ci starts bisection 2023-12-16 20:47:11.438124487 +0000 UTC m=+261560.787811061 bisecting cause commit starting from 17cb8a20bde66a520a2ca7aad1063e1ce7382240 building syzkaller on 3222d10cbe77bbedb5a7c455e5bcb6b7081a63b7 ensuring issue is reproducible on original commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c2f21b92d38ee3e3da832bc8a25a5da093f1569a46ee05cfd860b921852a948b all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] check whether we can drop unnecessary instrumentation disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e628c07f5c77fc933be4f327e37533ec5291eb270528b6240523c043e70d7c9c all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=3923 full=7681 leaves diff=2009 split chunks (needed=false): <2009> split chunk #0 of len 2009 into 5 parts testing without sub-chunk 1/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 24e37f859c04e1b64f2db57082c97b59226556adf1beacfaaf4c6287a2e184bf all runs: OK false negative chance: 0.000 testing without sub-chunk 2/5 disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f76f48dc72e90759747685be717087509372ad3356c0f520915c0f08cf5de74e all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [BUG LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77d5790f29cfaf3577926e415b5d9109a1136fef8c2828c5ccda0604c2abe994 all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, 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 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3a1251091c896b49550574594a517c84e3fb8e4cb8c249d34e829d45fde2c37c all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit 17cb8a20bde66a520a2ca7aad1063e1ce7382240 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78abcb9a075fd500b80d1231533a00e497057847df659ab2bb6f65e891ccc90d all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] the chunk can be dropped minimized to 402 configs; suspects: [6LOWPAN 6LOWPAN_GHC_EXT_HDR_DEST 6LOWPAN_GHC_EXT_HDR_FRAG 6LOWPAN_GHC_EXT_HDR_HOP 6LOWPAN_GHC_EXT_HDR_ROUTE 6LOWPAN_GHC_ICMPV6 6LOWPAN_GHC_UDP 6LOWPAN_NHC 6LOWPAN_NHC_DEST 6LOWPAN_NHC_FRAGMENT 6LOWPAN_NHC_HOP 6LOWPAN_NHC_IPV6 6LOWPAN_NHC_MOBILITY 6LOWPAN_NHC_ROUTING 6LOWPAN_NHC_UDP 6PACK 842_COMPRESS 842_DECOMPRESS 9P_FSCACHE 9P_FS_POSIX_ACL 9P_FS_SECURITY ACORN_PARTITION ACORN_PARTITION_ADFS ACORN_PARTITION_CUMANA ACORN_PARTITION_EESOX ACORN_PARTITION_ICS ACORN_PARTITION_POWERTEC ACORN_PARTITION_RISCIX ACPI_NFIT ACPI_PLATFORM_PROFILE ACPI_THERMAL_LIB ADDRESS_MASKING ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_CPU_PASID ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASYNC_CORE ASYNC_MEMCPY ASYNC_PQ ASYNC_RAID6_RECOV ASYNC_TX_DMA ASYNC_XOR ATARI_PARTITION ATA_GENERIC ATA_OVER_ETH ATH10K ATH10K_CE ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_DEBUGFS ATH9K_DYNACK ATH9K_HTC ATH9K_HTC_DEBUGFS ATH9K_HW ATH9K_PCI ATH9K_PCOEM ATH9K_RFKILL ATH_COMMON ATM ATM_BR2684 ATM_CLIP ATM_DRIVERS ATM_LANE ATM_MPOA ATM_TCP AUXILIARY_BUS AX25 AX25_DAMA_SLAVE AX88796B_PHY BAREUDP BATMAN_ADV BATMAN_ADV_BATMAN_V BATMAN_ADV_BLA BATMAN_ADV_DAT BATMAN_ADV_MCAST BATMAN_ADV_NC BCACHE BCACHEFS_DEBUG BCACHEFS_FS BCACHEFS_QUOTA BCACHEFS_SIX_OPTIMISTIC_SPIN BCMA BCMA_HOST_PCI_POSSIBLE BEFS_FS BFQ_CGROUP_DEBUG BFQ_GROUP_IOSCHED BFS_FS BIG_KEYS BLK_CGROUP_PUNT_BIO BLK_CGROUP_RWSTAT BLK_DEBUG_FS_ZONED BLK_DEV_BSGLIB BLK_DEV_INTEGRITY BLK_DEV_INTEGRITY_T10 BLK_DEV_NBD BLK_DEV_NULL_BLK BLK_DEV_NULL_BLK_FAULT_INJECTION BLK_DEV_NVME BLK_DEV_PMEM BLK_DEV_RAM BLK_DEV_RNBD BLK_DEV_RNBD_CLIENT BLK_DEV_THROTTLING BLK_DEV_ZONED BLK_ICQ BLK_INLINE_ENCRYPTION BLK_INLINE_ENCRYPTION_FALLBACK BLK_WBT BLK_WBT_MQ BONDING BOOT_VESA_SUPPORT BPF_EVENTS BPF_JIT BPF_JIT_ALWAYS_ON BPF_JIT_DEFAULT_ON BPF_LSM BPF_PRELOAD BPF_PRELOAD_UMD BPF_STREAM_PARSER BPF_SYSCALL BPQETHER BRIDGE BRIDGE_CFM BRIDGE_EBT_802_3 BRIDGE_EBT_AMONG BRIDGE_EBT_ARP BRIDGE_EBT_ARPREPLY BRIDGE_EBT_BROUTE BRIDGE_EBT_DNAT BRIDGE_EBT_IP BRIDGE_EBT_IP6 BRIDGE_EBT_LIMIT BRIDGE_EBT_LOG BRIDGE_EBT_MARK BRIDGE_EBT_MARK_T BRIDGE_EBT_NFLOG BRIDGE_EBT_PKTTYPE BRIDGE_EBT_REDIRECT BRIDGE_EBT_SNAT BRIDGE_EBT_STP BRIDGE_EBT_T_FILTER BRIDGE_EBT_T_NAT BRIDGE_EBT_VLAN BRIDGE_IGMP_SNOOPING BRIDGE_MRP BRIDGE_NF_EBTABLES BRIDGE_VLAN_FILTERING BSD_DISKLABEL BSD_PROCESS_ACCT_V3 BT BTRFS_ASSERT BTRFS_FS BTRFS_FS_POSIX_ACL BTRFS_FS_REF_VERIFY BTT BT_6LOWPAN BT_ATH3K BT_BCM BT_BNEP BT_BNEP_MC_FILTER BT_BNEP_PROTO_FILTER BT_BREDR BT_CMTP BT_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_BCM BT_HCIBTUSB_MTK BT_HCIBTUSB_POLL_SYNC BT_HCIBTUSB_RTL BT_HCIUART BT_HCIUART_3WIRE BT_HCIUART_AG6XX BT_HCIUART_BCSP BT_HCIUART_H4 BT_HCIUART_LL BT_HCIUART_MRVL BT_HCIUART_QCA BT_HCIUART_SERDEV BT_HCIVHCI BT_HIDP BT_HS BT_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MSFTEXT BT_MTK BT_QCA BT_RFCOMM BT_RFCOMM_TTY BT_RTL CACHEFILES CAIF CAIF_DEBUG CAIF_DRIVERS CAIF_NETDEV CAIF_TTY CAIF_USB CAIF_VIRTIO CAN CAN_8DEV_USB CAN_BCM CAN_CALC_BITTIMING CAN_DEV CAN_EMS_USB CAN_GS_USB CAN_GW CAN_IFI_CANFD CAN_ISOTP CAN_J1939 CAN_KVASER_USB CAN_MCBA_USB CAN_NETLINK CAN_PEAK_USB CAN_RAW CAN_RX_OFFLOAD CAN_SLCAN CAN_VCAN CAN_VXCAN CAPI_TRACE CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC CC_STRINGOP_OVERFLOW CEC_CORE CEPH_FS CEPH_FSCACHE CEPH_FS_POSIX_ACL CEPH_LIB CEPH_LIB_USE_DNS_RESOLVER CFG80211 CFG80211_CRDA_SUPPORT CFG80211_DEBUGFS CFG80211_DEFAULT_PS CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS CFG80211_WEXT CFS_BANDWIDTH CGROUP_BPF CHARGER_BQ24190 CHARGER_ISP1704 CHR_DEV_ST CIFS CIFS_ALLOW_INSECURE_LEGACY CIFS_DEBUG CIFS_DFS_UPCALL CIFS_FSCACHE CIFS_POSIX CIFS_SMB_DIRECT CIFS_SWN_UPCALL CIFS_UPCALL CIFS_XATTR CLOSURES CLS_U32_MARK CLS_U32_PERF CMA CMA_SIZE_SEL_MBYTES CMDLINE_PARTITION COMEDI COMEDI_DT9812 COMEDI_NI_USB6501 COMEDI_USBDUX COMEDI_USBDUXFAST COMEDI_USBDUXSIGMA COMEDI_USB_DRIVERS COMEDI_VMK80XX COMPAT_NETLINK_MESSAGES COUNTER CRAMFS CRAMFS_BLOCKDEV CRAMFS_MTD CRC4 CRC64 CRC64_ROCKSOFT CRC7 CRC8 CRC_ITU_T CRC_T10DIF CRYPTO_ADIANTUM CRYPTO_AEGIS128 CRYPTO_AEGIS128_AESNI_SSE2 CRYPTO_AES_NI_INTEL CRYPTO_AES_TI CRYPTO_ANSI_CPRNG CRYPTO_ANUBIS CRYPTO_ARC4 CRYPTO_ARCH_HAVE_LIB_BLAKE2S CRYPTO_ARCH_HAVE_LIB_CHACHA CRYPTO_ARCH_HAVE_LIB_CURVE25519 CRYPTO_ARCH_HAVE_LIB_POLY1305 CRYPTO_ARIA CRYPTO_ARIA_AESNI_AVX_X86_64 CRYPTO_BLAKE2B CRYPTO_BLAKE2S_X86 CRYPTO_BLOWFISH CRYPTO_BLOWFISH_COMMON CRYPTO_BLOWFISH_X86_64 CRYPTO_CAMELLIA CRYPTO_CAMELLIA_AESNI_AVX2_X86_64 CRYPTO_CAMELLIA_AESNI_AVX_X86_64 CRYPTO_CAMELLIA_X86_64 CRYPTO_CAST5 CRYPTO_CAST5_AVX_X86_64 CRYPTO_CAST6 CRYPTO_CAST6_AVX_X86_64 CRYPTO_CAST_COMMON CRYPTO_CHACHA20 CRYPTO_CHACHA20POLY1305 CRYPTO_CHACHA20_X86_64 CRYPTO_CRC32 CRYPTO_CRC32C_INTEL CRYPTO_CRC32_PCLMUL CRYPTO_CRC64_ROCKSOFT CRYPTO_CRCT10DIF CRYPTO_CRCT10DIF_PCLMUL CRYPTO_CRYPTD CRYPTO_CTS CRYPTO_CURVE25519 CRYPTO_CURVE25519_X86 CRYPTO_DEFLATE CRYPTO_DES CRYPTO_DES3_EDE_X86_64 CRYPTO_DEV_CCP CRYPTO_DEV_CCP_DD CRYPTO_DEV_PADLOCK CRYPTO_DEV_PADLOCK_AES CRYPTO_DEV_PADLOCK_SHA CRYPTO_DEV_QAT CRYPTO_DEV_QAT_C3XXX CRYPTO_DEV_QAT_C3XXXVF CRYPTO_DEV_QAT_C62X CRYPTO_DEV_QAT_C62XVF CRYPTO_DEV_QAT_DH895xCC CRYPTO_DEV_QAT_DH895xCCVF CRYPTO_DEV_VIRTIO CRYPTO_DH CRYPTO_DRBG_CTR CRYPTO_DRBG_HASH CRYPTO_ECC CRYPTO_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_KDF800108_CTR CRYPTO_KEYWRAP CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LRW CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT CRYPTO_POLY1305 CRYPTO_POLY1305_X86_64 CRYPTO_POLYVAL CRYPTO_POLYVAL_CLMUL_NI CRYPTO_RMD160 CRYPTO_SEED CRYPTO_SERPENT CRYPTO_SERPENT_AVX2_X86_64 CRYPTO_SERPENT_AVX_X86_64 CRYPTO_SERPENT_SSE2_X86_64 CRYPTO_SHA1_SSSE3 CRYPTO_SHA256_SSSE3 CRYPTO_SHA512_SSSE3 CRYPTO_SIMD CRYPTO_SM2 CRYPTO_SM3 CRYPTO_SM3_AVX_X86_64 CRYPTO_SM4 CRYPTO_SM4_AESNI_AVX2_X86_64 CRYPTO_SM4_AESNI_AVX_X86_64 CRYPTO_SM4_GENERIC CRYPTO_STREEBOG CRYPTO_TEA CRYPTO_TWOFISH CRYPTO_TWOFISH_AVX_X86_64 CRYPTO_TWOFISH_COMMON CRYPTO_TWOFISH_X86_64 CRYPTO_TWOFISH_X86_64_3WAY CRYPTO_USER CRYPTO_USER_API CRYPTO_USER_API_AEAD CRYPTO_USER_API_ENABLE_OBSOLETE CRYPTO_USER_API_HASH CRYPTO_USER_API_RNG CRYPTO_USER_API_SKCIPHER CRYPTO_VMAC CRYPTO_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CUSE CYPRESS_FIRMWARE DAMON DAMON_DBGFS DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEFAULT_PFIFO_FAST DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX DIMLIB DLN2_ADC DMABUF_HEAPS DMABUF_HEAPS_CMA DMABUF_HEAPS_SYSTEM DMABUF_MOVE_NOTIFY DMA_CMA DMA_ENGINE_RAID DM_AUDIT DM_BIO_PRISON DM_BUFIO DM_CACHE DM_CACHE_SMQ DM_CLONE DM_CRYPT DM_FLAKEY DM_INTEGRITY DM_MULTIPATH DM_MULTIPATH_QL DM_MULTIPATH_ST DM_PERSISTENT_DATA DM_RAID DM_SNAPSHOT DM_THIN_PROVISIONING DM_UEVENT DM_VERITY DM_VERITY_FEC DM_WRITECACHE DM_ZONED DRAGONRISE_FF DRM DRM_BOCHS DRM_BUDDY ENCRYPTED_KEYS EXTCON FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ ISDN ISDN_CAPI LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MTD NET_CLS_U32 NET_SCH_DEFAULT PARTITION_ADVANCED RFKILL SERIAL_DEV_BUS TLS TLS_DEVICE TRANSPARENT_HUGEPAGE TRUSTED_KEYS USB_GADGET USB_PHY VLAN_8021Q WANT_COMPAT_NETLINK_MESSAGES WEXT_CORE WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ATH X86_X32_ABI ZONE_DEVICE] disabling configs for [HANG LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP], they are not needed picked [v6.6 v6.5 v6.4 v6.2 v6.0 v5.18 v5.16 v5.14 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 29 release tags testing release v6.6 testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ce8f264bb641f655151a1fc908e86843229de87df25f49f452c05dea65b39bdd all runs: OK false negative chance: 0.000 # git bisect start 17cb8a20bde66a520a2ca7aad1063e1ce7382240 ffc253263a1375a65fa6c9f62a893e9767fbebfa Bisecting: 12916 revisions left to test after this (roughly 14 steps) [e392ea4d4d00880bf94550151b1ace4f88a4b17a] Merge tag 's390-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux testing commit e392ea4d4d00880bf94550151b1ace4f88a4b17a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 515e6ee95e0798611b9b2a77f3b848e2a603b00130472369e4bf984e6949db0c all runs: OK false negative chance: 0.000 # git bisect good e392ea4d4d00880bf94550151b1ace4f88a4b17a Bisecting: 6455 revisions left to test after this (roughly 13 steps) [3cfdaa8ef237a79fe7b874292deac39114402610] Merge branch 'next' of https://git.linaro.org/people/jens.wiklander/linux-tee.git testing commit 3cfdaa8ef237a79fe7b874292deac39114402610 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d571deb270a630dc430c683c1b44ab202ae0f1d6e07547bca2088e98a2ca5e33 all runs: OK false negative chance: 0.000 # git bisect good 3cfdaa8ef237a79fe7b874292deac39114402610 Bisecting: 3609 revisions left to test after this (roughly 12 steps) [d50ed4e4d9f57ab21e4e48213fba8dbc24b467e6] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git testing commit d50ed4e4d9f57ab21e4e48213fba8dbc24b467e6 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 39003da5441da17dc7867f197156ab91910477e4f4afa2b2c53163a5cb868bf6 all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] # git bisect bad d50ed4e4d9f57ab21e4e48213fba8dbc24b467e6 Bisecting: 1465 revisions left to test after this (roughly 11 steps) [67a4a7a3846651d18a4a82406a835a7aea6030dc] Merge branch 'master' of git://linuxtv.org/mchehab/media-next.git testing commit 67a4a7a3846651d18a4a82406a835a7aea6030dc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25c10b7e7461fee15825531c9eb2487f39c933c83f9f17a308c727f7724e3a5b all runs: OK false negative chance: 0.000 # git bisect good 67a4a7a3846651d18a4a82406a835a7aea6030dc Bisecting: 732 revisions left to test after this (roughly 10 steps) [8857034184538ca92b0e029f6f56e5e04f518ad2] net: rswitch: Use unsigned int for desc related array index testing commit 8857034184538ca92b0e029f6f56e5e04f518ad2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 918f796db513349dfe920ff16ca33ed5523692c0ebaf9f8b492d598ab9637bbe all runs: OK false negative chance: 0.000 # git bisect good 8857034184538ca92b0e029f6f56e5e04f518ad2 Bisecting: 436 revisions left to test after this (roughly 9 steps) [5dcdf3f192ec4bd2967d052c30bde194d7fe042d] Merge branch 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git testing commit 5dcdf3f192ec4bd2967d052c30bde194d7fe042d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6b55e1283fa237e4f442ed47f98ca22b25cc33bad7cab7ad91db9dceb5d846f0 all runs: OK false negative chance: 0.000 # git bisect good 5dcdf3f192ec4bd2967d052c30bde194d7fe042d Bisecting: 262 revisions left to test after this (roughly 8 steps) [dd5027c3326ebc9f442ac41d3220f907a9ae0c27] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git testing commit dd5027c3326ebc9f442ac41d3220f907a9ae0c27 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 98831f3087cbf8684c49564dcd42dea0a128491ea9ef71fc7fe178a7ec972f76 all runs: OK false negative chance: 0.000 # git bisect good dd5027c3326ebc9f442ac41d3220f907a9ae0c27 Bisecting: 128 revisions left to test after this (roughly 7 steps) [379872288fd353119d15c65f11d20a219e09d6b2] Merge tag 'mt76-for-kvalo-2023-12-06' of https://github.com/nbd168/wireless testing commit 379872288fd353119d15c65f11d20a219e09d6b2 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: df2db372b23d1083276759a328fce5d510d8c6dd36d0eced435d5f4bea67f8fa all runs: OK false negative chance: 0.000 # git bisect good 379872288fd353119d15c65f11d20a219e09d6b2 Bisecting: 64 revisions left to test after this (roughly 6 steps) [a16144bda9c332079b6a1db52725e9c22007114d] crypto: atmel - Remove cfb and ofb testing commit a16144bda9c332079b6a1db52725e9c22007114d gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 243ffd30e3c3e4e80173e79b111d17291f82f030ef02c29714a0c5465490cad6 all runs: OK false negative chance: 0.000 # git bisect good a16144bda9c332079b6a1db52725e9c22007114d Bisecting: 28 revisions left to test after this (roughly 5 steps) [223f6fd2b9d0b01aa737df9a96aeea80face3f94] Merge branch 'nand/next' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git testing commit 223f6fd2b9d0b01aa737df9a96aeea80face3f94 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e63dd5fbe09a811ac2aae0eff8a9ff1d5fb50838ab3041904a9f86f8a918e84c all runs: OK false negative chance: 0.000 # git bisect good 223f6fd2b9d0b01aa737df9a96aeea80face3f94 Bisecting: 14 revisions left to test after this (roughly 4 steps) [412ac51ce0b8c5581b6ff57fff6501e905a5471f] crypto: cfb,ofb - Remove cfb and ofb testing commit 412ac51ce0b8c5581b6ff57fff6501e905a5471f gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 74d411c748fd2a7950f986796a4f234c1204d00aa20b42cc84dc6ef1fd7bbcd4 all runs: OK false negative chance: 0.000 # git bisect good 412ac51ce0b8c5581b6ff57fff6501e905a5471f Bisecting: 7 revisions left to test after this (roughly 3 steps) [53919a968b43648822f2d35b6cafacd3950238cc] mtd: spi-nor: micron-st: enable die erase for multi die flashes testing commit 53919a968b43648822f2d35b6cafacd3950238cc gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c961e375f259bf68c65ba4155139ec47367771fc800ad72bb750bb9693689913 all runs: OK false negative chance: 0.000 # git bisect good 53919a968b43648822f2d35b6cafacd3950238cc Bisecting: 3 revisions left to test after this (roughly 2 steps) [99bd99d3e3a7f73c1c01ef510d48730b3bdd2c4a] crypto: algif_skcipher - Fix stream cipher chaining testing commit 99bd99d3e3a7f73c1c01ef510d48730b3bdd2c4a gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78e4478fef4df35b71158479d2e45179a6302721b5602896d75955f412853ce8 all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] # git bisect bad 99bd99d3e3a7f73c1c01ef510d48730b3bdd2c4a Bisecting: 1 revision left to test after this (roughly 1 step) [662ea18d089ba6fa02859fbd64f2aa78d88c6648] crypto: skcipher - Make use of internal state testing commit 662ea18d089ba6fa02859fbd64f2aa78d88c6648 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 54ad16acf12250f9c982bd35ab6014f2426e612cd5090b339476ccd2d8f0870a all runs: OK false negative chance: 0.000 # git bisect good 662ea18d089ba6fa02859fbd64f2aa78d88c6648 Bisecting: 0 revisions left to test after this (roughly 0 steps) [47309ea1359115125d9cab17a279c8df72b47235] crypto: arc4 - Add internal state testing commit 47309ea1359115125d9cab17a279c8df72b47235 gcc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 68d43e02983e96f35ebb3059aef7bfa6f15da4de5d7322c764e70d9e323345e3 all runs: crashed: KASAN: slab-out-of-bounds Read in arc4_crypt representative crash: KASAN: slab-out-of-bounds Read in arc4_crypt, types: [KASAN] # git bisect bad 47309ea1359115125d9cab17a279c8df72b47235 47309ea1359115125d9cab17a279c8df72b47235 is the first bad commit commit 47309ea1359115125d9cab17a279c8df72b47235 Author: Herbert Xu Date: Tue Nov 28 14:52:57 2023 +0800 crypto: arc4 - Add internal state The arc4 algorithm has always had internal state. It's been buggy from day one in that the state has been stored in the shared tfm object. That means two users sharing the same tfm will end up affecting each other's output, or worse, they may end up with the same output. Fix this by declaring an internal state and storing the state there instead of within the tfm context. Signed-off-by: Herbert Xu crypto/arc4.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: 68d43e02983e96f35ebb3059aef7bfa6f15da4de5d7322c764e70d9e323345e3 parent signature: 54ad16acf12250f9c982bd35ab6014f2426e612cd5090b339476ccd2d8f0870a revisions tested: 23, total time: 9h40m10.625619468s (build: 6h5m31.524955489s, test: 3h16m40.104149408s) first bad commit: 47309ea1359115125d9cab17a279c8df72b47235 crypto: arc4 - Add internal state recipients (to): ["davem@davemloft.net" "herbert@gondor.apana.org.au" "herbert@gondor.apana.org.au" "linux-crypto@vger.kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: KASAN: slab-out-of-bounds Read in arc4_crypt "syz-executor.0" (2374) uses obsolete ecb(arc4) skcipher ================================================================== BUG: KASAN: slab-out-of-bounds in arc4_crypt+0x2a1/0x4e0 lib/crypto/arc4.c:46 Read of size 4 at addr ffff88817a8a6ee0 by task syz-executor.0/2374 CPU: 1 PID: 2374 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x3d/0x60 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 arc4_crypt+0x2a1/0x4e0 lib/crypto/arc4.c:46 crypto_arc4_crypt+0x3e/0x50 crypto/arc4.c:37 crypto_lskcipher_crypt_sg+0x214/0x400 crypto/lskcipher.c:229 _skcipher_recvmsg crypto/algif_skcipher.c:138 [inline] skcipher_recvmsg+0x932/0xcd0 crypto/algif_skcipher.c:157 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg+0xcd/0x160 net/socket.c:1066 ____sys_recvmsg+0x1b6/0x5d0 net/socket.c:2803 ___sys_recvmsg+0xe3/0x150 net/socket.c:2845 __sys_recvmsg+0xe3/0x180 net/socket.c:2875 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7fd9b767cba9 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:00007fd9b83a80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007fd9b779bf80 RCX: 00007fd9b767cba9 RDX: 0000000000000000 RSI: 00000000200005c0 RDI: 0000000000000004 RBP: 00007fd9b76c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000006 R14: 00007fd9b779bf80 R15: 00007fff914525e8 Allocated by task 78: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1007 [inline] __kmalloc+0x60/0x160 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] acpi_os_allocate_zeroed include/acpi/platform/aclinuxex.h:57 [inline] acpi_ns_get_normalized_pathname+0x45/0x90 drivers/acpi/acpica/nsnames.c:306 acpi_ns_evaluate+0x1ab/0xbb0 drivers/acpi/acpica/nseval.c:96 acpi_evaluate_object+0x311/0x8d0 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0xc8/0x1b0 drivers/acpi/utils.c:260 acpi_bus_get_status_handle drivers/acpi/bus.c:82 [inline] acpi_bus_get_status+0x154/0x2b0 drivers/acpi/bus.c:111 acpi_bus_attach+0xc4/0xa10 drivers/acpi/scan.c:2189 device_for_each_child+0xe9/0x150 drivers/base/core.c:3954 acpi_dev_for_each_child+0x76/0xa0 drivers/acpi/bus.c:1112 acpi_bus_attach+0x762/0xa10 drivers/acpi/scan.c:2231 device_for_each_child+0xe9/0x150 drivers/base/core.c:3954 acpi_dev_for_each_child+0x76/0xa0 drivers/acpi/bus.c:1112 acpi_bus_attach+0x762/0xa10 drivers/acpi/scan.c:2231 device_for_each_child+0xe9/0x150 drivers/base/core.c:3954 acpi_dev_for_each_child+0x76/0xa0 drivers/acpi/bus.c:1112 acpi_bus_attach+0x762/0xa10 drivers/acpi/scan.c:2231 device_for_each_child+0xe9/0x150 drivers/base/core.c:3954 acpi_dev_for_each_child+0x76/0xa0 drivers/acpi/bus.c:1112 acpi_bus_attach+0x762/0xa10 drivers/acpi/scan.c:2231 acpi_bus_scan+0xad/0x400 drivers/acpi/scan.c:2497 acpi_scan_init+0x1ea/0x630 drivers/acpi/scan.c:2656 acpi_init+0x37b/0x870 drivers/acpi/bus.c:1417 do_one_initcall+0xcf/0x3c0 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x509/0x850 init/main.c:1551 kernel_init+0x1a/0x1c0 init/main.c:1441 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826 slab_free mm/slub.c:3809 [inline] kmem_cache_free+0xe9/0x450 mm/slub.c:3831 kernfs_put fs/kernfs/dir.c:569 [inline] kernfs_put+0x1f4/0x330 fs/kernfs/dir.c:538 kernfs_remove_by_name_ns+0xe3/0x130 fs/kernfs/dir.c:1674 bus_remove_driver+0xe3/0x290 drivers/base/bus.c:733 pci_unregister_driver+0x25/0x260 drivers/pci/pci-driver.c:1471 agp_amd64_init+0xdc/0x130 drivers/char/agp/amd64-agp.c:765 do_one_initcall+0xcf/0x3c0 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x509/0x850 init/main.c:1551 kernel_init+0x1a/0x1c0 init/main.c:1441 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Second to last potentially related work creation: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522 ____kasan_slab_free mm/kasan/common.c:236 [inline] ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1800 [inline] slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826 slab_free mm/slub.c:3809 [inline] kmem_cache_free+0xe9/0x450 mm/slub.c:3831 acpi_os_release_object+0x9/0x10 drivers/acpi/osl.c:1621 acpi_ps_delete_parse_tree+0x72/0xb0 drivers/acpi/acpica/pswalk.c:88 acpi_ps_complete_this_op+0x5a0/0x9d0 drivers/acpi/acpica/psparse.c:277 acpi_ps_complete_op+0x8e/0xa60 drivers/acpi/acpica/psobject.c:451 acpi_ps_parse_loop+0x44a/0x1b10 drivers/acpi/acpica/psloop.c:552 acpi_ps_parse_aml+0x195/0xa00 drivers/acpi/acpica/psparse.c:475 acpi_ps_execute_method+0x4b9/0xa10 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x670/0xbb0 drivers/acpi/acpica/nseval.c:205 acpi_ut_evaluate_object+0xbc/0x410 drivers/acpi/acpica/uteval.c:60 acpi_rs_get_method_data+0x72/0xd0 drivers/acpi/acpica/rsutils.c:650 acpi_walk_resources+0xf7/0x170 drivers/acpi/acpica/rsxface.c:616 acpi_pci_link_get_current+0x18d/0x360 drivers/acpi/pci_link.c:256 acpi_pci_link_set+0x4f7/0x980 drivers/acpi/pci_link.c:362 acpi_pci_link_allocate drivers/acpi/pci_link.c:584 [inline] acpi_pci_link_allocate_irq+0x259/0xa90 drivers/acpi/pci_link.c:630 acpi_pci_irq_enable+0x213/0x5f0 drivers/acpi/pci_irq.c:426 do_pci_enable_device+0x178/0x290 drivers/pci/pci.c:1955 pci_enable_device_flags+0x1bc/0x2a0 drivers/pci/pci.c:2040 virtio_pci_probe+0x177/0x2d0 drivers/virtio/virtio_pci_common.c:539 local_pci_probe+0xcf/0x170 drivers/pci/pci-driver.c:324 pci_call_probe drivers/pci/pci-driver.c:392 [inline] __pci_device_probe drivers/pci/pci-driver.c:417 [inline] pci_device_probe+0x22c/0x690 drivers/pci/pci-driver.c:460 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x1bf/0xb20 drivers/base/dd.c:658 __driver_probe_device+0x187/0x440 drivers/base/dd.c:800 driver_probe_device+0x45/0x110 drivers/base/dd.c:830 __driver_attach+0x1d1/0x490 drivers/base/dd.c:1216 bus_for_each_dev+0x101/0x180 drivers/base/bus.c:368 bus_add_driver+0x298/0x570 drivers/base/bus.c:673 driver_register+0x12f/0x450 drivers/base/driver.c:246 do_one_initcall+0xcf/0x3c0 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x509/0x850 init/main.c:1551 kernel_init+0x1a/0x1c0 init/main.c:1441 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 The buggy address belongs to the object at ffff88817a8a6800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 1024 bytes to the right of allocated 736-byte region [ffff88817a8a6800, ffff88817a8a6ae0) The buggy address belongs to the physical page: page:ffffea0005ea2800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17a8a0 head:ffffea0005ea2800 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x100000000000840(slab|head|node=0|zone=2) page_type: 0xffffffff() raw: 0100000000000840 ffff888100041dc0 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1337, tgid 1337 (start-stop-daem), ts 6218472491, free_ts 5663739182 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x27f/0x2f0 mm/page_alloc.c:1537 prep_new_page mm/page_alloc.c:1544 [inline] get_page_from_freelist+0x653/0x40c0 mm/page_alloc.c:3312 __alloc_pages+0x1d0/0x470 mm/page_alloc.c:4568 alloc_pages_mpol+0x175/0x4a0 mm/mempolicy.c:2133 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab+0x24b/0x360 mm/slub.c:2017 new_slab mm/slub.c:2070 [inline] ___slab_alloc+0x8ce/0x10e0 mm/slub.c:3223 __slab_alloc.constprop.0+0x4d/0x90 mm/slub.c:3322 __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x150/0x350 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0x4f/0x160 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] tomoyo_init_log+0x11bb/0x1ee0 security/tomoyo/audit.c:275 tomoyo_supervisor+0x2a7/0xc40 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x16c/0x1d0 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0xaf6/0x1db0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security security/tomoyo/tomoyo.c:101 [inline] tomoyo_bprm_check_security+0x109/0x170 security/tomoyo/tomoyo.c:91 security_bprm_check+0x4f/0x70 security/security.c:1103 search_binary_handler fs/exec.c:1725 [inline] exec_binprm fs/exec.c:1779 [inline] bprm_execve fs/exec.c:1854 [inline] bprm_execve+0x5e4/0x14d0 fs/exec.c:1810 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1137 [inline] free_unref_page_prepare+0x562/0xbd0 mm/page_alloc.c:2347 free_unref_page+0x33/0x350 mm/page_alloc.c:2487 free_contig_range+0xa1/0x150 mm/page_alloc.c:6536 destroy_args+0x7cb/0xa40 mm/debug_vm_pgtable.c:1028 debug_vm_pgtable+0x19d8/0x2a80 mm/debug_vm_pgtable.c:1408 do_one_initcall+0xcf/0x3c0 init/main.c:1236 do_initcall_level init/main.c:1298 [inline] do_initcalls init/main.c:1314 [inline] do_basic_setup init/main.c:1333 [inline] kernel_init_freeable+0x509/0x850 init/main.c:1551 kernel_init+0x1a/0x1c0 init/main.c:1441 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Memory state around the buggy address: ffff88817a8a6d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88817a8a6e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88817a8a6e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88817a8a6f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88817a8a6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================