ci2 starts bisection 2023-09-14 12:28:40.081610375 +0000 UTC m=+101452.110784468 bisecting fixing commit since f48aeeaaa64c628519273f6007a745cf55b68d95 building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88 ensuring issue is reproducible on original commit f48aeeaaa64c628519273f6007a745cf55b68d95 testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cf5ba880f8d113b040c37427717443ef389ed09ab59fb8390a1d4471312a0abb 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 [HANG LEAK BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8b2e9c002f6f9480cf178cb5b37bf5aef914539dcbb300f5967f650d013f3282 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed kconfig minimization: base=3703 full=7272 leaves diff=1986 split chunks (needed=false): <1986> split chunk #0 of len 1986 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK BUG KASAN], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0c20dd8298e221582674b4d8ce8c0e3b17ea1c1acdae8a4f72ff3ec5ba2ae18 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 [ATOMIC_SLEEP HANG LEAK BUG KASAN LOCKDEP], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 235c1cd8470c7acf603802ed4959190e41ac5665c4053707911abf36b36e6665 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 [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK BUG], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e58579e26490a236ae0d8a8f1baa67dbcfeb10b0ddf93803b7d3b38e8f8f7691 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f16ef59493be8d7d68b01c13b34be9533d6d3e0591878151f8fc72cc552ce095 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 [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5891c0f89db225f425d61e10a29875f0997db7fb1f2ba252b1c6122106b34204 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 398 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 ISDN 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_INTEL 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 LIBNVDIMM LINEAR_RANGES LLC LLC2 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH 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 MEDIA_TUNER_XC2028 MEDIA_TUNER_XC5000 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_BLK 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 NETFS_SUPPORT 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_CGROUP 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_EGRESS 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 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_COUNTER 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_OBJREF 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_FLOW_TABLE_IPV4 NF_FLOW_TABLE_IPV6 NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 PARTITION_ADVANCED PSAMPLE RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV VIDEO_V4L2 WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing current HEAD aff03380bda4d25717170b42c92b54143aec0a36 testing commit aff03380bda4d25717170b42c92b54143aec0a36 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 93da8d81089440fe2ac333daac2b545b234efb56fc717925c7a714fa9cdf02ec all runs: OK false negative chance: 0.000 # git bisect start aff03380bda4d25717170b42c92b54143aec0a36 f48aeeaaa64c628519273f6007a745cf55b68d95 Bisecting: 1280 revisions left to test after this (roughly 10 steps) [a44b4230d2ba6a8f6245ee02667f4a39b2d568ea] drm/exynos: vidi: fix a wrong error return determine whether the revision contains the guilty commit revision f48aeeaaa64c628519273f6007a745cf55b68d95 crashed and is reachable testing commit a44b4230d2ba6a8f6245ee02667f4a39b2d568ea gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 16042960153566979a86effc15ba740fc84f666b59bf063080d9d870a3e1a0b2 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good a44b4230d2ba6a8f6245ee02667f4a39b2d568ea Bisecting: 640 revisions left to test after this (roughly 9 steps) [09996673e3139a6d86fc3d95c852b3a020e2fe5f] Linux 5.15.123 determine whether the revision contains the guilty commit revision f48aeeaaa64c628519273f6007a745cf55b68d95 crashed and is reachable testing commit 09996673e3139a6d86fc3d95c852b3a020e2fe5f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a760cb05da46b908e8dfaf2341fdc1db09dca968b731939f94890151f55872a all runs: OK false negative chance: 0.000 # git bisect bad 09996673e3139a6d86fc3d95c852b3a020e2fe5f Bisecting: 319 revisions left to test after this (roughly 8 steps) [f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c] usb: common: usb-conn-gpio: Set last role to unknown before initial detection determine whether the revision contains the guilty commit revision a44b4230d2ba6a8f6245ee02667f4a39b2d568ea crashed and is reachable testing commit f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0f5bd1a388cd061dca4d65c33a9025d153170dcf2c8229bc8fbf1265084f7a8f all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c Bisecting: 159 revisions left to test after this (roughly 7 steps) [9f1627d8b0a400fa08aba5868dba682b0460b592] misc: fastrpc: Create fastrpc scalar with correct buffer count determine whether the revision contains the guilty commit revision f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c crashed and is reachable testing commit 9f1627d8b0a400fa08aba5868dba682b0460b592 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c844e2109b8dc78b0991fb9a0aac9308a104a3e88a65415f8ea4b205a5cb60e6 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 9f1627d8b0a400fa08aba5868dba682b0460b592 Bisecting: 79 revisions left to test after this (roughly 6 steps) [5c6a716301d915055c7bd6d935f7a4fccec2649c] Linux 5.15.122 determine whether the revision contains the guilty commit revision 9f1627d8b0a400fa08aba5868dba682b0460b592 crashed and is reachable testing commit 5c6a716301d915055c7bd6d935f7a4fccec2649c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74cab6820ef24e15878171fb95ef05bb9536d879cef095b66a2255a5348b7d51 all runs: OK false negative chance: 0.000 # git bisect bad 5c6a716301d915055c7bd6d935f7a4fccec2649c Bisecting: 39 revisions left to test after this (roughly 5 steps) [becf8c69b7e76fa226a60451e4855e02708a02df] tty: serial: imx: fix rs485 rx after tx determine whether the revision contains the guilty commit revision f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c crashed and is reachable testing commit becf8c69b7e76fa226a60451e4855e02708a02df gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f322247c31500f61e6aa891ef601d3e6fe145fbaf6b364d9eff30b6709e48cbf all runs: OK false negative chance: 0.000 # git bisect bad becf8c69b7e76fa226a60451e4855e02708a02df Bisecting: 19 revisions left to test after this (roughly 4 steps) [049d774b8b9b4ff1935ae3d142aeff7cecce7445] PCI: rockchip: Write PCI Device ID to correct register determine whether the revision contains the guilty commit revision f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c crashed and is reachable testing commit 049d774b8b9b4ff1935ae3d142aeff7cecce7445 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 154bd2fd6b0935ad895c150686c1e5af75816d02f253aa000d80bb10fea4bbd4 all runs: OK false negative chance: 0.000 # git bisect bad 049d774b8b9b4ff1935ae3d142aeff7cecce7445 Bisecting: 9 revisions left to test after this (roughly 3 steps) [8830523440a6aa79542955c9b91acfa6f55a4089] ext4: fix to check return value of freeze_bdev() in ext4_shutdown() determine whether the revision contains the guilty commit revision 9f1627d8b0a400fa08aba5868dba682b0460b592 crashed and is reachable testing commit 8830523440a6aa79542955c9b91acfa6f55a4089 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a12f4e15b0512066de871f9bc9bfeb8a22a42be8cb0bb49b0b212f22f45b713 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good 8830523440a6aa79542955c9b91acfa6f55a4089 Bisecting: 4 revisions left to test after this (roughly 2 steps) [f930cf3f21fd11fd04d7dcbb892dc69dd134ca85] dm integrity: reduce vmalloc space footprint on 32-bit architectures determine whether the revision contains the guilty commit revision f48aeeaaa64c628519273f6007a745cf55b68d95 crashed and is reachable testing commit f930cf3f21fd11fd04d7dcbb892dc69dd134ca85 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15f8c0df7ab64552153f91a6bf77535fc6d9eff777582365150db2037289a841 all runs: OK false negative chance: 0.000 # git bisect bad f930cf3f21fd11fd04d7dcbb892dc69dd134ca85 Bisecting: 2 revisions left to test after this (roughly 1 step) [d04a3ff04c93dd8680991873900744f78fc05f7d] ext4: only update i_reserved_data_blocks on successful block allocation determine whether the revision contains the guilty commit revision a44b4230d2ba6a8f6245ee02667f4a39b2d568ea crashed and is reachable testing commit d04a3ff04c93dd8680991873900744f78fc05f7d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6e6858526d1c690ac6dd37f7d9eb181a29014396978f628150987588ee8ee931 all runs: crashed: UBSAN: shift-out-of-bounds in dbFree representative crash: UBSAN: shift-out-of-bounds in dbFree, types: [UBSAN] # git bisect good d04a3ff04c93dd8680991873900744f78fc05f7d Bisecting: 0 revisions left to test after this (roughly 1 step) [70564215ad927588dbea30472624cfd9e79d7c36] hwrng: imx-rngc - fix the timeout for init and self check determine whether the revision contains the guilty commit revision f48aeeaaa64c628519273f6007a745cf55b68d95 crashed and is reachable testing commit 70564215ad927588dbea30472624cfd9e79d7c36 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15f8c0df7ab64552153f91a6bf77535fc6d9eff777582365150db2037289a841 all runs: OK false negative chance: 0.000 # git bisect bad 70564215ad927588dbea30472624cfd9e79d7c36 Bisecting: 0 revisions left to test after this (roughly 0 steps) [de984faecddb900fa850af4df574a25b32bb93f5] jfs: jfs_dmap: Validate db_l2nbperpage while mounting determine whether the revision contains the guilty commit revision f232c1caac3caa9cb991cf8e1cddcf2fddee6d2c crashed and is reachable testing commit de984faecddb900fa850af4df574a25b32bb93f5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15f8c0df7ab64552153f91a6bf77535fc6d9eff777582365150db2037289a841 all runs: OK false negative chance: 0.000 # git bisect bad de984faecddb900fa850af4df574a25b32bb93f5 de984faecddb900fa850af4df574a25b32bb93f5 is the first bad commit commit de984faecddb900fa850af4df574a25b32bb93f5 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: 15f8c0df7ab64552153f91a6bf77535fc6d9eff777582365150db2037289a841 parent signature: 6e6858526d1c690ac6dd37f7d9eb181a29014396978f628150987588ee8ee931 revisions tested: 20, total time: 4h49m34.140989674s (build: 54m5.397546893s, test: 3h33m4.642669616s) first good commit: de984faecddb900fa850af4df574a25b32bb93f5 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): []