ci2 starts bisection 2024-12-15 17:22:24.672602653 +0000 UTC m=+162164.787647900 bisecting fixing commit since 7c15117f9468c7395ce3fd0892a6f909b91d9005 building syzkaller on f00eed24f2a1332b07fef1a353a439133978d97b ensuring issue is reproducible on original commit 7c15117f9468c7395ce3fd0892a6f909b91d9005 testing commit 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99bc68c8f5c8edfbd35672414899c10862d9784a3d60fd059bcbc2d2756d3aa5 run #0: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00c094280] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #1: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc002882140] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #2: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00c094870] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #3: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc002ebeaf0] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #4: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc002882e60] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #5: infra problem: create instance operation failed: &{Code:QUOTA_EXCEEDED ErrorDetails:[0xc00c095630] Location: Message:Quota 'T2A_CPUS' exceeded. Limit: 125.0 in region us-central1. ForceSendFields:[] NullFields:[]}. run #6: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #7: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #8: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #9: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #10: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #11: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #12: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #13: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #14: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #15: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #16: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #17: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #18: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv run #19: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, 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 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7dd518d9244cf2c37e50041b93bcbe363ce279e55fa25cc3472ca1c9488ceb10 all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, 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=7496 full=9709 leaves diff=1996 split chunks (needed=false): <1996> split chunk #0 of len 1996 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 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fde84183027b5b9766cb75bf53c663843429ffda5201b9a0af7c45a1e5131dce all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, types: [KASAN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 97bce1f32f4e0919e8afa5eeb40d9abd66e9ea2534dc5afcf756f78f435369d4 all runs: boot failed: can't ssh into the instance unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 testing without sub-chunk 3/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fb29ec1d359774aa688d788f67b5e532936723e1cf5a3f5f1469f734973e50a5 all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, 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 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0d5bd65101f5473cc169f37712bd1d34c8fa899a6201308c8843ab1824a7d3db all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 7c15117f9468c7395ce3fd0892a6f909b91d9005 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a617181da48653d2a761a11e92cc3f203cdedf11b2ac6bf60dc32e32df992d14 all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, types: [KASAN] the chunk can be dropped minimized to 400 configs; suspects: [6LOWPAN ACPI_VIDEO DLM DUMMY DVB_AF9013 DVB_AF9033 DVB_AS102 DVB_AS102_FE DVB_B2C2_FLEXCOP DVB_B2C2_FLEXCOP_USB DVB_DIB3000MB DVB_DIB3000MC DVB_EC100 DVB_GP8PSK_FE DVB_RTL2830 DVB_RTL2832 DVB_RTL2832_SDR DVB_TEST_DRIVERS DVB_TTUSB_BUDGET DVB_TTUSB_DEC DVB_USB DVB_USB_A800 DVB_USB_AF9005 DVB_USB_AF9005_REMOTE DVB_USB_AF9015 DVB_USB_AF9035 DVB_USB_ANYSEE DVB_USB_AU6610 DVB_USB_AZ6007 DVB_USB_AZ6027 DVB_USB_CE6230 DVB_USB_CINERGY_T2 DVB_USB_CXUSB DVB_USB_CXUSB_ANALOG DVB_USB_DIB0700 DVB_USB_DIB3000MC DVB_USB_DIBUSB_MB DVB_USB_DIBUSB_MC DVB_USB_DIGITV DVB_USB_DTT200U DVB_USB_DTV5100 DVB_USB_DVBSKY DVB_USB_DW2102 DVB_USB_EC168 DVB_USB_GL861 DVB_USB_GP8PSK DVB_USB_LME2510 DVB_USB_M920X DVB_USB_MXL111SF DVB_USB_NOVA_T_USB2 DVB_USB_OPERA1 DVB_USB_PCTV452E DVB_USB_RTL28XXU DVB_USB_TECHNISAT_USB2 DVB_USB_TTUSB2 DVB_USB_UMT_010 DVB_USB_V2 DVB_USB_VP702X DVB_USB_VP7045 DVB_USB_ZD1301 DVB_VIDTV DVB_ZL10353 E100 ECRYPT_FS ECRYPT_FS_MESSAGING EEPROM_93CX6 EFS_FS ENCRYPTED_KEYS EQUALIZER EROFS_FS EROFS_FS_POSIX_ACL EROFS_FS_SECURITY EROFS_FS_XATTR EROFS_FS_ZIP EVM EVM_ADD_XATTRS EVM_ATTR_FSUUID EXFAT_FS EXPORTFS_BLOCK_OPS EXT3_FS_POSIX_ACL EXT3_FS_SECURITY EXT4_FS_SECURITY EXTCON_USBC_TUSB320 F2FS_CHECK_FS F2FS_FAULT_INJECTION F2FS_FS F2FS_FS_COMPRESSION F2FS_FS_LZ4 F2FS_FS_LZ4HC F2FS_FS_LZO F2FS_FS_LZORLE F2FS_FS_POSIX_ACL F2FS_FS_SECURITY F2FS_FS_XATTR F2FS_FS_ZSTD F2FS_STAT_FS FB_DEFERRED_IO FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_IMAGEBLIT FB_TILEBLITTING FB_VIRTUAL FDDI FIB_RULES FIREWIRE FIREWIRE_NET FIREWIRE_OHCI FIREWIRE_SBP2 FRAMEBUFFER_CONSOLE_ROTATION FRONTSWAP FS_DAX FS_DAX_PMD FS_ENCRYPTION FS_ENCRYPTION_ALGS FS_VERITY FS_VERITY_BUILTIN_SIGNATURES FTL FW_LOADER_COMPRESS FW_LOADER_USER_HELPER_FALLBACK GACT_PROB GET_FREE_REGION GFS2_FS GFS2_FS_LOCKING_DLM GNSS_USB GOOGLE_COREBOOT_TABLE GOOGLE_FIRMWARE GOOGLE_MEMCONSOLE GOOGLE_MEMCONSOLE_COREBOOT GOOGLE_VPD GPIO_DLN2 GPIO_VIPERBOARD GREENASIA_FF GREYBUS GREYBUS_BRIDGED_PHY GREYBUS_ES2 GREYBUS_HID GREYBUS_USB GTP GVE HAVE_ARCH_USERFAULTFD_MINOR HAVE_IMA_KEXEC HDLC HDLC_CISCO HDLC_FR HDLC_PPP HDLC_RAW HDLC_RAW_ETH HDLC_X25 HDMI HFSPLUS_FS HFS_FS HIDRAW HID_ACCUTOUCH HID_ACRUX HID_ACRUX_FF HID_ALPS HID_APPLEIR HID_ASUS HID_AUREAL HID_BATTERY_STRENGTH HID_BETOP_FF HID_BIGBEN_FF HID_CMEDIA HID_CORSAIR HID_COUGAR HID_CP2112 HID_CREATIVE_SB0540 HID_ELAN HID_ELECOM HID_ELO HID_EMS_FF HID_FT260 HID_GEMBIRD HID_GFRM HID_GLORIOUS HID_GREENASIA HID_GT683R HID_GYRATION HID_HOLTEK HID_ICADE HID_JABRA HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_LETSKETCH HID_LOGITECH_DJ HID_LOGITECH_HIDPP HID_MACALLY HID_MAGICMOUSE HID_MALTRON HID_MAYFLASH HID_MCP2221 HID_MEGAWORLD_FF HID_NTI HID_NTRIG HID_ORTEK HID_PENMOUNT HID_PETALYNX HID_PICOLCD HID_PICOLCD_BACKLIGHT HID_PICOLCD_CIR HID_PICOLCD_FB HID_PICOLCD_LCD HID_PICOLCD_LEDS HID_PID HID_PLANTRONICS HID_PRIMAX HID_PRODIKEYS HID_PXRC HID_RAZER HID_RETRODE HID_RMI HID_ROCCAT HID_SAITEK HID_SAMSUNG HID_SEMITEK HID_SENSOR_ACCEL_3D HID_SENSOR_ALS HID_SENSOR_CUSTOM_INTEL_HINGE HID_SENSOR_CUSTOM_SENSOR HID_SENSOR_DEVICE_ROTATION HID_SENSOR_GYRO_3D HID_SENSOR_HUB HID_SENSOR_HUMIDITY HID_SENSOR_IIO_COMMON HID_SENSOR_IIO_TRIGGER HID_SENSOR_INCLINOMETER_3D HID_SENSOR_MAGNETOMETER_3D HID_SENSOR_PRESS HID_SENSOR_PROX HID_SENSOR_TEMP HID_SIGMAMICRO HID_SPEEDLINK HID_STEAM HID_STEELSERIES HID_SUNPLUS HID_THINGM HID_TIVO HID_TOPRE HID_TOPSEED HID_TWINHAN HID_U2FZERO HID_UCLOGIC HID_UDRAW_PS3 HID_VIEWSONIC HID_VIVALDI HID_VIVALDI_COMMON HID_VRC2 HID_WACOM HID_WALTOP HID_WIIMOTE HID_XIAOMI HID_XINMO HID_ZYDACRON HMM_MIRROR HOLTEK_FF HOTPLUG_PCI_PCIE HPFS_FS I2C_CP2615 I2C_DIOLAN_U2C I2C_DLN2 I2C_MUX_REG I2C_ROBOTFUZZ_OSIF I2C_SI4713 I2C_SLAVE_EEPROM I2C_TINY_USB I2C_VIPERBOARD IEEE802154 IEEE802154_6LOWPAN IEEE802154_ATUSB IEEE802154_DRIVERS IEEE802154_HWSIM IEEE802154_NL802154_EXPERIMENTAL IEEE802154_SOCKET IFB IMA IMA_APPRAISE IMA_APPRAISE_MODSIG IMA_DEFAULT_HASH_SHA256 IMA_LSM_RULES IMA_MEASURE_ASYMMETRIC_KEYS IMA_NG_TEMPLATE IMA_QUEUE_EARLY_BOOT_KEYS IMA_READ_POLICY IMA_WRITE_POLICY INET6_AH INET6_ESP INET6_ESPINTCP INET6_ESP_OFFLOAD INET6_IPCOMP INET6_TUNNEL INET6_XFRM_TUNNEL INET_AH INET_DCCP_DIAG INET_DIAG_DESTROY INET_ESP INET_ESPINTCP INET_ESP_OFFLOAD INET_IPCOMP INET_MPTCP_DIAG INET_RAW_DIAG INET_SCTP_DIAG INET_UDP_DIAG INET_XFRM_TUNNEL INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_ADDR_TRANS_CONFIGFS INFINIBAND_IPOIB INFINIBAND_IPOIB_CM INFINIBAND_IPOIB_DEBUG INFINIBAND_ISER INFINIBAND_ON_DEMAND_PAGING INFINIBAND_RTRS INFINIBAND_SRP INFINIBAND_USER_ACCESS INFINIBAND_USER_MAD INFINIBAND_USER_MEM INPUT_ATI_REMOTE2 INPUT_CM109 INPUT_IMS_PCU INPUT_JOYDEV INPUT_KEYSPAN_REMOTE INPUT_LEDS INPUT_MOUSEDEV INPUT_MOUSEDEV_PSAUX INPUT_POWERMATE INPUT_UINPUT INPUT_YEALINK INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_AUDIT INTEGRITY_SIGNATURE INTEGRITY_TRUSTED_KEYRING IP6_NF_MATCH_AH IP6_NF_MATCH_EUI64 IP6_NF_MATCH_FRAG IP6_NF_MATCH_HL IP6_NF_MATCH_IPV6HEADER IP6_NF_MATCH_MH IP6_NF_MATCH_OPTS IP6_NF_MATCH_RPFILTER IP6_NF_MATCH_RT IP6_NF_MATCH_SRH IP6_NF_RAW IP6_NF_SECURITY IP6_NF_TARGET_HL IP6_NF_TARGET_NPT IP6_NF_TARGET_SYNPROXY IPV6_FOU IPV6_FOU_TUNNEL IPV6_GRE IPV6_ILA IPV6_MIP6 IPV6_MROUTE IPV6_MROUTE_MULTIPLE_TABLES IPV6_MULTIPLE_TABLES IPV6_OPTIMISTIC_DAD IPV6_PIMSM_V2 IPV6_ROUTER_PREF IPV6_ROUTE_INFO IPV6_RPL_LWTUNNEL IPV6_SEG6_BPF IPV6_SEG6_HMAC IPV6_SEG6_LWTUNNEL IPV6_SIT_6RD IPV6_SUBTREES IPV6_TUNNEL IPV6_VTI IPVLAN IPVLAN_L3S IPVTAP IP_ADVANCED_ROUTER IP_DCCP IP_DCCP_CCID3 IP_DCCP_TFRC_LIB IP_FIB_TRIE_STATS IP_MROUTE IP_MROUTE_COMMON IP_MROUTE_MULTIPLE_TABLES IP_NF_ARPFILTER IP_NF_ARPTABLES IP_NF_ARP_MANGLE IP_NF_MATCH_AH IP_NF_MATCH_ECN IP_NF_MATCH_RPFILTER IP_NF_MATCH_TTL IP_NF_RAW IP_NF_SECURITY IP_NF_TARGET_CLUSTERIP IP_NF_TARGET_ECN IP_NF_TARGET_NETMAP IP_NF_TARGET_REDIRECT IP_NF_TARGET_SYNPROXY IP_NF_TARGET_TTL IP_PIMSM_V1 IP_PIMSM_V2 IP_PNP_RARP IP_ROUTE_CLASSID IP_ROUTE_MULTIPATH IP_ROUTE_VERBOSE IP_SCTP IP_SET IP_SET_BITMAP_IP IP_SET_BITMAP_IPMAC IP_SET_BITMAP_PORT IP_SET_HASH_IP IP_SET_HASH_IPMAC IP_SET_HASH_IPMARK IP_SET_HASH_IPPORT IP_SET_HASH_IPPORTIP IP_SET_HASH_IPPORTNET IP_SET_HASH_MAC IP_SET_HASH_NET IP_SET_HASH_NETIFACE IP_SET_HASH_NETNET IP_SET_HASH_NETPORT IP_SET_HASH_NETPORTNET IP_SET_LIST_SET IP_VS_DH IP_VS_FO IP_VS_FTP IP_VS_IPV6 IP_VS_LBLC IP_VS_LBLCR IP_VS_LC IP_VS_MH IP_VS_NFCT IP_VS_NQ IP_VS_OVF IP_VS_PE_SIP IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_PROTO_TCP IP_VS_PROTO_UDP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_IMON_RAW IR_MCEUSB IR_REDRAT3 IR_STREAMZAP IR_TOY IR_TTUSBIR ISDN ISDN_CAPI_MIDDLEWARE JFFS2_CMODE_PRIORITY JFFS2_COMPRESSION_OPTIONS JFFS2_FS JFFS2_FS_POSIX_ACL JFFS2_FS_SECURITY JFFS2_FS_WRITEBUFFER JFFS2_FS_XATTR JFFS2_LZO JFFS2_RTIME JFFS2_RUBIN JFFS2_SUMMARY JFFS2_ZLIB JFS_DEBUG JFS_FS JFS_POSIX_ACL JFS_SECURITY LAPB LCD_CLASS_DEVICE MAC802154 MEDIA_RADIO_SUPPORT MEDIA_TEST_SUPPORT MFD_DLN2 MFD_VIPERBOARD MPTCP NET_IPGRE_DEMUX NFT_FWD_NETDEV NF_CONNTRACK_FTP NF_CONNTRACK_SIP NF_TABLES NF_TABLES_NETDEV RADIO_ADAPTERS RADIO_SI4713 RFKILL SND SOUND WAN XFRM ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed testing current HEAD 52f863f820fd540a98596d0dc33ae5cb524fa1e9 testing commit 52f863f820fd540a98596d0dc33ae5cb524fa1e9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: aa5f6522bd3ee43ba2f65842bdd946338d10f2282386e6f5f6b4c7099a4b6fba all runs: crashed: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv representative crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv, types: [KASAN] crash still not fixed/happens on the oldest tested release revisions tested: 8, total time: 2h24m40.186755592s (build: 1h46m11.915340228s, test: 34m33.199230203s) crash still not fixed or there were kernel test errors commit msg: Linux 6.1.120 crash: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 dccp_parse_options: DCCP(00000000851b2767): Option 32 (len=7) error=9 ================================================================== BUG: KASAN: use-after-free in dccp_ackvec_runlen net/dccp/ackvec.h:43 [inline] BUG: KASAN: use-after-free in ccid2_hc_tx_packet_recv+0x1410/0x194c net/dccp/ccids/ccid2.c:592 Read of size 1 at addr ffff0000d7467434 by task syz.2.15/3600 CPU: 0 PID: 3600 Comm: syz.2.15 Not tainted 6.1.120-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x100/0x150 arch/arm64/kernel/stacktrace.c:158 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x78/0xa4 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:427 kasan_report+0xcc/0x124 mm/kasan/report.c:531 __asan_report_load1_noabort+0x2c/0x38 mm/kasan/report_generic.c:348 dccp_ackvec_runlen net/dccp/ackvec.h:43 [inline] ccid2_hc_tx_packet_recv+0x1410/0x194c net/dccp/ccids/ccid2.c:592 ccid_hc_tx_packet_recv net/dccp/ccid.h:189 [inline] dccp_deliver_input_to_ccids net/dccp/input.c:182 [inline] dccp_rcv_established+0x1cc/0x228 net/dccp/input.c:374 dccp_v6_do_rcv+0x1a0/0x690 net/dccp/ipv6.c:622 sk_backlog_rcv include/net/sock.h:1119 [inline] __release_sock+0x124/0x318 net/core/sock.c:2936 release_sock+0x5c/0x17c net/core/sock.c:3500 dccp_sendmsg+0x278/0x630 net/dccp/proto.c:800 inet_sendmsg+0x98/0xb8 net/ipv4/af_inet.c:841 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x41c/0x6ac net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmmsg+0x2b8/0x5b4 net/socket.c:2659 __do_sys_sendmmsg net/socket.c:2688 [inline] __se_sys_sendmmsg net/socket.c:2685 [inline] __arm64_sys_sendmmsg+0x9c/0xb8 net/socket.c:2685 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x7c/0x254 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x15c/0x1d8 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x4c/0xec arch/arm64/kernel/syscall.c:204 el0_svc+0x34/0x100 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Allocated by task 3600: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc_node_track_caller+0xb0/0x100 mm/slab_common.c:956 kmalloc_reserve net/core/skbuff.c:446 [inline] __alloc_skb+0x1b4/0x5d8 net/core/skbuff.c:515 alloc_skb include/linux/skbuff.h:1271 [inline] dccp_send_ack+0x8c/0x29c net/dccp/output.c:585 ccid2_hc_rx_packet_recv+0xc8/0x16c net/dccp/ccids/ccid2.c:771 ccid_hc_rx_packet_recv net/dccp/ccid.h:182 [inline] dccp_deliver_input_to_ccids net/dccp/input.c:176 [inline] dccp_rcv_established+0x144/0x228 net/dccp/input.c:374 dccp_v6_do_rcv+0x1a0/0x690 net/dccp/ipv6.c:622 sk_backlog_rcv include/net/sock.h:1119 [inline] __sk_receive_skb+0x2a8/0x738 net/core/sock.c:569 dccp_v6_rcv+0xd50/0xe4c net/dccp/ipv6.c:791 ip6_protocol_deliver_rcu+0xab0/0x10e4 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [inline] NF_HOOK include/linux/netfilter.h:302 [inline] ip6_input+0x140/0x358 net/ipv6/ip6_input.c:492 dst_input include/net/dst.h:454 [inline] ip6_rcv_finish+0x150/0x170 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:302 [inline] ipv6_rcv+0xe0/0x258 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5536 [inline] __netif_receive_skb+0x180/0x3d4 net/core/dev.c:5650 process_backlog+0x27c/0x520 net/core/dev.c:5978 __napi_poll+0x9c/0x320 net/core/dev.c:6545 napi_poll net/core/dev.c:6612 [inline] net_rx_action+0x44c/0xa08 net/core/dev.c:6726 handle_softirqs+0x204/0x674 kernel/softirq.c:571 __do_softirq+0x14/0x20 kernel/softirq.c:605 Freed by task 3600: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_free_info+0x38/0x5c mm/kasan/generic.c:516 ____kasan_slab_free+0x144/0x1c0 mm/kasan/common.c:236 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:244 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1724 [inline] slab_free_freelist_hook mm/slub.c:1750 [inline] slab_free mm/slub.c:3661 [inline] __kmem_cache_free+0x2ac/0x470 mm/slub.c:3674 kfree+0x88/0xb8 mm/slab_common.c:988 skb_free_head net/core/skbuff.c:762 [inline] skb_release_data+0x30c/0x52c net/core/skbuff.c:791 skb_release_all net/core/skbuff.c:856 [inline] __kfree_skb net/core/skbuff.c:870 [inline] kfree_skb_reason+0x80/0xc8 net/core/skbuff.c:893 dccp_v6_do_rcv+0xd8/0x690 sk_backlog_rcv include/net/sock.h:1119 [inline] __release_sock+0x124/0x318 net/core/sock.c:2936 release_sock+0x5c/0x17c net/core/sock.c:3500 dccp_sendmsg+0x278/0x630 net/dccp/proto.c:800 inet_sendmsg+0x98/0xb8 net/ipv4/af_inet.c:841 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x41c/0x6ac net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmmsg+0x2b8/0x5b4 net/socket.c:2659 __do_sys_sendmmsg net/socket.c:2688 [inline] __se_sys_sendmmsg net/socket.c:2685 [inline] __arm64_sys_sendmmsg+0x9c/0xb8 net/socket.c:2685 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x7c/0x254 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x15c/0x1d8 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x4c/0xec arch/arm64/kernel/syscall.c:204 el0_svc+0x34/0x100 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 call_rcu+0xf0/0x6b0 kernel/rcu/tree.c:2845 netlink_release+0xbf8/0x1190 net/netlink/af_netlink.c:800 __sock_release net/socket.c:654 [inline] sock_release+0x7c/0x120 net/socket.c:682 netlink_kernel_release+0x40/0x50 net/netlink/af_netlink.c:2046 rdma_nl_net_exit+0x38/0x48 drivers/infiniband/core/netlink.c:328 rdma_dev_exit_net+0x250/0x2f0 drivers/infiniband/core/device.c:1152 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x4d4/0x924 net/core/net_namespace.c:604 process_one_work+0x5dc/0xb1c kernel/workqueue.c:2292 worker_thread+0x754/0xd08 kernel/workqueue.c:2439 kthread+0x1d0/0x228 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 The buggy address belongs to the object at ffff0000d7467000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1076 bytes inside of 2048-byte region [ffff0000d7467000, ffff0000d7467800) The buggy address belongs to the physical page: page:0000000062cbd180 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x117460 head:0000000062cbd180 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002900 raw: 0000000000000000 0000000000080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d7467300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d7467380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff0000d7467400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff0000d7467480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff0000d7467500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================