CVE-2022-50535

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix potential null-deref in dm_resume [Why] Fixing smatch error: dm_resume() error: we previously assumed 'aconnector->dc_link' could be null [How] Check if dc_link null at the beginning of the loop, so further checks can be dropped.

• smb: client: reject userspace cifs.spnego descriptions
• mlxsw: spectrum_acl_tcam: Fix possible use-after-free during rehash {CVE-2024-35854}
• cifs: Fix memory leak when build ntlmssp negotiate blob failed {CVE-2022-50372}
• scsi: lpfc: Check kzalloc() in lpfc_sli4_cgn_params_read() {CVE-2023-53038}
• drm/amd/display: Do not set DRR on pipe Commit {CVE-2023-53042}
• tcp: fix skb_copy_ubufs() vs BIG TCP {CVE-2023-53669}
• clk: Fix clk_core_get NULL dereference {CVE-2024-27038}
• drm/amd/display: Check null pointers before using dc->clk_mgr {CVE-2024-49907}
• bpf: reject unhashed sockets in bpf_sk_assign {CVE-2023-53585}
• driver core: fix resource leak in device_add() {CVE-2023-53594}
• wifi: ath9k: hif_usb: fix memory leak of remain_skbs {CVE-2023-53641}
• wifi: ath9k: verify the expected usb_endpoints are present {CVE-2022-50297}
• drm/amd/display: Fix potential null-deref in dm_resume {CVE-2022-50535}
• ext4: don't allow journal inode to have encrypt flag {CVE-2022-50277}
• tls: get psock ref after taking rxlock to avoid leak {CVE-2024-35908}
• cpumap: Zero-initialise xdp_rxq_info struct before running XDP program {CVE-2024-27431}
• bpf: Guard stack limits against 32bit overflow {CVE-2023-52676}
• can: isotp: isotp_sendmsg(): add result check for wait_event_interruptible() {CVE-2021-47457}
• serial: core: fix transmit-buffer reset and memleak {CVE-2021-47527}
• cpufreq: exit() callback is optional {CVE-2024-38615}
• ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find() {CVE-2024-39276}
• tcp: defer shutdown(SEND_SHUTDOWN) for TCP_SYN_RECV sockets {CVE-2024-36905}
• wifi: nl80211: reject iftype change with mesh ID change {CVE-2024-27410}
• tcp: do not accept ACK of bytes we never sent {CVE-2023-52881}
• crypto: pcrypt - Fix hungtask for PADATA_RESET {CVE-2023-52813}
• net/mlx5: Properly link new fs rules into the tree {CVE-2024-35960}
• usb: ulpi: fix memory leak on ulpi_register() error paths
• usb: ulpi: fix double free in ulpi_register_interface() error path {CVE-2026-31759}
• wifi: ath11k: fix htt pktlog locking {CVE-2023-52800}
• net_sched: cls_flow: validate TCA_FLOW_RSHIFT attribute {CVE-2025-21653}
• calipso: fix memory leak in netlbl_calipso_add_pass() {CVE-2023-52698}
• wifi: iwlwifi: mvm: avoid NULL pointer dereference {CVE-2024-49929}
• ext4: update orig_path in ext4_find_extent() {CVE-2024-49881}
• drm/vmwgfx: Fix a deadlock in dma buf fence polling {CVE-2024-43863}
• RDMA/restrack: Fix potential invalid address access {CVE-2024-42080}
• net: can: j1939: Initialize unused data in j1939_send_one() {CVE-2024-42076}
• nfsd: clear acl_access/acl_default after releasing them {CVE-2025-21796}
• rtc: pl031: fix rtc features null pointer dereference {CVE-2022-49273}
• net: veth: clear GRO when clearing XDP even when down {CVE-2024-26803}
• coresight: cti: Fix hang in cti_disable_hw() {CVE-2022-50491}
• scsi: qla2xxx: Fix deletion race condition {CVE-2023-53615}
• iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() {CVE-2023-53476}
• scsi: qla2xxx: Fix potential NULL pointer dereference {CVE-2023-53451}
• usb: ucsi_acpi: Increase the command completion timeout {CVE-2023-53168}
• drivers: base: dd: fix memory leak with using debugfs_lookup() {CVE-2023-53390}
• USB: fix memory leak with using debugfs_lookup() {CVE-2023-53359}
• PM: domains: fix memory leak with using debugfs_lookup() {CVE-2023-53202}
• drm/client: Fix memory leak in drm_client_modeset_probe {CVE-2023-53288}
• drivers: base: component: fix memory leak with using debugfs_lookup() {CVE-2023-53409}
• USB: uhci: fix memory leak with using debugfs_lookup() {CVE-2023-53197}
• media: uvcvideo: Handle cameras with invalid descriptors {CVE-2023-53437}
• arm64: csum: Fix OoB access in IP checksum code for negative lengths {CVE-2023-53726}
• bnxt: Do not read past the end of test names {CVE-2023-53010}
• dax: make sure inodes are flushed before destroy cache {CVE-2022-49220}
• cifs: Fix oops due to uncleared server->smbd_conn…

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

drm/amd/display: Fix potential null-deref in dm_resume

[Why] Fixing smatch error: dm_resume() error: we previously assumed 'aconnector->dc_link' could be null

[How] Check if dc_link null at the beginning of the loop, so further checks can be dropped.

The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() (bsc#1249857).
• CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251164).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2023-53365: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (bsc#1249988).
• CVE-2023-53500: xfrm: fix slab-use-after-free in decode_session6 (bsc#1250816).
• CVE-2023-53559: ip_vti: fix potential slab-use-after-free in decode_session6 (bsc#1251052).
• CVE-2023-53574: wifi: rtw88: delete timer and free skb queue when unloading (bsc#1251222).
• CVE-2023-53619: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free (bsc#1251743).
• CVE-2023-53673: Bluetooth: hci_event: call disconnect callback before deleting conn (bsc#1251763).
• CVE-2023-53705: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (bsc#1252554).
• CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249479).
• CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
• CVE-2025-39967: fbcon: fix integer overflow in fbcon_do_set_font (bsc#1252033).
• CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
• CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
• CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
• CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
• CVE-2025-40044: fs: udf: fix OOB read in lengthAllocDescs handling (bsc#1252785).
• CVE-2025-40088: hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() (bsc#1252904).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).

The following non security issues were fixed:

• fbcon: Fix OOB access in font allocation (bsc#1252033)
• mm: avoid unnecessary page fault retires on shared memory types (bsc#1251823).
• net: hv_netvsc: fix loss of early receive events from host during channel open (bsc#1252265).

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() (bsc#1249857).
• CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251164).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2023-53365: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (bsc#1249988).
• CVE-2023-53500: xfrm: fix slab-use-after-free in decode_session6 (bsc#1250816).
• CVE-2023-53559: ip_vti: fix potential slab-use-after-free in decode_session6 (bsc#1251052).
• CVE-2023-53574: wifi: rtw88: delete timer and free skb queue when unloading (bsc#1251222).
• CVE-2023-53619: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free (bsc#1251743).
• CVE-2023-53673: Bluetooth: hci_event: call disconnect callback before deleting conn (bsc#1251763).
• CVE-2023-53705: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (bsc#1252554).
• CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249479).
• CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
• CVE-2025-39967: fbcon: fix integer overflow in fbcon_do_set_font (bsc#1252033).
• CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
• CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
• CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
• CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
• CVE-2025-40044: fs: udf: fix OOB read in lengthAllocDescs handling (bsc#1252785).
• CVE-2025-40088: hfsplus: fix slab-out-of-bounds read in hfsplus_strcasecmp() (bsc#1252904).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).

The following non security issues were fixed:

• fbcon: Fix OOB access in font allocation (bsc#1252033)
• mm: avoid unnecessary page fault retires on shared memory types (bsc#1251823).
• net: hv_netvsc: fix loss of early receive events from host during channel open (bsc#1252265).

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() (bsc#1249857).
• CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251164).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2023-53365: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (bsc#1249988).
• CVE-2023-53500: xfrm: fix slab-use-after-free in decode_session6 (bsc#1250816).
• CVE-2023-53559: ip_vti: fix potential slab-use-after-free in decode_session6 (bsc#1251052).
• CVE-2023-53574: wifi: rtw88: delete timer and free skb queue when unloading (bsc#1251222).
• CVE-2023-53619: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free (bsc#1251743).
• CVE-2023-53673: Bluetooth: hci_event: call disconnect callback before deleting conn (bsc#1251763).
• CVE-2023-53705: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (bsc#1252554).
• CVE-2025-37885: KVM: x86: Reset IRTE to host control if new route isn't postable (bsc#1242960).
• CVE-2025-38084: hugetlb: unshare some PMDs when splitting VMAs (bsc#1245498).
• CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245499).
• CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1247317).
• CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249479).
• CVE-2025-39797: xfrm: Duplicate SPI Handling (bsc#1249608).
• CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
• CVE-2025-39967: fbcon: fix integer overflow in fbcon_do_set_font (bsc#1252033).
• CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
• CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
• CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
• CVE-2025-39981: Bluetooth: MGMT: Fix possible UAFs (bsc#1252060).
• CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
• CVE-2025-40044: fs: udf: fix OOB read in lengthAllocDescs handling (bsc#1252785).

The following non security issues were fixed:

• NFS: remove revoked delegation from server's delegation list (bsc#1246211).
• NFSv4: Allow FREE_STATEID to clean up delegations (bsc#1246211).
• fbcon: Fix OOB access in font allocation (bsc#1252033)
• kabi fix for NFSv4: Allow FREE_STATEID to clean up delegations (bsc#1246211).
• mm: avoid unnecessary page fault retires on shared memory types (bsc#1251823).
• net: hv_netvsc: fix loss of early receive events from host during channel open (bsc#1252265).
• net: mana: Switch to page pool for jumbo frames (bsc#1248754).
• net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency (bsc#1248754).
• netfilter: nft_objref: validate objref and objrefmap expressions (bsc#1250237). No CVE available yet, please see the bugzilla ticket referenced.

The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50334: hugetlbfs: fix null-ptr-deref in hugetlbfs_parse_param() (bsc#1249857).
• CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251164).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2023-53365: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (bsc#1249988).
• CVE-2023-53500: xfrm: fix slab-use-after-free in decode_session6 (bsc#1250816).
• CVE-2023-53559: ip_vti: fix potential slab-use-after-free in decode_session6 (bsc#1251052).
• CVE-2023-53574: wifi: rtw88: delete timer and free skb queue when unloading (bsc#1251222).
• CVE-2023-53619: netfilter: conntrack: Avoid nf_ct_helper_hash uses after free (bsc#1251743).
• CVE-2023-53673: Bluetooth: hci_event: call disconnect callback before deleting conn (bsc#1251763).
• CVE-2023-53705: ipv6: Fix out-of-bounds access in ipv6_find_tlv() (bsc#1252554).
• CVE-2025-37885: KVM: x86: Reset IRTE to host control if new route isn't postable (bsc#1242960).
• CVE-2025-38084: hugetlb: unshare some PMDs when splitting VMAs (bsc#1245498).
• CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245499).
• CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1247317).
• CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249479).
• CVE-2025-39797: xfrm: Duplicate SPI Handling (bsc#1249608).
• CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
• CVE-2025-39967: fbcon: fix integer overflow in fbcon_do_set_font (bsc#1252033).
• CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
• CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
• CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
• CVE-2025-39981: Bluetooth: MGMT: Fix possible UAFs (bsc#1252060).
• CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
• CVE-2025-40044: fs: udf: fix OOB read in lengthAllocDescs handling (bsc#1252785).

The following non security issues were fixed:

• NFS: remove revoked delegation from server's delegation list (bsc#1246211).
• NFSv4: Allow FREE_STATEID to clean up delegations (bsc#1246211).
• fbcon: Fix OOB access in font allocation (bsc#1252033)
• kabi fix for NFSv4: Allow FREE_STATEID to clean up delegations (bsc#1246211).
• kernel-subpackage-spec: Do not doubly-sign modules (bsc#1251930).
• mm: avoid unnecessary page fault retires on shared memory types (bsc#1251823).
• net: hv_netvsc: fix loss of early receive events from host during channel open (bsc#1252265).
• net: mana: Switch to page pool for jumbo frames (bsc#1248754).
• net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency (bsc#1248754).
• netfilter: nft_objref: validate objref and objrefmap expressions (bsc#1250237).
• rpm/check-for-config-changes: ignore CONFIG_SCHED_PROXY_EXEC, too (bsc#1250946)