ci2 starts bisection 2023-09-20 20:22:27.911226468 +0000 UTC m=+648279.940400571 bisecting fixing commit since 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 building syzkaller on 668cb1fa42960ece96b7da8d9204e486ba6dcdf6 ensuring issue is reproducible on original commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b0aa05439a819dfebd0184451d3670e2e2914cb9c6898e93abbcb400349d810 run #0: crashed: INFO: rcu detected stall in sys_mkdirat run #1: crashed: INFO: rcu detected stall in sys_clock_adjtime run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in sys_clock_adjtime run #4: crashed: INFO: rcu detected stall in process_one_work run #5: crashed: INFO: rcu detected stall in sys_clock_adjtime run #6: crashed: INFO: rcu detected stall in sys_newfstatat run #7: crashed: INFO: rcu detected stall in dcache_dir_open run #8: crashed: INFO: rcu detected stall in process_one_work run #9: crashed: INFO: rcu detected stall in sys_clock_adjtime run #10: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #11: crashed: INFO: rcu detected stall in sys_clock_adjtime run #12: crashed: INFO: rcu detected stall in sys_clock_adjtime run #13: crashed: INFO: rcu detected stall in sys_clock_adjtime run #14: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #15: crashed: INFO: rcu detected stall in sys_clock_adjtime run #16: crashed: INFO: rcu detected stall in sys_clock_adjtime run #17: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #18: crashed: INFO: rcu detected stall in process_one_work run #19: crashed: INFO: rcu detected stall in sys_umount representative crash: INFO: rcu detected stall in sys_mkdirat, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f64bf41cf8b265d30ccda9bd5134e6691e80276a60264322acea46d01180bf35 run #0: crashed: INFO: rcu detected stall in sys_mprotect run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in do_mas_munmap run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in sys_openat run #7: crashed: INFO: rcu detected stall in wb_workfn run #8: crashed: INFO: rcu detected stall in corrupted run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1313028924" "root@10.128.10.33:./syz-executor1313028924"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.33, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.33 [10.128.10.33] port 22. debug1: connect to address 10.128.10.33 port 22: Connection timed out ssh: connect to host 10.128.10.33 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in sys_mprotect, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3820 full=7524 leaves diff=1995 split chunks (needed=false): <1995> split chunk #0 of len 1995 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 581470316ff0b25db6f8e48e1efd4028d1a9ddbdeb58695f71061f2ff02aaa97 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3317450520" "root@10.128.10.24:./syz-executor3317450520"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.24, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.24 [10.128.10.24] port 22. debug1: connect to address 10.128.10.24 port 22: Connection timed out ssh: connect to host 10.128.10.24 port 22: Connection timed out scp: Connection closed run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3736973682" "root@10.128.10.32:./syz-executor3736973682"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.32, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.32 [10.128.10.32] port 22. debug1: connect to address 10.128.10.32 port 22: Connection timed out ssh: connect to host 10.128.10.32 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3250090370" "root@10.128.10.36:./syz-executor3250090370"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.36, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.36 [10.128.10.36] port 22. debug1: connect to address 10.128.10.36 port 22: Connection timed out ssh: connect to host 10.128.10.36 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f20706708006aeb7942f7e6dcd6f990c4665e983fbd3b2619de56c135a110fe4 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in sys_newfstatat run #2: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1638686094" "root@10.128.10.45:./syz-executor1638686094"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.45, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.45 [10.128.10.45] port 22. debug1: connect to address 10.128.10.45 port 22: Connection timed out ssh: connect to host 10.128.10.45 port 22: Connection timed out scp: Connection closed run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2208808352" "root@10.128.1.94:./syz-executor2208808352"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.94, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.94 [10.128.1.94] port 22. debug1: connect to address 10.128.1.94 port 22: Connection timed out ssh: connect to host 10.128.1.94 port 22: Connection timed out scp: Connection closed run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3449691408" "root@10.128.10.19:./syz-executor3449691408"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.19, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.19 [10.128.10.19] port 22. debug1: connect to address 10.128.10.19 port 22: Connection timed out ssh: connect to host 10.128.10.19 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1996865724" "root@10.128.10.40:./syz-executor1996865724"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.40, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.40 [10.128.10.40] port 22. debug1: connect to address 10.128.10.40 port 22: Connection timed out ssh: connect to host 10.128.10.40 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9251b31c1ee40ebaaa1bded0b7663b2c6bcc977063cb5b0ee08e993da468ab13 all runs: OK false negative chance: 0.000 testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ad7b24f1ece0a321a6ff9bdd8c43da039ebe6183fb8273c7f1112bd4d57b9bdd run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in sys_openat run #2: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2200504588" "root@10.128.10.46:./syz-executor2200504588"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.46, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.46 [10.128.10.46] port 22. debug1: connect to address 10.128.10.46 port 22: Connection timed out ssh: connect to host 10.128.10.46 port 22: Connection timed out scp: Connection closed run #8: crashed: INFO: rcu detected stall in do_idle run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1277638304" "root@10.128.10.47:./syz-executor1277638304"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.47, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.47 [10.128.10.47] port 22. debug1: connect to address 10.128.10.47 port 22: Connection timed out ssh: connect to host 10.128.10.47 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in corrupted, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing commit 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 8822bec504da3d71e899f223bf6c864006e9db95c14b8e3b4e880e8d696fd1d7 run #0: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in wb_workfn run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in sys_openat run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3641469145" "root@10.128.10.14:./syz-executor3641469145"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.14, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.14 [10.128.10.14] port 22. debug1: connect to address 10.128.10.14 port 22: Connection timed out ssh: connect to host 10.128.10.14 port 22: Connection timed out scp: Connection closed run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in syscall_exit_to_user_mode, types: [HANG] the chunk can be dropped minimized to 399 configs; suspects: [ATM AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB FSCACHE HAMRADIO HSR INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS IP_VS_PROTO_AH IP_VS_PROTO_AH_ESP IP_VS_PROTO_ESP IP_VS_PROTO_SCTP IP_VS_RR IP_VS_SED IP_VS_SH IP_VS_TWOS IP_VS_WLC IP_VS_WRR IRQ_BYPASS_MANAGER IRQ_POLL IR_IGORPLUGUSB IR_IGUANA IR_IMON IR_MCEUSB IR_REDRAT3 IR_STREAMZAP 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 JOYSTICK_IFORCE JOYSTICK_IFORCE_USB JOYSTICK_XPAD JOYSTICK_XPAD_FF JOYSTICK_XPAD_LEDS KARMA_PARTITION KCOV KCOV_ENABLE_COMPARISONS KCOV_INSTRUMENT_ALL KEYS_REQUEST_CACHE KEY_DH_OPERATIONS KEY_NOTIFICATIONS KSM KVM KVM_AMD KVM_ASYNC_PF KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_MMIO KVM_VFIO KVM_XEN KVM_XFER_TO_GUEST_WORK L2TP L2TP_ETH L2TP_IP L2TP_V3 LAPB LAPBETHER LDM_PARTITION LEDS_TRIGGER_AUDIO LEGACY_PTYS LIBCRC32C LIBNVDIMM LINEAR_RANGES LLC LLC2 LOCK_MM_AND_FIND_VMA LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LRU_GEN LRU_GEN_ENABLED LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_DEBUGFS MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_LINEAR MD_MULTIPATH MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_CONTROLLER_REQUEST_API MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMORY_BALLOON MEMORY_HOTPLUG MEMORY_HOTPLUG_DEFAULT_ONLINE MEMORY_ISOLATION MEMREGION MEMSTICK MEMSTICK_REALTEK_USB MEM_SOFT_DIRTY MFD_CORE MFD_SYSCON MHI_BUS MHI_WWAN_CTRL MHP_MEMMAP_ON_MEMORY MICROCHIP_PHY MINIX_FS MINIX_SUBPARTITION MISC_RTSX MISC_RTSX_USB MISDN MISDN_DSP MISDN_HFCUSB MISDN_L1OIP MKISS MLX4_CORE MLX4_INFINIBAND MMC MMC_REALTEK_USB MMC_USHC MMC_VUB300 MMU_NOTIFIER MODULE_SRCVERSION_ALL MODVERSIONS MOST MOUSE_APPLETOUCH MOUSE_BCM5974 MOUSE_PS2 MOUSE_PS2_ALPS MOUSE_PS2_BYD MOUSE_PS2_CYPRESS MOUSE_PS2_FOCALTECH MOUSE_PS2_LIFEBOOK MOUSE_PS2_LOGIPS2PP MOUSE_PS2_SMBUS MOUSE_PS2_SYNAPTICS MOUSE_PS2_SYNAPTICS_SMBUS MOUSE_PS2_TRACKPOINT MOUSE_SYNAPTICS_USB MPLS MPLS_IPTUNNEL MPLS_ROUTING MPTCP MPTCP_IPV6 MRP MTD MTD_BLKDEVS MTD_BLOCK MTD_BLOCK2MTD MTD_CFI_I1 MTD_CFI_I2 MTD_MAP_BANK_WIDTH_1 MTD_MAP_BANK_WIDTH_2 MTD_MAP_BANK_WIDTH_4 MTD_MTDRAM MTD_PHRAM MTD_SLRAM MUSB_PIO_ONLY ND_BTT ND_CLAIM ND_PFN NETDEVSIM NETFILTER_ADVANCED NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XT_CONNMARK NETFILTER_XT_MATCH_BPF NETFILTER_XT_MATCH_CGROUP NETFILTER_XT_MATCH_CLUSTER NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_CONNBYTES NETFILTER_XT_MATCH_CONNLABEL NETFILTER_XT_MATCH_CONNLIMIT NETFILTER_XT_MATCH_CONNMARK NETFILTER_XT_MATCH_CPU NETFILTER_XT_MATCH_DCCP NETFILTER_XT_MATCH_DEVGROUP NETFILTER_XT_MATCH_DSCP NETFILTER_XT_MATCH_ECN NETFILTER_XT_MATCH_ESP NETFILTER_XT_MATCH_HASHLIMIT NETFILTER_XT_MATCH_HELPER NETFILTER_XT_MATCH_HL NETFILTER_XT_MATCH_IPCOMP NETFILTER_XT_MATCH_IPRANGE NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_L2TP NETFILTER_XT_MATCH_LENGTH NETFILTER_XT_MATCH_LIMIT NETFILTER_XT_MATCH_MAC NETFILTER_XT_MATCH_MARK NETFILTER_XT_MATCH_MULTIPORT NETFILTER_XT_MATCH_NFACCT NETFILTER_XT_MATCH_OSF NETFILTER_XT_MATCH_OWNER NETFILTER_XT_MATCH_PHYSDEV NETFILTER_XT_MATCH_PKTTYPE NETFILTER_XT_MATCH_QUOTA NETFILTER_XT_MATCH_RATEEST NETFILTER_XT_MATCH_REALM NETFILTER_XT_MATCH_RECENT NETFILTER_XT_MATCH_SCTP NETFILTER_XT_MATCH_SOCKET NETFILTER_XT_MATCH_STATISTIC NETFILTER_XT_MATCH_STRING NETFILTER_XT_MATCH_TCPMSS NETFILTER_XT_MATCH_TIME NETFILTER_XT_MATCH_U32 NETFILTER_XT_SET NETFILTER_XT_TARGET_AUDIT NETFILTER_XT_TARGET_CHECKSUM NETFILTER_XT_TARGET_CLASSIFY NETFILTER_XT_TARGET_CONNMARK NETFILTER_XT_TARGET_CT NETFILTER_XT_TARGET_DSCP NETFILTER_XT_TARGET_HL NETFILTER_XT_TARGET_HMARK NETFILTER_XT_TARGET_IDLETIMER NETFILTER_XT_TARGET_LED NETFILTER_XT_TARGET_MARK NETFILTER_XT_TARGET_NETMAP NETFILTER_XT_TARGET_NFQUEUE NETFILTER_XT_TARGET_NOTRACK NETFILTER_XT_TARGET_RATEEST NETFILTER_XT_TARGET_REDIRECT NETFILTER_XT_TARGET_TCPOPTSTRIP NETFILTER_XT_TARGET_TEE NETFILTER_XT_TARGET_TPROXY NETFILTER_XT_TARGET_TRACE NETLABEL NETLINK_DIAG NETROM NET_9P_RDMA NET_ACT_BPF NET_ACT_CONNMARK NET_ACT_CSUM NET_ACT_CT NET_ACT_CTINFO NET_ACT_GATE NET_ACT_IFE NET_ACT_IPT NET_ACT_MPLS NET_ACT_NAT NET_ACT_PEDIT NET_ACT_POLICE NET_ACT_SAMPLE NET_ACT_SIMP NET_ACT_SKBEDIT NET_ACT_SKBMOD NET_ACT_TUNNEL_KEY NET_ACT_VLAN NET_CLS_BASIC NET_CLS_BPF NET_CLS_FLOW NET_CLS_FLOWER NET_CLS_FW NET_CLS_MATCHALL NET_CLS_ROUTE4 NET_CLS_RSVP NET_CLS_RSVP6 NET_DEVLINK NET_DROP_MONITOR NET_DSA NET_DSA_TAG_BRCM NET_DSA_TAG_BRCM_COMMON NET_DSA_TAG_BRCM_PREPEND NET_DSA_TAG_MTK NET_DSA_TAG_QCA NET_DSA_TAG_RTL4_A NET_EMATCH_CANID NET_EMATCH_CMP NET_EMATCH_IPSET NET_EMATCH_IPT NET_EMATCH_META NET_EMATCH_NBYTE NET_EMATCH_TEXT NET_EMATCH_U32 NET_FC NET_FOU NET_FOU_IP_TUNNELS NET_IFE NET_IFE_SKBMARK NET_IFE_SKBPRIO NET_IFE_SKBTCINDEX NET_IPGRE NET_IPGRE_BROADCAST NET_IPGRE_DEMUX NET_IPIP NET_IPVTI NET_KEY NET_KEY_MIGRATE NET_L3_MASTER_DEV NET_MPLS_GSO NET_NCSI NET_NSH NET_REDIRECT NET_SCH_ATM NET_SCH_CAKE NET_SCH_CBQ NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR NET_SCH_DSMARK NET_SCH_ETF NET_SCH_ETS NET_SCH_FQ NET_SCH_FQ_CODEL NET_SCH_FQ_PIE NET_SCH_GRED NET_SCH_HFSC NET_SCH_HHF NET_SCH_HTB NET_SCH_INGRESS NET_SCH_MQPRIO NET_SCH_MULTIQ NET_SCH_NETEM NET_SCH_PIE NET_SCH_PLUG NET_SCH_PRIO NET_SCH_QFQ NET_SCH_RED NET_SCH_SFB NET_SCH_SFQ NET_SCH_SKBPRIO NET_SCH_TAPRIO NET_SCH_TBF NET_SCH_TEQL NET_SOCK_MSG NET_SWITCHDEV NET_TC_SKB_EXT NET_TEAM NET_TEAM_MODE_ACTIVEBACKUP NET_TEAM_MODE_BROADCAST NET_TEAM_MODE_LOADBALANCE NET_TEAM_MODE_RANDOM NET_TEAM_MODE_ROUNDROBIN NET_UDP_TUNNEL NET_VRF NFC NFC_DIGITAL NFC_FDP NFC_HCI NFC_MRVL NFC_MRVL_USB NFC_NCI NFC_NCI_UART NFC_PN533 NFC_PN533_USB NFC_PORT100 NFC_SHDLC NFC_SIM NFC_VIRTUAL_NCI NFSD NFSD_BLOCKLAYOUT NFSD_FLEXFILELAYOUT NFSD_PNFS NFSD_SCSILAYOUT NFSD_V2_ACL NFSD_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V4_1 NFS_V4_2 NFS_V4_2_READ_PLUS NFS_V4_2_SSC_HELPER NFS_V4_SECURITY_LABEL NFT_BRIDGE_META NFT_BRIDGE_REJECT NFT_COMPAT NFT_CONNLIMIT NFT_CT NFT_DUP_IPV4 NFT_DUP_IPV6 NFT_DUP_NETDEV NFT_FIB NFT_FIB_INET NFT_FIB_IPV4 NFT_FIB_IPV6 NFT_FIB_NETDEV NFT_FLOW_OFFLOAD NFT_HASH NFT_LIMIT NFT_LOG NFT_MASQ NFT_NAT NFT_NUMGEN NFT_OSF NFT_QUEUE NFT_QUOTA NFT_REDIR NFT_REJECT NFT_REJECT_INET NFT_REJECT_IPV4 NFT_REJECT_IPV6 NFT_REJECT_NETDEV NFT_SOCKET NFT_SYNPROXY NFT_TPROXY NFT_TUNNEL NFT_XFRM NF_CONNTRACK_AMANDA NF_CONNTRACK_BRIDGE NF_CONNTRACK_BROADCAST NF_CONNTRACK_EVENTS NF_CONNTRACK_H323 NF_CONNTRACK_LABELS NF_CONNTRACK_MARK NF_CONNTRACK_NETBIOS_NS NF_CONNTRACK_PPTP NF_CONNTRACK_SANE NF_CONNTRACK_SNMP NF_CONNTRACK_TFTP NF_CONNTRACK_TIMEOUT NF_CONNTRACK_TIMESTAMP NF_CONNTRACK_ZONES NF_CT_NETLINK_HELPER NF_CT_NETLINK_TIMEOUT NF_CT_PROTO_DCCP NF_CT_PROTO_GRE NF_CT_PROTO_SCTP NF_CT_PROTO_UDPLITE NF_DUP_IPV4 NF_DUP_IPV6 NF_DUP_NETDEV NF_FLOW_TABLE NF_FLOW_TABLE_INET NF_NAT_AMANDA NF_NAT_H323 NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV PARTITION_ADVANCED PSAMPLE RC_CORE RC_DEVICES RFKILL SPI USB_GADGET USB_MUSB_HDRC VIDEO_DEV WAN WATCH_QUEUE WIRELESS WLAN WWAN X25 X86_X32_ABI] disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing current HEAD a356197db198ad9825ce225f19f2c7448ef9eea0 testing commit a356197db198ad9825ce225f19f2c7448ef9eea0 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: be1626b944c8833f59e81defdbd02f58e282b464a8d03cd9b5a59eef382ca1c4 all runs: OK false negative chance: 0.000 # git bisect start a356197db198ad9825ce225f19f2c7448ef9eea0 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 Bisecting: 1360 revisions left to test after this (roughly 10 steps) [37f6073f7db329c9db4357f82e565958fb64ea16] drm/i915/gt: Cleanup aux invalidation registers determine whether the revision contains the guilty commit revision 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 crashed and is reachable testing commit 37f6073f7db329c9db4357f82e565958fb64ea16 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 199b37696854620bb3dda48b61108f729f4ba3f368967e57d876ff23574741c7 all runs: OK false negative chance: 0.000 # git bisect bad 37f6073f7db329c9db4357f82e565958fb64ea16 Bisecting: 680 revisions left to test after this (roughly 9 steps) [de67dadd5cb3428d68cd10f86f71f08b3f71a11d] mtd: rawnand: meson: fix unaligned DMA buffers handling determine whether the revision contains the guilty commit revision 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 crashed and is reachable testing commit de67dadd5cb3428d68cd10f86f71f08b3f71a11d gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75b907856a3a8cd2ec9648c6fd61b3ea4314addfe00f599f5bb31786fcce8e8c run #0: crashed: INFO: rcu detected stall in dput run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in sys_openat run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in gc_worker run #8: crashed: INFO: rcu detected stall in do_idle run #9: crashed: INFO: rcu detected stall in do_idle representative crash: INFO: rcu detected stall in dput, types: [HANG] # git bisect good de67dadd5cb3428d68cd10f86f71f08b3f71a11d Bisecting: 340 revisions left to test after this (roughly 8 steps) [1dc23fb83b71f65130d4bd63ab25447c8ee51754] i2c: Improve size determinations determine whether the revision contains the guilty commit revision 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 crashed and is reachable testing commit 1dc23fb83b71f65130d4bd63ab25447c8ee51754 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5ca126858453fb6e6866d2b633c1b4feb27826702aa93be311d0f3554552b870 run #0: crashed: INFO: rcu detected stall in sys_clock_adjtime run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1022673042" "root@10.128.1.189:./syz-executor1022673042"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.189, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.189 [10.128.1.189] port 22. debug1: connect to address 10.128.1.189 port 22: Connection timed out ssh: connect to host 10.128.1.189 port 22: Connection timed out scp: Connection closed run #8: OK run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in sys_clock_adjtime, types: [HANG] # git bisect good 1dc23fb83b71f65130d4bd63ab25447c8ee51754 Bisecting: 170 revisions left to test after this (roughly 7 steps) [af7aa4fe94b3dc0652f7fb5369f78623e98b0310] proc/vmcore: fix signedness bug in read_from_oldmem() determine whether the revision contains the guilty commit revision de67dadd5cb3428d68cd10f86f71f08b3f71a11d crashed and is reachable testing commit af7aa4fe94b3dc0652f7fb5369f78623e98b0310 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 342f66f64a5db85d67b73dd203b71c87caf86afa53f1697101bb8fe5a1e24a44 run #0: crashed: INFO: rcu detected stall in process_one_work run #1: crashed: INFO: rcu detected stall in do_idle run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in sys_unlink run #4: crashed: INFO: rcu detected stall in sys_readlink run #5: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #6: crashed: INFO: rcu detected stall in dput run #7: crashed: INFO: rcu detected stall in sock_close run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2367254329" "root@10.128.10.18:./syz-executor2367254329"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.18, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.18 [10.128.10.18] port 22. debug1: connect to address 10.128.10.18 port 22: Connection timed out ssh: connect to host 10.128.10.18 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3207744106" "root@10.128.0.167:./syz-executor3207744106"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.167, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.167 [10.128.0.167] port 22. debug1: connect to address 10.128.0.167 port 22: Connection timed out ssh: connect to host 10.128.0.167 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in process_one_work, types: [HANG] # git bisect good af7aa4fe94b3dc0652f7fb5369f78623e98b0310 Bisecting: 85 revisions left to test after this (roughly 7 steps) [608ac7ea5f057dca02df0f6fec70cdadf4aa47b3] arm64: dts: imx8mm-venice-gw7904: disable disp_blk_ctrl determine whether the revision contains the guilty commit revision 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 crashed and is reachable testing commit 608ac7ea5f057dca02df0f6fec70cdadf4aa47b3 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9d9e9f2ccf012b20f9d564071a3badb00a0160d75e48c61aaeded9916975b5bf run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in sys_futex run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in sys_munmap run #5: crashed: INFO: rcu detected stall in security_file_open run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in do_idle run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1056132707" "root@10.128.10.22:./syz-executor1056132707"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.22, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.22 [10.128.10.22] port 22. debug1: connect to address 10.128.10.22 port 22: Connection timed out ssh: connect to host 10.128.10.22 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3470563445" "root@10.128.10.25:./syz-executor3470563445"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.25, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.25 [10.128.10.25] port 22. debug1: connect to address 10.128.10.25 port 22: Connection timed out ssh: connect to host 10.128.10.25 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 608ac7ea5f057dca02df0f6fec70cdadf4aa47b3 Bisecting: 42 revisions left to test after this (roughly 6 steps) [8afe27770dea9c4af991253c48db4a4dcc35f1a4] net: korina: handle clk prepare error in korina_probe() determine whether the revision contains the guilty commit revision de67dadd5cb3428d68cd10f86f71f08b3f71a11d crashed and is reachable testing commit 8afe27770dea9c4af991253c48db4a4dcc35f1a4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 43be104368a3af8bd32b99b67236a9b7d5b8e672690ef57af5e7a9910b2a8117 all runs: OK false negative chance: 0.000 # git bisect bad 8afe27770dea9c4af991253c48db4a4dcc35f1a4 Bisecting: 21 revisions left to test after this (roughly 5 steps) [22709d85373ffc6278c8961dfe43180e66355ecb] perf test uprobe_from_different_cu: Skip if there is no gcc determine whether the revision contains the guilty commit revision de67dadd5cb3428d68cd10f86f71f08b3f71a11d crashed and is reachable testing commit 22709d85373ffc6278c8961dfe43180e66355ecb gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fc6bbdf9c4c9a886d3acd7d1e6052226f4f6405dfba64d1fe738e01c63eeacde run #0: crashed: INFO: rcu detected stall in do_idle run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in do_idle run #8: crashed: INFO: rcu detected stall in sys_openat run #9: crashed: INFO: rcu detected stall in corrupted representative crash: INFO: rcu detected stall in do_idle, types: [HANG] # git bisect good 22709d85373ffc6278c8961dfe43180e66355ecb Bisecting: 10 revisions left to test after this (roughly 4 steps) [dd7a1ff07c6c741e6d56e65316f57835ed750eca] net: add missing data-race annotations around sk->sk_peek_off determine whether the revision contains the guilty commit revision 1dc23fb83b71f65130d4bd63ab25447c8ee51754 crashed and is reachable testing commit dd7a1ff07c6c741e6d56e65316f57835ed750eca gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 484f95123562f2ccf2a39ae1254edfb5b38ff6ccf56d2a8f44ae866baf64cfa2 run #0: crashed: INFO: rcu detected stall in process_one_work run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in sys_readlink run #5: crashed: INFO: rcu detected stall in do_idle run #6: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #7: crashed: INFO: rcu detected stall in do_idle run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor23147185" "root@10.128.10.22:./syz-executor23147185"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.22, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.22 [10.128.10.22] port 22. debug1: connect to address 10.128.10.22 port 22: Connection timed out ssh: connect to host 10.128.10.22 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1285418251" "root@10.128.10.30:./syz-executor1285418251"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.30, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.30 [10.128.10.30] port 22. debug1: connect to address 10.128.10.30 port 22: Connection timed out ssh: connect to host 10.128.10.30 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in process_one_work, types: [HANG] # git bisect good dd7a1ff07c6c741e6d56e65316f57835ed750eca Bisecting: 5 revisions left to test after this (roughly 3 steps) [cbd000451885801e9bbfd9cf7a7946806a85cb5e] bpf, cpumap: Handle skb as well when clean up ptr_ring determine whether the revision contains the guilty commit revision 61fd484b2cf6bc8022e8e5ea6f693a9991740ac2 crashed and is reachable testing commit cbd000451885801e9bbfd9cf7a7946806a85cb5e gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 29927ba29eeafaf38989e81a1ab560f83869803a1e7adde76251f29176583633 all runs: OK false negative chance: 0.000 # git bisect bad cbd000451885801e9bbfd9cf7a7946806a85cb5e Bisecting: 2 revisions left to test after this (roughly 1 step) [12d4ba18142434949977f7de9225847fd7147876] net: annotate data-races around sk->sk_priority determine whether the revision contains the guilty commit revision de67dadd5cb3428d68cd10f86f71f08b3f71a11d crashed and is reachable testing commit 12d4ba18142434949977f7de9225847fd7147876 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 32a1bf7584f69a58af1e44585b301541909e1864d83ae84e5837f8dc458af85e run #0: crashed: INFO: rcu detected stall in sys_close run #1: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #2: crashed: INFO: rcu detected stall in do_idle run #3: crashed: INFO: rcu detected stall in do_idle run #4: crashed: INFO: rcu detected stall in do_idle run #5: crashed: INFO: rcu detected stall in sys_openat run #6: crashed: INFO: rcu detected stall in do_idle run #7: crashed: INFO: rcu detected stall in syscall_exit_to_user_mode run #8: crashed: INFO: rcu detected stall in do_idle run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1814364041" "root@10.128.1.35:./syz-executor1814364041"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.35, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.35 [10.128.1.35] port 22. debug1: connect to address 10.128.1.35 port 22: Connection timed out ssh: connect to host 10.128.1.35 port 22: Connection timed out scp: Connection closed representative crash: INFO: rcu detected stall in sys_close, types: [HANG] # git bisect good 12d4ba18142434949977f7de9225847fd7147876 Bisecting: 0 revisions left to test after this (roughly 1 step) [4461b2cae3262279f254b3cd0f02d4323b1acc01] ice: Fix RDMA VSI removal during queue rebuild determine whether the revision contains the guilty commit revision 608ac7ea5f057dca02df0f6fec70cdadf4aa47b3 crashed and is reachable testing commit 4461b2cae3262279f254b3cd0f02d4323b1acc01 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4aa93c86831caa6f102d48dce050b6b1a49f277336b57d89d282b0fde3957d7a all runs: OK false negative chance: 0.000 # git bisect bad 4461b2cae3262279f254b3cd0f02d4323b1acc01 Bisecting: 0 revisions left to test after this (roughly 0 steps) [0b45af982a4df0b14fb8669ee2a871cfdfa6a39c] net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. determine whether the revision contains the guilty commit revision 12d4ba18142434949977f7de9225847fd7147876 crashed and is reachable testing commit 0b45af982a4df0b14fb8669ee2a871cfdfa6a39c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eebfad7e640feb4ff06f30f34ae85f5983d565c5bb16907578b9d62d09a8e10a all runs: OK false negative chance: 0.000 # git bisect bad 0b45af982a4df0b14fb8669ee2a871cfdfa6a39c 0b45af982a4df0b14fb8669ee2a871cfdfa6a39c is the first bad commit commit 0b45af982a4df0b14fb8669ee2a871cfdfa6a39c Author: Kuniyuki Iwashima Date: Fri Jul 28 17:07:05 2023 -0700 net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. [ Upstream commit e739718444f7bf2fa3d70d101761ad83056ca628 ] syzkaller found zero division error [0] in div_s64_rem() called from get_cycle_time_elapsed(), where sched->cycle_time is the divisor. We have tests in parse_taprio_schedule() so that cycle_time will never be 0, and actually cycle_time is not 0 in get_cycle_time_elapsed(). The problem is that the types of divisor are different; cycle_time is s64, but the argument of div_s64_rem() is s32. syzkaller fed this input and 0x100000000 is cast to s32 to be 0. @TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME={0xc, 0x8, 0x100000000} We use s64 for cycle_time to cast it to ktime_t, so let's keep it and set max for cycle_time. While at it, we prevent overflow in setup_txtime() and add another test in parse_taprio_schedule() to check if cycle_time overflows. Also, we add a new tdc test case for this issue. [0]: divide error: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 103 Comm: kworker/1:3 Not tainted 6.5.0-rc1-00330-g60cc1f7d0605 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:div_s64_rem include/linux/math64.h:42 [inline] RIP: 0010:get_cycle_time_elapsed net/sched/sch_taprio.c:223 [inline] RIP: 0010:find_entry_to_transmit+0x252/0x7e0 net/sched/sch_taprio.c:344 Code: 3c 02 00 0f 85 5e 05 00 00 48 8b 4c 24 08 4d 8b bd 40 01 00 00 48 8b 7c 24 48 48 89 c8 4c 29 f8 48 63 f7 48 99 48 89 74 24 70 <48> f7 fe 48 29 d1 48 8d 04 0f 49 89 cc 48 89 44 24 20 49 8d 85 10 RSP: 0018:ffffc90000acf260 EFLAGS: 00010206 RAX: 177450e0347560cf RBX: 0000000000000000 RCX: 177450e0347560cf RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000100000000 RBP: 0000000000000056 R08: 0000000000000000 R09: ffffed10020a0934 R10: ffff8880105049a7 R11: ffff88806cf3a520 R12: ffff888010504800 R13: ffff88800c00d800 R14: ffff8880105049a0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0edf84f0e8 CR3: 000000000d73c002 CR4: 0000000000770ee0 PKRU: 55555554 Call Trace: get_packet_txtime net/sched/sch_taprio.c:508 [inline] taprio_enqueue_one+0x900/0xff0 net/sched/sch_taprio.c:577 taprio_enqueue+0x378/0xae0 net/sched/sch_taprio.c:658 dev_qdisc_enqueue+0x46/0x170 net/core/dev.c:3732 __dev_xmit_skb net/core/dev.c:3821 [inline] __dev_queue_xmit+0x1b2f/0x3000 net/core/dev.c:4169 dev_queue_xmit include/linux/netdevice.h:3088 [inline] neigh_resolve_output net/core/neighbour.c:1552 [inline] neigh_resolve_output+0x4a7/0x780 net/core/neighbour.c:1532 neigh_output include/net/neighbour.h:544 [inline] ip6_finish_output2+0x924/0x17d0 net/ipv6/ip6_output.c:135 __ip6_finish_output+0x620/0xaa0 net/ipv6/ip6_output.c:196 ip6_finish_output net/ipv6/ip6_output.c:207 [inline] NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip6_output+0x206/0x410 net/ipv6/ip6_output.c:228 dst_output include/net/dst.h:458 [inline] NF_HOOK.constprop.0+0xea/0x260 include/linux/netfilter.h:303 ndisc_send_skb+0x872/0xe80 net/ipv6/ndisc.c:508 ndisc_send_ns+0xb5/0x130 net/ipv6/ndisc.c:666 addrconf_dad_work+0xc14/0x13f0 net/ipv6/addrconf.c:4175 process_one_work+0x92c/0x13a0 kernel/workqueue.c:2597 worker_thread+0x60f/0x1240 kernel/workqueue.c:2748 kthread+0x2fe/0x3f0 kernel/kthread.c:389 ret_from_fork+0x2c/0x50 arch/x86/entry/entry_64.S:308 Modules linked in: Fixes: 4cfd5779bd6e ("taprio: Add support for txtime-assist mode") Reported-by: syzkaller Signed-off-by: Kuniyuki Iwashima Co-developed-by: Eric Dumazet Co-developed-by: Pedro Tammela Acked-by: Vinicius Costa Gomes Signed-off-by: David S. Miller Signed-off-by: Sasha Levin net/sched/sch_taprio.c | 15 +++++++++++-- .../tc-testing/tc-tests/qdiscs/taprio.json | 25 ++++++++++++++++++++++ 2 files changed, 38 insertions(+), 2 deletions(-) accumulated error probability: 0.00 culprit signature: eebfad7e640feb4ff06f30f34ae85f5983d565c5bb16907578b9d62d09a8e10a parent signature: 32a1bf7584f69a58af1e44585b301541909e1864d83ae84e5837f8dc458af85e revisions tested: 20, total time: 4h26m49.416527606s (build: 1h1m48.22616739s, test: 3h18m26.013482159s) first good commit: 0b45af982a4df0b14fb8669ee2a871cfdfa6a39c net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. recipients (to): ["davem@davemloft.net" "kuniyu@amazon.com" "sashal@kernel.org" "vinicius.gomes@intel.com"] recipients (cc): []