ci2 starts bisection 2023-10-02 12:38:43.646196456 +0000 UTC m=+2179.176766643 bisecting fixing commit since 471e639e59d128f4bf58000a118b2ceca3893f98 building syzkaller on f3921d4d63f97d1f1fb49a69ea85744bb7ef184b ensuring issue is reproducible on original commit 471e639e59d128f4bf58000a118b2ceca3893f98 testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a06f2610ed76764b012f3f84248cbb08e5df1cca98677d4c318fb1268828fb63 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3db6c9678d0d85ef98f512d89c9a012f8ab3153c2add8b12a7c3114e0d2731e6 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3703 full=7270 leaves diff=1987 split chunks (needed=false): <1987> split chunk #0 of len 1987 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 600fbc8f775bb98fe40b7a5511d3e0663ae359aa825ccae8f6d7e19c3039a24e all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 546233185e87af0cff7cd93040e40c257909c8d86ad99791183cfbf145ce15a6 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: acbc9b05687f2e556780e59ff1eaeab175823d740d6843e40aa71a20b3b9b8c3 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9530cd202157e012048ff172931cfceac8bc01de51ab93535e5eece16586e8a all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 471e639e59d128f4bf58000a118b2ceca3893f98 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d2e5b4032a3a8054ef936d8c43004f1c4bc5012a3b7f0ab9e361d640561a3983 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] the chunk can be dropped minimized to 398 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 TARGET_CORE 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_CONFIGFS_F_TCM 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 [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD b911329317b4218e63baf78f3f422efbaa7198ed testing commit b911329317b4218e63baf78f3f422efbaa7198ed gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 65dbb36e4588a811bd47d1e5bd2ccd61688a8f3b5f61908c0fc4c7d7deea0be4 all runs: OK false negative chance: 0.000 # git bisect start b911329317b4218e63baf78f3f422efbaa7198ed 471e639e59d128f4bf58000a118b2ceca3893f98 Bisecting: 1045 revisions left to test after this (roughly 10 steps) [00cecb0a8f9e7a21754d5ad85813ab6b47b3308f] net/mlx5: DR, fix memory leak in mlx5dr_cmd_create_reformat_ctx determine whether the revision contains the guilty commit revision 471e639e59d128f4bf58000a118b2ceca3893f98 crashed and is reachable testing commit 00cecb0a8f9e7a21754d5ad85813ab6b47b3308f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b459439286b3dccd4eac010653473ef16ba3fadeeeef94a2eb7e1ec21ba213f7 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] # git bisect good 00cecb0a8f9e7a21754d5ad85813ab6b47b3308f Bisecting: 522 revisions left to test after this (roughly 9 steps) [2ff9ac0cf25f3fad9a466e2528c06812b8ab8c89] wifi: mt76: testmode: add nla_policy for MT76_TM_ATTR_TX_LENGTH determine whether the revision contains the guilty commit revision 471e639e59d128f4bf58000a118b2ceca3893f98 crashed and is reachable testing commit 2ff9ac0cf25f3fad9a466e2528c06812b8ab8c89 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 92ca1102472adff2b102db20b336932a0007e70407687a54ad7d1a3b10697537 all runs: OK false negative chance: 0.000 # git bisect bad 2ff9ac0cf25f3fad9a466e2528c06812b8ab8c89 Bisecting: 261 revisions left to test after this (roughly 8 steps) [ae6834689fd69b6ee068d6f124a3b14714e0fc3b] team: Fix incorrect deletion of ETH_P_8021AD protocol vid from slaves determine whether the revision contains the guilty commit revision 471e639e59d128f4bf58000a118b2ceca3893f98 crashed and is reachable testing commit ae6834689fd69b6ee068d6f124a3b14714e0fc3b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 40b2359a3d316225e7131e9dde11b04b680b9d2449cd27ed9db2f88495b120b2 all runs: OK false negative chance: 0.000 # git bisect bad ae6834689fd69b6ee068d6f124a3b14714e0fc3b Bisecting: 130 revisions left to test after this (roughly 7 steps) [df21468bfdc885f2495c01f5bb3e3431f0c07306] iavf: fix potential races for FDIR filters determine whether the revision contains the guilty commit revision 00cecb0a8f9e7a21754d5ad85813ab6b47b3308f crashed and is reachable testing commit df21468bfdc885f2495c01f5bb3e3431f0c07306 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1417fb3c8043d3ebf2f0d8bd09e48d5cb9c82640bb9f7b4991647a4bc75a3fb all runs: OK false negative chance: 0.000 # git bisect bad df21468bfdc885f2495c01f5bb3e3431f0c07306 Bisecting: 64 revisions left to test after this (roughly 6 steps) [596be6716bc517d3f73591fc532772f5dfcf09fc] ext2: Drop fragment support determine whether the revision contains the guilty commit revision 00cecb0a8f9e7a21754d5ad85813ab6b47b3308f crashed and is reachable testing commit 596be6716bc517d3f73591fc532772f5dfcf09fc gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a3116eb2006d4a4a93a14180ff52b4a41aa497cf905dd7211a1c58d7ac71d38b all runs: OK false negative chance: 0.000 # git bisect bad 596be6716bc517d3f73591fc532772f5dfcf09fc Bisecting: 32 revisions left to test after this (roughly 5 steps) [b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e] prestera: fix fallback to previous version on same major version determine whether the revision contains the guilty commit revision 471e639e59d128f4bf58000a118b2ceca3893f98 crashed and is reachable testing commit b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aab12f60f25e0a1b175843ddebfdaadffebe1d42bb4fe6a9faca40fae4349284 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] # git bisect good b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e Bisecting: 16 revisions left to test after this (roughly 4 steps) [b0875c583e41a7a245dde87463d81324988b22e1] mtd: spinand: toshiba: Fix ecc_get_status determine whether the revision contains the guilty commit revision b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e crashed and is reachable testing commit b0875c583e41a7a245dde87463d81324988b22e1 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3181fa79a0c564f9c62ef4347c5c1f3af858c0097079076f042d277c8b82d13d all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] # git bisect good b0875c583e41a7a245dde87463d81324988b22e1 Bisecting: 8 revisions left to test after this (roughly 3 steps) [ef0d07c66843160c3358bdc2c553bcfe43216f85] open: make RESOLVE_CACHED correctly test for O_TMPFILE determine whether the revision contains the guilty commit revision b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e crashed and is reachable testing commit ef0d07c66843160c3358bdc2c553bcfe43216f85 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 211c17bb935fadb3cefdae365ae0539c36d05fcdd0671fe1ebb8c0469901bb31 all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] # git bisect good ef0d07c66843160c3358bdc2c553bcfe43216f85 Bisecting: 4 revisions left to test after this (roughly 2 steps) [80ec112c199664a455e8372d5d7c38012409c71f] fs/ntfs3: Use __GFP_NOWARN allocation at ntfs_load_attr_list() determine whether the revision contains the guilty commit revision b0875c583e41a7a245dde87463d81324988b22e1 crashed and is reachable testing commit 80ec112c199664a455e8372d5d7c38012409c71f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c6e80a4a2d1a52c554d9cae108d8176bc269fe0d83a66c7e49b622d8ad10bec all runs: crashed: KASAN: null-ptr-deref Write in get_block representative crash: KASAN: null-ptr-deref Write in get_block, types: [KASAN] # git bisect good 80ec112c199664a455e8372d5d7c38012409c71f Bisecting: 2 revisions left to test after this (roughly 1 step) [fbe5a2fed8156cc19eb3b956602b0a1dd46a302d] Bluetooth: L2CAP: Fix use-after-free in l2cap_sock_ready_cb determine whether the revision contains the guilty commit revision b0875c583e41a7a245dde87463d81324988b22e1 crashed and is reachable testing commit fbe5a2fed8156cc19eb3b956602b0a1dd46a302d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9301ea4f2bd09faafbf1db724ac4101b0432afad0c748ec2eb3834f1c4af74aa all runs: OK false negative chance: 0.000 # git bisect bad fbe5a2fed8156cc19eb3b956602b0a1dd46a302d Bisecting: 0 revisions left to test after this (roughly 0 steps) [afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635] fs/sysv: Null check to prevent null-ptr-deref bug determine whether the revision contains the guilty commit revision b0acbcf1e7a1cbe194b2536ceedeb0f879dfba3e crashed and is reachable testing commit afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9301ea4f2bd09faafbf1db724ac4101b0432afad0c748ec2eb3834f1c4af74aa all runs: OK false negative chance: 0.000 # git bisect bad afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 is the first bad commit commit afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 Author: Prince Kumar Maurya Date: Tue May 30 18:31:41 2023 -0700 fs/sysv: Null check to prevent null-ptr-deref bug commit ea2b62f305893992156a798f665847e0663c9f41 upstream. sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on that leads to the null-ptr-deref bug. Reported-by: syzbot+aad58150cbc64ba41bdc@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=aad58150cbc64ba41bdc Signed-off-by: Prince Kumar Maurya Message-Id: <20230531013141.19487-1-princekumarmaurya06@gmail.com> Signed-off-by: Christian Brauner Signed-off-by: Greg Kroah-Hartman fs/sysv/itree.c | 4 ++++ 1 file changed, 4 insertions(+) accumulated error probability: 0.00 culprit signature: 9301ea4f2bd09faafbf1db724ac4101b0432afad0c748ec2eb3834f1c4af74aa parent signature: 0c6e80a4a2d1a52c554d9cae108d8176bc269fe0d83a66c7e49b622d8ad10bec revisions tested: 19, total time: 2h49m1.265112255s (build: 55m25.007597851s, test: 1h49m30.015072248s) first good commit: afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 fs/sysv: Null check to prevent null-ptr-deref bug recipients (to): ["brauner@kernel.org" "gregkh@linuxfoundation.org" "princekumarmaurya06@gmail.com"] recipients (cc): []