ci2 starts bisection 2025-08-29 12:39:42.343218523 +0000 UTC m=+12184.113394676 bisecting fixing commit since 6282921b6825fef6a1243e1c80063421d41e2576 building syzkaller on cfebc8873b2f707ef8ed0bb2d8abb0280fede23a ensuring issue is reproducible on original commit 6282921b6825fef6a1243e1c80063421d41e2576 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 564c5119395443b093e6a869a434b63c00ef965f4aa934e60ebbd288c935fc1d all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] check whether we can drop unnecessary instrumentation disabling configs for [kasan atomic_sleep hang memleak ubsan bug_or_warning], they are not needed testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: ef95166244f04b463dcfdc086a2d40e4b0c785f1dc4b0492df740edbb28c6949 all runs: OK false negative chance: 0.000 kconfig minimization: base=3913 full=7684 leaves diff=2102 split chunks (needed=false): <2102> split chunk #0 of len 2102 into 5 parts testing without sub-chunk 1/5 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 15074b4c69542559d7779bb4780c1423673fe69ea41c5da1579080724a517ded all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 2/5 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: a8835dbfbe97ece880b618b75ddc9fb51325acb5b766318fcbc250abf16349c3 all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 3/5 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 12289b20eb9bbd169e7e3e84fbe5e0744aa7fd15c8e8832a6d0fe9f17bed5ce3 all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 4/5 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d6e85992bf8b01bb8e3f08ff7595f4fd6df2c0bf5fd7647860d9ec5a963f1bce all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] the chunk can be dropped testing without sub-chunk 5/5 testing commit 6282921b6825fef6a1243e1c80063421d41e2576 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d7c6a612864f6de29b5e716eba8d1254fe3191ae2cceea85191430f743e471a1 all runs: OK false negative chance: 0.000 minimized to 418 configs; suspects: [ARCH_ENABLE_MEMORY_HOTREMOVE ATM BCMA BLK_DEV_ZONED BPF_SYSCALL CARDBUS CFG80211 CFG80211_WEXT CMA COMMON_CLK CONTIG_ALLOC CRYPTO_842 CRYPTO_LZ4 CRYPTO_LZ4HC CRYPTO_LZO CRYPTO_ZSTD DVB_CORE EXTCON FB GPIOLIB HID_ZEROPLUS I2C_MUX IIO IOMMUFD IRQ_REMAP KVM KVM_INTEL LIBNVDIMM MEDIA_ANALOG_TV_SUPPORT MEDIA_CAMERA_SUPPORT MEDIA_CEC_SUPPORT MEDIA_CONTROLLER MEDIA_DIGITAL_TV_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SDR_SUPPORT MEDIA_SUPPORT MEDIA_TEST_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_VIPERBOARD NOP_USB_XCEIV PARPORT PCCARD PCMCIA PHONET RADIO_ADAPTERS RADIO_SI470X RADIO_SI4713 RC_CORE RFKILL SND SOUND SPI SSB TAP TARGET_CORE TUN USB_AMD5536UDC USB_ATM USB_CHIPIDEA USB_CHIPIDEA_MSM USB_CHIPIDEA_PCI USB_CHIPIDEA_UDC USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_CONFIGFS_ECM_SUBSET USB_CONFIGFS_EEM USB_CONFIGFS_F_FS USB_CONFIGFS_F_HID USB_CONFIGFS_F_LB_SS USB_CONFIGFS_F_MIDI USB_CONFIGFS_F_MIDI2 USB_CONFIGFS_F_PRINTER USB_CONFIGFS_F_TCM USB_CONFIGFS_F_UAC1 USB_CONFIGFS_F_UAC1_LEGACY USB_CONFIGFS_F_UAC2 USB_CONFIGFS_F_UVC USB_CONFIGFS_MASS_STORAGE USB_CONFIGFS_NCM USB_CONFIGFS_OBEX USB_CONFIGFS_PHONET USB_CONFIGFS_RNDIS USB_CONFIGFS_SERIAL USB_CONN_GPIO USB_CXACRU USB_CYPRESS_CY7C63 USB_CYTHERM USB_DSBR USB_DUMMY_HCD USB_DWC2 USB_DWC2_HOST USB_DWC2_PCI USB_DWC3 USB_DWC3_GADGET USB_DWC3_HAPS USB_DWC3_OF_SIMPLE USB_DWC3_PCI USB_DWC3_ULPI USB_DYNAMIC_MINORS USB_EG20T USB_EHCI_FSL USB_EHCI_HCD_PLATFORM USB_EHCI_ROOT_HUB_TT USB_EHSET_TEST_FIXTURE USB_EMI26 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USB_TRANCEVIBRATOR USB_UAS USB_UEAGLEATM USB_ULPI_BUS USB_USBNET USB_USS720 USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_VIDEO_CLASS USB_VIDEO_CLASS_INPUT_EVDEV USB_VL600 USB_WDM USB_XHCI_DBGCAP USB_XHCI_PCI_RENESAS USB_XHCI_PLATFORM USB_XUSBATM USB_YUREX USERFAULTFD USERIO USERMODE_DRIVER USER_RETURN_NOTIFIER UVC_COMMON U_SERIAL_CONSOLE V4L2_MEM2MEM_DEV V4L_TEST_DRIVERS VALIDATE_FS_PARSER VDPA VDPA_SIM VDPA_SIM_BLOCK VDPA_SIM_NET VDPA_USER VETH VFIO VFIO_DEVICE_CDEV VFIO_PCI VFIO_PCI_CORE VFIO_PCI_INTX VFIO_PCI_MMAP VFIO_VIRQFD VGASTATE VHOST VHOST_CROSS_ENDIAN_LEGACY VHOST_IOTLB VHOST_NET VHOST_RING VHOST_TASK VHOST_VDPA VHOST_VSOCK VIDEOBUF2_CORE VIDEOBUF2_DMA_CONTIG VIDEOBUF2_DMA_SG VIDEOBUF2_MEMOPS VIDEOBUF2_V4L2 VIDEOBUF2_VMALLOC VIDEOMODE_HELPERS VIDEO_AU0828 VIDEO_AU0828_RC VIDEO_AU0828_V4L2 VIDEO_CMDLINE VIDEO_CS53L32A VIDEO_CX231XX VIDEO_CX231XX_ALSA VIDEO_CX231XX_DVB VIDEO_CX231XX_RC VIDEO_CX2341X VIDEO_CX25840 VIDEO_DEV VIDEO_EM28XX VIDEO_EM28XX_ALSA VIDEO_EM28XX_DVB VIDEO_EM28XX_RC VIDEO_EM28XX_V4L2 VIDEO_GO7007 VIDEO_GO7007_LOADER VIDEO_GO7007_USB VIDEO_GO7007_USB_S2250_BOARD VIDEO_HDPVR VIDEO_MSP3400 VIDEO_NOMODESET VIDEO_PVRUSB2 VIDEO_PVRUSB2_DVB VIDEO_PVRUSB2_SYSFS VIDEO_SAA711X VIDEO_STK1160 VIDEO_TUNER VIDEO_TVEEPROM VIDEO_USBTV VIDEO_V4L2_I2C VIDEO_V4L2_SUBDEV_API VIDEO_V4L2_TPG VIDEO_VICODEC VIDEO_VIM2M VIDEO_VIMC VIDEO_VIVID VIDEO_VIVID_CEC VIDEO_WM8775 VIPERBOARD_ADC VIRTIO_BALLOON VIRTIO_DMA_SHARED_BUFFER VIRTIO_MEM VIRTIO_MMIO VIRTIO_MMIO_CMDLINE_DEVICES VIRTIO_PMEM VIRTIO_VDPA VIRTIO_VSOCKETS VIRTIO_VSOCKETS_COMMON VIRT_WIFI VLAN_8021Q VLAN_8021Q_GVRP VLAN_8021Q_MVRP VMAP_PFN VMWARE_VMCI VMXNET3 VP_VDPA VSOCKETS VSOCKETS_DIAG VSOCKETS_LOOPBACK VSOCKMON VT_HW_CONSOLE_BINDING VXFS_FS WANT_DEV_COREDUMP WEXT_CORE WEXT_PRIV WEXT_PROC WIREGUARD WIRELESS WIRELESS_EXT WLAN WLAN_VENDOR_ADMTEK WLAN_VENDOR_SILABS X86_SGX X86_SGX_KVM X86_USER_SHADOW_STACK X86_X2APIC XARRAY_MULTI XDP_SOCKETS XDP_SOCKETS_DIAG XFRM_ESPINTCP XFRM_INTERFACE XFRM_IPCOMP XFRM_MIGRATE XFRM_OFFLOAD XFRM_STATISTICS XFRM_SUB_POLICY XFRM_USER_COMPAT XFS_FS XFS_POSIX_ACL XFS_QUOTA XFS_RT XILLYBUS_CLASS XILLYUSB XOR_BLOCKS YENTA YENTA_ENE_TUNE YENTA_O2 YENTA_RICOH YENTA_TI YENTA_TOSHIBA ZBUD ZEROPLUS_FF ZLIB_DEFLATE ZONEFS_FS ZPOOL ZRAM ZRAM_DEF_COMP_LZORLE ZSMALLOC ZSTD_COMPRESS ZSWAP ZSWAP_COMPRESSOR_DEFAULT_LZO ZSWAP_DEFAULT_ON ZSWAP_ZPOOL_DEFAULT_ZBUD] determining the merge base between 6282921b6825fef6a1243e1c80063421d41e2576 and 07d9df80082b8d1f37e05658371b087cb6738770 ffc253263a1375a65fa6c9f62a893e9767fbebfa/Linux 6.6 is a merge base, check if it has the bug testing commit ffc253263a1375a65fa6c9f62a893e9767fbebfa gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 5877711a813696ffbbe5ca9b0a4dd98c3c4d6116c748fe1d6db56c712fada116 all runs: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP] testing current HEAD 07d9df80082b8d1f37e05658371b087cb6738770 testing commit 07d9df80082b8d1f37e05658371b087cb6738770 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 3bfc6d81b75c9e1f36711b5abc281d223e7d61d1f5c726e2cf828b4d9cbf4518 all runs: OK false negative chance: 0.000 # git bisect start 07d9df80082b8d1f37e05658371b087cb6738770 ffc253263a1375a65fa6c9f62a893e9767fbebfa Bisecting: 82835 revisions left to test after this (roughly 16 steps) [303ba85c60442ecdca77231f227126a83ba39bd3] Merge tag 'spi-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 303ba85c60442ecdca77231f227126a83ba39bd3 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: b46c7cab9087f90406655462a2e6492ec8e6c612d51fb24f292dc86628a9a515 run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #8: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #9: crashed: UBSAN: signed-integer-overflow in __ip_select_ident representative crash: UBSAN: signed-integer-overflow in __ip_select_ident, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 2 # git bisect skip 303ba85c60442ecdca77231f227126a83ba39bd3 Bisecting: 82835 revisions left to test after this (roughly 16 steps) [6639d7d9af301994bfc48b69be5a9de67d065756] drm/vc4: plane: Keep fractional source coords inside state determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 6639d7d9af301994bfc48b69be5a9de67d065756 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1423719b1223a614751f727e37693c53348a5374148fcf2e6de15d1fc105931a run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #8: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #9: crashed: possible deadlock in trie_delete_elem representative crash: UBSAN: signed-integer-overflow in __ip_select_ident, types: [UBSAN LOCKDEP] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 2 # git bisect skip 6639d7d9af301994bfc48b69be5a9de67d065756 Bisecting: 82835 revisions left to test after this (roughly 16 steps) [47e99f30730c0167cd32c9a2fd4a74f0a024cb2b] selftest/tcp-ao: Add filter tests determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 47e99f30730c0167cd32c9a2fd4a74f0a024cb2b gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 8501459e3a8ff1f00e97a5395b44b616bb4d6d3d7eb8ff6369302bbfca13689c run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #8: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #9: crashed: UBSAN: signed-integer-overflow in __ip_select_ident representative crash: UBSAN: signed-integer-overflow in __ip_select_ident, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 3 # git bisect skip 47e99f30730c0167cd32c9a2fd4a74f0a024cb2b Bisecting: 82835 revisions left to test after this (roughly 16 steps) [6df928086070b4db8cadc31a4424524f57c584ae] Merge tag 'regulator-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 6df928086070b4db8cadc31a4424524f57c584ae gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: eb6d7700b6b51733553e51805114aa8e58d8cbe1eba459b1a44767c3d66e737b run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #8: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #9: crashed: UBSAN: signed-integer-overflow in __ip_select_ident representative crash: UBSAN: signed-integer-overflow in __ip_select_ident, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 3 # git bisect skip 6df928086070b4db8cadc31a4424524f57c584ae Bisecting: 82835 revisions left to test after this (roughly 16 steps) [72be5aa6be4af29fa2d77737e634b9a4c0e02d69] KVM: selftests: Add test for PSCI SYSTEM_OFF2 determine whether the revision contains the guilty commit revision 303ba85c60442ecdca77231f227126a83ba39bd3 crashed and is reachable testing commit 72be5aa6be4af29fa2d77737e634b9a4c0e02d69 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: a20cbf7f66c288e0a907c03f2f70d9fe3b55755994253167d678e3c57fde2bc8 run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #8: crashed: possible deadlock in trie_delete_elem run #9: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 3 # git bisect skip 72be5aa6be4af29fa2d77737e634b9a4c0e02d69 Bisecting: 82835 revisions left to test after this (roughly 16 steps) [9179b73aa72add1bd54d8fa15d7f47a1fa602248] Merge tag 'regmap-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 9179b73aa72add1bd54d8fa15d7f47a1fa602248 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 4350c51e05f950af6bcca28f8f5d4a060d99c5e257269b1ece9053f42582eb1c run #0: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #1: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #2: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #3: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #4: basic kernel testing failed: UBSAN: signed-integer-overflow in __ip_select_ident run #5: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #6: crashed: UBSAN: signed-integer-overflow in __ip_select_ident run #7: crashed: possible deadlock in trie_delete_elem run #8: crashed: possible deadlock in trie_delete_elem run #9: crashed: possible deadlock in trie_delete_elem representative crash: possible deadlock in trie_delete_elem, types: [LOCKDEP UBSAN] # git bisect good 9179b73aa72add1bd54d8fa15d7f47a1fa602248 Bisecting: 41501 revisions left to test after this (roughly 15 steps) [e50da555ca4d42b1b98d0f26789db64f26a0919a] Merge tag 'sound-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision 303ba85c60442ecdca77231f227126a83ba39bd3 crashed and is reachable testing commit e50da555ca4d42b1b98d0f26789db64f26a0919a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 8610fe44573ab0baf6fdf578e8054a84ff560778f4d4126b3be372a2ea9fc710 all runs: boot failed: UBSAN: negation-overflow in corrupted unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 # git bisect skip e50da555ca4d42b1b98d0f26789db64f26a0919a Bisecting: 41501 revisions left to test after this (roughly 15 steps) [fb1ceb29b27cda91af35851ebab01f298d82162e] Merge tag 'platform-drivers-x86-v6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 determine whether the revision contains the guilty commit revision 6639d7d9af301994bfc48b69be5a9de67d065756 crashed and is reachable testing commit fb1ceb29b27cda91af35851ebab01f298d82162e gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 68d0bee98b44248a15a5e535ab5ab968ba95380b2fec64f2e64d4a3b7f5444d1 all runs: boot failed: UBSAN: negation-overflow in corrupted unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 # git bisect skip fb1ceb29b27cda91af35851ebab01f298d82162e Bisecting: 41501 revisions left to test after this (roughly 15 steps) [b93336cd767fc266dcccfa034a1fb32ae1a23564] crypto: x509 - Replace kmalloc() + NUL-termination with kzalloc() determine whether the revision contains the guilty commit revision 47e99f30730c0167cd32c9a2fd4a74f0a024cb2b crashed and is reachable testing commit b93336cd767fc266dcccfa034a1fb32ae1a23564 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: e70e2bc261abb2c0a94a9a82038c876487974570fb539f1339df5cf0f7b6c2b6 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good b93336cd767fc266dcccfa034a1fb32ae1a23564 Bisecting: 15628 revisions left to test after this (roughly 14 steps) [378ec25aec5a8444879f8696d580c94950a1f1df] Merge tag 'tty-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 378ec25aec5a8444879f8696d580c94950a1f1df gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: bafd004d3cac239455c3c4df14657cda50d523a7b49e4a59dbd225db6a458cf7 all runs: OK false negative chance: 0.000 # git bisect bad 378ec25aec5a8444879f8696d580c94950a1f1df Bisecting: 7678 revisions left to test after this (roughly 13 steps) [b08494a8f7416e5f09907318c5460ad6f6e2a548] Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit b08494a8f7416e5f09907318c5460ad6f6e2a548 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 5793507b56c6cd775fa8007ab85a365f3ff63d15e91c2c996cb1e84e588bf9e2 all runs: OK false negative chance: 0.000 # git bisect bad b08494a8f7416e5f09907318c5460ad6f6e2a548 Bisecting: 4016 revisions left to test after this (roughly 12 steps) [ddddf9d64f7361323da663637adb4a02466bfc99] Merge tag 'perf-core-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 6df928086070b4db8cadc31a4424524f57c584ae crashed and is reachable testing commit ddddf9d64f7361323da663637adb4a02466bfc99 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 42525dc843e20aee0403a312e78a2704d41cb09fc40500242fbf973e7ca78616 all runs: OK false negative chance: 0.000 # git bisect bad ddddf9d64f7361323da663637adb4a02466bfc99 Bisecting: 1948 revisions left to test after this (roughly 11 steps) [546bce579204685a0b204beebab98c3aa496e651] Merge tag 'tpmdd-next-6.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 546bce579204685a0b204beebab98c3aa496e651 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 304eb6f30afc72e6e6ff3bd004ecb5cea680fc0ec51be391ce3623a9390d75cb all runs: OK false negative chance: 0.000 # git bisect bad 546bce579204685a0b204beebab98c3aa496e651 Bisecting: 968 revisions left to test after this (roughly 10 steps) [b936a9b8d4a585ccb6d454921c36286bfe63e01d] net: ipv6: fix UDPv6 GSO segmentation with NAT determine whether the revision contains the guilty commit revision 6df928086070b4db8cadc31a4424524f57c584ae crashed and is reachable testing commit b936a9b8d4a585ccb6d454921c36286bfe63e01d gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 4d2c382edec3c53c8879a328365527f744445f9e7a6cf64147dfa83b2080e85a all runs: OK false negative chance: 0.000 # git bisect bad b936a9b8d4a585ccb6d454921c36286bfe63e01d Bisecting: 476 revisions left to test after this (roughly 9 steps) [8176e776cb52d7f9747994941f25ffa89d2a40a6] Merge tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 8176e776cb52d7f9747994941f25ffa89d2a40a6 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: a26b0c0031283fde92d03f2dfa9014d8f3a28b92f58508653a1ddce56c271de5 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 8176e776cb52d7f9747994941f25ffa89d2a40a6 Bisecting: 240 revisions left to test after this (roughly 8 steps) [ac85740edf05751bf8730df5b898c92ed9b538b7] Merge tag 'timers-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 8176e776cb52d7f9747994941f25ffa89d2a40a6 crashed and is reachable testing commit ac85740edf05751bf8730df5b898c92ed9b538b7 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 1990422dc9e2fcc69f128d5cca2af3ad0a8df53e15badbb1ed9ac9165c83fbb3 all runs: OK false negative chance: 0.000 # git bisect bad ac85740edf05751bf8730df5b898c92ed9b538b7 Bisecting: 117 revisions left to test after this (roughly 7 steps) [9e99c1accb1df0b07e409ce21f15fa4e8ddca28f] Merge tag 'bcachefs-2025-04-17' of git://evilpiepirate.org/bcachefs determine whether the revision contains the guilty commit revision 47e99f30730c0167cd32c9a2fd4a74f0a024cb2b crashed and is reachable testing commit 9e99c1accb1df0b07e409ce21f15fa4e8ddca28f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: bd657cb5db7717693f1454f527574e51adee25b11c4aa5262947138f9d2a90f3 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: boot failed: UBSAN: negation-overflow in corrupted representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 9e99c1accb1df0b07e409ce21f15fa4e8ddca28f Bisecting: 58 revisions left to test after this (roughly 6 steps) [7e74f756f5f643148ca5537bf2fee6767e4b0ed9] Merge tag 'v6.15-rc2-ksmbd-server-fixes' of git://git.samba.org/ksmbd determine whether the revision contains the guilty commit revision 72be5aa6be4af29fa2d77737e634b9a4c0e02d69 crashed and is reachable testing commit 7e74f756f5f643148ca5537bf2fee6767e4b0ed9 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f2c2e2dbe3a28cb2fbc18d0f02d033d5615563a75dfe0676d65ded821abb965c run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 7e74f756f5f643148ca5537bf2fee6767e4b0ed9 Bisecting: 28 revisions left to test after this (roughly 5 steps) [cb64c513b5fbc5a3290d89cbafcc8f9b07a29a46] Merge tag 'pm-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm determine whether the revision contains the guilty commit revision e50da555ca4d42b1b98d0f26789db64f26a0919a crashed and is reachable testing commit cb64c513b5fbc5a3290d89cbafcc8f9b07a29a46 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2836b5432649e8098aaeb6dfb90cde5fcc0cc0fe21db3240ba69b7b89be7a3d6 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 4 # git bisect skip cb64c513b5fbc5a3290d89cbafcc8f9b07a29a46 Bisecting: 28 revisions left to test after this (roughly 5 steps) [d87e4026d1b20e4f237b29e0c956ad415f533de2] cpufreq/amd-pstate: Enable ITMT support after initializing core rankings determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit d87e4026d1b20e4f237b29e0c956ad415f533de2 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 180e6eb793d9c5d4abc6c049dbb58849d5d16c71bf66ba55d92128608d61d7ff run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 4 # git bisect skip d87e4026d1b20e4f237b29e0c956ad415f533de2 Bisecting: 28 revisions left to test after this (roughly 5 steps) [1413708f990cb7d025affd706ba9c23e2bfc1a27] riscv: Avoid fortify warning in syscall_get_arguments() determine whether the revision contains the guilty commit revision 303ba85c60442ecdca77231f227126a83ba39bd3 crashed and is reachable testing commit 1413708f990cb7d025affd706ba9c23e2bfc1a27 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: f1e99a3086d4f2ff328f7710226e1d5c5d6504d2c2334af3c13ba6942f7f3882 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 1413708f990cb7d025affd706ba9c23e2bfc1a27 Bisecting: 25 revisions left to test after this (roughly 5 steps) [fe65616bf8bc1041ead8cae9edc982f62d2c120a] Merge tag 'thermal-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm determine whether the revision contains the guilty commit revision 6df928086070b4db8cadc31a4424524f57c584ae crashed and is reachable testing commit fe65616bf8bc1041ead8cae9edc982f62d2c120a gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 92d95557a9d44798af65a7df944cbf1fb864798ee06e14d8df1e823a9e73bb8f run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 4 # git bisect skip fe65616bf8bc1041ead8cae9edc982f62d2c120a Bisecting: 25 revisions left to test after this (roughly 5 steps) [32c7f1150225694d95a51110a93be25db03bb5db] perf/x86/intel/uncore: Fix the scale of IIO free running counters on ICX determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit 32c7f1150225694d95a51110a93be25db03bb5db gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: d1b26d19dba96f7975e31cec6c486040d569095efebc75ad0fb9e0ff3c08fa9e run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 3 # git bisect skip 32c7f1150225694d95a51110a93be25db03bb5db Bisecting: 25 revisions left to test after this (roughly 5 steps) [84aca3ca6a42dade09d05a541c8aaab5ea228087] Merge tag 'core-urgent-2025-04-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip determine whether the revision contains the guilty commit revision 303ba85c60442ecdca77231f227126a83ba39bd3 crashed and is reachable testing commit 84aca3ca6a42dade09d05a541c8aaab5ea228087 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: a835307902418e37daf4be71d85c583818426da1eb71dd1efeae20f6f4933746 all runs: OK false negative chance: 0.000 # git bisect bad 84aca3ca6a42dade09d05a541c8aaab5ea228087 Bisecting: 14 revisions left to test after this (roughly 4 steps) [7f424c6690df7a5e807548371b9546d51546fc54] Merge tag 'linux_kselftest-kunit-fixes-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest determine whether the revision contains the guilty commit revision 47e99f30730c0167cd32c9a2fd4a74f0a024cb2b crashed and is reachable testing commit 7f424c6690df7a5e807548371b9546d51546fc54 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 0e74277e177e4c712ce1517c1e16592ef263e5393e21003cc53d7b340f4f817a run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 7f424c6690df7a5e807548371b9546d51546fc54 Bisecting: 14 revisions left to test after this (roughly 4 steps) [9b044614be12d78d3a93767708b8d02fb7dfa9b0] ubsan: Fix panic from test_ubsan_out_of_bounds determine whether the revision contains the guilty commit revision 303ba85c60442ecdca77231f227126a83ba39bd3 crashed and is reachable testing commit 9b044614be12d78d3a93767708b8d02fb7dfa9b0 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 5adaa0470e78a1ab971d922620e62fc94df4d9949e017f7595f6134ef080050d all runs: OK false negative chance: 0.000 # git bisect bad 9b044614be12d78d3a93767708b8d02fb7dfa9b0 Bisecting: 2 revisions left to test after this (roughly 1 step) [62d32440ac127b79747ef930205052803a8efd0f] kasan: Add strscpy() test to trigger tag fault on arm64 determine whether the revision contains the guilty commit revision e50da555ca4d42b1b98d0f26789db64f26a0919a crashed and is reachable testing commit 62d32440ac127b79747ef930205052803a8efd0f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 940073c1486aeabc8c285f0a874cc782c558955946d0970446de466de4c38edc run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good 62d32440ac127b79747ef930205052803a8efd0f Bisecting: 0 revisions left to test after this (roughly 1 step) [cdc2e1d9d929d7f7009b3a5edca52388a2b0891f] lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP determine whether the revision contains the guilty commit revision ffc253263a1375a65fa6c9f62a893e9767fbebfa crashed and is reachable testing commit cdc2e1d9d929d7f7009b3a5edca52388a2b0891f gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 07cbe274d685bfab36df7afbf86124aaecd7ff22621278a2234cc076433f55bb all runs: OK false negative chance: 0.000 # git bisect bad cdc2e1d9d929d7f7009b3a5edca52388a2b0891f Bisecting: 0 revisions left to test after this (roughly 0 steps) [f5c68a4e84f9feca3be578199ec648b676db2030] hardening: Disable GCC randstruct for COMPILE_TEST determine whether the revision contains the guilty commit revision 72be5aa6be4af29fa2d77737e634b9a4c0e02d69 crashed and is reachable testing commit f5c68a4e84f9feca3be578199ec648b676db2030 gcc compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 kernel signature: 2d60109b5cf4acb8f6b826b486f2c555e6ebdcccb2bbd05a22874f5245f47378 run #0: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #1: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #2: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #3: basic kernel testing failed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #4: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #5: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #6: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #7: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #8: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace run #9: crashed: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace representative crash: UBSAN: unsigned-integer-overflow in chacha20poly1305_crypt_sg_inplace, types: [UBSAN] # git bisect good f5c68a4e84f9feca3be578199ec648b676db2030 cdc2e1d9d929d7f7009b3a5edca52388a2b0891f is the first bad commit commit cdc2e1d9d929d7f7009b3a5edca52388a2b0891f Author: Nathan Chancellor Date: Mon Apr 14 15:00:59 2025 -0700 lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP CONFIG_UBSAN_INTEGER_WRAP is 'default UBSAN', which is problematic for a couple of reasons. The first is that this sanitizer is under active development on the compiler side to come up with a solution that is maintainable on the compiler side and usable on the kernel side. As a result of this, there are many warnings when the sanitizer is enabled that have no clear path to resolution yet but users may see them and report them in the meantime. The second is that this option was renamed from CONFIG_UBSAN_SIGNED_WRAP, meaning that if a configuration has CONFIG_UBSAN=y but CONFIG_UBSAN_SIGNED_WRAP=n and it is upgraded via olddefconfig (common in non-interactive scenarios such as CI), CONFIG_UBSAN_INTEGER_WRAP will be silently enabled again. Remove 'default UBSAN' from CONFIG_UBSAN_INTEGER_WRAP until it is ready for regular usage and testing from a broader community than the folks actively working on the feature. Cc: stable@vger.kernel.org Fixes: 557f8c582a9b ("ubsan: Reintroduce signed overflow sanitizer") Signed-off-by: Nathan Chancellor Link: https://lore.kernel.org/r/20250414-drop-default-ubsan-integer-wrap-v1-1-392522551d6b@kernel.org Signed-off-by: Kees Cook lib/Kconfig.ubsan | 1 - 1 file changed, 1 deletion(-) accumulated error probability: 0.00 culprit signature: 07cbe274d685bfab36df7afbf86124aaecd7ff22621278a2234cc076433f55bb parent signature: 2d60109b5cf4acb8f6b826b486f2c555e6ebdcccb2bbd05a22874f5245f47378 revisions tested: 38, total time: 9h42m40.603269219s (build: 3h36m22.209876314s, test: 5h36m8.297869307s) first good commit: cdc2e1d9d929d7f7009b3a5edca52388a2b0891f lib/Kconfig.ubsan: Remove 'default UBSAN' from UBSAN_INTEGER_WRAP recipients (to): ["kees@kernel.org" "nathan@kernel.org"] recipients (cc): []