ci starts bisection 2025-05-24 03:16:32.918035579 +0000 UTC m=+115.083834612 bisecting cause commit starting from 176e917e010cb7dcc605f11d2bc33f304292482b building syzkaller on f8cc0c832b122cdf7a643d6965200c9cbb0a92a4 ensuring issue is reproducible on original commit 176e917e010cb7dcc605f11d2bc33f304292482b testing commit 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 9fb094be500dc49f0da7f1805976db0b8605b1da47be4e61a6b10c1b8c23f3c5 run #0: crashed: KASAN: use-after-free Write in __crypto_shash_import run #1: crashed: KASAN: use-after-free Write in __crypto_shash_import run #2: crashed: KASAN: use-after-free Write in __crypto_shash_import run #3: crashed: KASAN: use-after-free Write in __crypto_shash_import run #4: crashed: KASAN: use-after-free Write in __crypto_shash_import run #5: crashed: KASAN: use-after-free Write in __crypto_shash_import run #6: crashed: KASAN: use-after-free Write in __crypto_shash_import run #7: crashed: KASAN: use-after-free Write in __crypto_shash_import run #8: crashed: BUG: unable to handle kernel paging request in __crypto_shash_import run #9: crashed: KASAN: use-after-free Write in __crypto_shash_import run #10: crashed: KASAN: use-after-free Write in __crypto_shash_import run #11: crashed: KASAN: use-after-free Write in __crypto_shash_import run #12: crashed: KASAN: use-after-free Write in __crypto_shash_import run #13: crashed: KASAN: use-after-free Write in __crypto_shash_import run #14: crashed: KASAN: use-after-free Write in __crypto_shash_import run #15: crashed: KASAN: use-after-free Write in __crypto_shash_import run #16: crashed: KASAN: use-after-free Write in __crypto_shash_import run #17: crashed: KASAN: use-after-free Write in __crypto_shash_import run #18: crashed: KASAN: use-after-free Write in __crypto_shash_import run #19: crashed: KASAN: use-after-free Write in __crypto_shash_import representative crash: KASAN: use-after-free Write in __crypto_shash_import, 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 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4a019e060232e77fd19323ae1601e8e1a6c06c6a8676c9c4c529d9f87f32692d all runs: crashed: KASAN: use-after-free Write in __crypto_shash_import representative crash: KASAN: use-after-free Write in __crypto_shash_import, types: [KASAN] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed kconfig minimization: base=4091 full=8361 leaves diff=2131 split chunks (needed=false): <2131> split chunk #0 of len 2131 into 5 parts testing without sub-chunk 1/5 disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG LOCKDEP], they are not needed testing commit 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4299ded7fab2a5ea212cc85b09df5141891b635da98dc6d2f4faa9edf0da53f8 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 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 5e4fdf64074b582da833ff28eabc5a91e102bdc00a0ad725b802e0ed31742f64 all runs: crashed: KASAN: use-after-free Write in __crypto_shash_import representative crash: KASAN: use-after-free Write in __crypto_shash_import, 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 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 0da3cbb1bff184ae52d6f00986e902e2e6bb7af6a3bef040af2ee7afe72182b9 all runs: crashed: KASAN: use-after-free Write in __crypto_shash_import representative crash: KASAN: use-after-free Write in __crypto_shash_import, types: [KASAN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG], they are not needed testing commit 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: a2a161b1d340c07aaf047f442845f00ef4dfa7353dbe329fc57862f657f56f67 all runs: crashed: BUG: unable to handle kernel paging request in __crypto_shash_import representative crash: BUG: unable to handle kernel paging request in __crypto_shash_import, types: [UNKNOWN] 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 176e917e010cb7dcc605f11d2bc33f304292482b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 8ffc81bf859a3f73a32c8aa304810e433c032795ecda5ccef2a8a042485da027 all runs: crashed: BUG: unable to handle kernel paging request in __crypto_shash_import representative crash: BUG: unable to handle kernel paging request in __crypto_shash_import, types: [UNKNOWN] the chunk can be dropped minimized to 427 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_MRRM ACPI_NFIT ACPI_NHLT ACPI_PLATFORM_PROFILE ADFS_FS AFFS_FS AFS_FS AFS_FSCACHE AF_KCM AF_RXRPC AF_RXRPC_IPV6 AIX_PARTITION AMD_SFH_HID AMIGA_PARTITION ANDROID_BINDERFS ANDROID_BINDER_IPC ANON_VMA_NAME APERTURE_HELPERS APPLE_MFI_FASTCHARGE AR5523 ARCH_ENABLE_MEMORY_HOTREMOVE ARCH_ENABLE_THP_MIGRATION ARCH_HAS_USER_SHADOW_STACK ARCH_SUPPORTS_HUGE_PFNMAP ARCH_SUPPORTS_PMD_PFNMAP ARCH_SUPPORTS_PUD_PFNMAP ARCH_WANT_PMD_MKWRITE ASM_MODVERSIONS ASUS_TF103C_DOCK 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_LEDS ATH10K_PCI ATH10K_USB ATH11K ATH6KL ATH6KL_USB ATH9K ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_CHANNEL_CONTEXT ATH9K_COMMON ATH9K_COMMON_DEBUG ATH9K_COMMON_SPECTRAL 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_ERASURE_CODING BCACHEFS_FS BCACHEFS_POSIX_ACL 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_DEV_BSGLIB BLK_DEV_INTEGRITY 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_NF_EBTABLES_LEGACY 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_HCIBCM203X BT_HCIBFUSB BT_HCIBPA10X BT_HCIBTUSB BT_HCIBTUSB_AUTOSUSPEND 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_INTEL BT_LE BT_LEDS BT_LE_L2CAP_ECRED BT_MRVL BT_MRVL_SDIO BT_MSFTEXT BT_MTK BT_MTKSDIO BT_MTKUART 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_ESD_USB CAN_ETAS_ES58X CAN_F81604 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_UCAN CAN_VCAN CAN_VXCAN CARL9170 CARL9170_HWRNG CARL9170_LEDS CARL9170_WPC 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_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_MAX 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 CRC64 CRC64_ARCH CRC8 CRC_CCITT CRC_ITU_T CRC_T10DIF CRC_T10DIF_ARCH CRYPTO_842 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_ARCH_HAVE_LIB_SHA256 CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD 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_CRC32C 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_ECDH CRYPTO_ECRDSA CRYPTO_ENGINE CRYPTO_ESSIV CRYPTO_FCRYPT CRYPTO_GHASH_CLMUL_NI_INTEL CRYPTO_HCTR2 CRYPTO_HKDF CRYPTO_KDF800108_CTR CRYPTO_KHAZAD CRYPTO_KPP CRYPTO_KRB5 CRYPTO_KRB5ENC CRYPTO_LIB_ARC4 CRYPTO_LIB_CHACHA CRYPTO_LIB_CHACHA20POLY1305 CRYPTO_LIB_CHACHA_GENERIC CRYPTO_LIB_CURVE25519 CRYPTO_LIB_CURVE25519_GENERIC CRYPTO_LIB_CURVE25519_INTERNAL CRYPTO_LIB_DES CRYPTO_LIB_POLY1305 CRYPTO_LIB_POLY1305_GENERIC CRYPTO_LIB_SHA256_GENERIC CRYPTO_LIB_SM3 CRYPTO_LRW CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_MICHAEL_MIC CRYPTO_NHPOLY1305 CRYPTO_NHPOLY1305_AVX2 CRYPTO_NHPOLY1305_SSE2 CRYPTO_PCBC CRYPTO_PCRYPT 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_X86_64 CRYPTO_SHA512_SSSE3 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_WP512 CRYPTO_XCBC CRYPTO_XCTR CRYPTO_XTS CRYPTO_XXHASH CRYPTO_ZSTD CUSE CYPRESS_FIRMWARE DAMON DAMON_PADDR DAMON_RECLAIM DAMON_VADDR DAX DCA DCB DEBUG_VFS DEFAULT_CODEL DEVICE_MIGRATION DEVICE_PRIVATE DEV_COREDUMP DEV_DAX 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_AUX_BRIDGE DRM_BOCHS DRM_BRIDGE DRM_BUDDY DRM_CIRRUS_QEMU DRM_CLIENT DRM_CLIENT_DEFAULT_FBDEV DRM_CLIENT_LIB DRM_CLIENT_SELECTION DRM_CLIENT_SETUP DRM_DEBUG_MM DRM_DISPLAY_DP_AUX_BUS DRM_DISPLAY_DP_HELPER DRM_DISPLAY_HELPER DRM_FBDEV_EMULATION ENCRYPTED_KEYS FSCACHE FUSE_FS GPIOLIB HAMRADIO HID_DRAGONRISE IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_RTRS_CLIENT IOSCHED_BFQ LIBNVDIMM MAC80211 MAC80211_DEBUGFS MAC80211_LEDS MEDIA_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MMC 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 WLAN WLAN_VENDOR_ATH ZONE_DEVICE] disabling configs for [UBSAN BUG LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed picked [v6.14 v6.13 v6.12 v6.10 v6.8 v6.6 v6.4 v6.2 v5.19 v5.16 v5.13 v5.10 v5.7 v5.4 v5.1 v4.19] out of 37 release tags testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: beacbfc3c19279a90e23bfd22c4ab85bd9e5bbc9da714cf5983cdea517907d54 run #0: crashed: KASAN: slab-use-after-free Write in binderfs_evict_inode run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: KASAN: slab-use-after-free Write in binderfs_evict_inode, types: [KASAN] unable to determine the verdict: 9 good runs (wanted 5), for bad wanted 5 in total, got 10 testing release v6.13 testing commit ffd294d346d185b70e28b1a28abe367bbfe53c04 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 2f54d56a97423651c601930a98dce9dadefeb358ccf42b4f7759a9ad8ac55c85 all runs: OK false negative chance: 0.000 # git bisect start 176e917e010cb7dcc605f11d2bc33f304292482b ffd294d346d185b70e28b1a28abe367bbfe53c04 Bisecting: 19743 revisions left to test after this (roughly 14 steps) [0c86b42439b6c11d758b3392a21117934fef00c1] Merge tag 'drm-next-2025-03-28' of https://gitlab.freedesktop.org/drm/kernel testing commit 0c86b42439b6c11d758b3392a21117934fef00c1 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 6966da79ee216379b3a7cdbbb02a11670ad0d516ec259ca8db1c3f24b51210de all runs: OK false negative chance: 0.000 # git bisect good 0c86b42439b6c11d758b3392a21117934fef00c1 Bisecting: 9641 revisions left to test after this (roughly 13 steps) [7cd48a72f268c9e9cc98146bfc594f5411f34a39] Merge branch 'fs-next' of linux-next testing commit 7cd48a72f268c9e9cc98146bfc594f5411f34a39 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: b2526a99fb0e1a33f12bb64853076a211ebbe8f83712dfddf9ed1a38d5b055d2 all runs: OK false negative chance: 0.000 # git bisect good 7cd48a72f268c9e9cc98146bfc594f5411f34a39 Bisecting: 4694 revisions left to test after this (roughly 12 steps) [b9fcc4441477b045ff36b7219555cff4afb0daf1] Merge branch 'drm-next' of https://gitlab.freedesktop.org/drm/kernel.git testing commit b9fcc4441477b045ff36b7219555cff4afb0daf1 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: f9e80cb80c0e122abb0fe9eefb1dd5cf87d4fd852cb0d9d390d6810d20386878 all runs: crashed: BUG: unable to handle kernel paging request in __crypto_shash_import representative crash: BUG: unable to handle kernel paging request in __crypto_shash_import, types: [UNKNOWN] # git bisect bad b9fcc4441477b045ff36b7219555cff4afb0daf1 Bisecting: 2208 revisions left to test after this (roughly 11 steps) [24114f6dc0b6faf8f32086fab9d5478ed5b43a31] Merge branch 'main' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git testing commit 24114f6dc0b6faf8f32086fab9d5478ed5b43a31 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4917144b0005cdd15c9f9b890c812a30ddaf13150ac4ded57b242c1ce37a5433 all runs: OK false negative chance: 0.000 # git bisect good 24114f6dc0b6faf8f32086fab9d5478ed5b43a31 Bisecting: 871 revisions left to test after this (roughly 10 steps) [1faeeb315fdbd005bbc1bc74214e39087971dda9] Merge tag 'amd-drm-next-6.16-2025-05-09' of https://gitlab.freedesktop.org/agd5f/linux into drm-next testing commit 1faeeb315fdbd005bbc1bc74214e39087971dda9 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: bedc10ab3e8e5985963fd3bc811490b59c03524614e282b1fad77737b09719a7 all runs: OK false negative chance: 0.000 # git bisect good 1faeeb315fdbd005bbc1bc74214e39087971dda9 Bisecting: 488 revisions left to test after this (roughly 9 steps) [0413bcf0fc460a68a2a7a8354aee833293d7d693] crypto: marvell/cesa - Do not chain submitted requests testing commit 0413bcf0fc460a68a2a7a8354aee833293d7d693 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 195ccb47918486ea71b711cfc7b045f402dead73e1332c19a4399b174c98b9ef all runs: crashed: BUG: unable to handle kernel paging request in __crypto_shash_import representative crash: BUG: unable to handle kernel paging request in __crypto_shash_import, types: [UNKNOWN] # git bisect bad 0413bcf0fc460a68a2a7a8354aee833293d7d693 Bisecting: 191 revisions left to test after this (roughly 8 steps) [b333c273ab43b96ca25469770d3319ec7ababd5a] crypto: arm64/sha3-ce - Use API partial block handling testing commit b333c273ab43b96ca25469770d3319ec7ababd5a gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d040dd41efc8c4690cd43706f96e1dab45a2a42f6c1bbf90746ea008d300bf56 all runs: crashed: BUG: unable to handle kernel paging request in crypto_shash_import_core representative crash: BUG: unable to handle kernel paging request in crypto_shash_import_core, types: [UNKNOWN] # git bisect bad b333c273ab43b96ca25469770d3319ec7ababd5a Bisecting: 95 revisions left to test after this (roughly 7 steps) [6eed1e3552fc076d2617f6793cb148d485696ab6] crypto: api - Mark cra_init/cra_exit as deprecated testing commit 6eed1e3552fc076d2617f6793cb148d485696ab6 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: ffe13267855c4b3d79a32c19e4992a3bce25af620e46aae805d66f2e3d9e6936 all runs: OK false negative chance: 0.000 # git bisect good 6eed1e3552fc076d2617f6793cb148d485696ab6 Bisecting: 47 revisions left to test after this (roughly 6 steps) [2f5f3cd003fa303574da1a8fcdec9f602b7fc221] crypto: sun8i-ss - use API helpers to setup fallback request testing commit 2f5f3cd003fa303574da1a8fcdec9f602b7fc221 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: d30d40cf974bbdfec81de63fb2eee6353a5da07d23f5ba5cdd3dee84149579bc all runs: OK false negative chance: 0.000 # git bisect good 2f5f3cd003fa303574da1a8fcdec9f602b7fc221 Bisecting: 23 revisions left to test after this (roughly 5 steps) [b97d31100e36aae7f9e39543326dae31ee8cdae7] crypto: arm64/sha1 - Use API partial block handling testing commit b97d31100e36aae7f9e39543326dae31ee8cdae7 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: a2b6c9b639d277237bc5b150c75299b02641c33ee169da7ad45beb124a3ed2d9 all runs: crashed: BUG: unable to handle kernel paging request in crypto_shash_import_core representative crash: BUG: unable to handle kernel paging request in crypto_shash_import_core, types: [UNKNOWN] # git bisect bad b97d31100e36aae7f9e39543326dae31ee8cdae7 Bisecting: 11 revisions left to test after this (roughly 4 steps) [ef11957b0ad0a2e1c159c172865d6923f1731b57] crypto: ghash-generic - Use API partial block handling testing commit ef11957b0ad0a2e1c159c172865d6923f1731b57 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: cf705314ee58b8cdd617303177d3644cddfa9787ce3c3401528ecd13e5190ae1 all runs: crashed: BUG: unable to handle kernel paging request in crypto_shash_import_core representative crash: BUG: unable to handle kernel paging request in crypto_shash_import_core, types: [UNKNOWN] # git bisect bad ef11957b0ad0a2e1c159c172865d6923f1731b57 Bisecting: 5 revisions left to test after this (roughly 3 steps) [bb9c648b334be581a791c7669abaa594e4b5ebb7] crypto: lib/poly1305 - restore ability to remove modules testing commit bb9c648b334be581a791c7669abaa594e4b5ebb7 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 4b09c9891e17759de95c091d6b7ac87ac6c14149f1a85c22959b9541b17e4d00 all runs: OK false negative chance: 0.000 # git bisect good bb9c648b334be581a791c7669abaa594e4b5ebb7 Bisecting: 2 revisions left to test after this (roughly 2 steps) [7650f826f7b2d84782f9147c51687ff0364125e9] crypto: shash - Handle partial blocks in API testing commit 7650f826f7b2d84782f9147c51687ff0364125e9 gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 600ecb3669a036cc354f900e868aef68c9ca30315842429749139f6bac2f967f all runs: crashed: BUG: unable to handle kernel paging request in crypto_shash_import_core representative crash: BUG: unable to handle kernel paging request in crypto_shash_import_core, types: [UNKNOWN] # git bisect bad 7650f826f7b2d84782f9147c51687ff0364125e9 Bisecting: 0 revisions left to test after this (roughly 1 step) [2ee97c190b2b6769d7c1688e80b84c951177a22b] crypto: engine - Realign struct crypto_engine to save 8 bytes testing commit 2ee97c190b2b6769d7c1688e80b84c951177a22b gcc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 kernel signature: 7ca4d890dd7bfc1442e729fbfa6eb46d527f3d98769264008dbb0a68effe1552 all runs: OK false negative chance: 0.000 # git bisect good 2ee97c190b2b6769d7c1688e80b84c951177a22b 7650f826f7b2d84782f9147c51687ff0364125e9 is the first bad commit commit 7650f826f7b2d84782f9147c51687ff0364125e9 Author: Herbert Xu Date: Fri Apr 18 10:58:41 2025 +0800 crypto: shash - Handle partial blocks in API Provide an option to handle the partial blocks in the shash API. Almost every hash algorithm has a block size and are only able to hash partial blocks on finalisation. Rather than duplicating the partial block handling many times, add this functionality to the shash API. It is optional (e.g., hmac would never need this by relying on the partial block handling of the underlying hash), and to enable it set the bit CRYPTO_AHASH_ALG_BLOCK_ONLY. The export format is always that of the underlying hash export, plus the partial block buffer, followed by a single-byte for the partial block length. Set the bit CRYPTO_AHASH_ALG_FINAL_NONZERO to withhold an extra byte in the partial block. This will come in handy when this is extended to ahash where hardware often can't deal with a zero-length final. It will also be used for algorithms requiring an extra block for finalisation (e.g., cmac). As an optimisation, set the bit CRYPTO_AHASH_ALG_FINUP_MAX if the algorithm wishes to get as much data as possible instead of just the last partial block. The descriptor will be zeroed after finalisation. Signed-off-by: Herbert Xu crypto/shash.c | 223 ++++++++++++++++++++++++++++++++++------- include/crypto/hash.h | 82 +++++++++------ include/crypto/internal/hash.h | 15 +++ include/linux/crypto.h | 2 + 4 files changed, 257 insertions(+), 65 deletions(-) accumulated error probability: 0.00 culprit signature: 600ecb3669a036cc354f900e868aef68c9ca30315842429749139f6bac2f967f parent signature: 7ca4d890dd7bfc1442e729fbfa6eb46d527f3d98769264008dbb0a68effe1552 revisions tested: 23, total time: 10h49m58.672336848s (build: 4h57m40.9276446s, test: 2h54m2.775383841s) first bad commit: 7650f826f7b2d84782f9147c51687ff0364125e9 crypto: shash - Handle partial blocks in API 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: BUG: unable to handle kernel paging request in crypto_shash_import_core BUG: unable to handle page fault for address: ffffed104fdc215e #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffeb067 P4D 23ffeb067 PUD 23ffe9067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 4944 Comm: syz.2.18 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:crypto_shash_import_core+0xe5/0x260 crypto/shash.c:256 Code: 8b 5d f0 48 83 c5 fc 48 89 e8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 19 01 00 00 8b 6d 00 ff cb 48 01 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 22 01 00 00 c6 03 00 49 8b 1f 4c 8d 7b RSP: 0018:ffffc90003f97bf8 EFLAGS: 00010a03 RAX: 1ffff1104fdc215e RBX: ffff88827ee10af7 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff88817ee10af8 RBP: 0000000000000000 R08: ffff8881725841c3 R09: 1ffff1102e4b0838 R10: dffffc0000000000 R11: ffffed102e4b0839 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff88817ee10af0 R15: ffff8881790a6498 FS: 00007fc4a0bfe6c0(0000) GS:ffff88826ced3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed104fdc215e CR3: 0000000170b50000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: crypto_shash_import+0x42/0x1d0 crypto/shash.c:274 hash_accept+0x1c9/0x310 crypto/algif_hash.c:267 do_accept+0x457/0x620 net/socket.c:1924 __sys_accept4_file net/socket.c:1964 [inline] __sys_accept4+0xd7/0x160 net/socket.c:1993 __do_sys_accept net/socket.c:2006 [inline] __se_sys_accept net/socket.c:2003 [inline] __x64_sys_accept+0x78/0x90 net/socket.c:2003 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x8f/0x170 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc4a198e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc4a0bfe038 EFLAGS: 00000246 ORIG_RAX: 000000000000002b RAX: ffffffffffffffda RBX: 00007fc4a1bb5fa0 RCX: 00007fc4a198e969 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fc4a1a10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fc4a1bb5fa0 R15: 00007ffeaf86e9a8 Modules linked in: CR2: ffffed104fdc215e ---[ end trace 0000000000000000 ]--- RIP: 0010:crypto_shash_import_core+0xe5/0x260 crypto/shash.c:256 Code: 8b 5d f0 48 83 c5 fc 48 89 e8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 19 01 00 00 8b 6d 00 ff cb 48 01 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 22 01 00 00 c6 03 00 49 8b 1f 4c 8d 7b RSP: 0018:ffffc90003f97bf8 EFLAGS: 00010a03 RAX: 1ffff1104fdc215e RBX: ffff88827ee10af7 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff88817ee10af8 RBP: 0000000000000000 R08: ffff8881725841c3 R09: 1ffff1102e4b0838 R10: dffffc0000000000 R11: ffffed102e4b0839 R12: 0000000000000001 R13: dffffc0000000000 R14: ffff88817ee10af0 R15: ffff8881790a6498 FS: 00007fc4a0bfe6c0(0000) GS:ffff88826ced3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed104fdc215e CR3: 0000000170b50000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 8b 5d f0 mov -0x10(%rbp),%ebx 3: 48 83 c5 fc add $0xfffffffffffffffc,%rbp 7: 48 89 e8 mov %rbp,%rax a: 48 c1 e8 03 shr $0x3,%rax e: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 13: 84 c0 test %al,%al 15: 0f 85 19 01 00 00 jne 0x134 1b: 8b 6d 00 mov 0x0(%rbp),%ebp 1e: ff cb dec %ebx 20: 48 01 fb add %rdi,%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 22 01 00 00 jne 0x159 37: c6 03 00 movb $0x0,(%rbx) 3a: 49 8b 1f mov (%r15),%rbx 3d: 4c rex.WR 3e: 8d .byte 0x8d 3f: 7b .byte 0x7b