Sicherheit: Mehrere Probleme in Linux RT Kernel

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SUSE Security Update: Security update for the Linux RT Kernel
______________________________________________________________________________

Announcement ID: SUSE-SU-2022:0555-1
Rating: critical
References: #1065729 #1071995 #1082555 #1163405 #1177599
#1183405 #1184209 #1185377 #1186207 #1186222
#1187428 #1187723 #1188605 #1190973 #1192729
#1193096 #1193234 #1193235 #1193242 #1193507
#1193660 #1193669 #1193727 #1193767 #1193861
#1193864 #1193867 #1193927 #1194001 #1194027
#1194048 #1194227 #1194302 #1194410 #1194493
#1194516 #1194529 #1194814 #1194880 #1194888
#1194965 #1194985 #1195065 #1195073 #1195254
#1195272 #1195612
Cross-References: CVE-2020-28097 CVE-2021-3564 CVE-2021-39648
CVE-2021-39657 CVE-2021-4083 CVE-2021-4135
CVE-2021-4149 CVE-2021-4197 CVE-2021-4202
CVE-2021-44733 CVE-2021-45095 CVE-2022-0322
CVE-2022-0330 CVE-2022-0435 CVE-2022-22942
CVE-2022-24448
CVSS scores:
CVE-2020-28097 (NVD) : 5.9
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVE-2020-28097 (SUSE): 6.2
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE-2021-3564 (NVD) : 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2021-3564 (SUSE): 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2021-39648 (SUSE): 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVE-2021-39657 (SUSE): 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CVE-2021-4083 (NVD) : 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-4083 (SUSE): 7.4
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2021-4135 (SUSE): 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-4149 (SUSE): 4.7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2021-4197 (SUSE): 6.3
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVE-2021-4202 (SUSE): 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2021-44733 (SUSE): 4.2
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CVE-2021-45095 (NVD) : 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE-2021-45095 (SUSE): 4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2022-0322 (SUSE): 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE-2022-0330 (SUSE): 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-0435 (SUSE): 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVE-2022-22942 (SUSE): 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVE-2022-24448 (NVD) : 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVE-2022-24448 (SUSE): 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products:
SUSE Linux Enterprise Real Time Extension 12-SP5
______________________________________________________________________________

An update that solves 16 vulnerabilities and has 31 fixes
is now available.

Description:

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various
security and bugfixes.

The following security bugs were fixed:

- CVE-2022-0435: Fixed remote stack overflow in net/tipc module that
validate domain record count on input (bsc#1195254).
- CVE-2022-24448: Fixed an issue inside fs/nfs/dir.c if an application
sets the O_DIRECTORY flag, and tries to open a regular file,
nfs_atomic_open() performs a regular lookup (bnc#1195612).
- CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel
HCI device initialization subsystem that could have been used by
attaching malicious HCI TTY Bluetooth devices. A local user could use
this flaw to crash the system (bnc#1186207).
- CVE-2020-28097: Fixed out-of-bounds read in vgacon subsystem that
mishandled software scrollback (bnc#1187723).
- CVE-2021-45095: Fixed refcount leak in pep_sock_accept in
net/phonet/pep.c (bnc#1193867).
- CVE-2022-22942: Fixed stale file descriptors on failed usercopy
(bsc#1195065).
- CVE-2021-39657: Fixed out of bounds read due to a missing bounds check
in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local
information disclosure with System execution privileges needed
(bnc#1193864).
- CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a
race condition in gadget_dev_desc_UDC_show of configfs.c. This could
lead to local information disclosure with System execution privileges
needed. User interaction is not needed for exploitation (bnc#1193861).
- CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c
in the TEE subsystem, that could have occured because of a race
condition in tee_shm_get_from_id during an attempt to free a shared
memory object (bnc#1193767).
- CVE-2022-0330: Fixed flush TLBs before releasing backing store
(bsc#1194880).
- CVE-2022-0322: Fixed SCTP issue with account stream padding length for
reconf chunk (bsc#1194985).
- CVE-2021-4197: Use cgroup open-time credentials for process migraton
perm checks (bsc#1194302).
- CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag
(bsc#1194529).
- CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage
collection for Unix domain socket file handlers when users call close()
and fget() simultaneouslyand can potentially trigger a race condition
(bnc#1193727).
- CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after
error (bsc#1194001).
- CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new
map's value in function nsim_bpf_map_alloc (bsc#1193927).

The following non-security bugs were fixed:

- KVM: remember position in kvm->vcpus array (bsc#1190973).
- KVM: s390: index kvm->arch.idle_mask by vcpu_idx (bsc#1190973).
- SUNRPC: Add basic load balancing to the transport switch - kabi fix.
(bnc#1192729).
- SUNRPC: Add basic load balancing to the transport switch. (bnc#1192729)
- SUNRPC: Fix initialisation of struct rpc_xprt_switch (bnc#1192729).
- SUNRPC: Optimise transport balancing code (bnc#1192729).
- SUNRPC: Replace division by multiplication in calculation of queue
length (bnc#1192729).
- SUNRPC: Skip zero-refcount transports (bnc#1192729).
- USB: serial: option: add Telit FN990 compositions (git-fixes).
- bpf: Verifer, adjust_scalar_min_max_vals to always call
update_reg_bounds() (bsc#1194227).
- crypto: qat - fix undetected PFVF timeout in ACK loop (git-fixes).
- ext4: set csum seed in tmp inode while migrating to extents
(bsc#1195272).
- fget: clarify and improve __fget_files() implementation (bsc#1193727).
- hv_netvsc: Set needed_headroom according to VF (bsc#1193507).
- ibmvnic: Allow extra failures before disabling (bsc#1195073 ltc#195713).
- ibmvnic: do not spin in tasklet (bsc#1195073 ltc#195713).
- ibmvnic: init ->running_cap_crqs early (bsc#1195073 ltc#195713).
- ibmvnic: remove unused ->wait_capability (bsc#1195073 ltc#195713).
- kABI fixup after adding vcpu_idx to struct kvm_cpu (bsc#1190973).
- kabi: mask new member "empty" of struct Qdisc (bsc#1183405).
- kabi: revert drop of Qdisc::atomic_qlen (bsc#1183405).
- kprobes: Limit max data_size of the kretprobe instances (bsc#1193669).
- livepatch: Avoid CPU hogging with cond_resched (bsc#1071995).
- memstick: rtsx_usb_ms: fix UAF (bsc#1194516).
- mm/hwpoison: do not lock page again when me_huge_page() successfully
recovers (bsc#1194814).
- mm/slab: Using proper atomic helper (bsc#1186222).
- moxart: fix potential use-after-free on remove path (bsc#1194516).
- net, xdp: Introduce xdp_init_buff utility routine (bsc#1193507).
- net, xdp: Introduce xdp_prepare_buff utility routine (bsc#1193507).
- net/sched: annotate lockless accesses to qdisc->empty (bsc#1183405).
- net/sched: fix race between deactivation and dequeue for NOLOCK qdisc
(bsc#1183405).
- net/sched: pfifo_fast: fix wrong dereference in pfifo_fast_enqueue
(bsc#1183405).
- net/sched: pfifo_fast: fix wrong dereference when qdisc is reset
(bsc#1183405).
- net: allow retransmitting a TCP packet if original is still in queue
(bsc#1188605 bsc#1187428).
- net: caif: avoid using qdisc_qlen() (bsc#1183405).
- net: cdc_ncm: Allow for dwNtbOutMaxSize to be unset or zero (git-fixes).
- net: dev: introduce support for sch BYPASS for lockless qdisc
(bsc#1183405).
- net: mana: Add RX fencing (bsc#1193507).
- net: mana: Add XDP support (bsc#1193507).
- net: sch_generic: aviod concurrent reset and enqueue op for lockless
qdisc (bsc#1183405).
- net: sched: Avoid using yield() in a busy waiting loop (bsc#1183405).
- net: sched: add barrier to ensure correct ordering for lockless qdisc
(bsc#1183405).
- net: sched: add empty status flag for NOLOCK qdisc (bsc#1183405).
- net: sched: always do stats accounting according to TCQ_F_CPUSTATS
(bsc#1183405).
- net: sched: avoid unnecessary seqcount operation for lockless qdisc
(bsc#1183405).
- net: sched: fix packet stuck problem for lockless qdisc (bsc#1183405).
- net: sched: fix tx action reschedule issue with stopped queue
(bsc#1183405).
- net: sched: fix tx action rescheduling issue during deactivation
(bsc#1183405).
- net: sched: prefer qdisc_is_empty() over direct qlen access
(bsc#1183405).
- net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
(bsc#1183405).
- net: sched: when clearing NOLOCK, clear TCQ_F_CPUSTATS, too
(bsc#1183405).
- net: usb: lan78xx: add Allied Telesis AT29M2-AF (git-fixes).
- net_sched: avoid resetting active qdisc for multiple times (bsc#1183405).
- net_sched: get rid of unnecessary dev_qdisc_reset() (bsc#1183405).
- net_sched: use qdisc_reset() in qdisc_destroy() (bsc#1183405).
- nfs: do not dirty kernel pages read by direct-io (bsc#1194410).
- nvme: add 'iopolicy' module parameter (bsc#1177599 bsc#1193096).
- nvme: return BLK_STS_TRANSPORT unless DNR for NVME_SC_NS_NOT_READY
(bsc#1163405).
- of: Add cpu node iterator for_each_of_cpu_node() (bsc#1065729).
- of: Add device_type access helper functions (bsc#1065729).
- of: Fix cpu node iterator to not ignore disabled cpu nodes (bsc#1065729).
- of: Fix property name in of_node_get_device_type (bsc#1065729).
- of: add node name compare helper functions (bsc#1065729).
- powerpc/perf: Fix data source encodings for L2.1 and L3.1 accesses
(bsc#1065729).
- powerpc/prom_init: Fix improper check of prom_getprop() (bsc#1065729).
- powerpc/pseries/cpuhp: cache node corrections (bsc#1065729).
- powerpc/pseries/cpuhp: delete add/remove_by_count code (bsc#1065729).
- powerpc/pseries/mobility: ignore ibm, platform-facilities updates
(bsc#1065729).
- powerpc/traps: do not enable irqs in _exception (bsc#1065729).
- powerpc: add interrupt_cond_local_irq_enable helper (bsc#1065729).
- s390/cio: make ccw_device_dma_* more robust (bsc#1193242).
- s390/pci: add s390_iommu_aperture kernel parameter (bsc#1193234).
- s390/pci: move pseudo-MMIO to prevent MIO overlap (bsc#1194965).
- select: Fix indefinitely sleeping task in poll_schedule_timeout()
(bsc#1194027).
- tpm: Check for integer overflow in tpm2_map_response_body()
(bsc#1082555).
- tpm: add request_locality before write TPM_INT_ENABLE (bsc#1082555).
- tpm: fix potential NULL pointer access in tpm_del_char_device
(bsc#1184209 ltc#190917 git-fixes bsc#1193660 ltc#195634).
- tracing/kprobes: 'nmissed' not showed correctly for kretprobe
(git-fixes).
- tracing: Fix check for trace_percpu_buffer validity in get_trace_buf()
(git-fixes).
- ucsi_ccg: Check DEV_INT bit only when starting CCG4 (git-fixes).
- usb: core: config: fix validation of wMaxPacketValue entries (git-fixes).
- usbnet: fix error return code in usbnet_probe() (git-fixes).
- usbnet: sanity check for maxpacket (git-fixes).
- vfs: check fd has read access in kernel_read_file_from_fd()
(bsc#1194888).
- virtio: write back F_VERSION_1 before validate (bsc#1193235).
- x86/platform/uv: Add more to secondary CPU kdump info (bsc#1194493).
- xfrm: fix MTU regression (bsc#1185377, bsc#1194048).

Special Instructions and Notes:

Please reboot the system after installing this update.

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation
methods
like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- SUSE Linux Enterprise Real Time Extension 12-SP5:

zypper in -t patch SUSE-SLE-RT-12-SP5-2022-555=1

Package List:

- SUSE Linux Enterprise Real Time Extension 12-SP5 (x86_64):

cluster-md-kmp-rt-4.12.14-10.78.1
cluster-md-kmp-rt-debuginfo-4.12.14-10.78.1
dlm-kmp-rt-4.12.14-10.78.1
dlm-kmp-rt-debuginfo-4.12.14-10.78.1
gfs2-kmp-rt-4.12.14-10.78.1
gfs2-kmp-rt-debuginfo-4.12.14-10.78.1
kernel-rt-4.12.14-10.78.1
kernel-rt-base-4.12.14-10.78.1
kernel-rt-base-debuginfo-4.12.14-10.78.1
kernel-rt-debuginfo-4.12.14-10.78.1
kernel-rt-debugsource-4.12.14-10.78.1
kernel-rt-devel-4.12.14-10.78.1
kernel-rt-devel-debuginfo-4.12.14-10.78.1
kernel-rt_debug-4.12.14-10.78.1
kernel-rt_debug-debuginfo-4.12.14-10.78.1
kernel-rt_debug-debugsource-4.12.14-10.78.1
kernel-rt_debug-devel-4.12.14-10.78.1
kernel-rt_debug-devel-debuginfo-4.12.14-10.78.1
kernel-syms-rt-4.12.14-10.78.1
ocfs2-kmp-rt-4.12.14-10.78.1
ocfs2-kmp-rt-debuginfo-4.12.14-10.78.1

- SUSE Linux Enterprise Real Time Extension 12-SP5 (noarch):

kernel-devel-rt-4.12.14-10.78.1
kernel-source-rt-4.12.14-10.78.1

References:

https://www.suse.com/security/cve/CVE-2020-28097.html
https://www.suse.com/security/cve/CVE-2021-3564.html
https://www.suse.com/security/cve/CVE-2021-39648.html
https://www.suse.com/security/cve/CVE-2021-39657.html
https://www.suse.com/security/cve/CVE-2021-4083.html
https://www.suse.com/security/cve/CVE-2021-4135.html
https://www.suse.com/security/cve/CVE-2021-4149.html
https://www.suse.com/security/cve/CVE-2021-4197.html
https://www.suse.com/security/cve/CVE-2021-4202.html
https://www.suse.com/security/cve/CVE-2021-44733.html
https://www.suse.com/security/cve/CVE-2021-45095.html
https://www.suse.com/security/cve/CVE-2022-0322.html
https://www.suse.com/security/cve/CVE-2022-0330.html
https://www.suse.com/security/cve/CVE-2022-0435.html
https://www.suse.com/security/cve/CVE-2022-22942.html
https://www.suse.com/security/cve/CVE-2022-24448.html
https://bugzilla.suse.com/1065729
https://bugzilla.suse.com/1071995
https://bugzilla.suse.com/1082555
https://bugzilla.suse.com/1163405
https://bugzilla.suse.com/1177599
https://bugzilla.suse.com/1183405
https://bugzilla.suse.com/1184209
https://bugzilla.suse.com/1185377
https://bugzilla.suse.com/1186207
https://bugzilla.suse.com/1186222
https://bugzilla.suse.com/1187428
https://bugzilla.suse.com/1187723
https://bugzilla.suse.com/1188605
https://bugzilla.suse.com/1190973
https://bugzilla.suse.com/1192729
https://bugzilla.suse.com/1193096
https://bugzilla.suse.com/1193234
https://bugzilla.suse.com/1193235
https://bugzilla.suse.com/1193242
https://bugzilla.suse.com/1193507
https://bugzilla.suse.com/1193660
https://bugzilla.suse.com/1193669
https://bugzilla.suse.com/1193727
https://bugzilla.suse.com/1193767
https://bugzilla.suse.com/1193861
https://bugzilla.suse.com/1193864
https://bugzilla.suse.com/1193867
https://bugzilla.suse.com/1193927
https://bugzilla.suse.com/1194001
https://bugzilla.suse.com/1194027
https://bugzilla.suse.com/1194048
https://bugzilla.suse.com/1194227
https://bugzilla.suse.com/1194302
https://bugzilla.suse.com/1194410
https://bugzilla.suse.com/1194493
https://bugzilla.suse.com/1194516
https://bugzilla.suse.com/1194529
https://bugzilla.suse.com/1194814
https://bugzilla.suse.com/1194880
https://bugzilla.suse.com/1194888
https://bugzilla.suse.com/1194965
https://bugzilla.suse.com/1194985
https://bugzilla.suse.com/1195065
https://bugzilla.suse.com/1195073
https://bugzilla.suse.com/1195254
https://bugzilla.suse.com/1195272
https://bugzilla.suse.com/1195612