ci2 starts bisection 2025-10-01 00:56:46.418897009 +0000 UTC m=+34683.923373811 bisecting fixing commit since c79648372d02944bf4a54d87e3901db05d0ac82e building syzkaller on 56d87229fad9ebee9698d3e78d5cd6a9b6f12fe9 ensuring issue is reproducible on original commit c79648372d02944bf4a54d87e3901db05d0ac82e testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4c0cb1e48e0bccd4d629b538fb5b781351d2c424c51213f7b0f31e7c6d02fed all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] check whether we can drop unnecessary instrumentation disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7420c259da0717e138f4dc8201b7152480b6da7ff187484acaa0e40af0dc27c0 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] the bug reproduces without the instrumentation disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed kconfig minimization: base=3707 full=7423 leaves diff=2099 split chunks (needed=false): <2099> split chunk #0 of len 2099 into 5 parts testing without sub-chunk 1/5 disabling configs for [hang memleak bug_or_warning kasan locking atomic_sleep], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1f71f869b36652026ffb9eb489345226ed4cd761f27d254dfa2b6af09801a5d2 all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [hang memleak bug_or_warning kasan locking atomic_sleep], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c24ad619dd896a9b3e24ca8264ae11345a230a3d22f4a1109878cab0dcaec796 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [kasan locking atomic_sleep hang memleak bug_or_warning], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4cd688974d74eb984e3d1abedbed88e30daa63c98c5d36c19397091f110eb6e9 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8d5795af55299cbc46b15a01261d7f81882b1520b2ce700453a4d7d31e6a4345 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak bug_or_warning kasan locking], they are not needed testing commit c79648372d02944bf4a54d87e3901db05d0ac82e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a3600b5a64e5adb7f558b54b0ee99e21db4c881757beebf87e2071f799c0383 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] the chunk can be dropped minimized to 420 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 ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID ANDROID_BINDERFS ANDROID_BINDER_IPC APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_THP_MIGRATION ASHMEM ASM_MODVERSIONS ASN1_ENCODER ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR 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_COMMON_SPECTRAL 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 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 BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP BLK_CGROUP_IOCOST BLK_CGROUP_IOLATENCY BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_CRYPTOLOOP 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_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_MQ_RDMA BLK_RQ_ALLOC_TIME BLK_WBT BLK_WBT_MQ BLOCK_LEGACY_AUTOLOAD BONDING BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD 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_AUTOSUSPEND BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK 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_MSFTEXT 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_ESD_USB2 CAN_ETAS_ES58X CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_PEAK_USB CAN_RAW CAN_SLCAN CAN_UCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC 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_DEVICE CGROUP_HUGETLB CGROUP_NET_CLASSID CGROUP_NET_PRIO CGROUP_PERF CGROUP_RDMA CGROUP_WRITEBACK 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 CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_8254 COMEDI_8255 COMEDI_8255_PCI COMEDI_8255_SA COMEDI_ADL_PCI9118 COMEDI_ADQ12B COMEDI_AIO_AIO12_8 COMEDI_AIO_IIRO_16 COMEDI_AMPLC_DIO200 COMEDI_AMPLC_DIO200_ISA COMEDI_AMPLC_PC236 COMEDI_AMPLC_PC236_ISA COMEDI_AMPLC_PC263_ISA COMEDI_BOND COMEDI_C6XDIGIO COMEDI_DAC02 COMEDI_DAS08 COMEDI_DAS08_ISA COMEDI_DAS16M1 COMEDI_DAS1800 COMEDI_DAS6402 COMEDI_DAS800 COMEDI_DMM32AT COMEDI_DT2801 COMEDI_DT2811 COMEDI_DT2814 COMEDI_DT2815 COMEDI_DT2817 COMEDI_DT282X COMEDI_DT9812 COMEDI_FL512 COMEDI_ISADMA COMEDI_ISA_DRIVERS COMEDI_KCOMEDILIB COMEDI_MISC_DRIVERS COMEDI_MPC624 COMEDI_MULTIQ3 COMEDI_NI_ATMIO16D COMEDI_NI_AT_A2150 COMEDI_NI_AT_AO COMEDI_NI_DAQ_700_CS COMEDI_NI_LABPC COMEDI_NI_LABPC_CS COMEDI_NI_LABPC_ISA COMEDI_NI_LABPC_ISADMA COMEDI_NI_LABPC_PCI COMEDI_NI_USB6501 COMEDI_PARPORT COMEDI_PCI_DRIVERS COMEDI_PCL711 COMEDI_PCL724 COMEDI_PCL726 COMEDI_PCL730 COMEDI_PCL812 COMEDI_PCL816 COMEDI_PCL818 COMEDI_PCM3724 COMEDI_PCMAD COMEDI_PCMCIA_DRIVERS COMEDI_PCMDA12 COMEDI_PCMMIO COMEDI_PCMUIO COMEDI_RTI800 COMEDI_RTI802 COMEDI_S526 COMEDI_TEST COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 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_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_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL 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_ECB CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL 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_LIB_SM4 CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM4 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_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_VADDR DCA DCB DEBUG_PREEMPT DMA_CMA FSCACHE FUSE_FS HAMRADIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_LEDS MEDIA_SUPPORT MTD NET_CLS_U32 PARTITION_ADVANCED PCCARD PCMCIA PREEMPTION RFKILL SERIAL_DEV_BUS STAGING TLS TLS_DEVICE USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH] disabling configs for [kasan locking atomic_sleep hang memleak bug_or_warning], they are not needed testing current HEAD 43bb85222e53926decace01ce6584ca88e09a0a9 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 02e793ed2c733ab08e6983b4d183e73c7437fb152b56fa742c3c308c44e3ae81 all runs: OK false negative chance: 0.000 # git bisect start 43bb85222e53926decace01ce6584ca88e09a0a9 c79648372d02944bf4a54d87e3901db05d0ac82e Bisecting: 376 revisions left to test after this (roughly 9 steps) [56c4837283ebe72b409688286ab39ad262fc76b8] wifi: rtlwifi: fix possible skb memory leak in _rtl_pci_init_one_rxdesc() determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit 56c4837283ebe72b409688286ab39ad262fc76b8 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 42252bce4eb6f93eacdae8049b588936569dbcfc76255f2a1580757ef843392a all runs: OK false negative chance: 0.000 # git bisect bad 56c4837283ebe72b409688286ab39ad262fc76b8 Bisecting: 187 revisions left to test after this (roughly 8 steps) [5867d62dfe924498c77b465160afb983d8503a2d] crypto: keembay - Fix dma_unmap_sg() nents value determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit 5867d62dfe924498c77b465160afb983d8503a2d gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 14bd534a3e9302d20830de1ad207e7dc1bb459fcee1dc0e062d6677bef752d96 all runs: OK false negative chance: 0.000 # git bisect bad 5867d62dfe924498c77b465160afb983d8503a2d Bisecting: 93 revisions left to test after this (roughly 7 steps) [8aa46b2428b8829fb4ca16e8af3a2c3458e67ebd] dpaa2-switch: Fix device reference count leak in MAC endpoint handling determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit 8aa46b2428b8829fb4ca16e8af3a2c3458e67ebd gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 98d6ca7216612fdac7210ed0b6e67176a3975d69d31c4022da55fd85ef82c359 all runs: OK false negative chance: 0.000 # git bisect bad 8aa46b2428b8829fb4ca16e8af3a2c3458e67ebd Bisecting: 46 revisions left to test after this (roughly 6 steps) [a6a238c4126eb3ddb495d3f960193ca5bb778d92] usb: net: sierra: check for no status endpoint determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit a6a238c4126eb3ddb495d3f960193ca5bb778d92 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e2aa74bc1d213e49934c42ebba55c061ce56588b4b0a0d95672f4c16e7c271a all runs: OK false negative chance: 0.000 # git bisect bad a6a238c4126eb3ddb495d3f960193ca5bb778d92 Bisecting: 23 revisions left to test after this (roughly 5 steps) [5fd9150de7738ec40268cc44fc751d50c24e4788] pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_gov determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit 5fd9150de7738ec40268cc44fc751d50c24e4788 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8ce855d476c5c12af6e5e62706c8b6ed64835c1243feddbb3a38cccf8954e84b all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] # git bisect good 5fd9150de7738ec40268cc44fc751d50c24e4788 Bisecting: 11 revisions left to test after this (roughly 4 steps) [c53570e62b5b28bdb56bb563190227f8307817a5] comedi: Fix use of uninitialized data in insn_rw_emulate_bits() determine whether the revision contains the guilty commit revision c79648372d02944bf4a54d87e3901db05d0ac82e crashed and is reachable testing commit c53570e62b5b28bdb56bb563190227f8307817a5 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e3b7d72f7d03d27d61542bb707881f58469e782deb63a054b4a7de08e85e0735 all runs: OK false negative chance: 0.000 # git bisect bad c53570e62b5b28bdb56bb563190227f8307817a5 Bisecting: 5 revisions left to test after this (roughly 3 steps) [29ef03e5b84431171d6b77b822985b54bc44b793] comedi: pcl812: Fix bit shift out of bounds determine whether the revision contains the guilty commit revision 5fd9150de7738ec40268cc44fc751d50c24e4788 crashed and is reachable testing commit 29ef03e5b84431171d6b77b822985b54bc44b793 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 30cb57392181363212459271f25a76d22e55fda347eebf48277aa00acdcf2e67 all runs: crashed: UBSAN: shift-out-of-bounds in aio_iiro_16_attach representative crash: UBSAN: shift-out-of-bounds in aio_iiro_16_attach, types: [UBSAN] # git bisect good 29ef03e5b84431171d6b77b822985b54bc44b793 Bisecting: 2 revisions left to test after this (roughly 2 steps) [73f34d609397805c20d6b2ef5c07a4cbf7c4d63a] comedi: das6402: Fix bit shift out of bounds determine whether the revision contains the guilty commit revision 5fd9150de7738ec40268cc44fc751d50c24e4788 crashed and is reachable testing commit 73f34d609397805c20d6b2ef5c07a4cbf7c4d63a gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c6d99df51e05801899f3d88207adfa3f1e21a06a5c32c20ea8f0a6cd6cebe1a1 all runs: OK false negative chance: 0.000 # git bisect bad 73f34d609397805c20d6b2ef5c07a4cbf7c4d63a Bisecting: 0 revisions left to test after this (roughly 1 step) [b3c95fa508e5dc3da60520eea92a5241095ceef1] comedi: das16m1: Fix bit shift out of bounds determine whether the revision contains the guilty commit revision 5fd9150de7738ec40268cc44fc751d50c24e4788 crashed and is reachable testing commit b3c95fa508e5dc3da60520eea92a5241095ceef1 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 938da59c830e9c611c8461f76d9e480d7a1c4a79a544771180a076a354254fa4 all runs: OK false negative chance: 0.000 # git bisect bad b3c95fa508e5dc3da60520eea92a5241095ceef1 Bisecting: 0 revisions left to test after this (roughly 0 steps) [c593215385f0c0163015cca4512ed3ff42875d19] comedi: aio_iiro_16: Fix bit shift out of bounds determine whether the revision contains the guilty commit revision 29ef03e5b84431171d6b77b822985b54bc44b793 crashed and is reachable testing commit c593215385f0c0163015cca4512ed3ff42875d19 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8285ee2cad8170bba5dbaf09f3f35a688b582b832026337ee56fbb090c5b977a all runs: OK false negative chance: 0.000 # git bisect bad c593215385f0c0163015cca4512ed3ff42875d19 c593215385f0c0163015cca4512ed3ff42875d19 is the first bad commit commit c593215385f0c0163015cca4512ed3ff42875d19 Author: Ian Abbott Date: Mon Jul 7 14:46:22 2025 +0100 comedi: aio_iiro_16: Fix bit shift out of bounds commit 66acb1586737a22dd7b78abc63213b1bcaa100e4 upstream. When checking for a supported IRQ number, the following test is used: if ((1 << it->options[1]) & 0xdcfc) { However, `it->options[i]` is an unchecked `int` value from userspace, so the shift amount could be negative or out of bounds. Fix the test by requiring `it->options[1]` to be within bounds before proceeding with the original test. Valid `it->options[1]` values that select the IRQ will be in the range [1,15]. The value 0 explicitly disables the use of interrupts. Fixes: ad7a370c8be4 ("staging: comedi: aio_iiro_16: add command support for change of state detection") Cc: stable@vger.kernel.org # 5.13+ Signed-off-by: Ian Abbott Link: https://lore.kernel.org/r/20250707134622.75403-1-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman drivers/comedi/drivers/aio_iiro_16.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 8285ee2cad8170bba5dbaf09f3f35a688b582b832026337ee56fbb090c5b977a parent signature: 30cb57392181363212459271f25a76d22e55fda347eebf48277aa00acdcf2e67 revisions tested: 18, total time: 4h3m32.735302335s (build: 1h45m58.840848301s, test: 2h12m21.508421298s) first good commit: c593215385f0c0163015cca4512ed3ff42875d19 comedi: aio_iiro_16: Fix bit shift out of bounds recipients (to): ["abbotti@mev.co.uk" "gregkh@linuxfoundation.org"] recipients (cc): []