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 <kleber.so...@canonical.com> Fri, 05 Nov
2021 12:22:08 +0100
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1788578
Title:
Some test in ubuntu_bpf test_verifier failed on i386 Bionic kernel
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Triaged
Status in linux source package in Bionic:
Fix Released
Bug description:
[Impact]
Narrow loads for bpf_perf_event_data is not possible on 32-bit arches.
[Test case]
Run the bpf test_verifier.
[Potential regression]
Loading sample_period of bpf_perf_event_data may fail. Unaligned access may
lead to processor exceptions on some architectures.
==============================================================
This issue was only spotted on i386 Bionic kernel.
#146/p unpriv: spill/fill of different pointers ldx FAIL
Unexpected error message!
0: (bf) r6 = r10
1: (07) r6 += -8
2: (15) if r1 == 0x0 goto pc+3
R1=ctx(id=0,off=0,imm=0) R6=fp-8 R10=fp0
3: (bf) r2 = r10
4: (07) r2 += -76
5: (7b) *(u64 *)(r6 +0) = r2
6: (55) if r1 != 0x0 goto pc+1
R1=ctx(id=0,off=0,imm=0) R2=fp-76 R6=fp-8 R10=fp0 fp-8=fp
7: (7b) *(u64 *)(r6 +0) = r1
8: (79) r1 = *(u64 *)(r6 +0)
9: (79) r1 = *(u64 *)(r1 +68)
#352/p check bpf_perf_event_data->sample_period byte load permitted FAIL
Failed to load prog 'Permission denied'!
0: (b7) r0 = 0
1: (71) r0 = *(u8 *)(r1 +68)
invalid bpf_context access off=68 size=1
#353/p check bpf_perf_event_data->sample_period half load permitted FAIL
Failed to load prog 'Permission denied'!
0: (b7) r0 = 0
1: (69) r0 = *(u16 *)(r1 +68)
invalid bpf_context access off=68 size=2
#354/p check bpf_perf_event_data->sample_period word load permitted FAIL
Failed to load prog 'Permission denied'!
0: (b7) r0 = 0
1: (61) r0 = *(u32 *)(r1 +68)
invalid bpf_context access off=68 size=4
#355/p check bpf_perf_event_data->sample_period dword load permitted FAIL
Failed to load prog 'Permission denied'!
0: (b7) r0 = 0
1: (79) r0 = *(u64 *)(r1 +68)
invalid bpf_context access off=68 size=8
Summary: 708 PASSED, 5 FAILED
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-32-generic 4.15.0-32.35
ProcVersionSignature: User Name 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic i686
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Aug 23 08:23 seq
crw-rw---- 1 root audio 116, 33 Aug 23 08:23 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CurrentDmesg:
Date: Thu Aug 23 08:41:26 2018
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb:
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:
ProcFB: 0 mgadrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-32-generic
root=UUID=7b91a2b8-2e02-407e-a51d-766f6d969020 ro
RelatedPackageVersions:
linux-restricted-modules-4.15.0-32-generic N/A
linux-backports-modules-4.15.0-32-generic N/A
linux-firmware 1.173.1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.2
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.
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