ci starts bisection 2025-09-19 01:30:10.682222643 +0000 UTC m=+624493.068971054 bisecting cause commit starting from 5aca7966d2a7255ba92fd5e63268dd767b223aa5 building syzkaller on e2beed91937c0ace342f19a2e9afb67adb3a828a ensuring issue is reproducible on original commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 91f79dc98c47d3a98662bb2bb88990450304d764bb8915db7d3630af43765303 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] check whether we can drop unnecessary instrumentation disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 429bc6a3ae9d29b222be2cd6d1a320460b4e9c0cff97493e02e581b08d86133c all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] the bug reproduces without the instrumentation disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed kconfig minimization: base=4093 full=8499 leaves diff=2190 split chunks (needed=false): <2190> split chunk #0 of len 2190 into 5 parts testing without sub-chunk 1/5 disabling configs for [locking atomic_sleep hang memleak ubsan bug_or_warning kasan], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 4d9581b69c01216fa0933ae98fb3692f82ebfa4487ca422aea5f4424813aa529 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep hang memleak], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 3c1f49e19999613f45e598d78f2ae6646741e889d00a947e199dcbb51b648eb3 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 78f548367081b7fa3b5b6d6fe170466be231dfd90bf4549410273b086359fea8 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 365205040da4616b80adae4fd5241079d443aebaea0e903c7014ad12c817bdd5 all runs: OK false negative chance: 0.000 testing without sub-chunk 5/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep hang], they are not needed testing commit 5aca7966d2a7255ba92fd5e63268dd767b223aa5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9c4e3562833f0422684e7446bbe933596a2cbc8c498c76c7a7c329097ee84073 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] the chunk can be dropped minimized to 438 configs; suspects: [AF_RXRPC ARCH_ENABLE_MEMORY_HOTREMOVE ATM AX25 BT BT_BREDR BT_HIDP BXT_WC_PMIC_OPREGION CFG80211 CMA DAX DLM DRM DVB_CORE ENCRYPTED_KEYS EXTCON GENEVE GPIOLIB HAMRADIO HAVE_CLK HID_NINTENDO HID_NVIDIA_SHIELD HID_PLAYSTATION HID_SENSOR_HUB HID_SMARTJOYPLUS HID_STEAM HID_THRUSTMASTER IIO INFINIBAND INFINIBAND_ADDR_TRANS INFINIBAND_IPOIB INFINIBAND_USER_ACCESS INFINIBAND_VIRT_DMA INPUT_TABLET INPUT_TOUCHSCREEN INTEL_SCU_IPC INTEL_SOC_PMIC_BXTWC IP_SCTP L2TP LEDS_CLASS_MULTICOLOR LIBNVDIMM MAC80211 MEDIA_COMMON_OPTIONS MEDIA_DIGITAL_TV_SUPPORT MEDIA_PLATFORM_SUPPORT MEDIA_RADIO_SUPPORT MEDIA_SUPPORT MEDIA_USB_SUPPORT MEMORY_HOTPLUG MEMORY_HOTREMOVE MFD_DLN2 MFD_INTEL_PMC_BXT MFD_MT6360 MFD_MT6370 MFD_RETU MMC MTD MTD_UBI NETFILTER_ADVANCED NETFILTER_CONNCOUNT NET_IPGRE NET_IPGRE_DEMUX NFS_V4_1 NF_CONNTRACK_SNMP NF_NAT_PPTP NF_NAT_REDIRECT NF_NAT_SNMP_BASIC NF_NAT_TFTP NF_SOCKET_IPV4 NF_SOCKET_IPV6 NF_TPROXY_IPV4 NF_TPROXY_IPV6 NILFS2_FS NINTENDO_FF NLMON NLS_CODEPAGE_1250 NLS_CODEPAGE_1251 NLS_CODEPAGE_737 NLS_CODEPAGE_775 NLS_CODEPAGE_850 NLS_CODEPAGE_852 NLS_CODEPAGE_855 NLS_CODEPAGE_857 NLS_CODEPAGE_860 NLS_CODEPAGE_861 NLS_CODEPAGE_862 NLS_CODEPAGE_863 NLS_CODEPAGE_864 NLS_CODEPAGE_865 NLS_CODEPAGE_866 NLS_CODEPAGE_869 NLS_CODEPAGE_874 NLS_CODEPAGE_932 NLS_CODEPAGE_936 NLS_CODEPAGE_949 NLS_CODEPAGE_950 NLS_ISO8859_13 NLS_ISO8859_14 NLS_ISO8859_15 NLS_ISO8859_2 NLS_ISO8859_3 NLS_ISO8859_4 NLS_ISO8859_5 NLS_ISO8859_6 NLS_ISO8859_7 NLS_ISO8859_8 NLS_ISO8859_9 NLS_KOI8_R NLS_KOI8_U NLS_MAC_CELTIC NLS_MAC_CENTEURO NLS_MAC_CROATIAN NLS_MAC_CYRILLIC NLS_MAC_GAELIC NLS_MAC_GREEK NLS_MAC_ICELAND NLS_MAC_INUIT NLS_MAC_ROMAN NLS_MAC_ROMANIAN NLS_MAC_TURKISH NLS_UCS2_UTILS NOZOMI NTFS3_FS NTFS3_FS_POSIX_ACL NTFS3_LZX_XPRESS NULL_TTY NUMA_BALANCING NUMA_BALANCING_DEFAULT_ENABLED NUMA_EMU NUMA_KEEP_MEMINFO NVDIMM_DAX NVDIMM_KEYS NVDIMM_PFN NVIDIA_SHIELD_FF NVME_CORE NVME_FABRICS NVME_FC NVME_MULTIPATH NVME_RDMA NVME_TARGET NVME_TARGET_FC NVME_TARGET_FCLOOP NVME_TARGET_LOOP NVME_TARGET_RDMA NVME_TARGET_TCP NVME_TCP N_GSM N_HDLC OCFS2_DEBUG_FS OCFS2_FS OCFS2_FS_O2CB OCFS2_FS_STATS OCFS2_FS_USERSPACE_CLUSTER OF_GPIO OF_PMEM OMFS_FS OPENVSWITCH OPENVSWITCH_GENEVE OPENVSWITCH_GRE OPENVSWITCH_VXLAN ORANGEFS_FS OSF_PARTITION OVERLAY_FS OVERLAY_FS_DEBUG OVERLAY_FS_INDEX OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW OVERLAY_FS_REDIRECT_DIR PACKET_DIAG PAGE_IDLE_FLAG PAGE_REPORTING PAHOLE_HAS_LANG_EXCLUDE PAHOLE_HAS_SPLIT_BTF PARPORT PARPORT_NOT_PC PARTITION_ADVANCED PCCARD PCCARD_NONSTATIC PCIEAER PCI_ENDPOINT PCI_IOV PCMCIA PCMCIA_LOAD_CIS PERCPU_STATS PERSISTENT_KEYRINGS PHYLINK PHY_CPCAP_USB PHY_QCOM_USB_HS PHY_QCOM_USB_HSIC PHY_SAMSUNG_USB2 PHY_TUSB1210 PKCS7_TEST_KEY PKCS8_PRIVATE_KEY_PARSER PLAYSTATION_FF PLFXLC PMIC_OPREGION PM_CLK PNFS_BLOCK PNFS_FILE_LAYOUT PNFS_FLEXFILE_LAYOUT PPP PPPOATM PPPOE PPPOE_HASH_BITS_1 PPPOL2TP PPP_ASYNC PPP_BSDCOMP PPP_DEFLATE PPP_FILTER PPP_MPPE PPP_MULTILINK PPP_SYNC_TTY PPTP PREEMPT PREEMPT_NOTIFIERS PROC_CHILDREN PSAMPLE PSI PSTORE PSTORE_COMPRESS QCOM_QMI_HELPERS QNX4FS_FS QNX6FS_FS QRTR QRTR_TUN RADIO_ADAPTERS RADIO_SHARK RADIO_SHARK2 RADIO_TEA575X RAID6_PQ RAID_ATTRS RC_ATI_REMOTE RC_CORE RC_DEVICES RC_XBOX_DVD RDMA_RXE RDMA_SIW RDS RDS_RDMA RDS_TCP READ_ONLY_THP_FOR_FS REALTEK_AUTOPM REED_SOLOMON REED_SOLOMON_DEC8 REGMAP REGMAP_I2C REGMAP_IRQ REGMAP_MMIO REGMAP_SPI REGULATOR REGULATOR_FIXED_VOLTAGE REGULATOR_TWL4030 RESET_CONTROLLER RFKILL RFKILL_INPUT RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 RMI4_F3A ROMFS_BACKED_BY_BOTH ROMFS_FS ROMFS_ON_BLOCK ROMFS_ON_MTD ROSE RTC_DRV_HID_SENSOR_TIME RXKAD SCHED_CORE SCREEN_INFO SCSI_FC_ATTRS SCSI_HPSA SCSI_ISCSI_ATTRS SCSI_LOGGING SCSI_NETLINK SCSI_SAS_ATA SCSI_SAS_ATTRS SCSI_SAS_LIBSAS SCSI_SCAN_ASYNC SCSI_SRP_ATTRS SCTP_COOKIE_HMAC_MD5 SCTP_COOKIE_HMAC_SHA1 SCTP_DEFAULT_COOKIE_HMAC_MD5 SECONDARY_TRUSTED_KEYRING SECURITY_INFINIBAND SECURITY_NETWORK_XFRM SENSORS_AQUACOMPUTER_D5NEXT SENSORS_CORSAIR_CPRO SENSORS_CORSAIR_PSU SENSORS_GIGABYTE_WATERFORCE SENSORS_NZXT_KRAKEN2 SENSORS_NZXT_SMART2 SENSORS_POWERZ SERIAL_DEV_BUS SERIAL_DEV_CTRL_TTYPORT SERIAL_MCTRL_GPIO SGI_PARTITION SIGNATURE SIGNED_PE_FILE_VERIFICATION SKB_DECRYPTED SLHC SLIP SLIP_COMPRESSED SLIP_MODE_SLIP6 SLIP_SMART SMARTJOYPLUS_FF SMBFS SMB_SERVER SMC SMC_DIAG SMSC_PHY SMS_SDIO_DRV SMS_SIANO_DEBUGFS SMS_SIANO_MDTV SMS_SIANO_RC SMS_USB_DRV SND SND_ALOOP SND_BCD2000 SND_CTL_FAST_LOOKUP SND_CTL_LED SND_DEBUG SND_DMA_SGBUF SND_DRIVERS SND_DUMMY SND_DYNAMIC_MINORS SND_HDA SND_HDA_CODEC_ALC260 SND_HDA_CODEC_ALC262 SND_HDA_CODEC_ALC268 SND_HDA_CODEC_ALC269 SND_HDA_CODEC_ALC662 SND_HDA_CODEC_ALC680 SND_HDA_CODEC_ALC861 SND_HDA_CODEC_ALC861VD SND_HDA_CODEC_ALC880 SND_HDA_CODEC_ALC882 SND_HDA_CODEC_ANALOG SND_HDA_CODEC_CA0110 SND_HDA_CODEC_CA0132 SND_HDA_CODEC_CIRRUS SND_HDA_CODEC_CMEDIA SND_HDA_CODEC_CONEXANT SND_HDA_CODEC_CS420X SND_HDA_CODEC_CS421X SND_HDA_CODEC_HDMI SND_HDA_CODEC_HDMI_ATI SND_HDA_CODEC_HDMI_GENERIC SND_HDA_CODEC_HDMI_INTEL SND_HDA_CODEC_HDMI_NVIDIA SND_HDA_CODEC_HDMI_NVIDIA_MCP SND_HDA_CODEC_HDMI_SIMPLE SND_HDA_CODEC_HDMI_TEGRA SND_HDA_CODEC_REALTEK SND_HDA_CODEC_REALTEK_LIB SND_HDA_CODEC_SI3054 SND_HDA_CODEC_SIGMATEL SND_HDA_CODEC_VIA SND_HDA_COMPONENT SND_HDA_CORE SND_HDA_GENERIC SND_HDA_GENERIC_LEDS SND_HDA_HWDEP SND_HDA_I915 SND_HDA_INPUT_BEEP SND_HDA_INTEL SND_HDA_PATCH_LOADER SND_HDA_RECONFIG SND_HDA_SCODEC_COMPONENT SND_HRTIMER SND_HWDEP SND_INTEL_DSP_CONFIG SND_INTEL_NHLT SND_INTEL_SOUNDWIRE_ACPI SND_JACK SND_JACK_INPUT_DEV SND_MIXER_OSS SND_OSSEMUL SND_PCI SND_PCM SND_PCMCIA SND_PCM_ELD SND_PCM_OSS SND_PCM_OSS_PLUGINS SND_PCM_TIMER SND_PCM_XRUN_DEBUG SND_PROC_FS SND_RAWMIDI SND_SEQUENCER SND_SEQUENCER_OSS SND_SEQ_DEVICE SND_SEQ_DUMMY SND_SEQ_HRTIMER_DEFAULT SND_SEQ_MIDI SND_SEQ_MIDI_EVENT SND_SEQ_VIRMIDI SND_SOC SND_SOC_I2C_AND_SPI SND_SOC_SDCA_OPTIONAL SND_SUPPORT_OLD_API SND_TIMER SND_UMP SND_UMP_LEGACY_RAWMIDI SND_USB SND_USB_6FIRE SND_USB_AUDIO SND_USB_AUDIO_MIDI_V2 SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_USB_CAIAQ SND_USB_CAIAQ_INPUT SND_USB_HIFACE SND_USB_LINE6 SND_USB_POD SND_USB_PODHD SND_USB_TONEPORT SND_USB_UA101 SND_USB_US122L SND_USB_USX2Y SND_USB_VARIAX SND_VERBOSE_PROCFS SND_VIRMIDI SND_VIRTIO SND_VMASTER SND_X86 SOCK_VALIDATE_XMIT SOLARIS_X86_PARTITION SONY_FF SOUND SOUNDWIRE SOUND_OSS_CORE SOUND_OSS_CORE_PRECLAIM SPI SPI_DLN2 SPI_DYNAMIC SPI_LJCA SPI_MASTER SQUASHFS SQUASHFS_4K_DEVBLK_SIZE SQUASHFS_COMPILE_DECOMP_MULTI SQUASHFS_DECOMP_MULTI SQUASHFS_FILE_DIRECT SQUASHFS_LZ4 SQUASHFS_LZO SQUASHFS_XATTR SQUASHFS_XZ SQUASHFS_ZLIB SQUASHFS_ZSTD SSB SSB_PCIHOST_POSSIBLE SSB_PCMCIAHOST_POSSIBLE SSB_SDIOHOST_POSSIBLE STEAM_FF STP STREAM_PARSER SUNRPC_BACKCHANNEL SUN_PARTITION SURFACE_AGGREGATOR SURFACE_AGGREGATOR_BUS SURFACE_AGGREGATOR_REGISTRY SURFACE_HID SURFACE_HID_CORE SURFACE_KBD SW_SYNC SYSFB SYSFS_SYSCALL SYSV68_PARTITION TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_HANWANG TABLET_USB_KBTAB TABLET_USB_PEGASUS TAHVO_USB TAHVO_USB_HOST_BY_DEFAULT TCG_CRB TCG_TIS TCG_TIS_CORE TCG_TPM TCP_CONG_BBR TCP_CONG_BIC TCP_CONG_CDG TCP_CONG_DCTCP TCP_CONG_HSTCP TCP_CONG_HTCP TCP_CONG_HYBLA TCP_CONG_ILLINOIS TCP_CONG_LP TCP_CONG_NV TCP_CONG_SCALABLE TCP_CONG_VEGAS TCP_CONG_VENO TCP_CONG_WESTWOOD TCP_CONG_YEAH TEE TEXTSEARCH TEXTSEARCH_BM TEXTSEARCH_FSM TEXTSEARCH_KMP THP_SWAP THRUSTMASTER_FF TIPC TIPC_CRYPTO TIPC_DIAG TIPC_MEDIA_IB TIPC_MEDIA_UDP TLS TLS_TOE TMPFS_QUOTA TOUCHSCREEN_SUR40 TOUCHSCREEN_USB_3M TOUCHSCREEN_USB_COMPOSITE TOUCHSCREEN_USB_DMC_TSC10 TOUCHSCREEN_USB_E2I TOUCHSCREEN_USB_EASYTOUCH TOUCHSCREEN_USB_EGALAX TOUCHSCREEN_USB_ELO TOUCHSCREEN_USB_ETT_TC45USB TOUCHSCREEN_USB_ETURBO TOUCHSCREEN_USB_GENERAL_TOUCH TOUCHSCREEN_USB_GOTOP TOUCHSCREEN_USB_GUNZE TOUCHSCREEN_USB_IDEALTEK TOUCHSCREEN_USB_IRTOUCH TOUCHSCREEN_USB_ITM TOUCHSCREEN_USB_JASTEC TOUCHSCREEN_USB_NEXIO TOUCHSCREEN_USB_PANJIT TOUCHSCREEN_USB_ZYTRONIC TRACEFS_AUTOMOUNT_DEPRECATED TRANSPARENT_HUGEPAGE TRANSPARENT_HUGEPAGE_MADVISE TTPCI_EEPROM TTY_PRINTK TUN_VNET_CROSS_LE TWL4030_CORE TYPEC TYPEC_ANX7411 TYPEC_DP_ALTMODE TYPEC_FUSB302 TYPEC_HD3SS3220 TYPEC_MT6360 TYPEC_MUX_FSA4480 TYPEC_MUX_GPIO_SBU TYPEC_MUX_INTEL_PMC TYPEC_MUX_NB7VPQ904M TYPEC_MUX_PTN36502 TYPEC_MUX_WCD939X_USBSS TYPEC_NVIDIA_ALTMODE TYPEC_RT1711H TYPEC_RT1719 TYPEC_STUSB160X TYPEC_TCPCI TYPEC_TCPCI_MAXIM TYPEC_TCPCI_MT6370 TYPEC_TCPM TYPEC_TPS6598X TYPEC_UCSI TYPEC_WCOVE TYPEC_WUSB3801 UBIFS_ATIME_SUPPORT UBIFS_FS UBIFS_FS_ADVANCED_COMPR UBIFS_FS_LZO UBIFS_FS_SECURITY UBIFS_FS_XATTR UBIFS_FS_ZLIB UBIFS_FS_ZSTD UCSI_ACPI UCSI_CCG UCSI_STM32G0 UDF_FS UDMABUF UFS_FS UFS_FS_WRITE UHID ULTRIX_PARTITION UNICODE UNIXWARE_DISKLABEL UNIX_DIAG USB4 USB4_NET USBIP_CORE USBIP_HOST USBIP_VHCI_HCD USB_DWC2 USB_GADGET USB_LJCA USB_MUSB_HDRC USB_ROLE_SWITCH USB_STORAGE_REALTEK USB_ULPI_BUS VIDEO_DEV VXLAN WIRELESS WLAN WLAN_VENDOR_PURELIFI ZONE_DEVICE] disabling configs for [hang memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed picked [v6.16 v6.15 v6.14 v6.12 v6.10 v6.8 v6.6 v6.4 v6.1 v5.18 v5.15 v5.12 v5.9 v5.6 v5.3 v5.0 v4.19] out of 39 release tags testing release v6.16 testing commit 038d61fd642278bab63ee8ef722c50d10ab01e8f gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: cf169b19ae7d497d04c35a10b9b88dfbc6e139f41d7eaf1c06e3aa7f1ab32992 all runs: crashed: general protection fault in __smc_diag_dump representative crash: general protection fault in __smc_diag_dump, types: [DoS] testing release v6.15 testing commit 0ff41df1cb268fc69e703a08a57ee14ae967d0ca gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c5acf75ccf589b0a7f9cba1cfd5c32a72b7c11a5e43a247cc2b59630d81bb89a all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] testing release v6.14 testing commit 38fec10eb60d687e30c8c6b5420d86e8149f7557 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 82e8b8d4a81f68d047768f403328bde16a7d9523c776f2ad1876282eaa3d4513 all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] testing release v6.12 testing commit adc218676eef25575469234709c2d87185ca223a gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 37d020ced417e2c588ee5e3778fcb94e7e31a39073ab452a87580174ce7ce39e all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] testing release v6.10 testing commit 0c3836482481200ead7b416ca80c68a29cfdaabd gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd0f1c913409bf98ba6bf1ded86698d62b3cdc61ad5534f7709602d09901f1f7 all runs: OK false negative chance: 0.000 # git bisect start adc218676eef25575469234709c2d87185ca223a 0c3836482481200ead7b416ca80c68a29cfdaabd Bisecting: 14868 revisions left to test after this (roughly 14 steps) [703896be3015db7f8fd8822b18909a5914209a70] Merge tag 'sound-6.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 703896be3015db7f8fd8822b18909a5914209a70 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 39f243a7bd712a8dafabb81abfb6b1f261b4d691518415a3b52b79427aa49efc all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad 703896be3015db7f8fd8822b18909a5914209a70 Bisecting: 6814 revisions left to test after this (roughly 13 steps) [b3ce7a30847a54a7f96a35e609303d8afecd460b] Merge tag 'drm-next-2024-07-18' of https://gitlab.freedesktop.org/drm/kernel testing commit b3ce7a30847a54a7f96a35e609303d8afecd460b gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 081d18af4cfdd6d290d9e061e74e9d48d311915a70d7dbdaeea20bc5186981b2 all runs: OK false negative chance: 0.000 # git bisect good b3ce7a30847a54a7f96a35e609303d8afecd460b Bisecting: 3536 revisions left to test after this (roughly 12 steps) [7846b618e0a4c3e08888099d1d4512722b39ca99] Merge tag 'rtc-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux testing commit 7846b618e0a4c3e08888099d1d4512722b39ca99 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 23c24daf683cecb167ca847c7576afcf0344a9d2528ad9383a48098cd94316c0 run #0: ignore: lost connection to test machine 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 false negative chance: 0.000 # git bisect good 7846b618e0a4c3e08888099d1d4512722b39ca99 Bisecting: 1754 revisions left to test after this (roughly 11 steps) [183d46ff422ef9f3d755b6808ef3faa6d009ba3a] Merge tag 'net-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 183d46ff422ef9f3d755b6808ef3faa6d009ba3a gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 806dfa92079da549cfbc444aa0bcc881b0d1655cb0e9fd4ba43ff0ac74c7db60 all runs: OK false negative chance: 0.000 # git bisect good 183d46ff422ef9f3d755b6808ef3faa6d009ba3a Bisecting: 876 revisions left to test after this (roughly 10 steps) [6e4436539ae182dc86d57d13849862bcafaa4709] Merge tag 'hid-for-linus-2024081901' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid testing commit 6e4436539ae182dc86d57d13849862bcafaa4709 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5a86b19a7174ac4297ca4f41e2e0ef705417bd633709ff639540ab0f1b299a8c all runs: OK false negative chance: 0.000 # git bisect good 6e4436539ae182dc86d57d13849862bcafaa4709 Bisecting: 435 revisions left to test after this (roughly 9 steps) [0dd5dd63ba91d7bee9d0fbc2a6dc73e595391b4c] Merge tag 'net-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 0dd5dd63ba91d7bee9d0fbc2a6dc73e595391b4c gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fde167dbdc003bf75ad5e8181b8507a34de09a97173ea0a58384b53f39581030 all runs: OK false negative chance: 0.000 # git bisect good 0dd5dd63ba91d7bee9d0fbc2a6dc73e595391b4c Bisecting: 220 revisions left to test after this (roughly 8 steps) [141bb6bc73cf45e8b742d6fafa6734b6d5f82b77] Merge tag 'amd-drm-fixes-6.11-2024-09-05' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes testing commit 141bb6bc73cf45e8b742d6fafa6734b6d5f82b77 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: de93b307c228caa02daa593d716a74358e3ce0aa9781b12dff33679505f1c40d all runs: OK false negative chance: 0.000 # git bisect good 141bb6bc73cf45e8b742d6fafa6734b6d5f82b77 Bisecting: 115 revisions left to test after this (roughly 7 steps) [f95359996ac35206ff24e378052ce564d5bfdc94] Merge tag 'spi-fix-v6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi testing commit f95359996ac35206ff24e378052ce564d5bfdc94 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c01a3e0311c730d0f4b96b5144a3fa462b7fc93de5a7b03bec42f2adc9e35520 all runs: OK false negative chance: 0.000 # git bisect good f95359996ac35206ff24e378052ce564d5bfdc94 Bisecting: 57 revisions left to test after this (roughly 6 steps) [2603d3152b1f646b0ef81a748fb703b799fcf9c3] Merge tag 'wireless-2024-09-04' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless testing commit 2603d3152b1f646b0ef81a748fb703b799fcf9c3 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ea9792e251e29766e9cc271498d7cc95e2c0f7abb55cd263b8d00f813ea3e4b0 all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad 2603d3152b1f646b0ef81a748fb703b799fcf9c3 Bisecting: 30 revisions left to test after this (roughly 5 steps) [646f49684622d0eb87bbbff4313a453421dc4e3d] Merge tag 'linux-can-fixes-for-6.11-20240830' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can testing commit 646f49684622d0eb87bbbff4313a453421dc4e3d gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 28a02b6be40ccf48fd250a6f7bfd84db06b5d8670fbd300950516d4f9a093e8f all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad 646f49684622d0eb87bbbff4313a453421dc4e3d Bisecting: 13 revisions left to test after this (roughly 4 steps) [8de78e00986e883670d79d99d174626e4d4dabc5] Merge patch series "can: mcp251xfd: fix ring/coalescing configuration" testing commit 8de78e00986e883670d79d99d174626e4d4dabc5 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 25942516297fb71baa19ed5d2a034419a7bf79723be3de329fd401f02819387f all runs: OK false negative chance: 0.000 # git bisect good 8de78e00986e883670d79d99d174626e4d4dabc5 Bisecting: 6 revisions left to test after this (roughly 3 steps) [4fa9c5181cfe083d0beefb5157a643560e7bd152] net: mctp-serial: Add kunit test for next_chunk_len() testing commit 4fa9c5181cfe083d0beefb5157a643560e7bd152 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9635eb0522cc45f23365a7e8477948fd99ede5e9d9f8841184e1b83563236cb1 all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad 4fa9c5181cfe083d0beefb5157a643560e7bd152 Bisecting: 2 revisions left to test after this (roughly 2 steps) [1bb3c548e4e3567749d7313e037a934cbadec8ee] Merge branch '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue testing commit 1bb3c548e4e3567749d7313e037a934cbadec8ee gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e1b242807d1b7e2478fd1343cd4113b07a19f3b52f1c418e400182f1fa7482e6 all runs: OK false negative chance: 0.000 # git bisect good 1bb3c548e4e3567749d7313e037a934cbadec8ee Bisecting: 0 revisions left to test after this (roughly 1 step) [fe1910f9337bd46a9343967b547ccab26b4b2c6e] tcp_bpf: fix return value of tcp_bpf_sendmsg() testing commit fe1910f9337bd46a9343967b547ccab26b4b2c6e gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 64184e098e1b7d386438df6e115b029ebcf29ba00862f0301ad0b6b1996d9db3 run #0: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #1: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #2: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #3: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #4: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #5: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #6: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #7: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #8: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump run #9: OK representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad fe1910f9337bd46a9343967b547ccab26b4b2c6e Bisecting: 0 revisions left to test after this (roughly 0 steps) [98d4435efcbf37801a3246fb53856c4b934a2613] net/smc: prevent NULL pointer dereference in txopt_get testing commit 98d4435efcbf37801a3246fb53856c4b934a2613 gcc compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: e472bc94625423ede902f4aa6611c2f5c0a0012dd2c9d7f109c27c3d76983ea7 all runs: crashed: BUG: unable to handle kernel paging request in __smc_diag_dump representative crash: BUG: unable to handle kernel paging request in __smc_diag_dump, types: [MEMORY_SAFETY_BUG] # git bisect bad 98d4435efcbf37801a3246fb53856c4b934a2613 98d4435efcbf37801a3246fb53856c4b934a2613 is the first bad commit commit 98d4435efcbf37801a3246fb53856c4b934a2613 Author: Jeongjun Park Date: Thu Aug 29 12:56:48 2024 +0900 net/smc: prevent NULL pointer dereference in txopt_get Since smc_inet6_prot does not initialize ipv6_pinfo_offset, inet6_create() copies an incorrect address value, sk + 0 (offset), to inet_sk(sk)->pinet6. In addition, since inet_sk(sk)->pinet6 and smc_sk(sk)->clcsock practically point to the same address, when smc_create_clcsk() stores the newly created clcsock in smc_sk(sk)->clcsock, inet_sk(sk)->pinet6 is corrupted into clcsock. This causes NULL pointer dereference and various other memory corruptions. To solve this problem, you need to initialize ipv6_pinfo_offset, add a smc6_sock structure, and then add ipv6_pinfo as the second member of the smc_sock structure. Reported-by: syzkaller Fixes: d25a92ccae6b ("net/smc: Introduce IPPROTO_SMC") Signed-off-by: Jeongjun Park Reviewed-by: Eric Dumazet Signed-off-by: David S. Miller net/smc/smc.h | 3 +++ net/smc/smc_inet.c | 8 +++++++- 2 files changed, 10 insertions(+), 1 deletion(-) accumulated error probability: 0.00 culprit signature: e472bc94625423ede902f4aa6611c2f5c0a0012dd2c9d7f109c27c3d76983ea7 parent signature: e1b242807d1b7e2478fd1343cd4113b07a19f3b52f1c418e400182f1fa7482e6 revisions tested: 27, total time: 10h43m51.115417973s (build: 5h28m3.15648064s, test: 4h32m27.469321129s) first bad commit: 98d4435efcbf37801a3246fb53856c4b934a2613 net/smc: prevent NULL pointer dereference in txopt_get recipients (to): ["aha310510@gmail.com" "davem@davemloft.net" "edumazet@google.com"] recipients (cc): [] crash: BUG: unable to handle kernel paging request in __smc_diag_dump BUG: unable to handle page fault for address: 0000000000016018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 10e6c1067 P4D 10e6c1067 PUD 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 UID: 0 PID: 3715 Comm: syz.3.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline] RIP: 0010:__smc_diag_dump.constprop.0+0x108/0x780 net/smc/smc_diag.c:89 Code: 89 e8 29 f8 8d 48 50 31 c0 c1 e9 03 f3 48 ab 48 89 df 0f b7 43 10 88 45 10 e8 b4 24 b3 ff 48 8b 83 f8 04 00 00 48 85 c0 74 65 <48> 8b 40 18 0f b7 40 0e 66 c1 c0 08 66 89 45 14 48 8b 83 f8 04 00 RSP: 0018:ffffc900034077f8 EFLAGS: 00010206 RAX: 0000000000016000 RBX: ffff88810f930000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff8328dd82 RDI: 00000000ffffffff RBP: ffff888110258000 R08: 0000000000000040 R09: 0000000000000000 R10: ffff888110258050 R11: fefefefefefefeff R12: ffff8881022a4c00 R13: ffff888107321690 R14: 0000000000000000 R15: ffff888109d8dd80 FS: 00007fc2e523d6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000016018 CR3: 000000010573a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smc_diag_dump_proto+0xc8/0xe0 net/smc/smc_diag.c:217 smc_diag_dump+0x20/0x50 net/smc/smc_diag.c:234 netlink_dump+0x1c4/0x480 net/netlink/af_netlink.c:2325 __netlink_dump_start+0x222/0x350 net/netlink/af_netlink.c:2440 netlink_dump_start include/linux/netlink.h:339 [inline] smc_diag_handler_dump+0x7e/0x90 net/smc/smc_diag.c:251 __sock_diag_cmd net/core/sock_diag.c:249 [inline] sock_diag_rcv_msg+0x153/0x1a0 net/core/sock_diag.c:287 netlink_rcv_skb+0x53/0x100 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x2a2/0x3e0 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x218/0x480 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x361/0x3a0 net/socket.c:2597 ___sys_sendmsg+0x95/0xe0 net/socket.c:2651 __sys_sendmsg+0x75/0xc0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc2e438eba9 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:00007fc2e523d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc2e45d6090 RCX: 00007fc2e438eba9 RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000000000000003 RBP: 00007fc2e4411e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc2e45d6128 R14: 00007fc2e45d6090 R15: 00007ffe049e1828 Modules linked in: CR2: 0000000000016018 ---[ end trace 0000000000000000 ]--- RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline] RIP: 0010:__smc_diag_dump.constprop.0+0x108/0x780 net/smc/smc_diag.c:89 Code: 89 e8 29 f8 8d 48 50 31 c0 c1 e9 03 f3 48 ab 48 89 df 0f b7 43 10 88 45 10 e8 b4 24 b3 ff 48 8b 83 f8 04 00 00 48 85 c0 74 65 <48> 8b 40 18 0f b7 40 0e 66 c1 c0 08 66 89 45 14 48 8b 83 f8 04 00 RSP: 0018:ffffc900034077f8 EFLAGS: 00010206 RAX: 0000000000016000 RBX: ffff88810f930000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff8328dd82 RDI: 00000000ffffffff RBP: ffff888110258000 R08: 0000000000000040 R09: 0000000000000000 R10: ffff888110258050 R11: fefefefefefefeff R12: ffff8881022a4c00 R13: ffff888107321690 R14: 0000000000000000 R15: ffff888109d8dd80 FS: 00007fc2e523d6c0(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000016018 CR3: 000000010573a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 89 e8 mov %ebp,%eax 2: 29 f8 sub %edi,%eax 4: 8d 48 50 lea 0x50(%rax),%ecx 7: 31 c0 xor %eax,%eax 9: c1 e9 03 shr $0x3,%ecx c: f3 48 ab rep stos %rax,%es:(%rdi) f: 48 89 df mov %rbx,%rdi 12: 0f b7 43 10 movzwl 0x10(%rbx),%eax 16: 88 45 10 mov %al,0x10(%rbp) 19: e8 b4 24 b3 ff call 0xffb324d2 1e: 48 8b 83 f8 04 00 00 mov 0x4f8(%rbx),%rax 25: 48 85 c0 test %rax,%rax 28: 74 65 je 0x8f * 2a: 48 8b 40 18 mov 0x18(%rax),%rax <-- trapping instruction 2e: 0f b7 40 0e movzwl 0xe(%rax),%eax 32: 66 c1 c0 08 rol $0x8,%ax 36: 66 89 45 14 mov %ax,0x14(%rbp) 3a: 48 rex.W 3b: 8b .byte 0x8b 3c: 83 f8 04 cmp $0x4,%eax