fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.

fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.

kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure kernel: use after free due to race condition in the video driver leads to local privilege escalation kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c causing denial of service kernel: use-after-free in drivers/bluetooth/hci_ldisc.c kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c kernel: memory leak in af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in drivers/net/wireless/marvell/mwifiex/pcie.c allows to cause DoS kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c allow for a DoS kernel: A memory leak in the rtl8xxxu_submit_int_urb() function in drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c allows for a DoS kernel: A memory leak in the predicate_parse() function in kernel/trace/trace_events_filter.c allows for a DoS kernel: out-of-bounds…

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-5.3, Ubuntu:18.04:LTS: linux-hwe, Ubuntu:18.04:LTS: linux-raspi2-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp-edge, Ubuntu:18.04:LTS: linux-hwe-edge, Ubuntu:20.04:LTS: linux-azure-fde and 8 more

fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um Administratorrechte zu erlangen, einen Denial of Service Zustand herbeizuführen oder um nicht spezifizierte Auswirkungen zu erzielen.