CVE-2022-50536

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data In tcp_bpf_send_verdict() redirection, the eval variable is assigned to __SK_REDIRECT after the apply_bytes data is sent, if msg has more_data, sock_put() will be called multiple times. We should reset the eval variable to __SK_NONE every time more_data starts. This causes: IPv4: Attempt to release TCP socket in state 1 00000000b4c925d7 ------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 4482 at lib/refcount.c:25 refcount_warn_saturate+0x7d/0x110 Modules linked in: CPU: 5 PID: 4482 Comm: sockhash_bypass Kdump: loaded Not tainted 6.0.0 #1 Hardware name: Red Hat KVM, BIOS 1.11.0-2.el7 04/01/2014 Call Trace: <TASK> __tcp_transmit_skb+0xa1b/0xb90 ? __alloc_skb+0x8c/0x1a0 ? __kmalloc_node_track_caller+0x184/0x320 tcp_write_xmit+0x22a/0x1110 __tcp_push_pending_frames+0x32/0xf0 do_tcp_sendpages+0x62d/0x640 tcp_bpf_push+0xae/0x2c0 tcp_bpf_sendmsg_redir+0x260/0x410 ? preempt_count_add+0x70/0xa0 tcp_bpf_send_verdict+0x386/0x4b0 tcp_bpf_sendmsg+0x21b/0x3b0 sock_sendmsg+0x58/0x70 __sys_sendto+0xfa/0x170 ? xfd_validate_state+0x1d/0x80 ? switch_fpu_return+0x59/0xe0 __x64_sys_sendto+0x24/0x30 do_syscall_64+0x37/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd

• net: skbuff: propagate shared-frag marker through pskb_copy()
• HID: ignore non-functional sensor in HP 5MP Camera {CVE-2025-21992}
• net: fix crash when config small gso_max_size/gso_ipv4_max_size {CVE-2024-50258}
• ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_init_flow() {CVE-2024-53042}
• ALSA: ctxfi: Limit PTP to a single page {CVE-2026-31602}
• serial: imx: Add missing .thaw_noirq hook {CVE-2022-49841}
• module: ensure that kobject_put() is safe for module type kobjects {CVE-2025-37995}
• udf: Fix uninitialized array access for some pathnames {CVE-2023-53165}
• ACPICA: Avoid undefined behavior: applying zero offset to null pointer {CVE-2023-53182}
• net: bridge: fix nd_tbl NULL dereference when IPv6 is disabled {CVE-2026-23381}
• platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data {CVE-2026-23370}
• HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them {CVE-2026-23382}
• icmp: fix NULL pointer dereference in icmp_tag_validation() {CVE-2026-23398}
• net/sched: ets: fix divide by zero in the offload path {CVE-2026-23379}
• ice: Fix memory leak in ice_set_ringparam() {CVE-2026-23389}
• wifi: radiotap: reject radiotap with unknown bits {CVE-2026-23367}
• HID: asus: avoid memory leak in asus_report_fixup() {CVE-2026-31524}
• xprtrdma: treat all calls not a bcall when bc_serv is NULL {CVE-2022-49321}
• mm/mempolicy: fix uninit-value in mpol_rebind_policy() {CVE-2022-49567}
• x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails {CVE-2022-49549}
• af_unix: Fix a data-race in unix_dgram_peer_wake_me(). {CVE-2022-49344}
• bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data {CVE-2022-50536}
• net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() {CVE-2023-53578}
• wifi: nl80211: fix integer overflow in nl80211_parse_mbssid_elems() {CVE-2023-53570}
• mptcp: fix race on unaccepted mptcp sockets {CVE-2022-49669}
• ALSA: usb-audio: Use correct version for UAC3 header validation {CVE-2026-23318}
• wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211() {CVE-2026-23315}
• net: usb: cdc_ncm: add ndpoffset to NDP32 nframes bounds check {CVE-2026-23447}
• Squashfs: check metadata block offset is within range {CVE-2026-23388}
• apparmor: Fix double free of ns_name in aa_replace_profiles() {CVE-2026-23408}
• nfnetlink_osf: validate individual option lengths in fingerprints {CVE-2026-23397}
• i2c: piix4: Fix a memory leak in the EFCH MMIO support {CVE-2022-49653}

• drm/amd/pm: bound pp_dpm_set_pp_table() memcpy {CVE-2026-97427}
• Bluetooth: L2CAP: validate connectionless PSM length {CVE-2026-97408}
• ipv6: sr: restore network header before routing and forwarding {CVE-2026-98096}
• ipv6: fix fib6 walker UAF on seq stop {CVE-2026-97940}
• net: mpls: clear inner_protocol when the last label is popped {CVE-2026-97612}
• netfilter: nf_log: unregister loggers before per-net teardown {CVE-2026-97608}
• usb: xusbatm: don't rely on id table pointer arithmetic {CVE-2026-97539}
• ALSA: 6fire: Fix UAF at error handling during probe {CVE-2026-74505}
• drm/vmwgfx: validate DRAW_PRIMITIVES header size before division {CVE-2026-74444}
• ALSA: firewire: isight: bound the sample count to the packet payload {CVE-2026-64483}
• Bluetooth: btusb: fix use-after-free on registration failure {CVE-2026-64471}
• thunderbolt: Keep XDomain reference during the lifetime of a service {CVE-2026-97509}
• ACPICA: Fix use-after-free in acpi_ds_terminate_control_method() {CVE-2026-97455}
• ACPICA: Add validation for node in acpi_ns_build_normalized_path() {CVE-2026-97448}
• inet: frags: strip GSO state from fragments before reassembly {CVE-2026-80590}
• libnvdimm/labels: Prevent integer overflow in __nd_label_validate() {CVE-2026-89559}
• SUNRPC: always drain cache_cleaner before destroying a cache_detail {CVE-2026-89548}
• SUNRPC: harden gss_krb5_unwrap_v2 against short tokens {CVE-2026-89542}
• openvswitch: only skb_tx_error() a packet we are about to drop {CVE-2026-89487}
• nvme-tcp: fix host memory disclosure on R2T for a read command {CVE-2026-89481}
• sctp: fix NULL deref on untransmitted RECONF completion {CVE-2026-89477}
• net: openvswitch: fix flow mask use-after-free on flow deletion {CVE-2026-80994}
• ALSA: bcd2000: clear the URB pointers on disconnect {CVE-2026-80971}
• netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() {CVE-2026-74569}
• Bluetooth: mgmt: fix UAF in pair command cancellation {CVE-2026-74510}
• cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname {CVE-2023-53751}
• RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem {CVE-2025-38022}
• drivers: base: Free devm resources when unregistering a device {CVE-2023-53596}
• scsi: qla2xxx: Fix bsg_done() causing double free {CVE-2025-71238}
• netfilter: bridge: make ebt_snat ARP rewrite writable {CVE-2026-53266}
• xfrm: ah6: validate routing header segments_left {CVE-2026-80844}
• drm/amd/display: set new_stream to NULL after release {CVE-2026-68236}
• RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters {CVE-2026-100075}
• nvmet-rdma: handle inline data with a nonzero offset {CVE-2026-72129}
• ASoC: SOF: ipc3-control: Validate size in snd_sof_update_control {CVE-2026-72261}
• crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg {CVE-2025-39964}
• crypto: algif_aead - fix uninitialized ctx->init {CVE-2025-39964}
• netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() {CVE-2026-97417}
• tipc: fix integer overflow in tipc_recvmsg() and tipc_recvstream() {CVE-2026-68289}
• sctp: fix race between sctp_wait_for_connect and peeloff {CVE-2026-63971}
• bridge: stp: Fix a potential use-after-free when deleting a bridge {CVE-2026-72389}
• scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer {CVE-2026-74556}
• rhashtable: clear stale iter->p on table restart {CVE-2026-64563}
• mpls: reload header after pskb_may_pull() {CVE-2026-89555}
• net: tun: bound receive headroom {CVE-2026-81000}
• netfilter: flowtable: publish GC-visible tuple last {CVE-2026-74746}
• netfilter: nf_conntrack_sip: fix OOB read in sip_skip_whitespace() {CVE-2026-98077}
• net: atlantic: eliminate double free in error handling logic {CVE-2023-52664}
• firewire: net: fix use after free in fwnet_finish_incoming_packet() {CVE-2023-53432}
• firewire: net: remove unused variable 'guid' {CVE-2023-53432}
• gfs2: Fix slab-use-after-free in gfs2_qd_dealloc {CVE-2023-52760}
• gfs2: fix kernel…

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2021-4460: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning (bsc#1250764).
• CVE-2022-48631: ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0 (bsc#1223475).
• CVE-2022-50236: iommu/mediatek: Fix crash on isr after kexec() (bsc#1249702).
• CVE-2022-50249: memory: of: Fix refcount leak bug in of_get_ddr_timings() (bsc#1249747).
• CVE-2022-50280: pnode: terminate at peers of source (bsc#1249806).
• CVE-2022-50293: btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range (bsc#1249752).
• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50350: scsi: target: iscsi: Fix a race condition between login_work and the login thread (bsc#1250261).
• CVE-2022-50356: net: sched: sfb: fix null pointer access issue when sfb_init() fails (bsc#1250040).
• CVE-2022-50367: fs: fix UAF/GPF bug in nilfs_mdt_destroy (bsc#1250277).
• CVE-2022-50394: i2c: ismt: Fix an out-of-bounds bug in ismt_access() (bsc#1250107).
• CVE-2022-50395: integrity: Fix memory leakage in keyring allocation error path (bsc#1250211).
• CVE-2022-50423: ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (bsc#1250784).
• CVE-2022-50443: drm/rockchip: lvds: fix PM usage counter unbalance in poweron (bsc#1250768).
• CVE-2022-50459: scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() (bsc#1250850).
• CVE-2022-50481: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() (bsc#1251051).
• CVE-2022-50485: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode (bsc#1251197).
• CVE-2022-50505: iommu/amd: Fix pci device refcount leak in ppr_notifier() (bsc#1251086).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2022-50542: media: si470x: Fix use-after-free in si470x_int_in_callback() (bsc#1251330).
• CVE-2022-50571: btrfs: call __btrfs_remove_free_space_cache_locked on cache load failure (bsc#1252487).
• CVE-2023-53183: btrfs: exit gracefully if reloc roots don't match (bsc#1249863).
• CVE-2023-53185: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (bsc#1249820).
• CVE-2023-53188: net: openvswitch: fix race on port output (bsc#1249854).
• CVE-2023-53191: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains (bsc#1249721).
• CVE-2023-53204: af_unix: Fix data-races around user->unix_inflight (bsc#1249682).
• CVE-2023-53271: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (bsc#1249916).
• CVE-2023-53282: scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write (bsc#1250311).
• CVE-2023-53289: media: bdisp: Add missing check for create_workqueue (bsc#1249941).
• CVE-2023-53292: blk-mq: protect q->elevator by ->sysfs_lock in blk_mq_elv_switch_none (bsc#1250163).
• CVE-2023-53338: lwt: Fix return values of BPF xmit ops (bsc#1250074).
• CVE-2023-53339: btrfs: fix BUG_ON condition in btrfs_cancel_balance (bsc#1250329).
• CVE-2023-53373: crypto: seqiv - Handle EBUSY correctly (bsc#1250137).
• CVE-2023-53433: net: add vlan_get_protocol_and_depth() helper (bsc#1250164).
• CVE-2023-53476: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() (bsc#1250839).
• CVE-2023-53477: ipv6: Add lwtunnel encap size of all siblings in nexthop calculation (bsc#1250840).
• CVE-2023-53484: lib: cpu_rmap: Avoid use after free on rmap->obj array entries (bsc#1250895).
• CVE-2023-53517: tipc: do not update mtu if msg_max is too small in mtu negotiation (bsc#1250919).
• CVE-2023-53519: media: v4l2-mem2mem: add lock to protect parameter num_rdy (bsc#1250964).
• CVE-2023-53540: wifi: cfg80211: reject auth/assoc to AP with our address (bsc#1251053).
• CVE-2023-53548: net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb (bsc#1251066).
• CVE-2023-53556: iavf: Fix use-after-free in free_netdev (bsc#1251059). -…