ci starts bisection 2025-10-05 03:44:36.737226761 +0000 UTC m=+223671.124425619 bisecting cause commit starting from d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 building syzkaller on 49379ee008e5f2af6e551c2e23fcd6b1ebb4d5c2 ensuring issue is reproducible on original commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 293cd2104f329c7db941f2ec1b796c9e34a08cb670bb8a906e0d769c15ce290d all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] check whether we can drop unnecessary instrumentation disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ccd9c588c110fa8c3d313dfb59c912d5eef69eefb4d9fe306d17073d5e6523a0 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] the bug reproduces without the instrumentation disabling configs for [bug_or_warning locking atomic_sleep hang memleak ubsan], they are not needed kconfig minimization: base=4093 full=8493 leaves diff=2168 split chunks (needed=false): <2168> split chunk #0 of len 2168 into 5 parts testing without sub-chunk 1/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3de4cd01c232bc3c04cf84f4e8cb405cc3a70e35923fe8444c008c24e00ca4c9 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9154703edb4bc21f3d013d449dfe0ecab0c6edb168d680c44f8ab8d8f2d8a41e all runs: OK false negative chance: 0.000 testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning locking atomic_sleep hang], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8163103e410cac67b52f4ec1b8f1df8aa60a59c0b1a47f04f5fb00db50d487ab all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 52e3d3544d6018e3ee88584f020a6e9e24e2838cf7995a5be335f859a9533118 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [atomic_sleep hang memleak ubsan bug_or_warning locking], they are not needed testing commit d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b4a2dc8726fc9710bf9b79202e23f5e658761d4c74f17b8bc1aa48e8680bfc61 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] the chunk can be dropped minimized to 434 configs; suspects: [6LOWPAN ARCH_ENABLE_MEMORY_HOTREMOVE ASUS_WMI BLK_DEV_ZONED CHARGER_BQ24190 CMA COMMON_CLK DAX DLM 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 DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_DSC_HELPER DRM_DISPLAY_HDCP_HELPER DRM_DISPLAY_HDMI_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION DRM_GEM_SHMEM_HELPER DRM_GM12U320 DRM_GUD DRM_I915 DRM_I915_CAPTURE_ERROR DRM_I915_COMPRESS_ERROR DRM_I915_USERPTR DRM_KMS_HELPER DRM_MIPI_DSI DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_EDP DRM_PANEL_ORIENTATION_QUIRKS DRM_SIMPLEDRM DRM_SYSFB_HELPER DRM_TTM DRM_TTM_HELPER DRM_UDL DRM_VGEM DRM_VIRTIO_GPU DRM_VIRTIO_GPU_KMS DRM_VKMS DRM_VMWGFX DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_CORE DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 ECRYPT_FS ECRYPT_FS_MESSAGING EDAC EFS_FS ENCRYPTED_KEYS EPROBE_EVENTS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXTCON EXTCON_INTEL_CHT_WC EXTCON_PTN5150 EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FANOTIFY FANOTIFY_ACCESS_PERMISSIONS FB FB_CFB_COPYAREA FB_CFB_FILLRECT FB_CFB_IMAGEBLIT FB_CORE FB_DEFERRED_IO FB_DEVICE FB_IOMEM_FOPS FB_IOMEM_HELPERS FB_NOTIFY FB_SYSMEM_FOPS FB_SYSMEM_HELPERS FB_SYSMEM_HELPERS_DEFERRED FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VESA FB_VGA16 FB_VIRTUAL FDDI FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FONT_8x16 FONT_8x8 FONT_SUPPORT FRAMEBUFFER_CONSOLE FRAMEBUFFER_CONSOLE_DETECT_PRIMARY FRAMEBUFFER_CONSOLE_ROTATION FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_STACK FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FUSE_DAX FUSE_FS FW_LOADER_COMPRESS FW_LOADER_PAGED_BUF FW_LOADER_SYSFS FW_LOADER_USER_HELPER FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GARP GENDWARFKSYMS GENERIC_IRQ_ENTRY GENERIC_PHY GENERIC_SYSCALL GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIOLIB GPIOLIB_IRQCHIP GPIOLIB_LEGACY GPIO_ACPI GPIO_DLN2 GPIO_LJCA GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GROUP_SCHED_BANDWIDTH GTP GUEST_PERF_EVENTS HAVE_ARCH_KSTACK_ERASE HAVE_ARCH_NODE_DEV_GROUP HAVE_ARCH_USERFAULTFD_MINOR HAVE_ARCH_USERFAULTFD_WP HAVE_BOOTMEM_INFO_NODE HAVE_CLK_PREPARE HAVE_GENERIC_TIF_BITS HAVE_KVM_CPU_RELAX_INTERCEPT HAVE_KVM_DIRTY_RING HAVE_KVM_DIRTY_RING_ACQ_REL HAVE_KVM_DIRTY_RING_TSO HAVE_KVM_IRQCHIP HAVE_KVM_IRQ_BYPASS HAVE_KVM_IRQ_ROUTING HAVE_KVM_MSI HAVE_KVM_NO_POLL HAVE_KVM_PFNCACHE HAVE_KVM_PM_NOTIFIER HAVE_KVM_READONLY_MEM HAVE_SCHED_AVG_IRQ HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_DRAGONRISE HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_EVISION HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GOOGLE_STADIA_FF HID_GREENASIA HID_GT683R HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2200 HID_MCP2221 HID_MEGAWORLD_FF HID_MULTITOUCH HID_NTI HID_ORTEK HID_PENMOUNT HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEELSERIES HID_THINGM HID_TIVO HID_TOPRE HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPET_MMAP HPET_MMAP_DEFAULT HPFS_FS I2C_ALGOBIT I2C_CHARDEV I2C_CP2615 I2C_DESIGNWARE_CORE I2C_DESIGNWARE_PLATFORM I2C_DIOLAN_U2C I2C_DLN2 I2C_HID_ACPI I2C_HID_CORE I2C_HID_OF I2C_LJCA I2C_MUX I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IIO IIO_BUFFER IIO_KFIFO_BUF IIO_TRIGGER IIO_TRIGGERED_BUFFER IKCONFIG IKCONFIG_PROC IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_TCP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING INTEL_CHTWC_INT33FE INTEL_IDMA64 INTEL_IOATDMA INTEL_IOMMU_DEFAULT_ON INTEL_IOMMU_SVM INTEL_ISHTP_ECLITE INTEL_ISH_FIRMWARE_DOWNLOADER INTEL_ISH_HID INTEL_SOC_PMIC_CHTWC INTERVAL_TREE_SPAN_ITER IOMMUFD IOMMUFD_DRIVER IOMMUFD_DRIVER_CORE IOMMUFD_TEST IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_FIB_TRIE_STATS IP_MROUTE_MULTIPLE_TABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_TARGET_ECN IP_NF_TARGET_SYNPROXY IP_ROUTE_CLASSID IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IRQ_TIME_ACCOUNTING LAPB LCD_CLASS_DEVICE LEDS_CLASS_MULTICOLOR MAC802154 MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_VIPERBOARD MODVERSIONS MPTCP MTD NETFILTER_ADVANCED NET_ACT_GACT NET_ACT_MIRRED NET_IPGRE_DEMUX NFT_COMPAT NFT_COMPAT_ARP NFT_FWD_NETDEV NF_TABLES NF_TABLES_ARP NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RAS RC_CORE REGULATOR RFKILL SND SOUND STAGING TRANSPARENT_HUGEPAGE TRUSTED_KEYS TYPEC TYPEC_MUX_PI3USB30532 USB_LJCA USB_ROLES_INTEL_XHCI USB_ROLE_SWITCH VIDEO_DEV VIRTIO_FS WAN ZONE_DEVICE] disabling configs for [hang memleak ubsan bug_or_warning locking atomic_sleep], they are not needed picked [v6.17 v6.16 v6.15 v6.13 v6.11 v6.9 v6.7 v6.5 v6.2 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 40 release tags testing release v6.17 testing commit e5f0a698b34ed76002dc5cff3804a61c80233a7a gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ca92480ada6bcf7e96c540a58798dfa664ea2ed76d3e4633acb390d3799e32e7 all runs: OK false negative chance: 0.000 # git bisect start d104e3d17f7bfc505281f57f8c1a5589fca6ffe4 e5f0a698b34ed76002dc5cff3804a61c80233a7a Bisecting: 5409 revisions left to test after this (roughly 12 steps) [05a54fa773284d1a7923cdfdd8f0c8dabb98bd26] Merge tag 'sound-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 05a54fa773284d1a7923cdfdd8f0c8dabb98bd26 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 93f9663b69f56267d4fa2b1b51c4ccf6606f05f91471e8af7274432a646099c3 all runs: OK false negative chance: 0.000 # git bisect good 05a54fa773284d1a7923cdfdd8f0c8dabb98bd26 Bisecting: 3482 revisions left to test after this (roughly 11 steps) [f79e772258df311c2cb21594ca0996318e720d28] Merge tag 'media/v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media testing commit f79e772258df311c2cb21594ca0996318e720d28 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb222b5c73d666106843e82f56185a9e00bdc1ef7d9bd32d0135fdf6f69c3234 all runs: OK false negative chance: 0.000 # git bisect good f79e772258df311c2cb21594ca0996318e720d28 Bisecting: 1747 revisions left to test after this (roughly 11 steps) [07fdad3a93756b872da7b53647715c48d0f4a2d0] Merge tag 'net-next-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 07fdad3a93756b872da7b53647715c48d0f4a2d0 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c63b300b6f467107586af90fa2d3abcac183066a39b1c49c40fc6ab1e523b80f all runs: OK false negative chance: 0.000 # git bisect good 07fdad3a93756b872da7b53647715c48d0f4a2d0 Bisecting: 918 revisions left to test after this (roughly 10 steps) [50647a1176b7abd1b4ae55b491eb2fbbeef89db9] Merge tag 'pull-f_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs testing commit 50647a1176b7abd1b4ae55b491eb2fbbeef89db9 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9bb1bde8de33ea8775006e885d764b21019abe445201de1fb64d5d011357acd7 all runs: OK false negative chance: 0.000 # git bisect good 50647a1176b7abd1b4ae55b491eb2fbbeef89db9 Bisecting: 436 revisions left to test after this (roughly 9 steps) [674b0ddb7586a192612442c3aed9cf523faeed7a] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 674b0ddb7586a192612442c3aed9cf523faeed7a gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 412dfe531b225b2894bec4c3c5d4766f2e657a2c4d6fbd312986c468663abf01 all runs: OK false negative chance: 0.000 # git bisect good 674b0ddb7586a192612442c3aed9cf523faeed7a Bisecting: 237 revisions left to test after this (roughly 8 steps) [99cab80208809cb918d6e579e6165279096f058a] Merge tag 'kvm-x86-generic-6.18' of https://github.com/kvm-x86/linux into HEAD testing commit 99cab80208809cb918d6e579e6165279096f058a gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 726175d07b863997e1d7c61813e086af3f18b00d37166bdfa713fd79e3adccbc all runs: OK false negative chance: 0.000 # git bisect good 99cab80208809cb918d6e579e6165279096f058a Bisecting: 126 revisions left to test after this (roughly 7 steps) [7c738cb4ca678e70c4583ab35587f30bfae823e5] Merge tag 'x86_entry_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 7c738cb4ca678e70c4583ab35587f30bfae823e5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7d447bdcf89e4a97132820b647dce96436015bcd19187fd5c94d6a5323733e40 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] # git bisect bad 7c738cb4ca678e70c4583ab35587f30bfae823e5 Bisecting: 62 revisions left to test after this (roughly 6 steps) [407aa63018d15c35a34938633868e61174d2ef6e] vfio/nvgrace-gpu: Add GB300 SKU to the devid table testing commit 407aa63018d15c35a34938633868e61174d2ef6e gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cff98726f26858d84625864643d37d1e6293348637413d58b7fbdac1dd3002e0 all runs: OK false negative chance: 0.000 # git bisect good 407aa63018d15c35a34938633868e61174d2ef6e Bisecting: 27 revisions left to test after this (roughly 5 steps) [bf897d2626abe4559953342e2f7dda05d034c8c7] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost testing commit bf897d2626abe4559953342e2f7dda05d034c8c7 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 73c1a2cc01a5d56a5364c8755951c64b906e87b062ae4312672deddd174f2cc0 all runs: OK false negative chance: 0.000 # git bisect good bf897d2626abe4559953342e2f7dda05d034c8c7 Bisecting: 13 revisions left to test after this (roughly 4 steps) [e414b1005891d74bb0c3d27684c58dfbfbd1754b] x86/virt/tdx: Use precalculated TDVPR page physical address testing commit e414b1005891d74bb0c3d27684c58dfbfbd1754b gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 32c9f18e83673576c289779d764d44e9d56ed22a622369219ad99102a75bb930 all runs: OK false negative chance: 0.000 # git bisect good e414b1005891d74bb0c3d27684c58dfbfbd1754b Bisecting: 7 revisions left to test after this (roughly 3 steps) [fdbdd0ccb30af18d3b29e714ac8d5ab6163279e0] kdb: remove redundant check for scancode 0xe0 testing commit fdbdd0ccb30af18d3b29e714ac8d5ab6163279e0 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e0142741de2f00f63c7cdd3dd6e78fad038229b04a476222b580aefcc7d7419e all runs: OK false negative chance: 0.000 # git bisect good fdbdd0ccb30af18d3b29e714ac8d5ab6163279e0 Bisecting: 4 revisions left to test after this (roughly 2 steps) [50ac57c3b156e893e34310f0be340a130f36f6db] Merge tag 'x86_tdx_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 50ac57c3b156e893e34310f0be340a130f36f6db gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a7c172d137355f62f1942a2703261162c4ede09034c6febb90d2694c13f4bfa6 all runs: OK false negative chance: 0.000 # git bisect good 50ac57c3b156e893e34310f0be340a130f36f6db Bisecting: 2 revisions left to test after this (roughly 1 step) [3da01ffe1aeaa0d427ab5235ba735226670a80d9] x86/fred: Remove ENDBR64 from FRED entry points testing commit 3da01ffe1aeaa0d427ab5235ba735226670a80d9 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a41bb249dd12eee6bc7631ec915f1798d4cf8452c03abd70cac39483f6c722b2 all runs: OK false negative chance: 0.000 # git bisect good 3da01ffe1aeaa0d427ab5235ba735226670a80d9 Bisecting: 0 revisions left to test after this (roughly 1 step) [be786eba12c87dc04ad8eac408dc17369c04ad47] Merge tag 'x86_mm_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit be786eba12c87dc04ad8eac408dc17369c04ad47 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab4857bf86d98872ab867a494006690eff9fc7d3b395b269762274818ac993b4 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] # git bisect bad be786eba12c87dc04ad8eac408dc17369c04ad47 Bisecting: 0 revisions left to test after this (roughly 0 steps) [86e6815b316ec0ea8c4bb3c16a033219a52b6060] x86/mm: Change cpa_flush() to call flush_kernel_range() directly testing commit 86e6815b316ec0ea8c4bb3c16a033219a52b6060 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a0b75729e43785aa56a34ec79ae0a657802c1a0c02aa6daca6f32f7b970ee355 all runs: crashed: KASAN: slab-out-of-bounds Read in __cpa_addr representative crash: KASAN: slab-out-of-bounds Read in __cpa_addr, types: [KASAN-READ] # git bisect bad 86e6815b316ec0ea8c4bb3c16a033219a52b6060 86e6815b316ec0ea8c4bb3c16a033219a52b6060 is the first bad commit commit 86e6815b316ec0ea8c4bb3c16a033219a52b6060 Author: Yu-cheng Yu Date: Fri Jun 6 13:10:35 2025 -0400 x86/mm: Change cpa_flush() to call flush_kernel_range() directly The function cpa_flush() calls __flush_tlb_one_kernel() and flush_tlb_all(). Replacing that with a call to flush_tlb_kernel_range() allows cpa_flush() to make use of INVLPGB or RAR without any additional changes. Initialize invlpgb_count_max to 1, since flush_tlb_kernel_range() can now be called before invlpgb_count_max has been initialized to the value read from CPUID. [riel: remove now unused __cpa_flush_tlb] Signed-off-by: Yu-cheng Yu Signed-off-by: Rik van Riel Signed-off-by: Dave Hansen Acked-by: Dave Hansen Link: https://lore.kernel.org/all/20250606171112.4013261-4-riel%40surriel.com arch/x86/mm/pat/set_memory.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) accumulated error probability: 0.00 parent commit c17b750b3ad9f45f2b6f7e6f7f4679844244f0b9 wasn't tested testing commit c17b750b3ad9f45f2b6f7e6f7f4679844244f0b9 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: addff903a843e6273f6211f5521965d9e7c15355d84c1ae7e843a2263ed4ce22 culprit signature: a0b75729e43785aa56a34ec79ae0a657802c1a0c02aa6daca6f32f7b970ee355 parent signature: addff903a843e6273f6211f5521965d9e7c15355d84c1ae7e843a2263ed4ce22 revisions tested: 23, total time: 8h29m21.707410676s (build: 4h47m31.246015621s, test: 3h1m42.811696786s) first bad commit: 86e6815b316ec0ea8c4bb3c16a033219a52b6060 x86/mm: Change cpa_flush() to call flush_kernel_range() directly recipients (to): ["dave.hansen@linux.intel.com" "riel@surriel.com" "yu-cheng.yu@intel.com"] recipients (cc): [] crash: KASAN: slab-out-of-bounds Read in __cpa_addr ================================================================== BUG: KASAN: slab-out-of-bounds in __cpa_addr arch/x86/mm/pat/set_memory.c:309 [inline] BUG: KASAN: slab-out-of-bounds in __cpa_addr+0x1a2/0x200 arch/x86/mm/pat/set_memory.c:306 Read of size 8 at addr ffff8881123028f8 by task syz.3.17/3606 CPU: 0 UID: 0 PID: 3606 Comm: syz.3.17 Not tainted syzkaller #0 PREEMPT(none) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x5a/0x90 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcd/0x630 mm/kasan/report.c:482 kasan_report+0xe0/0x110 mm/kasan/report.c:595 __cpa_addr arch/x86/mm/pat/set_memory.c:309 [inline] __cpa_addr+0x1a2/0x200 arch/x86/mm/pat/set_memory.c:306 cpa_flush+0x201/0x830 arch/x86/mm/pat/set_memory.c:449 change_page_attr_set_clr+0x269/0x3b0 arch/x86/mm/pat/set_memory.c:2115 cpa_set_pages_array arch/x86/mm/pat/set_memory.c:2137 [inline] _set_pages_array+0x14f/0x1f0 arch/x86/mm/pat/set_memory.c:2521 drm_gem_shmem_get_pages_locked+0x299/0x380 drivers/gpu/drm/drm_gem_shmem_helper.c:214 drm_gem_shmem_mmap drivers/gpu/drm/drm_gem_shmem_helper.c:646 [inline] drm_gem_shmem_mmap+0xae/0x470 drivers/gpu/drm/drm_gem_shmem_helper.c:620 drm_gem_mmap_obj+0x157/0x470 drivers/gpu/drm/drm_gem.c:1139 drm_gem_mmap+0x33f/0x5d0 drivers/gpu/drm/drm_gem.c:1217 vfs_mmap include/linux/fs.h:2289 [inline] mmap_file mm/internal.h:167 [inline] __mmap_new_file_vma mm/vma.c:2413 [inline] __mmap_new_vma mm/vma.c:2476 [inline] __mmap_region+0x132c/0x21f0 mm/vma.c:2669 mmap_region+0x11d/0x2f0 mm/vma.c:2739 do_mmap+0xa6b/0xf60 mm/mmap.c:558 vm_mmap_pgoff+0x217/0x390 mm/util.c:580 ksys_mmap_pgoff+0x2e9/0x450 mm/mmap.c:604 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x6d/0x2f0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f35bad8eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f35bbc6b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f35bafe5fa0 RCX: 00007f35bad8eec9 RDX: 0000000000000004 RSI: 0000000000004000 RDI: 0000200000001000 RBP: 00007f35bae11f91 R08: 0000000000000003 R09: 0000000100000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f35bafe6038 R14: 00007f35bafe5fa0 R15: 00007ffefeb3bfb8 The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888112301800 pfn:0x112300 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x100000000000040(head|node=0|zone=2) page_type: f8(unknown) raw: 0100000000000040 0000000000000000 dead000000000122 0000000000000000 raw: ffff888112301800 0000000000000000 00000000f8000000 0000000000000000 head: 0100000000000040 0000000000000000 dead000000000122 0000000000000000 head: ffff888112301800 0000000000000000 00000000f8000000 0000000000000000 head: 0100000000000002 ffffea000448c001 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x428c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_COMP), pid 3606, tgid 3605 (syz.3.17), ts 71150223140, free_ts 71137866445 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x168/0x1d0 mm/page_alloc.c:1851 prep_new_page mm/page_alloc.c:1859 [inline] get_page_from_freelist+0x115d/0x4310 mm/page_alloc.c:3858 __alloc_frozen_pages_noprof+0x20c/0x470 mm/page_alloc.c:5148 alloc_pages_mpol+0x135/0x400 mm/mempolicy.c:2416 ___kmalloc_large_node+0xf0/0x130 mm/slub.c:4306 __kmalloc_large_node_noprof+0x18/0xc0 mm/slub.c:4337 __do_kmalloc_node mm/slub.c:4353 [inline] __kvmalloc_node_noprof+0x4bd/0x660 mm/slub.c:5052 kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline] drm_gem_get_pages+0x114/0x720 drivers/gpu/drm/drm_gem.c:640 drm_gem_shmem_get_pages_locked+0x15c/0x380 drivers/gpu/drm/drm_gem_shmem_helper.c:200 drm_gem_shmem_mmap drivers/gpu/drm/drm_gem_shmem_helper.c:646 [inline] drm_gem_shmem_mmap+0xae/0x470 drivers/gpu/drm/drm_gem_shmem_helper.c:620 drm_gem_mmap_obj+0x157/0x470 drivers/gpu/drm/drm_gem.c:1139 drm_gem_mmap+0x33f/0x5d0 drivers/gpu/drm/drm_gem.c:1217 vfs_mmap include/linux/fs.h:2289 [inline] mmap_file mm/internal.h:167 [inline] __mmap_new_file_vma mm/vma.c:2413 [inline] __mmap_new_vma mm/vma.c:2476 [inline] __mmap_region+0x132c/0x21f0 mm/vma.c:2669 mmap_region+0x11d/0x2f0 mm/vma.c:2739 do_mmap+0xa6b/0xf60 mm/mmap.c:558 vm_mmap_pgoff+0x217/0x390 mm/util.c:580 page last free pid 3606 tgid 3605 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0x801/0x1120 mm/page_alloc.c:2895 stack_depot_save_flags+0x345/0x8d0 lib/stackdepot.c:727 kasan_save_stack+0x42/0x60 mm/kasan/common.c:48 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:330 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:356 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4180 [inline] slab_alloc_node mm/slub.c:4229 [inline] kmem_cache_alloc_noprof+0x1c9/0x3f0 mm/slub.c:4236 radix_tree_node_alloc.constprop.0+0x185/0x300 lib/radix-tree.c:253 idr_get_free+0x49e/0x860 lib/radix-tree.c:1506 idr_alloc_u32+0x148/0x270 lib/idr.c:46 idr_alloc+0x75/0xc0 lib/idr.c:87 drm_gem_handle_create_tail+0xf2/0x450 drivers/gpu/drm/drm_gem.c:452 drm_gem_shmem_create_with_handle drivers/gpu/drm/drm_gem_shmem_helper.c:446 [inline] drm_gem_shmem_dumb_create+0x1a1/0x260 drivers/gpu/drm/drm_gem_shmem_helper.c:534 drm_ioctl_kernel+0x165/0x2e0 drivers/gpu/drm/drm_ioctl.c:796 drm_ioctl+0x4af/0xb00 drivers/gpu/drm/drm_ioctl.c:893 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl fs/ioctl.c:584 [inline] __x64_sys_ioctl+0x134/0x1c0 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x6d/0x2f0 arch/x86/entry/syscall_64.c:94 Memory state around the buggy address: ffff888112302780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888112302800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888112302880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fe ^ ffff888112302900: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe ffff888112302980: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe 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