ci starts bisection 2023-12-08 14:09:37.29693954 +0000 UTC m=+95101.402397281 bisecting fixing commit since c192ac7357683f78c2e6d6e75adfcc29deb8c4ae building syzkaller on 668cb1fa42960ece96b7da8d9204e486ba6dcdf6 ensuring issue is reproducible on original commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae testing commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a2e314d901646a978c24d999b0d4433c4cf3f32326645c4618189f97c1aa189 run #0: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #1: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #2: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #3: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #4: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #5: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #6: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #7: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #8: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #9: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #10: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #11: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #12: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #13: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #14: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #15: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #16: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #17: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #18: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #19: OK representative crash: KASAN: stack-out-of-bounds Write in end_buffer_read_sync, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a32c85135b66436d31fd387e702e886a52a3e49cd44212c35addea5bb6b45768 run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #2: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #3: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #4: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #5: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3923 full=7637 leaves diff=2001 split chunks (needed=false): <2001> split chunk #0 of len 2001 into 5 parts testing without sub-chunk 1/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a9b2cadd52eb70757137e723f9c5593cad2dd7a96ce6c1be4d2b3408037bf0d run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #2: crashed: KASAN: stack-out-of-bounds Write in end_buffer_read_sync run #3: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #4: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #5: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #6: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #7: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #8: OK run #9: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, 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 c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 15cf1626711a471744e22cf7ed6b248e04cbcbb74fac6a25d67fbffe449f04da run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #2: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #3: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #4: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #5: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #6: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #7: OK run #8: OK run #9: OK representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d11643815902bf2172b264c60b8cadce32ac5494ccb59347ad41f9cf1d44dcf3 all runs: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing commit c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 89c6eab4d8a79f31a16207699e427fb20f9e3017ab4f10d24ad9eb3c3ff672e6 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 c192ac7357683f78c2e6d6e75adfcc29deb8c4ae gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f01eeda8d7f6c3fe3bb6021a13310c1bc78f7ae9d37288762731968f5f9c36f7 all runs: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, types: [KASAN] the chunk can be dropped minimized to 401 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 CFG80211 CMA DAX DLM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK 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 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 NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_ARP 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 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_POOL 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 PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_4 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS 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 SMC SMC_DIAG SMSC_PHY SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED 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_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_COMPILE_DECOMP_SINGLE 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 SYSFB 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 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 TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE 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_HOST 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_DWC2 USB_GADGET USB_MUSB_HDRC USB_NET_CDC_SUBSET USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS USB_USBNET VIDEO_DEV VXLAN WIRELESS WLAN ZONE_DEVICE] disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing current HEAD 5e3f5b81de80c98338bcb47c233aebefee5a4801 testing commit 5e3f5b81de80c98338bcb47c233aebefee5a4801 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4528f6eccaa0179c395d204629078aa7f2f0c6e90f80cbf2c65503693865e780 all runs: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync representative crash: KASAN: out-of-bounds Write in end_buffer_read_sync, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 3h5m52.259718024s (build: 1h8m45.72116798s, test: 1h9m25.064530724s) crash still not fixed or there were kernel test errors commit msg: Merge tag 'net-6.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net crash: KASAN: out-of-bounds Write in end_buffer_read_sync ================================================================== BUG: KASAN: out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: out-of-bounds in atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline] BUG: KASAN: out-of-bounds in put_bh include/linux/buffer_head.h:306 [inline] BUG: KASAN: out-of-bounds in end_buffer_read_sync+0x60/0x90 fs/buffer.c:161 Write of size 4 at addr ffffc9000354f8f0 by task ksoftirqd/1/21 CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 6.7.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x3d/0x60 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 check_region_inline mm/kasan/generic.c:181 [inline] kasan_check_range+0xef/0x190 mm/kasan/generic.c:187 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_dec include/linux/atomic/atomic-instrumented.h:592 [inline] put_bh include/linux/buffer_head.h:306 [inline] end_buffer_read_sync+0x60/0x90 fs/buffer.c:161 end_bio_bh_io_sync+0xac/0xf0 fs/buffer.c:2775 req_bio_endio block/blk-mq.c:788 [inline] blk_update_request+0x338/0x1130 block/blk-mq.c:933 blk_mq_end_request+0x52/0x460 block/blk-mq.c:1056 blk_complete_reqs+0xa5/0xe0 block/blk-mq.c:1131 __do_softirq+0x24a/0x66e kernel/softirq.c:553 run_ksoftirqd kernel/softirq.c:921 [inline] run_ksoftirqd+0x25/0x30 kernel/softirq.c:913 smpboot_thread_fn+0x4f6/0x7a0 kernel/smpboot.c:164 kthread+0x278/0x330 kernel/kthread.c:388 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 The buggy address belongs to the virtual mapping at [ffffc90003548000, ffffc90003551000) created by: kernel_clone+0xcb/0x7d0 kernel/fork.c:2907 The buggy address belongs to the physical page: page:ffffea0000522340 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1488d flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 2256, tgid 2256 (syz-executor.0), ts 48593765818, free_ts 48588055783 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x27f/0x2f0 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x10ca/0x3680 mm/page_alloc.c:3312 __alloc_pages+0x1d0/0x470 mm/page_alloc.c:4568 alloc_pages_mpol+0x175/0x4a0 mm/mempolicy.c:2133 vm_area_alloc_pages mm/vmalloc.c:3063 [inline] __vmalloc_area_node mm/vmalloc.c:3139 [inline] __vmalloc_node_range+0x6bd/0x1640 mm/vmalloc.c:3320 alloc_thread_stack_node kernel/fork.c:309 [inline] dup_task_struct kernel/fork.c:1118 [inline] copy_process+0x1033/0x5fc0 kernel/fork.c:2332 kernel_clone+0xcb/0x7d0 kernel/fork.c:2907 __do_sys_clone+0xa1/0xe0 kernel/fork.c:3050 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0xe0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x574/0xbe0 mm/page_alloc.c:2347 free_unref_page_list+0xe6/0xab0 mm/page_alloc.c:2533 release_pages+0x297/0x1060 mm/swap.c:1042 __folio_batch_release+0x5d/0xb0 mm/swap.c:1062 folio_batch_release include/linux/pagevec.h:83 [inline] truncate_inode_pages_range+0x25d/0xac0 mm/truncate.c:371 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0xe7/0x220 block/bdev.c:632 blkdev_put_whole+0x90/0xb0 block/bdev.c:663 blkdev_put+0x2e2/0x6e0 block/bdev.c:944 bdev_release+0x4a/0x70 block/bdev.c:954 ntfs3_kill_sb+0x3a/0xe0 fs/ntfs3/super.c:1775 deactivate_locked_super+0x9d/0x160 fs/super.c:484 cleanup_mnt+0x1d8/0x3e0 fs/namespace.c:1256 task_work_run+0x114/0x1f0 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x146/0x150 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x17/0x40 kernel/entry/common.c:296 do_syscall_64+0x4d/0xe0 arch/x86/entry/common.c:89 Memory state around the buggy address: ffffc9000354f780: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000354f800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc9000354f880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffffc9000354f900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000354f980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================