Comment 7 for bug 1947161

This bug was fixed in the package linux - 4.15.0-163.171

---------------
linux (4.15.0-163.171) bionic; urgency=medium

  * bionic/linux: 4.15.0-163.171 -proposed tracker (LP: #1949874)

  * Packaging resync (LP: #1786013)
    - [Packaging] update Ubuntu.md
    - debian/dkms-versions -- update from kernel-versions (main/2021.11.08)

  * Unable to build net/reuseport_bpf and other tests in ubuntu_kernel_selftests
    on Bionic with make command (LP: #1949889)
    - selftests: Fix loss of test output in run_kselftests.sh
    - selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP headers
    - selftests: fix headers_install circular dependency
    - selftests: fix bpf build/test workflow regression when KBUILD_OUTPUT is set
    - selftests: vm: Fix test build failure when built by itself

  * KVM emulation failure when booting into VM crash kernel with multiple CPUs
    (LP: #1948862)
    - KVM: x86: Properly reset MMU context at vCPU RESET/INIT

  * aufs: kernel bug with apparmor and fuseblk (LP: #1948470)
    - SAUCE: aufs: bugfix, stop omitting path->mnt

  * ebpf: bpf_redirect fails with ip6 gre interfaces (LP: #1947164)
    - net: handle ARPHRD_IP6GRE in dev_is_mac_header_xmit()

  * require CAP_NET_ADMIN to attach N_HCI ldisc (LP: #1949516)
    - Bluetooth: hci_ldisc: require CAP_NET_ADMIN to attach N_HCI ldisc

  * ACL updates on OCFS2 are not revalidated (LP: #1947161)
    - ocfs2: fix remounting needed after setfacl command

  * ppc64 BPF JIT mod by 1 will not return 0 (LP: #1948351)
    - powerpc/bpf: Fix BPF_MOD when imm == 1

  * Drop "UBUNTU: SAUCE: cachefiles: Page leaking in
    cachefiles_read_backing_file while vmscan is active" (LP: #1947709)
    - Revert "UBUNTU: SAUCE: cachefiles: Page leaking in
      cachefiles_read_backing_file while vmscan is active"
    - cachefiles: Fix page leak in cachefiles_read_backing_file while vmscan is
      active

  * Some test in ubuntu_bpf test_verifier failed on i386 Bionic kernel
    (LP: #1788578)
    - bpf: fix context access in tracing progs on 32 bit archs

  * test_bpf.sh from ubuntu_kernel_selftests.net from linux ADT test failure
    with linux/4.15.0-149.153 i386 (Segmentation fault) (LP: #1934414)
    - selftests/bpf: make test_verifier run most programs
    - bpf: add couple of test cases for div/mod by zero
    - bpf: add further test cases around div/mod and others

  * Bionic update: upstream stable patchset 2021-11-02 (LP: #1949512)
    - usb: gadget: r8a66597: fix a loop in set_feature()
    - usb: musb: tusb6010: uninitialized data in tusb_fifo_write_unaligned()
    - cifs: fix incorrect check for null pointer in header_assemble
    - xen/x86: fix PV trap handling on secondary processors
    - usb-storage: Add quirk for ScanLogic SL11R-IDE older than 2.6c
    - USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter
    - staging: greybus: uart: fix tty use after free
    - Re-enable UAS for LaCie Rugged USB3-FW with fk quirk
    - USB: serial: mos7840: remove duplicated 0xac24 device ID
    - USB: serial: option: add Telit LN920 compositions
    - USB: serial: option: remove duplicate USB device ID
    - USB: serial: option: add device id for Foxconn T99W265
    - mcb: fix error handling in mcb_alloc_bus()
    - serial: mvebu-uart: fix driver's tx_empty callback
    - net: hso: fix muxed tty registration
    - bnxt_en: Fix TX timeout when TX ring size is set to the smallest
    - net/mlx4_en: Don't allow aRFS for encapsulated packets
    - scsi: iscsi: Adjust iface sysfs attr detection
    - thermal/core: Potential buffer overflow in thermal_build_list_of_policies()
    - irqchip/gic-v3-its: Fix potential VPE leak on error
    - md: fix a lock order reversal in md_alloc
    - blktrace: Fix uaf in blk_trace access after removing by sysfs
    - net: macb: fix use after free on rmmod
    - net: stmmac: allow CSR clock of 300MHz
    - m68k: Double cast io functions to unsigned long
    - xen/balloon: use a kernel thread instead a workqueue
    - compiler.h: Introduce absolute_pointer macro
    - net: i825xx: Use absolute_pointer for memcpy from fixed memory location
    - sparc: avoid stringop-overread errors
    - qnx4: avoid stringop-overread errors
    - parisc: Use absolute_pointer() to define PAGE0
    - arm64: Mark __stack_chk_guard as __ro_after_init
    - alpha: Declare virt_to_phys and virt_to_bus parameter as pointer to volatile
    - net: 6pack: Fix tx timeout and slot time
    - spi: Fix tegra20 build with CONFIG_PM=n
    - arm64: dts: marvell: armada-37xx: Extend PCIe MEM space
    - PCI: aardvark: Fix checking for PIO Non-posted Request
    - PCI: aardvark: Fix checking for PIO status
    - xen/balloon: fix balloon kthread freezing
    - qnx4: work around gcc false positive warning bug
    - tty: Fix out-of-bound vmalloc access in imageblit
    - cpufreq: schedutil: Use kobject release() method to free sugov_tunables
    - cpufreq: schedutil: Destroy mutex before kobject_put() frees the memory
    - mac80211: fix use-after-free in CCMP/GCMP RX
    - ipvs: check that ip_vs_conn_tab_bits is between 8 and 20
    - mac80211: Fix ieee80211_amsdu_aggregate frag_tail bug
    - mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap
    - sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb
    - hwmon: (tmp421) fix rounding for negative values
    - e100: fix length calculation in e100_get_regs_len
    - e100: fix buffer overrun in e100_get_regs
    - scsi: csiostor: Add module softdep on cxgb4
    - af_unix: fix races in sk_peer_pid and sk_peer_cred accesses
    - ipack: ipoctal: fix stack information leak
    - ipack: ipoctal: fix tty registration race
    - ipack: ipoctal: fix tty-registration error handling
    - ipack: ipoctal: fix missing allocation-failure check
    - ipack: ipoctal: fix module reference leak
    - ext4: fix potential infinite loop in ext4_dx_readdir()
    - net: udp: annotate data race around udp_sk(sk)->corkflag
    - EDAC/synopsys: Fix wrong value type assignment for edac_mode
    - ARM: 9077/1: PLT: Move struct plt_entries definition to header
    - ARM: 9078/1: Add warn suppress parameter to arm_gen_branch_link()
    - ARM: 9079/1: ftrace: Add MODULE_PLTS support
    - ARM: 9098/1: ftrace: MODULE_PLT: Fix build problem without DYNAMIC_FTRACE
    - arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
    - hso: fix bailout in error case of probe
    - usb: hso: fix error handling code of hso_create_net_device
    - usb: hso: remove the bailout parameter
    - crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd()
    - HID: betop: fix slab-out-of-bounds Write in betop_probe
    - netfilter: ipset: Fix oversized kvmalloc() calls
    - HID: usbhid: free raw_report buffers in usbhid_stop
    - cred: allow get_cred() and put_cred() to be given NULL.
    - gpio: uniphier: Fix void functions to remove return value
    - tty: synclink_gt, drop unneeded forward declarations
    - tty: synclink_gt: rename a conflicting function name
    - drm/amd/display: Pass PCI deviceid into DC
    - hwmon: (tmp421) Replace S_<PERMS> with octal values
    - hwmon: (tmp421) report /PVLD condition as fault

  * ACL updates on OCFS2 are not revalidated (LP: #1947161) // Bionic update:
    upstream stable patchset 2021-11-02 (LP: #1949512)
    - ocfs2: drop acl cache for directories too

 -- Kleber Sacilotto de Souza <email address hidden> Fri, 05 Nov 2021 12:22:08 +0100