ci2 starts bisection 2024-08-22 10:29:44.74112857 +0000 UTC m=+31081.878695633
bisecting fixing commit since f48aeeaaa64c628519273f6007a745cf55b68d95
building syzkaller on 62df2017e3b1edd786a4c737bd4ccba2b4581d88
ensuring issue is reproducible on original commit f48aeeaaa64c628519273f6007a745cf55b68d95

testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: cf5ba880f8d113b040c37427717443ef389ed09ab59fb8390a1d4471312a0abb
all runs: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: use-after-free Read in reiserfs_readdir_inode, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 76d468334bb502494a7de6c852c152defbd11f69a77f91d85cad3c354b6b064a
run #0: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #1: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #2: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #3: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #4: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #7: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #8: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #9: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: out-of-bounds Read in reiserfs_readdir_inode, 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=3703 full=7272 leaves diff=1986
split chunks (needed=false): <1986>
split chunk #0 of len 1986 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c599fee382b7e64d869e655efa77eb2e1dab9f9730ddfbce5024676dcd648064
run #0: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #1: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #2: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #3: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #4: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #7: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #8: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #9: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: out-of-bounds Read in reiserfs_readdir_inode, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 80744dd44644be48d223a4e6cd73d1277a4135e3787e7b85bdf6e8247d7b886a
run #0: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #1: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #2: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #3: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #4: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #7: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #8: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #9: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
representative crash: KASAN: use-after-free Read in reiserfs_readdir_inode, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 22a211063edf031b00efb4ea7a8042354255cb8298cdde10bec25b0156938067
run #0: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #1: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #2: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #3: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #4: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #7: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #8: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #9: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: use-after-free Read in reiserfs_readdir_inode, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: dd036fa053595787ae60029370ecc65c8e33559dfa0165bf3d858114026084f2
all runs: OK
false negative chance: 0.000
testing without sub-chunk 5/5
disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit f48aeeaaa64c628519273f6007a745cf55b68d95 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 51b452cdd2228b0d12d0279cb424a3a5ab7829b123c0665fc06c17aea6db3108
run #0: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #1: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #2: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #3: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #4: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #7: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #8: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #9: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: use-after-free Read in reiserfs_readdir_inode, types: [KASAN]
the chunk can be dropped
minimized to 398 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ASYMMETRIC_TPM_KEY_SUBTYPE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HID_SENSOR_HUB HID_SMARTJOYPLUS HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN IP_SCTP L2TP LIBCRC32C LIBNVDIMM MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_RETU MMC MTD MTD_UBI NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 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 NOP_USB_XCEIV NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NTFS_FS NTFS_RW 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_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PADATA PAGE_IDLE_FLAG PAGE_REPORTING 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 PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_DYNAMIC PREEMPT_NOTIFIERS PREEMPT_RCU PRISM2_USB PROC_CHILDREN PSI PSTORE PSTORE_842_COMPRESS PSTORE_COMPRESS PSTORE_DEFLATE_COMPRESS PSTORE_DEFLATE_COMPRESS_DEFAULT PSTORE_LZ4HC_COMPRESS PSTORE_LZ4_COMPRESS PSTORE_LZO_COMPRESS PSTORE_ZSTD_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN R8712U RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGULATOR REGULATOR_TWL4030 REISERFS_FS REISERFS_FS_POSIX_ACL REISERFS_FS_SECURITY REISERFS_FS_XATTR REISERFS_PROC_INFO RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS_COMMON SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_LED SND_CTL_VALIDATION SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_HDMI SND_HDA_CODEC_REALTEK SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SUPPORT_OLD_API SND_TIMER SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_CGROUP_DATA SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_DECOMP_SINGLE SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STAGING STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SW_SYNC SYSV68_PARTITION SYSV_FS TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TARGET_CORE TASKS_RCU TASKS_RCU_GENERIC TASKS_TRACE_RCU TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THERMAL_NETLINK THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE 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 TPM_KEY_PARSER TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TRUSTED_KEYS TTPCI_EEPROM TTY_PRINTK 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_AN2720 USB_APPLEDISPLAY USB_ARMLINUX USB_BDC_UDC USB_BELKIN USB_C67X00_HCD USB_CATC USB_CDC_PHONET USB_CHAOSKEY 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_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VIDEO_V4L2 VXLAN WIRELESS WLAN ZONE_DEVICE]
disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed
testing current HEAD fa93fa65db6e232b5f2226dd86c9f066ec6dfd97
testing commit fa93fa65db6e232b5f2226dd86c9f066ec6dfd97 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 2f8a613d2369e6e3d2e7b6fc51bd29185b55564d77c407dfbdcd1acc03063994
run #0: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #1: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #2: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #3: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #4: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #5: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #6: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #7: crashed: KASAN: out-of-bounds Read in reiserfs_readdir_inode
run #8: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
run #9: crashed: KASAN: use-after-free Read in reiserfs_readdir_inode
representative crash: KASAN: use-after-free Read in reiserfs_readdir_inode, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h6m43.725417298s (build: 25m40.835665443s, test: 31m58.321049482s)
crash still not fixed or there were kernel test errors
commit msg: Linux 5.15.165
crash: KASAN: use-after-free Read in reiserfs_readdir_inode
REISERFS (device loop0): using ordered data mode
reiserfs: using flush barriers
REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 hash to sort names
==================================================================
BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline]
BUG: KASAN: use-after-free in test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
BUG: KASAN: use-after-free in test_bit_le include/asm-generic/bitops/le.h:85 [inline]
BUG: KASAN: use-after-free in reiserfs_readdir_inode+0xa13/0x1330 fs/reiserfs/dir.c:147
Read of size 8 at addr ffff88806c18d000 by task syz-executor.0/1935

CPU: 0 PID: 1935 Comm: syz-executor.0 Not tainted 5.15.165-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x41/0x5e lib/dump_stack.c:106
 print_address_description.constprop.0.cold+0x6c/0x309 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report.cold+0x83/0xdf mm/kasan/report.c:451
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 instrument_atomic_read include/linux/instrumented.h:71 [inline]
 test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
 test_bit_le include/asm-generic/bitops/le.h:85 [inline]
 reiserfs_readdir_inode+0xa13/0x1330 fs/reiserfs/dir.c:147
 iterate_dir+0x48a/0x6d0 fs/readdir.c:65
 __do_sys_getdents64 fs/readdir.c:369 [inline]
 __se_sys_getdents64 fs/readdir.c:354 [inline]
 __x64_sys_getdents64+0x122/0x220 fs/readdir.c:354
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4964734959
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f49642b70c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00007f4964853f80 RCX: 00007f4964734959
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f4964790c88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f4964853f80 R15: 00007ffd67e62c58
 </TASK>

The buggy address belongs to the page:
page:ffffea0001b06340 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x6c18d
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001b06388 ffff8880bad3e060 0000000000000000
raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 0, migratetype Movable, gfp_mask 0x1100cca(GFP_HIGHUSER_MOVABLE), pid 1929, ts 50219256653, free_ts 50219927037
 prep_new_page mm/page_alloc.c:2426 [inline]
 get_page_from_freelist+0x12d1/0x2d40 mm/page_alloc.c:4159
 __alloc_pages+0x1b2/0x440 mm/page_alloc.c:5423
 alloc_pages_vma+0xe0/0x650 mm/mempolicy.c:2146
 shmem_alloc_page+0x104/0x1b0 mm/shmem.c:1586
 shmem_alloc_and_acct_page+0xff/0x730 mm/shmem.c:1611
 shmem_getpage_gfp.constprop.0+0x42a/0x1790 mm/shmem.c:1906
 generic_perform_write+0x1d6/0x430 mm/filemap.c:3785
 __generic_file_write_iter+0x2f0/0x560 mm/filemap.c:3912
 generic_file_write_iter+0xb9/0x1c0 mm/filemap.c:3944
 call_write_iter include/linux/fs.h:2172 [inline]
 new_sync_write+0x35d/0x5f0 fs/read_write.c:507
 vfs_write+0x577/0x7e0 fs/read_write.c:594
 ksys_write+0xf4/0x1d0 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1340 [inline]
 free_pcp_prepare+0x379/0x850 mm/page_alloc.c:1391
 free_unref_page_prepare mm/page_alloc.c:3317 [inline]
 free_unref_page_list+0x16f/0xbd0 mm/page_alloc.c:3433
 release_pages+0xb3a/0x1480 mm/swap.c:963
 __pagevec_release+0x59/0xe0 mm/swap.c:983
 pagevec_release include/linux/pagevec.h:81 [inline]
 shmem_undo_range+0x505/0xeb0 mm/shmem.c:964
 shmem_truncate_range mm/shmem.c:1063 [inline]
 shmem_evict_inode+0x313/0xa40 mm/shmem.c:1145
 evict+0x296/0x5d0 fs/inode.c:587
 __dentry_kill+0x315/0x5e0 fs/dcache.c:586
 dentry_kill fs/dcache.c:712 [inline]
 dput+0x34a/0x7e0 fs/dcache.c:893
 do_renameat2+0x4e0/0xa20 fs/namei.c:4987
 __do_sys_rename fs/namei.c:5031 [inline]
 __se_sys_rename fs/namei.c:5029 [inline]
 __x64_sys_rename+0x78/0x90 fs/namei.c:5029
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x33/0x80 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

Memory state around the buggy address:
 ffff88806c18cf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88806c18cf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff88806c18d000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                   ^
 ffff88806c18d080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff88806c18d100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
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