CVE-2021-47270

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

usb: fix various gadgets null ptr deref on 10gbps cabling.

This avoids a null pointer dereference in f_{ecm,eem,hid,loopback,printer,rndis,serial,sourcesink,subset,tcm} by simply reusing the 5gbps config for 10gbps.(CVE-2021-47270)

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

seg6: fix the iif in the IPv6 socket control block

When an IPv4 packet is received, the ip_rcv_core(...) sets the receiving interface index into the IPv4 socket control block (v5.16-rc4, net/ipv4/ip_input.c line 510):

IPCB(skb)->iif = skb->skb_iif;

If that IPv4 packet is meant to be encapsulated in an outer IPv6+SRH header, the seg6_do_srh_encap(...) performs the required encapsulation. In this case, the seg6_do_srh_encap function clears the IPv6 socket control block (v5.16-rc4 net/ipv6/seg6_iptunnel.c line 163):

memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));

The memset(...) was introduced in commit ef489749aae5 ("ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation") a long time ago (2019-01-29).

Since the IPv6 socket control block and the IPv4 socket control block share the same memory area (skb->cb), the receiving interface index info is lost (IP6CB(skb)->iif is set to zero).

As a side effect, that condition triggers a NULL pointer dereference if commit 0857d6f8c759 ("ipv6: When forwarding count rx stats on the orig netdev") is applied.

To fix that issue, we set the IP6CB(skb)->iif with the index of the receiving interface once again.(CVE-2021-47515)

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

media: mxl111sf: change mutex_init() location

Syzbot reported, that mxl111sf_ctrl_msg() uses uninitialized mutex. The problem was in wrong mutex_init() location.

Previous mutex_init(&state->msg_lock) call was in ->init() function, but dvb_usbv2_init() has this order of calls:

dvb_usbv2_init()
  dvb_usbv2_adapter_init()
    dvb_usbv2_adapter_frontend_init()
      props->frontend_attach()

  props->init()

Since mxl111sf_* devices call mxl111sf_ctrl_msg() in ->frontend_attach() internally we need to initialize state->msg_lock before frontend_attach(). To achieve it, ->probe() call added to all mxl111sf_* devices, which will simply initiaize mutex.(CVE-2021-47583)

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

mac80211: validate extended element ID is present

Before attempting to parse an extended element, verify that the extended element ID is present.(CVE-2021-47611)

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

i40e: Fix queues reservation for XDP

When XDP was configured on a system with large number of CPUs and X722 NIC there was a call trace with NULL pointer dereference.

i40e 0000:87:00.0: failed to get tracking for 256 queues for VSI 0 err -12 i40e 0000:87:00.0: setup of MAIN VSI failed

BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:i40e_xdp+0xea/0x1b0 [i40e] Call Trace: ? i40e_reconfig_rss_queues+0x130/0x130 [i40e] dev_xdp_install+0x61/0xe0 dev_xdp_attach+0x18a/0x4c0 dev_change_xdp_fd+0x1e6/0x220 do_setlink+0x616/0x1030 ? ahci_port_stop+0x80/0x80 ? ata_qc_issue+0x107/0x1e0 ? lock_timer_base+0x61/0x80 ? __mod_timer+0x202/0x380 rtnl_setlink+0xe5/0x170 ? bpf_lsm_binder_transaction+0x10/0x10 ? security_capable+0x36/0x50 rtnetlink_rcv_msg+0x121/0x350 ? rtnl_calcit.isra.0+0x100/0x100 netlink_rcv_skb+0x50/0xf0 netlink_unicast+0x1d3/0x2a0 netlink_sendmsg+0x22a/0x440 sock_sendmsg+0x5e/0x60 __sys_sendto+0xf0/0x160 ? __sys_getsockname+0x7e/0xc0 ? _copy_from_user+0x3c/0x80 ? __sys_setsockopt+0xc8/0x1a0 __x64_sys_sendto+0x20/0x30 do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f83fa7a39e0

This was caused by PF queue pile…

In the Linux kernel, the following vulnerability has been resolved: usb: fix various gadgets null ptr deref on 10gbps cabling. This avoids a null pointer dereference in f_{ecm,eem,hid,loopback,printer,rndis,serial,sourcesink,subset,tcm} by simply reusing the 5gbps config for 10gbps.

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fixed incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26929: Fixed double free of fcport (bsc#1223715).
• CVE-2024-26930: Fixed double free of the ha->vp_map pointer (bsc#1223626).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• NFC: nxp: add NXP1002 (bsc#1185589).
• PCI: rpaphp: Add MODULE_DESCRIPTION (bsc#1176869 ltc#188243).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• md: Replace snprintf with scnprintf (git-fixes).
• netfilter: nf_tables: GC transaction race with abort path (git-fixes).
• netfilter: nf_tables: GC transaction race with netns dismantle (git-fixes).
• netfilter: nf_tables: defer gc run if previous batch is still pending (git-fixes).
• netfilter: nf_tables: fix GC transaction races with netns and netlink event exit path (git-fixes).
• netfilter: nf_tables: fix kdoc warnings after gc rework (git-fixes).
• netfilter: nf_tables: fix memleak when more than 255 elements expired (git-fixes).
• netfilter: nf_tables: mark newset as dead on transaction abort (git-fixes).
• netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout (git-fixes).
• netfilter: nf_tables: nft_set_rbtree: fix spurious insertion failure (git-fixes).
• netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (git-fixes).
• netfilter: nf_tables: skip dead set elements in netlink dump (git-fixes).
• netfilter: nf_tables: use correct lock to protect gc_list (git-fixes).
• netfilter: nft_set_hash: try later when GC hits EAGAIN on iteration (git-fixes).
• netfilter: nft_set_rbtree: Add missing expired checks (git-fixes).
• netfilter: nft_set_rbtree: Detect partial overlap with start endpoint match (git-fixes).
• netfilter: nft_set_rbtree: Detect partial overlaps on insertion (git-fixes).
• netfilter: nft_set_rbtree: Do not account for expired elements on insertion (git-fixes).
• netfilter: nft_set_rbtree: Drop spurious condition for overlap detection on insertion (git-fixes).
• netfilter: nft_set_rbtree: Handle outcomes of tree rotations in overlap detection (git-fixes).
• netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start() (git-fixes). -…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
• CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
• CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
• CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
• CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
• CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
• CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).

The following non-security bugs were fixed:

• af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress (bsc#1223384).
• af_unix: Do not use atomic ops for unix_sk(sk)->inflight (bsc#1223384).
• af_unix: Replace BUG_ON() with WARN_ON_ONCE() (bsc#1223384).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• btrfs: do not start relocation until in progress drops are done (bsc#1222251).
• cifs: add missing spinlock around tcon refcount (bsc#1213476).
• cifs: avoid dup prefix path in dfs_get_automount_devname() (bsc#1213476).
• cifs: avoid race conditions with parallel reconnects (bsc#1213476).
• cifs: avoid re-lookups in dfs_cache_find() (bsc#1213476).
• cifs: avoid use of global locks for high contention data (bsc#1213476).
• cifs: check only tcon status on tcon related functions (bsc#1213476).
• cifs: do all necessary checks for credits within or before locking (bsc#1213476).
• cifs: do not block in dfs_cache_noreq_update_tgthint() (bsc#1213476).
• cifs: do not refresh cached referrals from unactive mounts (bsc#1213476).
• cifs: do not take exclusive lock for updating target hints (bsc#1213476).
• cifs: fix confusing debug message (bsc#1213476).
• cifs: fix missing unload_nls() in smb2_reconnect() (bsc#1213476).
• cifs: fix potential deadlock in cache_refresh_path() (bsc#1213476).
• cifs: fix refresh of cached referrals (bsc#1213476).
• cifs: fix return of uninitialized rc in dfs_cache_update_tgthint() (bsc#1213476).
• cifs: fix source pathname comparison of dfs supers (bsc#1213476).
• cifs: fix status checks in cifs_tree_connect (bsc#1213476).
• cifs: fix use-after-free bug in refresh_cache_worker() (bsc#1213476).
• cifs: get rid of dns resolve worker (bsc#1213476).
• cifs: get rid of mount options string parsing (bsc#1213476).
• cifs: handle cache lookup errors different than -ENOENT (bsc#1213476).
• cifs: ignore ipc reconnect failures during dfs failover (bsc#1213476).
• cifs: match even the scope id for ipv6 addresses (bsc#1213476).
• cifs: optimize reconnect of nested links (bsc#1213476).
• cifs: prevent data race in smb2_reconnect() (bsc#1213476). -…

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

The following security bugs were fixed:

• CVE-2021-47103: net: sock: preserve kabi for sock (bsc#1221010).
• CVE-2021-47191: Fix out-of-bound read in resp_readcap16() (bsc#1222866).
• CVE-2021-47267: usb: fix various gadget panics on 10gbps cabling (bsc#1224993).
• CVE-2021-47270: usb: fix various gadgets null ptr deref on 10gbps cabling (bsc#1224997).
• CVE-2021-47293: net/sched: act_skbmod: Skip non-Ethernet packets (bsc#1224978).
• CVE-2021-47294: netrom: Decrease sock refcount when sock timers expire (bsc#1224977).
• CVE-2021-47297: net: fix uninit-value in caif_seqpkt_sendmsg (bsc#1224976).
• CVE-2021-47309: net: validate lwtstate->data before returning from skb_tunnel_info() (bsc#1224967).
• CVE-2021-47354: drm/sched: Avoid data corruptions (bsc#1225140)
• CVE-2021-47372: net: macb: fix use after free on rmmod (bsc#1225184).
• CVE-2021-47379: blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd (bsc#1225203).
• CVE-2021-47407: KVM: x86: Handle SRCU initialization failure during page track init (bsc#1225306).
• CVE-2021-47418: net_sched: fix NULL deref in fifo_set_limit() (bsc#1225337).
• CVE-2021-47434: xhci: Fix commad ring abort, write all 64 bits to CRCR register (bsc#1225232).
• CVE-2021-47445: drm/msm: Fix null pointer dereference on pointer edp (bsc#1225261)
• CVE-2021-47518: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done (bsc#1225372).
• CVE-2021-47544: tcp: fix page frag corruption on page fault (bsc#1225463).
• CVE-2021-47566: Fix clearing user buffer by properly using clear_user() (bsc#1225514).
• CVE-2021-47571: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() (bsc#1225518).
• CVE-2021-47587: net: systemport: Add global locking for descriptor lifecycle (bsc#1226567).
• CVE-2021-47602: mac80211: track only QoS data frames for admission control (bsc#1226554).
• CVE-2021-47609: firmware: arm_scpi: Fix string overflow in SCPI genpd driver (bsc#1226562)
• CVE-2022-48732: drm/nouveau: fix off by one in BIOS boundary checking (bsc#1226716)
• CVE-2022-48733: btrfs: fix use-after-free after failure to create a snapshot (bsc#1226718).
• CVE-2022-48740: selinux: fix double free of cond_list on error paths (bsc#1226699).
• CVE-2022-48743: net: amd-xgbe: Fix skb data length underflow (bsc#1226705).
• CVE-2022-48756: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable (bsc#1226698)
• CVE-2022-48759: rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev (bsc#1226711).
• CVE-2022-48761: usb: xhci-plat: fix crash when suspend if remote wake enable (bsc#1226701).
• CVE-2022-48772: media: lgdt3306a: Add a check against null-pointer-def (bsc#1226976).
• CVE-2023-52622: ext4: avoid online resizing failures due to oversized flex bg (bsc#1222080).
• CVE-2023-52675: powerpc/imc-pmu: Add a null pointer check in update_events_in_group() (bsc#1224504).
• CVE-2023-52737: btrfs: lock the inode in shared mode before starting fiemap (bsc#1225484).
• CVE-2023-52752: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (bsc#1225487).
• CVE-2023-52754: media: imon: fix access to invalid resource for the second interface (bsc#1225490).
• CVE-2023-52757: Fixed potential deadlock when releasing mids (bsc#1225548).
• CVE-2023-52762: virtio-blk: fix implicit overflow on virtio_max_dma_size (bsc#1225573).
• CVE-2023-52764: media: gspca: cpia1: shift-out-of-bounds in set_flicker (bsc#1225571).
• CVE-2023-52784: bonding: stop the device in bond_setup_by_slave() (bsc#1224946).
• CVE-2023-52832: wifi: mac80211: do not return unset power in ieee80211_get_tx_power() (bsc#1225577).
• CVE-2023-52834: atl1c: Work around the DMA RX overflow issue (bsc#1225599).
• CVE-2023-52835: perf/core: Bail out early if the request AUX area is out of bound (bsc#1225602).
• CVE-2023-52843: llc: verify mac len before reading mac header (bsc#1224951).
• CVE-2023-52845: tipc: Change nla_policy…

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

The following security bugs were fixed:

• CVE-2021-47103: net: sock: preserve kabi for sock (bsc#1221010).
• CVE-2021-47191: Fix out-of-bound read in resp_readcap16() (bsc#1222866).
• CVE-2021-47267: usb: fix various gadget panics on 10gbps cabling (bsc#1224993).
• CVE-2021-47270: usb: fix various gadgets null ptr deref on 10gbps cabling (bsc#1224997).
• CVE-2021-47293: net/sched: act_skbmod: Skip non-Ethernet packets (bsc#1224978).
• CVE-2021-47294: netrom: Decrease sock refcount when sock timers expire (bsc#1224977).
• CVE-2021-47297: net: fix uninit-value in caif_seqpkt_sendmsg (bsc#1224976).
• CVE-2021-47309: net: validate lwtstate->data before returning from skb_tunnel_info() (bsc#1224967).
• CVE-2021-47354: drm/sched: Avoid data corruptions (bsc#1225140)
• CVE-2021-47372: net: macb: fix use after free on rmmod (bsc#1225184).
• CVE-2021-47379: blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd (bsc#1225203).
• CVE-2021-47407: KVM: x86: Handle SRCU initialization failure during page track init (bsc#1225306).
• CVE-2021-47418: net_sched: fix NULL deref in fifo_set_limit() (bsc#1225337).
• CVE-2021-47434: xhci: Fix commad ring abort, write all 64 bits to CRCR register (bsc#1225232).
• CVE-2021-47445: drm/msm: Fix null pointer dereference on pointer edp (bsc#1225261)
• CVE-2021-47518: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done (bsc#1225372).
• CVE-2021-47544: tcp: fix page frag corruption on page fault (bsc#1225463).
• CVE-2021-47566: Fix clearing user buffer by properly using clear_user() (bsc#1225514).
• CVE-2021-47571: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() (bsc#1225518).
• CVE-2021-47587: net: systemport: Add global locking for descriptor lifecycle (bsc#1226567).
• CVE-2021-47602: mac80211: track only QoS data frames for admission control (bsc#1226554).
• CVE-2021-47609: firmware: arm_scpi: Fix string overflow in SCPI genpd driver (bsc#1226562)
• CVE-2022-48732: drm/nouveau: fix off by one in BIOS boundary checking (bsc#1226716)
• CVE-2022-48733: btrfs: fix use-after-free after failure to create a snapshot (bsc#1226718).
• CVE-2022-48740: selinux: fix double free of cond_list on error paths (bsc#1226699).
• CVE-2022-48743: net: amd-xgbe: Fix skb data length underflow (bsc#1226705).
• CVE-2022-48756: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable (bsc#1226698)
• CVE-2022-48759: rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev (bsc#1226711).
• CVE-2022-48761: usb: xhci-plat: fix crash when suspend if remote wake enable (bsc#1226701).
• CVE-2022-48772: media: lgdt3306a: Add a check against null-pointer-def (bsc#1226976).
• CVE-2023-24023: Bluetooth: Add more enc key size check (bsc#1218148).
• CVE-2023-52622: ext4: avoid online resizing failures due to oversized flex bg (bsc#1222080).
• CVE-2023-52675: powerpc/imc-pmu: Add a null pointer check in update_events_in_group() (bsc#1224504).
• CVE-2023-52737: btrfs: lock the inode in shared mode before starting fiemap (bsc#1225484).
• CVE-2023-52752: smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (bsc#1225487).
• CVE-2023-52754: media: imon: fix access to invalid resource for the second interface (bsc#1225490).
• CVE-2023-52757: Fixed potential deadlock when releasing mids (bsc#1225548).
• CVE-2023-52762: virtio-blk: fix implicit overflow on virtio_max_dma_size (bsc#1225573).
• CVE-2023-52764: media: gspca: cpia1: shift-out-of-bounds in set_flicker (bsc#1225571).
• CVE-2023-52784: bonding: stop the device in bond_setup_by_slave() (bsc#1224946).
• CVE-2023-52832: wifi: mac80211: do not return unset power in ieee80211_get_tx_power() (bsc#1225577).
• CVE-2023-52834: atl1c: Work around the DMA RX overflow issue (bsc#1225599).
• CVE-2023-52835: perf/core: Bail out early if the request AUX area is out of bound (bsc#1225602).
• CVE-2023-52843: llc: verify mac len before…

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

The following security bugs were fixed:

• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication Bluetooth might have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access (bsc#1171988).
• CVE-2021-47103: net: sock: preserve kabi for sock (bsc#1221010).
• CVE-2021-47145: btrfs: do not BUG_ON in link_to_fixup_dir (bsc#1222005).
• CVE-2021-47191: Fix out-of-bound read in resp_readcap16() (bsc#1222866).
• CVE-2021-47201: iavf: free q_vectors before queues in iavf_disable_vf (bsc#1222792).
• CVE-2021-47267: usb: fix various gadget panics on 10gbps cabling (bsc#1224993).
• CVE-2021-47270: usb: fix various gadgets null ptr deref on 10gbps cabling (bsc#1224997).
• CVE-2021-47275: bcache: avoid oversized read request in cache missing code path (bsc#1224965).
• CVE-2021-47293: net/sched: act_skbmod: Skip non-Ethernet packets (bsc#1224978).
• CVE-2021-47294: netrom: Decrease sock refcount when sock timers expire (bsc#1224977).
• CVE-2021-47297: net: fix uninit-value in caif_seqpkt_sendmsg (bsc#1224976).
• CVE-2021-47309: net: validate lwtstate->data before returning from skb_tunnel_info() (bsc#1224967).
• CVE-2021-47328: blacklist.conf: bsc#1225047 CVE-2021-47328: breaks kABI Also, does not apply.
• CVE-2021-47354: drm/sched: Avoid data corruptions (bsc#1225140)
• CVE-2021-47372: net: macb: fix use after free on rmmod (bsc#1225184).
• CVE-2021-47379: blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd (bsc#1225203).
• CVE-2021-47407: KVM: x86: Handle SRCU initialization failure during page track init (bsc#1225306).
• CVE-2021-47418: net_sched: fix NULL deref in fifo_set_limit() (bsc#1225337).
• CVE-2021-47434: xhci: Fix commad ring abort, write all 64 bits to CRCR register (bsc#1225232).
• CVE-2021-47438: net/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove() (bsc#1225229)
• CVE-2021-47445: drm/msm: Fix null pointer dereference on pointer edp (bsc#1225261)
• CVE-2021-47498: dm rq: do not queue request to blk-mq during DM suspend (bsc#1225357).
• CVE-2021-47518: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done (bsc#1225372).
• CVE-2021-47520: can: pch_can: pch_can_rx_normal: fix use after free (bsc#1225431).
• CVE-2021-47544: tcp: fix page frag corruption on page fault (bsc#1225463).
• CVE-2021-47547: net: tulip: de4x5: fix the problem that the array 'lp->phy' may be out of bound (bsc#1225505).
• CVE-2021-47566: Fix clearing user buffer by properly using clear_user() (bsc#1225514).
• CVE-2021-47571: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() (bsc#1225518).
• CVE-2021-47587: net: systemport: Add global locking for descriptor lifecycle (bsc#1226567).
• CVE-2021-47602: mac80211: track only QoS data frames for admission control (bsc#1226554).
• CVE-2021-47609: firmware: arm_scpi: Fix string overflow in SCPI genpd driver (bsc#1226562)
• CVE-2022-48732: drm/nouveau: fix off by one in BIOS boundary checking (bsc#1226716)
• CVE-2022-48733: btrfs: fix use-after-free after failure to create a snapshot (bsc#1226718).
• CVE-2022-48740: selinux: fix double free of cond_list on error paths (bsc#1226699).
• CVE-2022-48743: net: amd-xgbe: Fix skb data length underflow (bsc#1226705).
• CVE-2022-48756: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable (bsc#1226698)
• CVE-2022-48759: rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev (bsc#1226711).
• CVE-2022-48761: usb: xhci-plat: fix crash when suspend if remote wake enable (bsc#1226701).
• CVE-2022-48772: media: lgdt3306a: Add a check against null-pointer-def (bsc#1226976).
• CVE-2023-24023: Bluetooth: Add more enc key size check (bsc#1218148).
• CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve local privilege escalation (bsc#1215420).
• CVE-2023-52507: Fixed possible shift-out-of-bounds in nfc/nci…