ci starts bisection 2024-09-16 01:10:58.788734884 +0000 UTC m=+87176.795080387
bisecting fixing commit since 480e035fc4c714fb5536e64ab9db04fedc89e910
building syzkaller on 7a239ce75709b01083336e0f2f44aa8a01734543
ensuring issue is reproducible on original commit 480e035fc4c714fb5536e64ab9db04fedc89e910

testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a566f971e69021fa3706f73efc639a1e1e5f43f3488f7fd7d10f57cefa1ac5be
run #0: crashed: KASAN: slab-use-after-free Read in advance_sched
run #1: crashed: KASAN: slab-use-after-free Read in advance_sched
run #2: crashed: KASAN: slab-use-after-free Read in advance_sched
run #3: crashed: KASAN: slab-use-after-free Read in advance_sched
run #4: crashed: KASAN: slab-use-after-free Read in advance_sched
run #5: crashed: KASAN: slab-use-after-free Read in advance_sched
run #6: crashed: KASAN: slab-use-after-free Read in advance_sched
run #7: crashed: KASAN: slab-use-after-free Read in advance_sched
run #8: crashed: KASAN: slab-use-after-free Read in advance_sched
run #9: crashed: KASAN: slab-use-after-free Read in advance_sched
run #10: crashed: KASAN: slab-use-after-free Read in advance_sched
run #11: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #12: crashed: KASAN: slab-use-after-free Read in advance_sched
run #13: crashed: KASAN: slab-use-after-free Read in advance_sched
run #14: crashed: KASAN: slab-use-after-free Read in advance_sched
run #15: crashed: KASAN: slab-use-after-free Read in advance_sched
run #16: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #17: crashed: KASAN: slab-use-after-free Read in advance_sched
run #18: crashed: KASAN: slab-use-after-free Read in advance_sched
run #19: crashed: KASAN: slab-use-after-free Read in advance_sched
representative crash: KASAN: slab-use-after-free Read in advance_sched, types: [KASAN]
check whether we can drop unnecessary instrumentation
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 33b6a59ca56a67893b6e5147531b095a020238e5a4ea477ec62344d737e9be60
run #0: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #1: crashed: KASAN: slab-use-after-free Read in advance_sched
run #2: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #3: crashed: KASAN: slab-use-after-free Read in advance_sched
run #4: crashed: KASAN: slab-use-after-free Read in advance_sched
run #5: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #6: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #7: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #8: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #9: crashed: KASAN: slab-use-after-free Read in taprio_dump
representative crash: KASAN: slab-use-after-free Read in taprio_dump, types: [KASAN]
the bug reproduces without the instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
kconfig minimization: base=4045 full=7986 leaves diff=2004
split chunks (needed=false): <2004>
split chunk #0 of len 2004 into 5 parts
testing without sub-chunk 1/5
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d983de3a2ca1c480d842801f70a0ad507fedaaf3dbc8565b15b347ed465b109f
run #0: crashed: KASAN: slab-use-after-free Read in advance_sched
run #1: crashed: KASAN: slab-use-after-free Read in advance_sched
run #2: crashed: KASAN: slab-use-after-free Read in advance_sched
run #3: crashed: KASAN: slab-use-after-free Read in advance_sched
run #4: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #5: crashed: KASAN: slab-use-after-free Read in advance_sched
run #6: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #7: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #8: crashed: KASAN: slab-use-after-free Read in advance_sched
run #9: crashed: KASAN: slab-use-after-free Read in taprio_dump
representative crash: KASAN: slab-use-after-free Read in advance_sched, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b913d6d55101b7f27eb68f09429c7f30629912456915f4d992837964b5b2175b
run #0: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #1: crashed: KASAN: slab-use-after-free Read in advance_sched
run #2: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #3: crashed: KASAN: slab-use-after-free Read in advance_sched
run #4: crashed: KASAN: slab-use-after-free Read in advance_sched
run #5: crashed: KASAN: slab-use-after-free Read in advance_sched
run #6: crashed: KASAN: slab-use-after-free Read in advance_sched
run #7: crashed: KASAN: slab-use-after-free Read in advance_sched
run #8: crashed: KASAN: slab-use-after-free Read in advance_sched
run #9: crashed: KASAN: slab-use-after-free Read in advance_sched
representative crash: KASAN: slab-use-after-free Read in taprio_dump, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6231611c7fd7f9d65656b98498c4f106653e4a6dbb742474a147c8bfdafee9b5
all runs: OK
false negative chance: 0.000
testing without sub-chunk 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e41aafe6cef4c5e61c87f5d1792c1973a491700e137553c9917ed7ea96a92257
run #0: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #1: crashed: KASAN: slab-use-after-free Read in advance_sched
run #2: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #3: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #4: crashed: KASAN: slab-use-after-free Read in advance_sched
run #5: crashed: KASAN: slab-use-after-free Read in advance_sched
run #6: crashed: KASAN: slab-use-after-free Read in advance_sched
run #7: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #8: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #9: crashed: KASAN: slab-use-after-free Read in taprio_dump
representative crash: KASAN: slab-use-after-free Read in taprio_dump, types: [KASAN]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
testing commit 480e035fc4c714fb5536e64ab9db04fedc89e910 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9b529f6470c14efe1b6f0c7b9ce771b2767e5cf98fd790a3172bda232bd0121f
run #0: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #1: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #2: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #3: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #4: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #5: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #6: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #7: crashed: KASAN: slab-use-after-free Read in advance_sched
run #8: crashed: KASAN: slab-use-after-free Read in advance_sched
run #9: crashed: KASAN: slab-use-after-free Read in taprio_dump
representative crash: KASAN: slab-use-after-free Read in taprio_dump, types: [KASAN]
the chunk can be dropped
minimized to 401 configs; suspects: [AX25 BRIDGE BRIDGE_NETFILTER CAN CFG80211 CHECKPOINT_RESTORE DVB_CORE FB_CORE HAMRADIO HAVE_KVM HSR IMA IMA_APPRAISE IMA_APPRAISE_MODSIG INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_USER_ACCESS INPUT_JOYSTICK INPUT_MOUSE INTEGRITY INTEGRITY_ASYMMETRIC_KEYS INTEGRITY_SIGNATURE IP6_NF_RAW IPV6_MULTIPLE_TABLES IP_NF_RAW IP_SET IP_VS 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 KALLSYMS_BASE_RELATIVE 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_COMMON KVM_COMPAT KVM_GENERIC_DIRTYLOG_READ_PROTECT KVM_GENERIC_HARDWARE_ENABLING KVM_GENERIC_MEMORY_ATTRIBUTES KVM_GENERIC_MMU_NOTIFIER KVM_GENERIC_PRIVATE_MEM KVM_HYPERV KVM_MMIO KVM_PRIVATE_MEM KVM_PROVE_MMU KVM_SW_PROTECTED_VM 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 LOGIG940_FF LOGIRUMBLEPAD2_FF LOGO LOGO_LINUX_MONO LOGO_LINUX_VGA16 LPC_ICH LWTUNNEL LWTUNNEL_BPF LZ4HC_COMPRESS LZ4_COMPRESS MAC80211 MAC80211_HAS_RC MAC80211_HWSIM MAC80211_MESH MAC80211_RC_DEFAULT_MINSTREL MAC80211_RC_MINSTREL MACSEC MACVLAN MACVTAP MAC_PARTITION MAPPING_DIRTY_HELPERS MD_RAID0 MD_RAID1 MD_RAID10 MD_RAID456 MEDIA_ANALOG_TV_SUPPORT MEDIA_ATTACH MEDIA_CONTROLLER MEDIA_CONTROLLER_DVB MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_SUPPORT_FILTER MEDIA_TUNER MEDIA_TUNER_MSI001 MEMCG_KMEM 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 MODULE_COMPRESS_NONE MODULE_SIG_KEY_TYPE_RSA MODULE_SIG_SHA256 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_BPF_LINK NETFILTER_FAMILY_ARP NETFILTER_FAMILY_BRIDGE NETFILTER_NETLINK_ACCT NETFILTER_NETLINK_GLUE_CT NETFILTER_NETLINK_OSF NETFILTER_NETLINK_QUEUE NETFILTER_SYNPROXY NETFILTER_XTABLES_COMPAT 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_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_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_CAKE NET_SCH_CBS NET_SCH_CHOKE NET_SCH_CODEL NET_SCH_DRR 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_MQPRIO_LIB 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_V3_ACL NFSD_V4 NFSD_V4_2_INTER_SSC NFSD_V4_SECURITY_LABEL NFS_FSCACHE NFS_V2 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_OVS 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_OVS NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TABLES NF_TABLES_BRIDGE NF_TABLES_INET NF_TABLES_IPV4 NF_TABLES_IPV6 NF_TABLES_NETDEV NF_TPROXY_IPV4 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 HANG LEAK UBSAN BUG], they are not needed
testing current HEAD 98f7e32f20d28ec452afb208f9cffc08448a2652
testing commit 98f7e32f20d28ec452afb208f9cffc08448a2652 gcc
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 72f457a2e79a80bae890d128559f977b6f9bcf43e78feff4a45388887714d25e
run #0: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #1: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #2: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #3: crashed: KASAN: slab-use-after-free Read in advance_sched
run #4: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #5: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #6: crashed: KASAN: slab-use-after-free Read in advance_sched
run #7: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #8: crashed: KASAN: slab-use-after-free Read in taprio_dump
run #9: crashed: KASAN: slab-use-after-free Read in taprio_dump
representative crash: KASAN: slab-use-after-free Read in taprio_dump, types: [KASAN]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 1h53m5.278557743s (build: 1h8m42.801910873s, test: 39m38.157622812s)
crash still not fixed or there were kernel test errors
commit msg: Linux 6.11
crash: KASAN: slab-use-after-free Read in taprio_dump
==================================================================
BUG: KASAN: slab-use-after-free in taprio_dump_tc_entries net/sched/sch_taprio.c:2284 [inline]
BUG: KASAN: slab-use-after-free in taprio_dump+0x79c/0xc30 net/sched/sch_taprio.c:2397
Read of size 4 at addr ffff8881151684c0 by task syz-executor.1/3564

CPU: 0 UID: 0 PID: 3564 Comm: syz-executor.1 Not tainted 6.11.0-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:93 [inline]
 dump_stack_lvl+0x231/0x330 lib/dump_stack.c:119
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0x169/0x550 mm/kasan/report.c:488
 kasan_report+0x143/0x180 mm/kasan/report.c:601
 taprio_dump_tc_entries net/sched/sch_taprio.c:2284 [inline]
 taprio_dump+0x79c/0xc30 net/sched/sch_taprio.c:2397
 tc_fill_qdisc+0x677/0x1120 net/sched/sch_api.c:952
 qdisc_notify+0x2ec/0x4b0 net/sched/sch_api.c:1053
 tc_modify_qdisc+0x1852/0x1a40 net/sched/sch_api.c:1749
 rtnetlink_rcv_msg+0x9ef/0xbb0 net/core/rtnetlink.c:6647
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7c6/0x960 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x88e/0xc40 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
 ___sys_sendmsg+0x27a/0x310 net/socket.c:2651
 __sys_sendmmsg+0x2a9/0x500 net/socket.c:2737
 __do_sys_sendmmsg net/socket.c:2766 [inline]
 __se_sys_sendmmsg net/socket.c:2763 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8dca06dda9
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:00007f8dc9bef0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f8dca19bf80 RCX: 00007f8dca06dda9
RDX: 0492492492492856 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f8dca0ba47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f8dca19bf80 R15: 00007f8dca2bfa48
 </TASK>

Allocated by task 3552:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
 __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __kmalloc_cache_noprof+0x19e/0x360 mm/slub.c:4193
 kmalloc_noprof include/linux/slab.h:681 [inline]
 kzalloc_noprof include/linux/slab.h:807 [inline]
 taprio_change+0xf31/0x3df0 net/sched/sch_taprio.c:1859
 qdisc_change net/sched/sch_api.c:1417 [inline]
 tc_modify_qdisc+0x16b2/0x1a40 net/sched/sch_api.c:1747
 rtnetlink_rcv_msg+0x9ef/0xbb0 net/core/rtnetlink.c:6647
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7c6/0x960 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x88e/0xc40 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
 ___sys_sendmsg+0x27a/0x310 net/socket.c:2651
 __sys_sendmmsg+0x2a9/0x500 net/socket.c:2737
 __do_sys_sendmmsg net/socket.c:2766 [inline]
 __se_sys_sendmmsg net/socket.c:2763 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 2292:
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2256 [inline]
 slab_free mm/slub.c:4477 [inline]
 kfree+0x12f/0x310 mm/slub.c:4598
 rcu_do_batch kernel/rcu/tree.c:2569 [inline]
 rcu_core+0xc3c/0x1470 kernel/rcu/tree.c:2843
 handle_softirqs+0x1b7/0x570 kernel/softirq.c:554
 do_softirq+0x112/0x1d0 kernel/softirq.c:455
 __local_bh_enable_ip+0x69/0x70 kernel/softirq.c:382
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 xt_replace_table+0x33e/0x760 net/netfilter/x_tables.c:1428
 __do_replace+0x1ae/0xa30 net/ipv6/netfilter/ip6_tables.c:1081
 do_replace net/ipv6/netfilter/ip6_tables.c:1158 [inline]
 do_ip6t_set_ctl+0xecd/0x1220 net/ipv6/netfilter/ip6_tables.c:1644
 nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101
 do_sock_setsockopt+0x167/0x1a0 net/socket.c:2324
 __sys_setsockopt+0x1ae/0x250 net/socket.c:2347
 __do_sys_setsockopt net/socket.c:2356 [inline]
 __se_sys_setsockopt net/socket.c:2353 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2353
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Last potentially related work creation:
 kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
 __call_rcu_common kernel/rcu/tree.c:3106 [inline]
 call_rcu+0x159/0x8e0 kernel/rcu/tree.c:3210
 taprio_change+0x229f/0x3df0 net/sched/sch_taprio.c:1968
 qdisc_change net/sched/sch_api.c:1417 [inline]
 tc_modify_qdisc+0x16b2/0x1a40 net/sched/sch_api.c:1747
 rtnetlink_rcv_msg+0x9ef/0xbb0 net/core/rtnetlink.c:6647
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7c6/0x960 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x88e/0xc40 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
 ___sys_sendmsg+0x27a/0x310 net/socket.c:2651
 __sys_sendmmsg+0x2a9/0x500 net/socket.c:2737
 __do_sys_sendmmsg net/socket.c:2766 [inline]
 __se_sys_sendmmsg net/socket.c:2763 [inline]
 __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888115168400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 192 bytes inside of
 freed 512-byte region [ffff888115168400, ffff888115168600)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115168
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x200000000000040(head|node=0|zone=2)
page_type: 0xfdffffff(slab)
raw: 0200000000000040 ffff888100041c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001fdffffff 0000000000000000
head: 0200000000000040 ffff888100041c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001fdffffff 0000000000000000
head: 0200000000000002 ffffea0004545a01 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1675, tgid 1675 (acpid), ts 7843430572, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x10f/0x130 mm/page_alloc.c:1500
 prep_new_page mm/page_alloc.c:1508 [inline]
 get_page_from_freelist+0x37f4/0x3920 mm/page_alloc.c:3446
 __alloc_pages_noprof+0x256/0x670 mm/page_alloc.c:4702
 __alloc_pages_node_noprof include/linux/gfp.h:269 [inline]
 alloc_pages_node_noprof include/linux/gfp.h:296 [inline]
 alloc_slab_page+0x5f/0x120 mm/slub.c:2325
 allocate_slab+0x5d/0x290 mm/slub.c:2488
 new_slab mm/slub.c:2541 [inline]
 ___slab_alloc+0xa7f/0x11d0 mm/slub.c:3727
 __slab_alloc mm/slub.c:3817 [inline]
 __slab_alloc_node mm/slub.c:3870 [inline]
 slab_alloc_node mm/slub.c:4029 [inline]
 __do_kmalloc_node mm/slub.c:4161 [inline]
 __kmalloc_noprof+0x25a/0x440 mm/slub.c:4174
 kmalloc_noprof include/linux/slab.h:685 [inline]
 kzalloc_noprof include/linux/slab.h:807 [inline]
 tomoyo_init_log+0x196e/0x1e70 security/tomoyo/audit.c:275
 tomoyo_supervisor+0x369/0x11a0 security/tomoyo/common.c:2089
 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
 tomoyo_path_number_perm+0x56f/0x790 security/tomoyo/file.c:734
 security_path_chmod+0xe6/0x140 security/security.c:1955
 chmod_common+0x1c9/0x4c0 fs/open.c:649
 vfs_fchmod fs/open.c:670 [inline]
 __do_sys_fchmod fs/open.c:679 [inline]
 __se_sys_fchmod fs/open.c:673 [inline]
 __x64_sys_fchmod+0xf8/0x160 fs/open.c:673
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x8d/0x190 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888115168380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888115168400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888115168480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff888115168500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888115168580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================