ci2 starts bisection 2023-09-19 13:52:48.627865905 +0000 UTC m=+538500.657039998 bisecting fixing commit since ca48fc16c49388400eddd6c6614593ebf7c7726a building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit ca48fc16c49388400eddd6c6614593ebf7c7726a testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 95d9e15f06c691f38899c055a4a1ada3702a21128923ee22275a22d1b17f627c all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 394f346ed3807b3033f7b72ad533f766a563e8175cf96c7d96b7d00c7e16ecb1 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] the bug reproduces without the instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK BUG KASAN], they are not needed kconfig minimization: base=3820 full=7524 leaves diff=1994 split chunks (needed=false): <1994> split chunk #0 of len 1994 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK BUG KASAN LOCKDEP], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5fd14b0e230fee441c00064fae17bdab73f57d964899e3c95ea1b1f341a6081d all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK BUG KASAN], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b90786bb2b5e1b9a7a0d73fbdb989dd6029eab0da1550ebaca1af2c0ec6720bb all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ATOMIC_SLEEP HANG LEAK BUG KASAN LOCKDEP], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0c579f9558bc7a2f589d5acd73b48f167f573bd5de33d3df9cb956886e39d874 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [HANG LEAK BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0ec00592608007bb824360a6f9034e068f07988cbff572a90c5c5943e1071a29 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK BUG KASAN], they are not needed testing commit ca48fc16c49388400eddd6c6614593ebf7c7726a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4c6441c1ddb46ee0794c3e248030d94019578641d03c92666961167391f0fc22 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] the chunk can be dropped minimized to 399 configs; suspects: [ATM AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LRU_GEN LRU_GEN_ENABLED LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_CLS_RSVP NET_CLS_RSVP6 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_ATM NET_SCH_CAKE NET_SCH_CBQ NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_DSMARK NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V2_ACL NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD a356197db198ad9825ce225f19f2c7448ef9eea0 testing commit a356197db198ad9825ce225f19f2c7448ef9eea0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec5cef6660894544e84552a66a451878beaf1105f30409da0544a788e6793b83 all runs: OK false negative chance: 0.000 # git bisect start a356197db198ad9825ce225f19f2c7448ef9eea0 ca48fc16c49388400eddd6c6614593ebf7c7726a Bisecting: 2384 revisions left to test after this (roughly 11 steps) [7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d] crypto: marvell/cesa - Fix type mismatch warning determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c382f44beeb80665fe929e473b9bf0fd6f423a4c21e79fe677451253272f5b2 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d Bisecting: 1192 revisions left to test after this (roughly 10 steps) [0e1605ec5bea016117bc6d9d0bfe95906c014c7a] scsi: core: Fix legacy /proc parsing buffer overflow determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit 0e1605ec5bea016117bc6d9d0bfe95906c014c7a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8f605603d9e9d38553b748dff73b643309f23e3f586a60b51add6cc3916aa807 all runs: OK false negative chance: 0.000 # git bisect bad 0e1605ec5bea016117bc6d9d0bfe95906c014c7a Bisecting: 595 revisions left to test after this (roughly 9 steps) [ca12b98e04b5d1902ac08fe826d3500cb4b6e891] iavf: Fix use-after-free in free_netdev determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit ca12b98e04b5d1902ac08fe826d3500cb4b6e891 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb0e9b43e7c3d98b47a217e3f8ca0f87896d8770868b02095a1e7f8b36d4af0c all runs: OK false negative chance: 0.000 # git bisect bad ca12b98e04b5d1902ac08fe826d3500cb4b6e891 Bisecting: 297 revisions left to test after this (roughly 8 steps) [ba05762e4a5c236b560d8cee498d62b54000aeb1] riscv, bpf: Fix inconsistent JIT image generation determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit ba05762e4a5c236b560d8cee498d62b54000aeb1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 351b65c5bd08b49402209949681196a41d3c6b642d1f74375a11bfba58f271af all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good ba05762e4a5c236b560d8cee498d62b54000aeb1 Bisecting: 148 revisions left to test after this (roughly 7 steps) [08daab11f344cae8b8577b68e9ce8efd076dcca7] selftests: mptcp: userspace_pm: report errors with 'remove' tests determine whether the revision contains the guilty commit revision 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d crashed and is reachable testing commit 08daab11f344cae8b8577b68e9ce8efd076dcca7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b2d8fdfab2fcb1021e2b6d2413639a471078c004ed0605e192dbbe74e1e570e all runs: OK false negative chance: 0.000 # git bisect bad 08daab11f344cae8b8577b68e9ce8efd076dcca7 Bisecting: 74 revisions left to test after this (roughly 6 steps) [cf0d7b72707dcaa21e4c685721072d1234a87162] PCI: qcom: Disable write access to read only registers for IP v2.3.3 determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit cf0d7b72707dcaa21e4c685721072d1234a87162 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a302234c470df9448ed8be6e22d292867ceb43712e58ab7da781e9314f9aae6 all runs: OK false negative chance: 0.000 # git bisect bad cf0d7b72707dcaa21e4c685721072d1234a87162 Bisecting: 36 revisions left to test after this (roughly 5 steps) [326b3f17bee88f8f05a3371b95b82caaf2ce1cac] pinctrl: amd: Use amd_pinconf_set() for all config options determine whether the revision contains the guilty commit revision ca48fc16c49388400eddd6c6614593ebf7c7726a crashed and is reachable testing commit 326b3f17bee88f8f05a3371b95b82caaf2ce1cac gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b83ed479d372a908fd33c5bd18c03e8ea0f4807aac0ed9e43007e7f13864fafc all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 326b3f17bee88f8f05a3371b95b82caaf2ce1cac Bisecting: 18 revisions left to test after this (roughly 4 steps) [bd9cf2a5f9e1b2229ad22f21de6f6ad1a9c8858e] MIPS: KVM: Fix NULL pointer dereference determine whether the revision contains the guilty commit revision 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d crashed and is reachable testing commit bd9cf2a5f9e1b2229ad22f21de6f6ad1a9c8858e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d12c488ed794944c559ce2e1ec440a59b3f3cc71bea385bf05ba8d7680ce8e2 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good bd9cf2a5f9e1b2229ad22f21de6f6ad1a9c8858e Bisecting: 9 revisions left to test after this (roughly 3 steps) [33f8dff6e1cbba5c2ec85fa5649c0a759a7e685c] soc: qcom: mdt_loader: Fix unconditional call to scm_pas_mem_setup determine whether the revision contains the guilty commit revision 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d crashed and is reachable testing commit 33f8dff6e1cbba5c2ec85fa5649c0a759a7e685c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f933c913675e6db51a949d9d002b473e2ef40c39c8bd4a40ec22c1d9818e458f all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 33f8dff6e1cbba5c2ec85fa5649c0a759a7e685c Bisecting: 4 revisions left to test after this (roughly 2 steps) [026e46d26aaf759c2ffe2e986a64d9778bd2247b] scsi: mpi3mr: Propagate sense data for admin queue SCSI I/O determine whether the revision contains the guilty commit revision 7ab0e37f8064d1f85f34e3dc344a8e62a4a98e0d crashed and is reachable testing commit 026e46d26aaf759c2ffe2e986a64d9778bd2247b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d749b9aae61e4a91d341739cd6172e2c032ea0f7eda206ec86dc97614e23b95e all runs: OK false negative chance: 0.000 # git bisect bad 026e46d26aaf759c2ffe2e986a64d9778bd2247b Bisecting: 2 revisions left to test after this (roughly 1 step) [c7feb54b113802d2aba98708769d3c33fb017254] jfs: jfs_dmap: Validate db_l2nbperpage while mounting determine whether the revision contains the guilty commit revision bd9cf2a5f9e1b2229ad22f21de6f6ad1a9c8858e crashed and is reachable testing commit c7feb54b113802d2aba98708769d3c33fb017254 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 855b907b14115e485a1911393c2878fe55e37aced904688d3214ca338d54c85d all runs: OK false negative chance: 0.000 # git bisect bad c7feb54b113802d2aba98708769d3c33fb017254 Bisecting: 0 revisions left to test after this (roughly 0 steps) [9e54fd14bd143c261e52fde74355e85e9526c58c] ext2/dax: Fix ext2_setsize when len is page aligned determine whether the revision contains the guilty commit revision 326b3f17bee88f8f05a3371b95b82caaf2ce1cac crashed and is reachable testing commit 9e54fd14bd143c261e52fde74355e85e9526c58c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dd8507fb72ac2f05d4c00f52c30cf5f187cbfe5dba8d1d8be41c5a032ef6d346 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 9e54fd14bd143c261e52fde74355e85e9526c58c c7feb54b113802d2aba98708769d3c33fb017254 is the first bad commit commit c7feb54b113802d2aba98708769d3c33fb017254 Author: Siddh Raman Pant Date: Tue Jun 20 22:17:00 2023 +0530 jfs: jfs_dmap: Validate db_l2nbperpage while mounting commit 11509910c599cbd04585ec35a6d5e1a0053d84c1 upstream. In jfs_dmap.c at line 381, BLKTODMAP is used to get a logical block number inside dbFree(). db_l2nbperpage, which is the log2 number of blocks per page, is passed as an argument to BLKTODMAP which uses it for shifting. Syzbot reported a shift out-of-bounds crash because db_l2nbperpage is too big. This happens because the large value is set without any validation in dbMount() at line 181. Thus, make sure that db_l2nbperpage is correct while mounting. Max number of blocks per page = Page size / Min block size => log2(Max num_block per page) = log2(Page size / Min block size) = log2(Page size) - log2(Min block size) => Max db_l2nbperpage = L2PSIZE - L2MINBLOCKSIZE Reported-and-tested-by: syzbot+d2cd27dcf8e04b232eb2@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?id=2a70a453331db32ed491f5cbb07e81bf2d225715 Cc: stable@vger.kernel.org Suggested-by: Dave Kleikamp Signed-off-by: Siddh Raman Pant Signed-off-by: Dave Kleikamp Signed-off-by: Greg Kroah-Hartman fs/jfs/jfs_dmap.c | 6 ++++++ fs/jfs/jfs_filsys.h | 2 ++ 2 files changed, 8 insertions(+) accumulated error probability: 0.00 culprit signature: 855b907b14115e485a1911393c2878fe55e37aced904688d3214ca338d54c85d parent signature: dd8507fb72ac2f05d4c00f52c30cf5f187cbfe5dba8d1d8be41c5a032ef6d346 revisions tested: 20, total time: 3h6m0.918806321s (build: 1h15m13.747746772s, test: 1h44m6.517338324s) first good commit: c7feb54b113802d2aba98708769d3c33fb017254 jfs: jfs_dmap: Validate db_l2nbperpage while mounting recipients (to): ["code@siddh.me" "dave.kleikamp@oracle.com" "gregkh@linuxfoundation.org" "syzbot+d2cd27dcf8e04b232eb2@syzkaller.appspotmail.com"] recipients (cc): []