f0503364fb7 21b07a2e6095ea57356527d20fe5bf2a5adbac3d is the first bad commit commit 21b07a2e6095ea57356527d20fe5bf2a5adbac3d Author: Peter Zijlstra Date: Tue Oct 24 11:42:21 2023 +0200 perf/core: Fix potential NULL deref commit a71ef31485bb51b846e8db8b3a35e432cc15afb5 upstream. Smatch is awesome. Fixes: 32671e3799ca ("perf: Disallow mis-matched inherited group reads") Reported-by: Dan Carpenter Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman kernel/events/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 42015fcc4dbfc88f5957dc46a9d171ac325df17da522bcc3f448ba8454452bcb parent signature: aebc39a1af3966b0211c3630dc0e936846c79ca081642e4c8a4afd2295f6678e revisions tested: 17, total time: 3h17m35.32294105s (build: 31m57.954546522s, test: 2h42m1.071459397s) first good commit: 21b07a2e6095ea57356527d20fe5bf2a5adbac3d perf/core: Fix potential NULL deref recipients (to): ["gregkh@linuxfoundation.org" "mingo@kernel.org" "peterz@infradead.org"] recipients (cc): []