ci2 starts bisection 2023-10-30 02:06:37.679367429 +0000 UTC m=+217053.354986044 bisecting fixing commit since e84a4e368abe42cf359fe237f0238820859d5044 building syzkaller on 79782afcff30fd0c0af8c2725d508b2c7150f3ed ensuring issue is reproducible on original commit e84a4e368abe42cf359fe237f0238820859d5044 testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 63eced5f405bd98dd83ae9863ac504a59df9a7ff78e677130aa7f4eaf4784835 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3f7c763f728c731330d7eb0238eadbcbb7352144d9772a6bc5f5f47dfbe71997 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed kconfig minimization: base=3820 full=7523 leaves diff=1995 split chunks (needed=false): <1995> split chunk #0 of len 1995 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 55d5c0e269a1643783e08b9c0a3706d11d7c69b124be3ac98d2fdc3b2bf27c33 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, 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 e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 18da0d6b1dec439ff05ecdb9b1b5f50913b111315573779b946d9dc92cc1b908 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 347e29931f22b8654f4f5bef3d12adc8c4333ad1a9618d7017d3ff97231b0427 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ecd5cc54446f8560c8cb7470d26b2c351dfa7cd9ab874e43168a19c7edfc9a0a all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit e84a4e368abe42cf359fe237f0238820859d5044 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38dae669a595a9436cd3905306f1dd8dd040140d7d606fb0c5203a675673ad08 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] 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 [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing current HEAD 32c9cdbe383c153af23cfa1df0a352b97ab3df7a testing commit 32c9cdbe383c153af23cfa1df0a352b97ab3df7a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cbabffd5c83381beb976e24a0110c0922569347d0b3f11e84b8b5d7242cba32a all runs: OK false negative chance: 0.000 # git bisect start 32c9cdbe383c153af23cfa1df0a352b97ab3df7a e84a4e368abe42cf359fe237f0238820859d5044 Bisecting: 1915 revisions left to test after this (roughly 11 steps) [9e725386d4262ef23ae51993f04602bc535b5be2] cifs: Release folio lock on fscache read hit. determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 9e725386d4262ef23ae51993f04602bc535b5be2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 45d8c9772949c82e5e0f6a2f079973d345ab4ca4a2d07044f237ec4980fb5f7d all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] # git bisect good 9e725386d4262ef23ae51993f04602bc535b5be2 Bisecting: 957 revisions left to test after this (roughly 10 steps) [ae73b94ad7710e8d810bc0b4fbda07f68faca246] ata: sata_gemini: Add missing MODULE_DESCRIPTION determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit ae73b94ad7710e8d810bc0b4fbda07f68faca246 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9b7dcef96488f77d3c5d21d9c30021e2e9187cdb6df54b9b841677a1035f4d83 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] # git bisect good ae73b94ad7710e8d810bc0b4fbda07f68faca246 Bisecting: 478 revisions left to test after this (roughly 9 steps) [5d3b0fcb3ca61916616c7290d541a0f8f738ac8e] scsi: core: Improve type safety of scsi_rescan_device() determine whether the revision contains the guilty commit revision 9e725386d4262ef23ae51993f04602bc535b5be2 crashed and is reachable testing commit 5d3b0fcb3ca61916616c7290d541a0f8f738ac8e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78f43f7633fed3f9ffa3b79831c22d50b6111209f8ddd679d11bf61e5fcbf93b all runs: OK false negative chance: 0.000 # git bisect bad 5d3b0fcb3ca61916616c7290d541a0f8f738ac8e Bisecting: 239 revisions left to test after this (roughly 8 steps) [9a8c544158f68f656d1734eb5ba00c4f817b76b1] netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction determine whether the revision contains the guilty commit revision 9e725386d4262ef23ae51993f04602bc535b5be2 crashed and is reachable testing commit 9a8c544158f68f656d1734eb5ba00c4f817b76b1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6546d3832276a347c092e6f24891be83b0cc3fe317be38ec60e7d15ec385ebf6 all runs: OK false negative chance: 0.000 # git bisect bad 9a8c544158f68f656d1734eb5ba00c4f817b76b1 Bisecting: 119 revisions left to test after this (roughly 7 steps) [2c0f5b6972ebfd6224065fd3c59d04f85a8af795] drm/amd/display: Blocking invalid 420 modes on HDMI TMDS for DCN31 determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 2c0f5b6972ebfd6224065fd3c59d04f85a8af795 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6735326e0c2ddd6088f58f1c0a1cba91d3dbd7301658a88d55099335fdc44904 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] # git bisect good 2c0f5b6972ebfd6224065fd3c59d04f85a8af795 Bisecting: 59 revisions left to test after this (roughly 6 steps) [17854d92fa4a7d40463a83d558774b6f8ba1749a] ovl: fix failed copyup of fileattr on a symlink determine whether the revision contains the guilty commit revision 9e725386d4262ef23ae51993f04602bc535b5be2 crashed and is reachable testing commit 17854d92fa4a7d40463a83d558774b6f8ba1749a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1b1b7a263d86928e454482ef66d6793b1cf95ee1b0ecfadef3985b49bf5f97e9 all runs: OK false negative chance: 0.000 # git bisect bad 17854d92fa4a7d40463a83d558774b6f8ba1749a Bisecting: 29 revisions left to test after this (roughly 5 steps) [8e3556f2f49777bd462dac9959d2dd31116479d7] usb: ehci: add workaround for chipidea PORTSC.PEC bug determine whether the revision contains the guilty commit revision 2c0f5b6972ebfd6224065fd3c59d04f85a8af795 crashed and is reachable testing commit 8e3556f2f49777bd462dac9959d2dd31116479d7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 01e175284746ded0ef2e974a1818b3bf0374ab6d8fc8e90d1a696ec5abc36aa4 all runs: OK false negative chance: 0.000 # git bisect bad 8e3556f2f49777bd462dac9959d2dd31116479d7 Bisecting: 14 revisions left to test after this (roughly 4 steps) [0143f282b15f7cedc0392ea10050fb6000fd16e6] media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 0143f282b15f7cedc0392ea10050fb6000fd16e6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6fe5870b23ec8353bbe62127d8d5bef3f113bb49a8bb74e5c1602506d630f0f7 all runs: OK false negative chance: 0.000 # git bisect bad 0143f282b15f7cedc0392ea10050fb6000fd16e6 Bisecting: 7 revisions left to test after this (roughly 3 steps) [2f7a36448f51d08d3a83f1514abcca4b680bcd3c] fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 2f7a36448f51d08d3a83f1514abcca4b680bcd3c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e6f5dd422d0994d52e9d2f177201cb3f6a6ae12c5f1775305eeab431143da19 all runs: crashed: KASAN: use-after-free Read in diFree representative crash: KASAN: use-after-free Read in diFree, types: [KASAN] # git bisect good 2f7a36448f51d08d3a83f1514abcca4b680bcd3c Bisecting: 3 revisions left to test after this (roughly 2 steps) [96f27ff732208dce6468016e7a7d5032bd1bfc23] powerpc/pseries: fix possible memory leak in ibmebus_bus_init() determine whether the revision contains the guilty commit revision 2c0f5b6972ebfd6224065fd3c59d04f85a8af795 crashed and is reachable testing commit 96f27ff732208dce6468016e7a7d5032bd1bfc23 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbf725bae48b3894341dc65351bcae6a3d12d16510bf5f0f0eeaae2feee09c6d all runs: OK false negative chance: 0.000 # git bisect bad 96f27ff732208dce6468016e7a7d5032bd1bfc23 Bisecting: 1 revision left to test after this (roughly 1 step) [09066c19d9457c208f94c652577abe42b28dd026] PCI: dwc: Provide deinit callback for i.MX determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 09066c19d9457c208f94c652577abe42b28dd026 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 12fcca22b6a80e1b09bde967f83f65082ee47d7c7b3f1abd99d40a4a085701d3 all runs: OK false negative chance: 0.000 # git bisect bad 09066c19d9457c208f94c652577abe42b28dd026 Bisecting: 0 revisions left to test after this (roughly 0 steps) [4de3a603010e0ca334487de24c6aab0777b7f808] jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount determine whether the revision contains the guilty commit revision e84a4e368abe42cf359fe237f0238820859d5044 crashed and is reachable testing commit 4de3a603010e0ca334487de24c6aab0777b7f808 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d417860e6c3709c7e3eccb13a52a8ceb6f37512676039c8bf3d05d32b7f27ddb all runs: OK false negative chance: 0.000 # git bisect bad 4de3a603010e0ca334487de24c6aab0777b7f808 4de3a603010e0ca334487de24c6aab0777b7f808 is the first bad commit commit 4de3a603010e0ca334487de24c6aab0777b7f808 Author: Liu Shixin via Jfs-discussion Date: Thu Dec 1 20:46:28 2022 +0800 jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount [ Upstream commit 6e2bda2c192d0244b5a78b787ef20aa10cb319b7 ] syzbot found an invalid-free in diUnmount: BUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674 Free of addr ffff88806f410000 by task syz-executor131/3632 CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460 ____kasan_slab_free+0xfb/0x120 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1750 slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3674 diUnmount+0xef/0x100 fs/jfs/jfs_imap.c:195 jfs_umount+0x108/0x370 fs/jfs/jfs_umount.c:63 jfs_put_super+0x86/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1428 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1186 task_work_run+0x243/0x300 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x664/0x2070 kernel/exit.c:820 do_group_exit+0x1fd/0x2b0 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:959 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] JFS_IP(ipimap)->i_imap is not setting to NULL after free in diUnmount. If jfs_remount() free JFS_IP(ipimap)->i_imap but then failed at diMount(). JFS_IP(ipimap)->i_imap will be freed once again. Fix this problem by setting JFS_IP(ipimap)->i_imap to NULL after free. Reported-by: syzbot+90a11e6b1e810785c6ff@syzkaller.appspotmail.com Signed-off-by: Liu Shixin Signed-off-by: Dave Kleikamp Signed-off-by: Sasha Levin fs/jfs/jfs_imap.c | 1 + 1 file changed, 1 insertion(+) accumulated error probability: 0.00 culprit signature: d417860e6c3709c7e3eccb13a52a8ceb6f37512676039c8bf3d05d32b7f27ddb parent signature: 4e6f5dd422d0994d52e9d2f177201cb3f6a6ae12c5f1775305eeab431143da19 revisions tested: 20, total time: 3h51m15.559208792s (build: 1h18m0.462026877s, test: 2h26m20.948474556s) first good commit: 4de3a603010e0ca334487de24c6aab0777b7f808 jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount recipients (to): ["dave.kleikamp@oracle.com" "jfs-discussion@lists.sourceforge.net" "liushixin2@huawei.com" "sashal@kernel.org"] recipients (cc): []