ci2 starts bisection 2025-11-27 07:50:50.990137653 +0000 UTC m=+66063.167260731 bisecting fixing commit since 43bb85222e53926decace01ce6584ca88e09a0a9 building syzkaller on d291dd2d58a1885c00a60561048b6ceb1bf1206a ensuring issue is reproducible on original commit 43bb85222e53926decace01ce6584ca88e09a0a9 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77f570036dbcf1d0e56269638807a89d0731deccdf2c465ee6119f1e88fb0f83 run #0: crashed: possible deadlock in __hrtimer_run_queues run #1: crashed: WARNING in syz run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: possible deadlock in console_unlock run #5: crashed: WARNING in syz run #6: crashed: WARNING in hrtimer_start_range_ns run #7: crashed: WARNING in hrtimer_start_range_ns run #8: crashed: WARNING in syz run #9: crashed: WARNING in bpf_probe_read_user run #10: crashed: WARNING in bpf_probe_read_user run #11: crashed: WARNING in bpf_probe_read_user run #12: crashed: WARNING in bpf_probe_read_user run #13: crashed: possible deadlock in console_unlock run #14: crashed: WARNING in hrtimer_start_range_ns run #15: crashed: possible deadlock in console_unlock run #16: crashed: possible deadlock in console_unlock run #17: crashed: WARNING in bpf_probe_read_user run #18: crashed: WARNING in syz run #19: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in syz, types: [WARNING] check whether we can drop unnecessary instrumentation disabling configs for [ubsan kasan locking atomic_sleep hang memleak], they are not needed testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 18c74dbc58243a3caf34110e724528ee07a64733de3dfb4bccd0872aae62af2a all runs: OK false negative chance: 0.000 kconfig minimization: base=3707 full=7423 leaves diff=2100 split chunks (needed=false): <2100> split chunk #0 of len 2100 into 5 parts testing without sub-chunk 1/5 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 554fb896e922236b30fd9553900775cef21093fb9d339c90ec8faa2a2f979bb5 run #0: crashed: possible deadlock in console_unlock run #1: crashed: possible deadlock in __hrtimer_run_queues run #2: crashed: possible deadlock in console_unlock run #3: crashed: possible deadlock in __hrtimer_run_queues run #4: crashed: possible deadlock in console_unlock run #5: crashed: possible deadlock in console_unlock run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: possible deadlock in console_unlock run #8: crashed: possible deadlock in console_unlock run #9: crashed: WARNING in hrtimer_start_range_ns representative crash: possible deadlock in console_unlock, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a4cc33b72ee08037badb140e556d725ba65ea60a898aa1afcf2f0d310b3e4cf8 all runs: crashed: WARNING in bpf_probe_read_user representative crash: WARNING in bpf_probe_read_user, types: [WARNING] the chunk can be dropped testing without sub-chunk 3/5 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91066781be9134a74b4b4bc8d6be5c3e1408acd52967453419f91d55c037651a run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] the chunk can be dropped testing without sub-chunk 4/5 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a1c9ec777645311206b20c974a9ba7adfe654c9d10ba7cd094508cf5f23174e8 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: WARNING in bpf_probe_read_user run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] the chunk can be dropped testing without sub-chunk 5/5 testing commit 43bb85222e53926decace01ce6584ca88e09a0a9 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 03e5744aff8098478baf3924ef54b23d3318271239195db6780b6d24955eafff all runs: OK false negative chance: 0.000 minimized to 420 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB FRONTSWAP GPIOLIB HID_ZEROPLUS I2C_MUX IIO IRQ_REMAP 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_HOTPLUG_SPARSE 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_CHIPIDEA USB_CHIPIDEA_GENERIC USB_CHIPIDEA_HOST USB_CHIPIDEA_IMX USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_TEGRA 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_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_FOTG210_HCD USB_FOTG210_UDC USB_FTDI_ELAN USB_F_ACM USB_F_ECM USB_F_EEM USB_F_FS USB_F_HID USB_F_MASS_STORAGE USB_F_MIDI USB_F_NCM USB_F_OBEX USB_F_PHONET USB_F_PRINTER USB_F_RNDIS USB_F_SERIAL USB_F_SS_LB 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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_RNDIS_WLAN 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_STKWEBCAM 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_U132_HCD 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 USB_ZR364XX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VETH VFIO VFIO_IOMMU_TYPE1 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_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOBUF_GEN VIDEOBUF_VMALLOC VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CPIA2 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_STK1160_COMMON VIDEO_TM6000 VIDEO_TM6000_ALSA VIDEO_TM6000_DVB VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2 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 X86_SGX X86_X2APIC XARRAY_MULTI 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 ZBUD ZEROPLUS_FF ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] determining the merge base between 43bb85222e53926decace01ce6584ca88e09a0a9 and 765e56e41a5af2d456ddda6cbd617b9d3295ab4e 8bb7eca972ad531c9b149c0a51ab43a417385813/Linux 5.15 is a merge base, check if it has the bug testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c4d7123c70fc7f9c45c2dd30ca53741cf9ff6bbb10204a745473814a9665ba44 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in corrupted run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] testing current HEAD 765e56e41a5af2d456ddda6cbd617b9d3295ab4e testing commit 765e56e41a5af2d456ddda6cbd617b9d3295ab4e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f258baadc33d788f7d4a9265d032501f1a4962e07763fdb67127ba18dd47b55e all runs: OK false negative chance: 0.000 # git bisect start 765e56e41a5af2d456ddda6cbd617b9d3295ab4e 8bb7eca972ad531c9b149c0a51ab43a417385813 Bisecting: 177475 revisions left to test after this (roughly 18 steps) [5a6a09e97199d6600d31383055f9d43fbbcbe86f] Merge tag 'cgroup-for-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 5a6a09e97199d6600d31383055f9d43fbbcbe86f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1cfd5a943a9d86cc4df6a8fc150894ad3b08dfc5cd515216b362573fc3a468a8 all runs: OK false negative chance: 0.000 # git bisect bad 5a6a09e97199d6600d31383055f9d43fbbcbe86f Bisecting: 88006 revisions left to test after this (roughly 17 steps) [4899a36f91a9f9b06878471096bd143e7253006d] Merge tag 'powerpc-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 4899a36f91a9f9b06878471096bd143e7253006d gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ecbb7ca4f7942c996da50f16c9e45ea88063e9587d9af9b5c604863317dd88ff run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 4899a36f91a9f9b06878471096bd143e7253006d Bisecting: 44193 revisions left to test after this (roughly 16 steps) [b68ee1c6131c540a62ecd443be89c406401df091] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit b68ee1c6131c540a62ecd443be89c406401df091 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 87b2b9bdcfcc515001ccda5f701f53befb1beea24fc2e1dd99477b4691da849c run #0: crashed: inconsistent lock state in valid_state run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: inconsistent lock state in valid_state run #3: crashed: inconsistent lock state in valid_state run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: OK run #7: OK run #8: OK run #9: OK representative crash: inconsistent lock state in valid_state, types: [LOCKDEP WARNING] # git bisect good b68ee1c6131c540a62ecd443be89c406401df091 Bisecting: 22068 revisions left to test after this (roughly 15 steps) [15ac468614e5e4fee82e1eb32568f427b0e51adc] Merge tag 'media/v6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 15ac468614e5e4fee82e1eb32568f427b0e51adc gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 5f290b6cb6977eecadd6c61aec639f729bbf7edb68a4147ad7f008fcdafe0870 all runs: OK false negative chance: 0.000 # git bisect bad 15ac468614e5e4fee82e1eb32568f427b0e51adc Bisecting: 11055 revisions left to test after this (roughly 14 steps) [a0433f8cae3ac51f59b4b1863032822aaa2d8164] Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux determine whether the revision contains the guilty commit revision b68ee1c6131c540a62ecd443be89c406401df091 crashed and is reachable testing commit a0433f8cae3ac51f59b4b1863032822aaa2d8164 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 688822eed7986f5ab75f0a74355c442c231447f20fea0c3fa624c78eb1128bd1 all runs: OK false negative chance: 0.000 # git bisect bad a0433f8cae3ac51f59b4b1863032822aaa2d8164 Bisecting: 5499 revisions left to test after this (roughly 13 steps) [56c455b38dba47ae9cb48d71b2a106d769d1a694] Merge tag 'xfs-6.4-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux determine whether the revision contains the guilty commit revision b68ee1c6131c540a62ecd443be89c406401df091 crashed and is reachable testing commit 56c455b38dba47ae9cb48d71b2a106d769d1a694 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e0b7930abc5ae75177ecf8e1008c808947722c7832e594b16cd0fa4233559140 all runs: OK false negative chance: 0.000 # git bisect bad 56c455b38dba47ae9cb48d71b2a106d769d1a694 Bisecting: 2472 revisions left to test after this (roughly 12 steps) [1c15ca4e4efaddb78f83eed31eeee34c522c3ae2] Merge tag 'sound-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 1c15ca4e4efaddb78f83eed31eeee34c522c3ae2 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: de4cafca37e6103a357c5d178eaeb6a59418ecb6dd952a847eabfebed4b30b02 all runs: OK false negative chance: 0.000 # git bisect bad 1c15ca4e4efaddb78f83eed31eeee34c522c3ae2 Bisecting: 1548 revisions left to test after this (roughly 11 steps) [7a486c443c89bd949f7a64e0040f704e02710b3c] mptcp: drop unneeded argument determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 7a486c443c89bd949f7a64e0040f704e02710b3c gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f396bacb82d29caaf45205c433acde1a68f91dd58e6845f6624620d4723ac917 all runs: OK false negative chance: 0.000 # git bisect bad 7a486c443c89bd949f7a64e0040f704e02710b3c Bisecting: 773 revisions left to test after this (roughly 10 steps) [b8617f8eed84e12c26f2220733280187466a0615] selftests: tc-testing: add tunnel_key "nofrag" test case determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit b8617f8eed84e12c26f2220733280187466a0615 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 18a5fd226b5a2ca0dbc22bd60663481e125844864d3e3422f4a109df3a0443f9 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good b8617f8eed84e12c26f2220733280187466a0615 Bisecting: 386 revisions left to test after this (roughly 9 steps) [977c4a3e7c89d5b48fdc548773fb9ed3e6c50cf8] net/mlx5: Add new WQE for updating flow table determine whether the revision contains the guilty commit revision b8617f8eed84e12c26f2220733280187466a0615 crashed and is reachable testing commit 977c4a3e7c89d5b48fdc548773fb9ed3e6c50cf8 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 7481ad8b418de26ec6a9be8899db1a25499da438bf6fdc5d449ee10a83215d41 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: inconsistent lock state in valid_state run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 977c4a3e7c89d5b48fdc548773fb9ed3e6c50cf8 Bisecting: 193 revisions left to test after this (roughly 8 steps) [9af0f555ae4add25f0950753fb410c509aa71f50] selftests/bpf: Fix conflicts with built-in functions in bench_local_storage_create determine whether the revision contains the guilty commit revision 4899a36f91a9f9b06878471096bd143e7253006d crashed and is reachable testing commit 9af0f555ae4add25f0950753fb410c509aa71f50 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ab929a50eb4737a4d0ce828877faa7a1415abcc5dc8499bc7ae1f5e96812cb5f run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: crashed: inconsistent lock state in valid_state run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 9af0f555ae4add25f0950753fb410c509aa71f50 Bisecting: 97 revisions left to test after this (roughly 7 steps) [8c5c2a4898e3d6bad86e29d471e023c8a19ba799] bpf, sockmap: Revert buggy deadlock fix in the sockhash and sockmap determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 8c5c2a4898e3d6bad86e29d471e023c8a19ba799 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ea6492f6f6106b7c1be1b551b99874420cf0833f1d612ed2c906b701b81277e2 all runs: OK false negative chance: 0.000 # git bisect bad 8c5c2a4898e3d6bad86e29d471e023c8a19ba799 Bisecting: 47 revisions left to test after this (roughly 6 steps) [4daf0b327f2032ecacd2fb00c46999619f530972] Merge branch 'bpf: Improve verifier for cond_op and spilled loop index variables' determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit 4daf0b327f2032ecacd2fb00c46999619f530972 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 3b8049c9ff685960713a75d866980de8ad0dbc8c3228efb05bb874e1e646af10 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good 4daf0b327f2032ecacd2fb00c46999619f530972 Bisecting: 23 revisions left to test after this (roughly 5 steps) [be983f44274f575e42025130e3c62b8718b0a29a] selftests/bpf: Add testing of log_buf==NULL condition for BPF_PROG_LOAD determine whether the revision contains the guilty commit revision 8bb7eca972ad531c9b149c0a51ab43a417385813 crashed and is reachable testing commit be983f44274f575e42025130e3c62b8718b0a29a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 515da8cecc1fe86e95a5699ffc737667985da76ff245b69f1a9704168e03b572 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: WARNING in bpf_probe_read_user run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: inconsistent lock state in valid_state run #6: crashed: WARNING in bpf_probe_read_user run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING] # git bisect good be983f44274f575e42025130e3c62b8718b0a29a Bisecting: 11 revisions left to test after this (roughly 4 steps) [d9688f898c08c8f96fb0e7879262877ffd319bfd] selftests/bpf: Test FOU kfuncs for externally controlled ipip devices determine whether the revision contains the guilty commit revision 9af0f555ae4add25f0950753fb410c509aa71f50 crashed and is reachable testing commit d9688f898c08c8f96fb0e7879262877ffd319bfd gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f0f8f5fb687435bb958fdd49cefb7b70ec72254ed84f3fa646026826747dbf1a run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: inconsistent lock state in valid_state run #2: crashed: WARNING in bpf_probe_read_user run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: inconsistent lock state in valid_state run #5: crashed: WARNING in bpf_probe_read_user run #6: OK run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING LOCKDEP] # git bisect good d9688f898c08c8f96fb0e7879262877ffd319bfd Bisecting: 5 revisions left to test after this (roughly 3 steps) [2995f9a8d427b9ff6f3cf4e85c0f9d4456ef324d] selftests/bpf: Keep the loop in bpf_testmod_loop_test determine whether the revision contains the guilty commit revision 9af0f555ae4add25f0950753fb410c509aa71f50 crashed and is reachable testing commit 2995f9a8d427b9ff6f3cf4e85c0f9d4456ef324d gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 3a12f12a5498fc49060a6ef3f127546a92b2d0c7286b4fe5ba4bfa4253ccafc5 all runs: OK false negative chance: 0.000 # git bisect bad 2995f9a8d427b9ff6f3cf4e85c0f9d4456ef324d Bisecting: 2 revisions left to test after this (roughly 2 steps) [5a674611d116a5fc28c5429beea2b78c6e2933ef] selftests/bpf: Fix use of uninitialized op_name in log tests determine whether the revision contains the guilty commit revision d9688f898c08c8f96fb0e7879262877ffd319bfd crashed and is reachable testing commit 5a674611d116a5fc28c5429beea2b78c6e2933ef gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ec7eb6cdcff389a4bfa96a67691a2cc27d6394ca92a7fd7a7a9b459914f3fcd9 all runs: OK false negative chance: 0.000 # git bisect bad 5a674611d116a5fc28c5429beea2b78c6e2933ef Bisecting: 0 revisions left to test after this (roughly 1 step) [d319f344561de23e810515d109c7278919bff7b0] mm: Fix copy_from_user_nofault(). determine whether the revision contains the guilty commit revision 9af0f555ae4add25f0950753fb410c509aa71f50 crashed and is reachable testing commit d319f344561de23e810515d109c7278919bff7b0 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: c25ef9b61da16a13985968aa399070104f3abfd5cbebf539827dfcb2d70be550 all runs: OK false negative chance: 0.000 # git bisect bad d319f344561de23e810515d109c7278919bff7b0 Bisecting: 0 revisions left to test after this (roughly 0 steps) [bbc73e6855b80144cd43d165696f1ff56d6192c9] Merge branch 'Add FOU support for externally controlled ipip devices' determine whether the revision contains the guilty commit revision 4daf0b327f2032ecacd2fb00c46999619f530972 crashed and is reachable testing commit bbc73e6855b80144cd43d165696f1ff56d6192c9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 8595ad5c9e2f14b443620e98e01cc6f0fe7cf34169c37e37124d65341552d912 run #0: crashed: WARNING in bpf_probe_read_user run #1: crashed: inconsistent lock state in valid_state run #2: crashed: inconsistent lock state in valid_state run #3: crashed: WARNING in bpf_probe_read_user run #4: crashed: WARNING in bpf_probe_read_user run #5: crashed: WARNING in bpf_probe_read_user run #6: crashed: WARNING in bpf_probe_read_user run #7: OK run #8: OK run #9: OK representative crash: WARNING in bpf_probe_read_user, types: [WARNING LOCKDEP] # git bisect good bbc73e6855b80144cd43d165696f1ff56d6192c9 d319f344561de23e810515d109c7278919bff7b0 is the first bad commit commit d319f344561de23e810515d109c7278919bff7b0 Author: Alexei Starovoitov Date: Mon Apr 10 19:43:44 2023 +0200 mm: Fix copy_from_user_nofault(). There are several issues with copy_from_user_nofault(): - access_ok() is designed for user context only and for that reason it has WARN_ON_IN_IRQ() which triggers when bpf, kprobe, eprobe and perf on ppc are calling it from irq. - it's missing nmi_uaccess_okay() which is a nop on all architectures except x86 where it's required. The comment in arch/x86/mm/tlb.c explains the details why it's necessary. Calling copy_from_user_nofault() from bpf, [ke]probe without this check is not safe. - __copy_from_user_inatomic() under CONFIG_HARDENED_USERCOPY is calling check_object_size()->__check_object_size()->check_heap_object()->find_vmap_area()->spin_lock() which is not safe to do from bpf, [ke]probe and perf due to potential deadlock. Fix all three issues. At the end the copy_from_user_nofault() becomes equivalent to copy_from_user_nmi() from safety point of view with a difference in the return value. Reported-by: Hsin-Wei Hung Signed-off-by: Alexei Starovoitov Signed-off-by: Florian Lehner Tested-by: Hsin-Wei Hung Tested-by: Florian Lehner Link: https://lore.kernel.org/r/20230410174345.4376-2-dev@der-flo.net Signed-off-by: Alexei Starovoitov mm/maccess.c | 16 +++++++++++----- mm/usercopy.c | 2 +- 2 files changed, 12 insertions(+), 6 deletions(-) accumulated error probability: 0.00 culprit signature: c25ef9b61da16a13985968aa399070104f3abfd5cbebf539827dfcb2d70be550 parent signature: 8595ad5c9e2f14b443620e98e01cc6f0fe7cf34169c37e37124d65341552d912 revisions tested: 28, total time: 8h3m20.229651263s (build: 2h23m47.813728684s, test: 5h23m7.125842977s) first good commit: d319f344561de23e810515d109c7278919bff7b0 mm: Fix copy_from_user_nofault(). recipients (to): ["ast@kernel.org" "dev@der-flo.net" "hsinweih@uci.edu"] recipients (cc): []