ci2 starts bisection 2024-06-10 13:57:55.681280556 +0000 UTC m=+113.900708947 bisecting fixing commit since 977b1ef51866aa7170409af80740788d4f9c4841 building syzkaller on af24b0505c748561efb50f1d03c824d6642f6c0b ensuring issue is reproducible on original commit 977b1ef51866aa7170409af80740788d4f9c4841 testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bc266139b86b9727a45a8f4774a97eab7a14ece986b1b2d3e03b8bfe05beb00a all runs: crashed: KASAN: slab-use-after-free Read in hugetlb_fault representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7925b039f9ab0e004f95e388dbdaedd125123a0bec642b80c9da6b1e41fd0464 all runs: crashed: KASAN: slab-use-after-free Read in hugetlb_fault representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed kconfig minimization: base=3971 full=7998 leaves diff=2011 split chunks (needed=false): <2011> split chunk #0 of len 2011 into 5 parts testing without sub-chunk 1/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 532b1950dcd3654a11ef8624a897c705bfe2ab988085b3fe9ca252a21ab8330b run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #9: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7ae8125d69865e3bc1a01b93058f06a4aa67faba01496626572bc6a2f2300538 all runs: crashed: KASAN: slab-use-after-free Read in hugetlb_fault representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ec922ddfbe92525b7b3de256b7b17d1dc097e5c180a791397fa26ce88ad2b02f run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 201d46b29406fa4523e472899fcbe30bd9c0c80645de8ab0bbdd158e542a7595 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 977b1ef51866aa7170409af80740788d4f9c4841 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29320ed41590a8a68eb13a1df46b1f03edc1b1e61e6de787c6f79d391762aff2 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] minimized to 802 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_ZSTD DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON FB GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS I2C_MUX IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IOMMUFD IP_SCTP IRQ_REMAP KVM KVM_INTEL L2TP LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_COMMON_OPTIONS 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_DLN2 MFD_RETU MFD_VIPERBOARD MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_SOCKET_IPV6 NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_POOL PAGE_REPORTING PAHOLE_HAS_BTF_TAG PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHONET PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PM_CLK PNFS_BLOCK 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TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_FUSB302 TYPEC_TCPCI TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USBIP_VUDC USBPCWATCHDOG USB_ACM USB_ADUTUX USB_AIRSPY USB_ALI_M5632 USB_AMD5536UDC USB_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_ATM 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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_ROLE_SWITCH 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_REALTEK 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_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 VDPA_USER 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 VXLAN WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_PURELIFI 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 XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZONE_DEVICE ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_SHRINKER_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZSMALLOC] disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing current HEAD 83a7eefedc9b56fe7bfeff13b6c7356688ffa670 testing commit 83a7eefedc9b56fe7bfeff13b6c7356688ffa670 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28a122b57cbff0f33abb9d166186b6f8726c66b0aff5e5b39f767f41a261cbf5 all runs: OK false negative chance: 0.000 # git bisect start 83a7eefedc9b56fe7bfeff13b6c7356688ffa670 977b1ef51866aa7170409af80740788d4f9c4841 Bisecting: 6414 revisions left to test after this (roughly 13 steps) [db5d28c0bfe566908719bec8e25443aabecbb802] Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit db5d28c0bfe566908719bec8e25443aabecbb802 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3d34019fe6a96fd9aa03a84a43d0aa59508494d2ae6c1bdd865c8cf80a1e1586 all runs: OK false negative chance: 0.000 # git bisect bad db5d28c0bfe566908719bec8e25443aabecbb802 Bisecting: 3814 revisions left to test after this (roughly 12 steps) [6fffab6676853d52cfdbb030365354252a66a20a] Merge tag 'dlm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit 6fffab6676853d52cfdbb030365354252a66a20a gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: bb52fcbb6a94494f4349482299d4dde59750f6c1eaa1aa5268f133764896dab7 all runs: OK false negative chance: 0.000 # git bisect bad 6fffab6676853d52cfdbb030365354252a66a20a Bisecting: 1911 revisions left to test after this (roughly 11 steps) [cd97950cbcabe662cd8a9fd0a08a247c1ea1fb28] Merge tag 'slab-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit cd97950cbcabe662cd8a9fd0a08a247c1ea1fb28 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5c41765fa7870d18c4865899b44ffa475614e3fbcdf3a67b0b6bc748393b2e9c all runs: OK false negative chance: 0.000 # git bisect bad cd97950cbcabe662cd8a9fd0a08a247c1ea1fb28 Bisecting: 966 revisions left to test after this (roughly 10 steps) [a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6] Linux 6.9 determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6173db632138879168c2b7086fbdeec33e2a8b9abb840318de93a8cd4c77e198 all runs: OK false negative chance: 0.000 # git bisect bad a38297e3fb012ddfa7ce0321a7e5a8daeb1872b6 Bisecting: 471 revisions left to test after this (roughly 9 steps) [e5c8fc5955608cc3561a1ac949e3a39479f24394] Merge tag 'pinctrl-v6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit e5c8fc5955608cc3561a1ac949e3a39479f24394 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8c3dd4ef308e0839f7011425193f59a8b1a9ce5fc772ec826e4635b7088f6657 all runs: OK false negative chance: 0.000 # git bisect bad e5c8fc5955608cc3561a1ac949e3a39479f24394 Bisecting: 248 revisions left to test after this (roughly 8 steps) [c942a0cd3603e34dd2d7237e064d9318cb7f9654] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit c942a0cd3603e34dd2d7237e064d9318cb7f9654 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 47d8bf74313727a445e2087fdd19b592c123052ae3f03b807d82dbb2080cfea8 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #9: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #10: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good c942a0cd3603e34dd2d7237e064d9318cb7f9654 Bisecting: 111 revisions left to test after this (roughly 7 steps) [5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02] Merge tag 'soc-fixes-6.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc determine whether the revision contains the guilty commit revision c942a0cd3603e34dd2d7237e064d9318cb7f9654 crashed and is reachable testing commit 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 42295cbeeb59bc3238bb58971a7433243af3edbbcee792929043fca707f6f7ba all runs: OK false negative chance: 0.000 # git bisect bad 5eb4573ea63d0c83bf58fb7c243fc2c2b6966c02 Bisecting: 69 revisions left to test after this (roughly 6 steps) [4630932a55298befbad62f2563f57bee16e0e450] Merge tag 'mmc-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc determine whether the revision contains the guilty commit revision 977b1ef51866aa7170409af80740788d4f9c4841 crashed and is reachable testing commit 4630932a55298befbad62f2563f57bee16e0e450 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea11101e4d892bb14454df5b9d87120ffb4c36bbab2e66bcc48b0190ce9e4a87 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #9: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #10: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good 4630932a55298befbad62f2563f57bee16e0e450 Bisecting: 40 revisions left to test after this (roughly 5 steps) [fdabd4b2fb36466190d2b7e15e04d4242181b6f3] Merge tag 'at91-fixes-6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into for-next determine whether the revision contains the guilty commit checking the merge base 0bbac3facb5d6cc0171c45c9873a2dc96bea9680 no existing result, test the revision testing commit 0bbac3facb5d6cc0171c45c9873a2dc96bea9680 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 04afe100fea30780b1228fe5fa56c039b63e87feaf5384a7edb6a6d4276efd5c run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] testing commit fdabd4b2fb36466190d2b7e15e04d4242181b6f3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d0e50161df71e7667ef061a6cba7f4ccab10465fcd8306ef54b4d345202c09bf run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #9: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good fdabd4b2fb36466190d2b7e15e04d4242181b6f3 Bisecting: 20 revisions left to test after this (roughly 4 steps) [9e0794aeacb6b1a79c70efff2ecbf13e2162c779] Merge tag 'mtk-dts64-fixes-for-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into for-next determine whether the revision contains the guilty commit revision fdabd4b2fb36466190d2b7e15e04d4242181b6f3 crashed and is reachable testing commit 9e0794aeacb6b1a79c70efff2ecbf13e2162c779 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 1e5e27f1a91b838dfc66c10337810a6743401fd0eaefcf101589e1250104f314 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #9: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #10: OK run #11: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good 9e0794aeacb6b1a79c70efff2ecbf13e2162c779 Bisecting: 10 revisions left to test after this (roughly 3 steps) [ed74abcd1da0244c3c3be865587dc2727148ee83] selftests: mm: protection_keys: save/restore nr_hugepages value from launch script determine whether the revision contains the guilty commit revision 0bbac3facb5d6cc0171c45c9873a2dc96bea9680 crashed and is reachable testing commit ed74abcd1da0244c3c3be865587dc2727148ee83 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e7ccdb1adb6c1b3e0e059d2704df90ba86d3f2ebf50f3d1eaf1cb6c9eeb4bd97 all runs: OK false negative chance: 0.000 # git bisect bad ed74abcd1da0244c3c3be865587dc2727148ee83 Bisecting: 4 revisions left to test after this (roughly 2 steps) [fd1a745ce03e37945674c14833870a9af0882e2d] mm: support page_mapcount() on page_has_type() pages determine whether the revision contains the guilty commit revision 0bbac3facb5d6cc0171c45c9873a2dc96bea9680 crashed and is reachable testing commit fd1a745ce03e37945674c14833870a9af0882e2d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eb546fbaf7f6325e8ef24bfc9dcc8a6fa0a70ae045414995cfd08824432dfe91 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: OK run #9: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good fd1a745ce03e37945674c14833870a9af0882e2d Bisecting: 2 revisions left to test after this (roughly 1 step) [682886ec69d22363819a83ddddd5d66cb5c791e1] mm: zswap: fix shrinker NULL crash with cgroup_disable=memory determine whether the revision contains the guilty commit revision 0bbac3facb5d6cc0171c45c9873a2dc96bea9680 crashed and is reachable testing commit 682886ec69d22363819a83ddddd5d66cb5c791e1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a3706386e42bb8277cf3cd5292c4549cfc470d1ac175f00fc28277cf79316822 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #1: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #2: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #3: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #4: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #5: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #6: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #7: crashed: KASAN: slab-use-after-free Read in hugetlb_fault run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good 682886ec69d22363819a83ddddd5d66cb5c791e1 Bisecting: 0 revisions left to test after this (roughly 1 step) [6fe60465e1d53ea321ee909be26d97529e8f746c] stackdepot: respect __GFP_NOLOCKDEP allocation flag determine whether the revision contains the guilty commit revision 682886ec69d22363819a83ddddd5d66cb5c791e1 crashed and is reachable testing commit 6fe60465e1d53ea321ee909be26d97529e8f746c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0b4a86f29175b5bc425488daf189366d83794a8a42a592a913d6f0350f8b7b85 run #0: crashed: KASAN: slab-use-after-free Read in hugetlb_fault 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 run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: KASAN: slab-use-after-free Read in hugetlb_fault, types: [KASAN] # git bisect good 6fe60465e1d53ea321ee909be26d97529e8f746c ed74abcd1da0244c3c3be865587dc2727148ee83 is the first bad commit commit ed74abcd1da0244c3c3be865587dc2727148ee83 Author: Muhammad Usama Anjum Date: Fri Apr 19 16:50:27 2024 +0500 selftests: mm: protection_keys: save/restore nr_hugepages value from launch script The save/restore of nr_hugepages was added to the test itself by using the atexit() functionality. But it is broken as parent exits after creating child. Hence calling the atexit() function early. That's not it. The child exits after creating its child and so on. The parent cannot wait to get the termination status for its children as it'll keep on holding the resources until the new pkey allocation fails. It is impossible to wait for exits of all the grand and great grand children. Hence the restoring of nr_hugepages value from parent is wrong. Let's save/restore the nr_hugepages settings in the launch script instead of doing it in the test. Link: https://lkml.kernel.org/r/20240419115027.3848958-1-usama.anjum@collabora.com Fixes: c52eb6db7b7d ("selftests: mm: restore settings from only parent process") Signed-off-by: Muhammad Usama Anjum Reported-by: Joey Gouly Closes: https://lore.kernel.org/all/20240418125250.GA2941398@e124191.cambridge.arm.com Cc: Joey Gouly Cc: Shuah Khan Signed-off-by: Andrew Morton tools/testing/selftests/mm/protection_keys.c | 38 ---------------------------- tools/testing/selftests/mm/run_vmtests.sh | 2 ++ 2 files changed, 2 insertions(+), 38 deletions(-) accumulated error probability: 0.00 culprit signature: e7ccdb1adb6c1b3e0e059d2704df90ba86d3f2ebf50f3d1eaf1cb6c9eeb4bd97 parent signature: 0b4a86f29175b5bc425488daf189366d83794a8a42a592a913d6f0350f8b7b85 reproducer is flaky (0.23 repro chance estimate) revisions tested: 23, total time: 7h3m26.880396067s (build: 2h2m33.70530774s, test: 4h42m29.831131062s) first good commit: ed74abcd1da0244c3c3be865587dc2727148ee83 selftests: mm: protection_keys: save/restore nr_hugepages value from launch script recipients (to): ["akpm@linux-foundation.org" "usama.anjum@collabora.com"] recipients (cc): []