ci starts bisection 2024-02-11 01:49:43.859731891 +0000 UTC m=+112328.528280468 bisecting fixing commit since b46ae77f67874918c540feb1e37a63308b2c9290 building syzkaller on 5b429f39ae82dfd954322d3f42c830cf560f51d2 ensuring issue is reproducible on original commit b46ae77f67874918c540feb1e37a63308b2c9290 testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4040e928c8e35097a8001dc9b2cc744c7e2eb72c797ddfb9e208271514826871 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, 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 b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7bf270ec88bb96ce71b739840666e9c23e3d34e28877bb9604ba230889473844 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=3937 full=7658 leaves diff=2018 split chunks (needed=false): <2018> split chunk #0 of len 2018 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ef08777d240f5f8ba5c0bf13ef1866226c282fabce438c9c0cb7f840e7d74ebb all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 38e6a53d0bed44f55242e226c230b8845f841cf7d989ff4d0606d3427f7dc3cd all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a73bb135e0622e41d4253c5084a25bb4c122ec97c8950d9a767a727b1dcd18ad all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b6d873f0011b0d3f40d618b5f63196e058c6ef92cb820b653687c75425d0af93 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit b46ae77f67874918c540feb1e37a63308b2c9290 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1058def0b14b35dbb58baf4b2b5b63938877ca2d2997f46ba349e12c0aba79b all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] the chunk can be dropped minimized to 404 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_GENERIC_CRASHKERNEL_RESERVATION ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR AS_HAS_NON_CONST_LEB128 AS_IS_GNU ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_FS BCACHEFS_QUOTA BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_HAS_AUTO_VAR_INIT_ZERO_BARE CC_HAS_UBSAN_BOUNDS_STRICT CC_HAS_ZERO_CALL_USED_REGS CC_NO_ARRAY_BOUNDS CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CPU_IBPB_ENTRY CPU_IBRS_ENTRY CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRASH_CORE CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CFB CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_OFB CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEBUG_CREDENTIALS DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 7521f258ea303c827434c101884b62a2b137a942 testing commit 7521f258ea303c827434c101884b62a2b137a942 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab034d017fa9f4de04975c28155b0241834279bbb0e25ee65dac2e220a7891fe all runs: OK false negative chance: 0.000 # git bisect start 7521f258ea303c827434c101884b62a2b137a942 b46ae77f67874918c540feb1e37a63308b2c9290 Bisecting: 8003 revisions left to test after this (roughly 13 steps) [ba5afb9a84df2e6b26a1b6389b98849cd16ea757] fs: rework listmount() implementation determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit ba5afb9a84df2e6b26a1b6389b98849cd16ea757 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2210ddecb45da3d369fa159bde18542ecb99bd21c80a5ad0933e418e03967a50 all runs: OK false negative chance: 0.000 # git bisect bad ba5afb9a84df2e6b26a1b6389b98849cd16ea757 Bisecting: 3946 revisions left to test after this (roughly 12 steps) [0cb552aa97843f24549ce808883494138471c16b] Merge tag 'v6.8-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit 0cb552aa97843f24549ce808883494138471c16b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68b04f1a0aac9fb55758c502026d7ae83ea7f4448e2e97657cfa4ec3174daa63 all runs: OK false negative chance: 0.000 # git bisect bad 0cb552aa97843f24549ce808883494138471c16b Bisecting: 2010 revisions left to test after this (roughly 11 steps) [3cf1d6a5fbf3f724d12b01635319924239d42c00] Merge tag 'm68k-for-v6.8-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit 3cf1d6a5fbf3f724d12b01635319924239d42c00 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4e9095aec5209260e6b0437f2599049feeedae2191cc83acc73d991ad07bc087 all runs: OK false negative chance: 0.000 # git bisect bad 3cf1d6a5fbf3f724d12b01635319924239d42c00 Bisecting: 968 revisions left to test after this (roughly 10 steps) [e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7] Merge tag 'mlx5-fixes-2023-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3000bd7990770940071951aeb127441245341e6f952b51514faa0f940e4c57e3 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 Bisecting: 484 revisions left to test after this (roughly 9 steps) [73ab9e03861c22ec6723b7b110d62ba60f37c164] bcachefs: Factor out darray resize slowpath determine whether the revision contains the guilty commit revision e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 crashed and is reachable testing commit 73ab9e03861c22ec6723b7b110d62ba60f37c164 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2f1336e2e683756e8b5681fd7a82cf5d8244b4ffaf398760706c18f0640edae8 all runs: OK false negative chance: 0.000 # git bisect bad 73ab9e03861c22ec6723b7b110d62ba60f37c164 Bisecting: 257 revisions left to test after this (roughly 8 steps) [a4aebe936554dac6a91e5d091179c934f8325708] posix-timers: Get rid of [COMPAT_]SYS_NI() uses determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit a4aebe936554dac6a91e5d091179c934f8325708 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 53f5932a0b952860f1e6fb3b493cd5f66e700c558cdcf9e2ca58314bfba5ee06 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good a4aebe936554dac6a91e5d091179c934f8325708 Bisecting: 127 revisions left to test after this (roughly 7 steps) [5414aea7b7508d01235ea0c95064ad66395c3239] Merge tag 'sound-6.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 crashed and is reachable testing commit 5414aea7b7508d01235ea0c95064ad66395c3239 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 868ed12eee584ff977d7e8ab0d57aa4741b397a01f5f32a98b76da958fee0ee4 all runs: OK false negative chance: 0.000 # git bisect bad 5414aea7b7508d01235ea0c95064ad66395c3239 Bisecting: 63 revisions left to test after this (roughly 6 steps) [937fd403380023d065fd0509caa7eff639b144a0] Merge tag 'afs-fixes-20231221' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit 937fd403380023d065fd0509caa7eff639b144a0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ca8a1c539565ee6c8bf1ed5ce30e64c0a904342cb8cc8bd999684e4bf7039c3 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good 937fd403380023d065fd0509caa7eff639b144a0 Bisecting: 32 revisions left to test after this (roughly 5 steps) [b7bc7bce88bdf52ec2b47c576fb51269a521bd9a] Merge tag 'for-linus-6.7a-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip determine whether the revision contains the guilty commit revision 937fd403380023d065fd0509caa7eff639b144a0 crashed and is reachable testing commit b7bc7bce88bdf52ec2b47c576fb51269a521bd9a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f1882394345142cd09ed814a8939fc6e2d594bf054f1c4cfe253e969b0dbb812 all runs: OK false negative chance: 0.000 # git bisect bad b7bc7bce88bdf52ec2b47c576fb51269a521bd9a Bisecting: 16 revisions left to test after this (roughly 4 steps) [d4b6e7f582e29acac17bcaf7f7771138d72f89d2] Merge tag 'drm-intel-fixes-2023-12-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit d4b6e7f582e29acac17bcaf7f7771138d72f89d2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6ce9a2919fd2cad91eed57ececc1dc9ad70d9328850484a1638dc4c0bbfe45aa all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good d4b6e7f582e29acac17bcaf7f7771138d72f89d2 Bisecting: 9 revisions left to test after this (roughly 3 steps) [14694179e561b5f2f7e56a0f590e2cb49a9cc7ab] pinctrl: at91-pio4: use dedicated lock class for IRQ determine whether the revision contains the guilty commit revision b46ae77f67874918c540feb1e37a63308b2c9290 crashed and is reachable testing commit 14694179e561b5f2f7e56a0f590e2cb49a9cc7ab gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 948f71942e4d098eff28f455bd0abd10a041d78d01ac17c8f66c8f6ed7544454 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good 14694179e561b5f2f7e56a0f590e2cb49a9cc7ab Bisecting: 5 revisions left to test after this (roughly 2 steps) [24e0d2e527a39f64caeb2e6be39ad5396fb2da5e] Merge tag 'pinctrl-v6.7-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl determine whether the revision contains the guilty commit revision e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 crashed and is reachable testing commit 24e0d2e527a39f64caeb2e6be39ad5396fb2da5e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 09e72cf92b99685a39468f780efb8fe6fe2904c981121c53696215467de47cd4 all runs: OK false negative chance: 0.000 # git bisect bad 24e0d2e527a39f64caeb2e6be39ad5396fb2da5e Bisecting: 1 revision left to test after this (roughly 1 step) [af73483f4e8b6f5c68c9aa63257bdd929a9c194a] ida: Fix crash in ida_free when the bitmap is empty determine whether the revision contains the guilty commit revision e9b797dc7af995ac237b4c0b3a9463c5c54c0ff7 crashed and is reachable testing commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2d0461d24cc6ad7b9d38579dce3afcc8e97ba1c4b4e563a436249e874bc2951f all runs: OK false negative chance: 0.000 # git bisect bad af73483f4e8b6f5c68c9aa63257bdd929a9c194a Bisecting: 0 revisions left to test after this (roughly 0 steps) [a9e01ac8c5ff32669119c40dfdc9e80eb0b7d7aa] afs: Fix overwriting of result of DNS query determine whether the revision contains the guilty commit revision a4aebe936554dac6a91e5d091179c934f8325708 crashed and is reachable testing commit a9e01ac8c5ff32669119c40dfdc9e80eb0b7d7aa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1334febb55adf26710f77ff0b09666245728021fded7ac10fba4651938407cf3 all runs: crashed: KASAN: null-ptr-deref Read in ida_free representative crash: KASAN: null-ptr-deref Read in ida_free, types: [KASAN] # git bisect good a9e01ac8c5ff32669119c40dfdc9e80eb0b7d7aa af73483f4e8b6f5c68c9aa63257bdd929a9c194a is the first bad commit commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a Author: Matthew Wilcox (Oracle) Date: Thu Dec 21 16:53:57 2023 +0000 ida: Fix crash in ida_free when the bitmap is empty The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings. Reported-by: Zhenghan Wang Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Linus Torvalds lib/idr.c | 2 +- lib/test_ida.c | 40 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 2d0461d24cc6ad7b9d38579dce3afcc8e97ba1c4b4e563a436249e874bc2951f parent signature: 1334febb55adf26710f77ff0b09666245728021fded7ac10fba4651938407cf3 revisions tested: 22, total time: 8h5m0.666649063s (build: 3h47m13.329383288s, test: 3h24m51.519552814s) first good commit: af73483f4e8b6f5c68c9aa63257bdd929a9c194a ida: Fix crash in ida_free when the bitmap is empty recipients (to): ["akpm@linux-foundation.org" "linux-fsdevel@vger.kernel.org" "torvalds@linux-foundation.org" "willy@infradead.org" "willy@infradead.org"] recipients (cc): ["linux-kernel@vger.kernel.org"]