ci starts bisection 2024-10-04 04:46:39.293859008 +0000 UTC m=+68938.739714117 bisecting cause commit starting from c02d24a5af66a9806922391493205a344749f2c4 building syzkaller on d7906effc263366a8b067258cec67072b29aa5e0 ensuring issue is reproducible on original commit c02d24a5af66a9806922391493205a344749f2c4 testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 94747f804407397e6c85dd13aca6311b5febc8a08e9ecb560de37b7218adf084 run #0: crashed: WARNING in acquire_reference_state run #1: crashed: WARNING in acquire_reference_state run #2: crashed: WARNING in acquire_reference_state run #3: crashed: WARNING in acquire_reference_state run #4: crashed: WARNING in acquire_reference_state run #5: crashed: WARNING in acquire_reference_state run #6: crashed: WARNING in acquire_reference_state run #7: crashed: WARNING in acquire_reference_state run #8: crashed: WARNING in acquire_reference_state run #9: crashed: WARNING in acquire_reference_state run #10: crashed: WARNING in acquire_reference_state run #11: crashed: WARNING in acquire_reference_state run #12: crashed: WARNING in acquire_reference_state run #13: crashed: WARNING in acquire_reference_state run #14: crashed: WARNING in acquire_reference_state run #15: crashed: WARNING in acquire_reference_state run #16: crashed: WARNING in acquire_reference_state run #17: crashed: WARNING in acquire_reference_state run #18: boot failed: KFENCE: memory corruption in add_sysfs_param run #19: boot failed: KFENCE: memory corruption in add_sysfs_param representative crash: WARNING in acquire_reference_state, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0471b959f44f7ffcae18144fbcd9b6d650b9e4f3b3769b96f45758d75c19ac9 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4045 full=8198 leaves diff=2110 split chunks (needed=false): <2110> split chunk #0 of len 2110 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c134ec614c5f8eab0b63b2aa7f46e9239e505be48512d30c629bb4c8ea0e231 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN KASAN LOCKDEP], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1eb6f0ec485cc519d68028ec6fb46761ccef2ea79d576bd7eaab4d7756e2678b run #0: crashed: WARNING in acquire_reference_state run #1: crashed: WARNING in acquire_reference_state run #2: crashed: WARNING in acquire_reference_state run #3: crashed: WARNING in acquire_reference_state run #4: crashed: WARNING in acquire_reference_state run #5: crashed: WARNING in acquire_reference_state run #6: crashed: WARNING in acquire_reference_state run #7: crashed: WARNING in acquire_reference_state run #8: crashed: WARNING in acquire_reference_state run #9: boot failed: KFENCE: memory corruption in add_sysfs_param representative crash: WARNING in acquire_reference_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0e4276837bc890707ab584853732abfdd6d56d8d3d5d93ed1f5db8512a3121ee all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 46cd6264b507907462a9bc57691e3c054d5011db59f850a4cc7de0d394cfe468 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN KASAN], they are not needed testing commit c02d24a5af66a9806922391493205a344749f2c4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6a57037f609bb9512887811697db830115018fc383b3f250c45f8af7a40b9d0c all runs: OK false negative chance: 0.000 minimized to 422 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CDNSP_HOST USB_CDNSP_PCI USB_CDNS_HOST USB_CDNS_SUPPORT USB_CHAOSKEY USB_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_MSM USB_CHIPIDEA_NPCM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 USB_EMI62 USB_EPSON2888 USB_EZUSB_FX2 USB_FEW_INIT_RETRIES USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_MIDI2 USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB USB_F_SUBSET USB_F_TCM USB_F_UAC1 USB_F_UAC1_LEGACY USB_F_UAC2 USB_F_UVC USB_GADGET USB_GADGETFS USB_GADGET_DEBUG_FILES USB_GADGET_DEBUG_FS USB_GL860 USB_GOKU USB_GR_UDC USB_GSPCA USB_GSPCA_BENQ USB_GSPCA_CONEX USB_GSPCA_CPIA1 USB_GSPCA_DTCS033 USB_GSPCA_ETOMS USB_GSPCA_FINEPIX USB_GSPCA_JEILINJ USB_GSPCA_JL2005BCD USB_GSPCA_KINECT USB_GSPCA_KONICA USB_GSPCA_MARS USB_GSPCA_MR97310A USB_GSPCA_NW80X USB_GSPCA_OV519 USB_GSPCA_OV534 USB_GSPCA_OV534_9 USB_GSPCA_PAC207 USB_GSPCA_PAC7302 USB_GSPCA_PAC7311 USB_GSPCA_SE401 USB_GSPCA_SN9C2028 USB_GSPCA_SN9C20X USB_GSPCA_SONIXB USB_GSPCA_SONIXJ USB_GSPCA_SPCA1528 USB_GSPCA_SPCA500 USB_GSPCA_SPCA501 USB_GSPCA_SPCA505 USB_GSPCA_SPCA506 USB_GSPCA_SPCA508 USB_GSPCA_SPCA561 USB_GSPCA_SQ905 USB_GSPCA_SQ905C USB_GSPCA_SQ930X USB_GSPCA_STK014 USB_GSPCA_STK1135 USB_GSPCA_STV0680 USB_GSPCA_SUNPLUS USB_GSPCA_T613 USB_GSPCA_TOPRO USB_GSPCA_TOUPTEK USB_GSPCA_TV8532 USB_GSPCA_VC032X USB_GSPCA_VICAM USB_GSPCA_XIRLINK_CIT USB_GSPCA_ZC3XX USB_HACKRF USB_HCD_BCMA USB_HCD_SSB USB_HSIC_USB3503 USB_HSIC_USB4604 USB_HSO USB_HUB_USB251XB USB_IDMOUSE USB_IOWARRIOR USB_IPHETH USB_ISIGHTFW USB_ISP116X_HCD USB_ISP1301 USB_ISP1760 USB_ISP1760_DUAL_ROLE USB_ISP1760_HCD USB_ISP1761_UDC USB_KAWETH USB_KC2190 USB_KEENE USB_LAN78XX USB_LCD USB_LD USB_LEDS_TRIGGER_USBPORT USB_LED_TRIG USB_LEGOTOWER USB_LGM_PHY USB_LIBCOMPOSITE USB_LINK_LAYER_TEST USB_M5602 USB_MA901 USB_MAX3420_UDC USB_MAX3421_HCD USB_MDC800 USB_MICROTEK USB_MR800 USB_MSI2500 USB_MUSB_DUAL_ROLE USB_MUSB_HDRC USB_MV_U3D USB_MV_UDC USB_NET2272 USB_NET2272_DMA USB_NET2280 USB_NET_AQC111 USB_NET_AX88179_178A USB_NET_AX8817X USB_NET_CDCETHER USB_NET_CDC_EEM USB_NET_CDC_MBIM USB_NET_CDC_NCM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_CH9200 USB_NET_CX82310_ETH USB_NET_DM9601 USB_NET_GL620A USB_NET_HUAWEI_CDC_NCM USB_NET_INT51X1 USB_NET_KALMIA USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_QMI_WWAN USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_OXU210HP_HCD USB_PEGASUS USB_PULSE8_CEC USB_PWC USB_PWC_INPUT_EVDEV USB_PXA27X USB_R8A66597 USB_R8A66597_HCD USB_RAINSHADOW_CEC USB_RAREMONO USB_RAW_GADGET USB_RTL8150 USB_RTL8152 USB_RTL8153_ECM USB_S2255 USB_SERIAL USB_SERIAL_AIRCABLE USB_SERIAL_ARK3116 USB_SERIAL_BELKIN USB_SERIAL_CH341 USB_SERIAL_CONSOLE USB_SERIAL_CP210X USB_SERIAL_CYBERJACK USB_SERIAL_CYPRESS_M8 USB_SERIAL_DEBUG USB_SERIAL_DIGI_ACCELEPORT USB_SERIAL_EDGEPORT USB_SERIAL_EDGEPORT_TI USB_SERIAL_EMPEG USB_SERIAL_F81232 USB_SERIAL_F8153X USB_SERIAL_FTDI_SIO USB_SERIAL_GARMIN USB_SERIAL_GENERIC USB_SERIAL_IPAQ USB_SERIAL_IPW USB_SERIAL_IR USB_SERIAL_IUU USB_SERIAL_KEYSPAN USB_SERIAL_KEYSPAN_PDA USB_SERIAL_KLSI USB_SERIAL_KOBIL_SCT USB_SERIAL_MCT_U232 USB_SERIAL_METRO USB_SERIAL_MOS7715_PARPORT USB_SERIAL_MOS7720 USB_SERIAL_MOS7840 USB_SERIAL_MXUPORT USB_SERIAL_NAVMAN USB_SERIAL_OMNINET USB_SERIAL_OPTICON USB_SERIAL_OPTION USB_SERIAL_OTI6858 USB_SERIAL_PL2303 USB_SERIAL_QCAUX USB_SERIAL_QT2 USB_SERIAL_QUALCOMM USB_SERIAL_SAFE USB_SERIAL_SIERRAWIRELESS USB_SERIAL_SIMPLE USB_SERIAL_SPCP8X5 USB_SERIAL_SSU100 USB_SERIAL_SYMBOL USB_SERIAL_TI USB_SERIAL_UPD78F0730 USB_SERIAL_VISOR USB_SERIAL_WHITEHEAT USB_SERIAL_WISHBONE USB_SERIAL_WWAN USB_SERIAL_XR USB_SERIAL_XSENS_MT USB_SEVSEG USB_SI470X USB_SI4713 USB_SIERRA_NET USB_SISUSBVGA USB_SL811_CS USB_SL811_HCD USB_SL811_HCD_ISO USB_SNP_CORE USB_SPEEDTOUCH USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_ENE_UB6250 USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_STV06XX USB_TEST USB_TMC USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEO VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC X86_X32_ABI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA Z3FOLD Z3FOLD_DEPRECATED ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_BACKEND_FORCE_LZO ZRAM_BACKEND_LZO ZRAM_DEF_COMP_LZO ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_842 ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_Z3FOLD_DEPRECATED] disabling configs for [HANG LEAK UBSAN KASAN LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.11 v6.10 v6.9 v6.7 v6.5 v6.3 v6.1 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 34 release tags testing release v6.11 testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03c8d2e7c6665d1bf8d6b4e7718ce12d07d872b70cf2b75cb61162eca65f81b0 all runs: OK false negative chance: 0.000 # git bisect start c02d24a5af66a9806922391493205a344749f2c4 98f7e32f20d28ec452afb208f9cffc08448a2652 Bisecting: 7149 revisions left to test after this (roughly 13 steps) [de848da12f752170c2ebe114804a985314fd5a6a] Merge tag 'drm-next-2024-09-19' of https://gitlab.freedesktop.org/drm/kernel testing commit de848da12f752170c2ebe114804a985314fd5a6a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5de445a4092b7f9432515db65cd339020dd3e17332c147a4f83060a926b3f03c all runs: OK false negative chance: 0.000 # git bisect good de848da12f752170c2ebe114804a985314fd5a6a Bisecting: 3572 revisions left to test after this (roughly 12 steps) [5159938e10d876fd23d3a5474689a9f6e18a446e] Merge tag 'probes-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace testing commit 5159938e10d876fd23d3a5474689a9f6e18a446e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7e0c8b5752e394148437c3b618ec7f2fe76b08b698bc197561c7d3a2ed4b1863 all runs: OK false negative chance: 0.000 # git bisect good 5159938e10d876fd23d3a5474689a9f6e18a446e Bisecting: 1797 revisions left to test after this (roughly 11 steps) [f41cf56a40cb84e4b13a59b6bd4abaf88cd35a41] Merge branch 'mm-everything' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm testing commit f41cf56a40cb84e4b13a59b6bd4abaf88cd35a41 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 588f6542afc9cf781ccfabf4b301bfd5ac61aaa8fe0d96813c7cccd7bb19ee5f all runs: OK false negative chance: 0.000 # git bisect good f41cf56a40cb84e4b13a59b6bd4abaf88cd35a41 Bisecting: 909 revisions left to test after this (roughly 10 steps) [473aee2db0ef5a3cdf3461f318003d7267533c19] Merge branch 'for-linux-next' of https://gitlab.freedesktop.org/drm/misc/kernel.git testing commit 473aee2db0ef5a3cdf3461f318003d7267533c19 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 90e14ebe16400c0bd02902954af81c3259676553121a1190cc5a3ae6bc4f68d1 all runs: OK false negative chance: 0.000 # git bisect good 473aee2db0ef5a3cdf3461f318003d7267533c19 Bisecting: 451 revisions left to test after this (roughly 9 steps) [2cc838c4e78dee4ec6ace57ad1f049beec90389b] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git testing commit 2cc838c4e78dee4ec6ace57ad1f049beec90389b gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f0a3d2ad5409328b0c26ba6e1bc73da09f2e926295c432fababa64aa93ea12f1 all runs: OK false negative chance: 0.000 # git bisect good 2cc838c4e78dee4ec6ace57ad1f049beec90389b Bisecting: 223 revisions left to test after this (roughly 8 steps) [0f0a955f1f8e67f14a8ba7cd92f9f783b14cddc5] Merge branch 'togreg' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git testing commit 0f0a955f1f8e67f14a8ba7cd92f9f783b14cddc5 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a72c240e95a4537390e8865d1a5ca1fb76ee7d58c655ad8f482fb7b9612e88f0 all runs: OK false negative chance: 0.000 # git bisect good 0f0a955f1f8e67f14a8ba7cd92f9f783b14cddc5 Bisecting: 133 revisions left to test after this (roughly 7 steps) [ad088ec98de59a9e92828202b490d8230c323e51] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git testing commit ad088ec98de59a9e92828202b490d8230c323e51 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68d702a8ddcedebeb9dd4afd388f155403d39b69fefdcc1ad9bb19d76a4438c3 all runs: OK false negative chance: 0.000 # git bisect good ad088ec98de59a9e92828202b490d8230c323e51 Bisecting: 66 revisions left to test after this (roughly 6 steps) [0e2807cecb0f8be4c8416e9dcf54b80f106671b8] Merge branch 'ntb-next' of https://github.com/jonmason/ntb.git testing commit 0e2807cecb0f8be4c8416e9dcf54b80f106671b8 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21553861fdb2291ccbfc8314e3b374f49a862caef69e2092eb078c76569163c0 all runs: OK false negative chance: 0.000 # git bisect good 0e2807cecb0f8be4c8416e9dcf54b80f106671b8 Bisecting: 37 revisions left to test after this (roughly 5 steps) [d86c7f3a4c32812c5bac2aa908fff6661201932e] Merge branch 'slab/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git testing commit d86c7f3a4c32812c5bac2aa908fff6661201932e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9e8f386cb4e6ddee037a3e7d4d146ed10f18b3e7a6eccd6d4498a2e4b4921799 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] # git bisect bad d86c7f3a4c32812c5bac2aa908fff6661201932e Bisecting: 15 revisions left to test after this (roughly 4 steps) [75691a7ee68682e8e8010d8d6dee673908895c0f] Merge branch 'zstd-next' of https://github.com/terrelln/linux.git testing commit 75691a7ee68682e8e8010d8d6dee673908895c0f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91a6ab0422103db73060969ec28dc8451ae686048a809b2148ab976ee3d5c280 run #0: crashed: lost connection to test machine run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: lost connection to test machine, types: [UNKNOWN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 # git bisect skip 75691a7ee68682e8e8010d8d6dee673908895c0f Bisecting: 15 revisions left to test after this (roughly 4 steps) [6f15724a4f385f8381f15470bb25035c3380a275] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/fsi.git testing commit 6f15724a4f385f8381f15470bb25035c3380a275 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4a7c4f219935fd57bf3a469badec5134ce700ec1c78e7605e10c35500b9d9d33 all runs: OK false negative chance: 0.000 # git bisect good 6f15724a4f385f8381f15470bb25035c3380a275 Bisecting: 12 revisions left to test after this (roughly 4 steps) [8bcb4e9205c83633c76f57e03307b9f3f26bb33a] Merge branch 'slab/for-6.13/features' into slab/for-next testing commit 8bcb4e9205c83633c76f57e03307b9f3f26bb33a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d387d153fe344f49d619ba25d9212faf06cb6b1076efc01d07480c75c3856158 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] # git bisect bad 8bcb4e9205c83633c76f57e03307b9f3f26bb33a Bisecting: 6 revisions left to test after this (roughly 3 steps) [52aa2296a968f2513c56f20e9f97b85771f2573c] mm/slub, kunit: Add testcase for krealloc redzone and zeroing testing commit 52aa2296a968f2513c56f20e9f97b85771f2573c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 2881dd1a8f0c8d2e42e1e16d3aeb3d9e16287fbbe35f4c46ccefa4f6c56b7184 all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] # git bisect bad 52aa2296a968f2513c56f20e9f97b85771f2573c Bisecting: 2 revisions left to test after this (roughly 1 step) [b0c543648f3bd67ce1d845991a57f232bd248f09] mm/slub: Consider kfence case for get_orig_size() testing commit b0c543648f3bd67ce1d845991a57f232bd248f09 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 768d8cdfd0e039ce3543c5c6391d87c41d0de9945bd0dbd00b67d1f2b01d548c all runs: OK false negative chance: 0.000 # git bisect good b0c543648f3bd67ce1d845991a57f232bd248f09 Bisecting: 0 revisions left to test after this (roughly 1 step) [d0a38fad51cc70ab3dd3c59b54d8079ac19220b9] mm/slub: Improve redzone check and zeroing for krealloc() testing commit d0a38fad51cc70ab3dd3c59b54d8079ac19220b9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24e82a9a584eb7b340882bb9fc3a312952299f933589b65906b867deff22778b all runs: crashed: WARNING in acquire_reference_state representative crash: WARNING in acquire_reference_state, types: [WARNING] # git bisect bad d0a38fad51cc70ab3dd3c59b54d8079ac19220b9 Bisecting: 0 revisions left to test after this (roughly 0 steps) [f97ac9f57ebbe7b89e256fbc3d8963587f4503aa] mm/slub: Move krealloc() and related code to slub.c testing commit f97ac9f57ebbe7b89e256fbc3d8963587f4503aa gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3cfcb77cc2660430643b84573ef177e0a3e9810477e42d3292a2e5b6ac4082e6 all runs: OK false negative chance: 0.000 # git bisect good f97ac9f57ebbe7b89e256fbc3d8963587f4503aa d0a38fad51cc70ab3dd3c59b54d8079ac19220b9 is the first bad commit commit d0a38fad51cc70ab3dd3c59b54d8079ac19220b9 Author: Feng Tang Date: Wed Sep 11 14:45:34 2024 +0800 mm/slub: Improve redzone check and zeroing for krealloc() For current krealloc(), one problem is its caller doesn't pass the old request size, say the object is 64 bytes kmalloc one, but caller may only requested 48 bytes. Then when krealloc() shrinks or grows in the same object, or allocate a new bigger object, it lacks this 'original size' information to do accurate data preserving or zeroing (when __GFP_ZERO is set). Thus with slub debug redzone and object tracking enabled, parts of the object after krealloc() might contain redzone data instead of zeroes, which is violating the __GFP_ZERO guarantees. Good thing is in this case, kmalloc caches do have this 'orig_size' feature. So solve the problem by utilize 'org_size' to do accurate data zeroing and preserving. Suggested-by: Vlastimil Babka Signed-off-by: Feng Tang Signed-off-by: Vlastimil Babka mm/slub.c | 54 ++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 38 insertions(+), 16 deletions(-) accumulated error probability: 0.00 culprit signature: 24e82a9a584eb7b340882bb9fc3a312952299f933589b65906b867deff22778b parent signature: 3cfcb77cc2660430643b84573ef177e0a3e9810477e42d3292a2e5b6ac4082e6 revisions tested: 24, total time: 6h11m26.902108533s (build: 3h5m37.52584073s, test: 2h50m16.357763469s) first bad commit: d0a38fad51cc70ab3dd3c59b54d8079ac19220b9 mm/slub: Improve redzone check and zeroing for krealloc() recipients (to): ["akpm@linux-foundation.org" "cl@linux.com" "feng.tang@intel.com" "iamjoonsoo.kim@lge.com" "linux-mm@kvack.org" "penberg@kernel.org" "rientjes@google.com" "vbabka@suse.cz" "vbabka@suse.cz"] recipients (cc): ["42.hyeyoo@gmail.com" "linux-kernel@vger.kernel.org" "roman.gushchin@linux.dev"] crash: WARNING in acquire_reference_state ------------[ cut here ]------------ virt_to_cache: Object is not a Slab page! WARNING: CPU: 0 PID: 3343 at mm/slub.c:4630 virt_to_cache mm/slub.c:4630 [inline] WARNING: CPU: 0 PID: 3343 at mm/slub.c:4630 __do_krealloc mm/slub.c:4728 [inline] WARNING: CPU: 0 PID: 3343 at mm/slub.c:4630 krealloc_noprof+0xb1/0x290 mm/slub.c:4813 Modules linked in: CPU: 0 UID: 0 PID: 3343 Comm: syz.0.15 Not tainted 6.12.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:virt_to_cache mm/slub.c:4630 [inline] RIP: 0010:__do_krealloc mm/slub.c:4728 [inline] RIP: 0010:krealloc_noprof+0xb1/0x290 mm/slub.c:4813 Code: 00 00 00 45 31 e4 45 31 ff 45 31 ed eb 38 c6 05 a3 22 14 02 01 90 48 c7 c7 e3 24 f5 82 48 c7 c6 03 25 f5 82 e8 90 ba d1 ff 90 <0f> 0b 90 90 48 85 db 75 c0 45 31 ed 0f 1f 44 00 00 49 8d 45 1c 44 RSP: 0018:ffffc900059c78b0 EFLAGS: 00010246 RAX: 3cfcd3f983ef0300 RBX: 0000000000000000 RCX: 0000000000000002 RDX: 0000000000000002 RSI: ffffffff8308cae6 RDI: 00000000ffffffff RBP: ffff88811d008000 R08: 0000000000000000 R09: ffffffff832daac0 R10: ffffc900059c7790 R11: ffffc900059c7738 R12: 00000000000002ac R13: ffff88811d008000 R14: 0000000000004000 R15: 00000000000002ac FS: 00007fba10c396c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba10c38f98 CR3: 0000000113342000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: realloc_array kernel/bpf/verifier.c:1247 [inline] resize_reference_state kernel/bpf/verifier.c:1287 [inline] acquire_reference_state+0x74/0x130 kernel/bpf/verifier.c:1334 check_helper_call+0x1ca5/0x1e60 kernel/bpf/verifier.c:10897 do_check+0x2459/0x2e70 kernel/bpf/verifier.c:18524 do_check_common+0x38c/0x7f0 kernel/bpf/verifier.c:21613 do_check_main kernel/bpf/verifier.c:21704 [inline] bpf_check+0x11f0/0x5670 kernel/bpf/verifier.c:22416 bpf_prog_load+0x654/0x700 kernel/bpf/syscall.c:2846 __sys_bpf+0x351/0x5a0 kernel/bpf/syscall.c:5634 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x17/0x20 kernel/bpf/syscall.c:5739 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xe0/0x220 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fba111bdff9 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:00007fba10c39038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fba11375f80 RCX: 00007fba111bdff9 RDX: 0000000000000090 RSI: 0000000020000840 RDI: 0000000000000005 RBP: 00007fba11230296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fba11375f80 R15: 00007ffcd6fd1c98