In the Linux kernel, the following vulnerability has been resolved:

perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()

pci_get_device() will increase the reference count for the returned 'dev'. We need to call pci_dev_put() to decrease the reference count. Since 'dev' is only used in pci_read_config_dword(), let's add pci_dev_put() right after it.

In the Linux kernel, the following vulnerability has been resolved:

perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()

pci_get_device() will increase the reference count for the returned 'dev'. We need to call pci_dev_put() to decrease the reference count. Since 'dev' is only used in pci_read_config_dword(), let's add pci_dev_put() right after it.

security update for kernel

kernel: when setting font with malicious data by ioctl PIO_FONT, kernel will write memory out of bounds kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c kernel: perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() kernel: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map() kernel: save/restore speculative MSRs during S3 suspend/resume kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter Kernel: bluetooth: Unauthorized management command execution kernel: OOB access in the Linux kernel's XFS subsystem kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests hw: amd: Cross-Process Information Leak kernel: tls: race condition in do_tls_getsockopt may lead to use-after-free or NULL pointer dereference kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() kernel: buffer overflow in ceph file net/ceph/messenger_v2.c

Security update for the Linux Kernel

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.4, Ubuntu:18.04:LTS: linux-azure-5.4, Ubuntu:18.04:LTS: linux-gcp-5.4, Ubuntu:18.04:LTS: linux-hwe-5.4, Ubuntu:18.04:LTS: linux-ibm-5.4, Ubuntu:18.04:LTS: linux-oracle-5.4, Ubuntu:18.04:LTS: linux-raspi-5.4, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3 and 126 more

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox() pci_get_device() will increase the reference count for the returned 'dev'. We need to call pci_dev_put() to decrease the reference count. Since 'dev' is only used in pci_read_config_dword(), let's add pci_dev_put() right after it.

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder nicht näher beschriebene Auswirkungen zu erzielen.