Threats Tagged 'cve-2026-31546'

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-10263: arm64: cputype: Add C1-Premium definitions (bsc#1266290). - CVE-2025-39894: netfilter: br_netfilter: do not check confirmed bit in br_nf_local_in() after confirm (bsc#1262430). - CVE-2025-40341: futex: Don't leak robust_list pointer on exec race (bsc#1255029). - CVE-2026-23248: perf: Make perf_pmu_unregister() useable (bsc#1259800). - CVE-2026-23394: Revert: "af_unix: Remove lock dance in unix_peek_fds()." (bsc#1260565). - CVE-2026-23451: bonding: prevent potential infinite loop in bond_header_parse() (bsc#1261604). - CVE-2026-31414: netfilter: nf_conntrack_expect: use expect->helper (bsc#1262085). - CVE-2026-31429: net: skb: fix cross-cache free of KFENCE-allocated skb head (bsc#1262392). - CVE-2026-31438: netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators (bsc#1267824). - CVE-2026-31450: ext4: publish jinode after initialization (bsc#1262618). - CVE-2026-31452: ext4: convert inline data to extents when truncate exceeds inline size (bsc#1262620). - CVE-2026-31466: mm/huge_memory: fix folio isn't locked in softleaf_to_folio() (bsc#1267825). - CVE-2026-31469: virtio_net: Fix UAF on dst_ops when IFF_XMIT_DST_RELEASE is cleared and napi_tx is false (bsc#1267816). - CVE-2026-31479: drm/xe: always keep track of remap prev/next (bsc#1262765). - CVE-2026-31492: RDMA/irdma: Initialize free_qp completion before using it (bsc#1262748). - CVE-2026-31495: netfilter: ctnetlink: use netlink policy range checks (bsc#1262798). - CVE-2026-31499: Bluetooth: L2CAP: Fix deadlock in l2cap_conn_del() (bsc#1262674). - CVE-2026-31502: team: fix header_ops type confusion with non-Ethernet ports (bsc#1263072). - CVE-2026-31555: futex: Clear stale exiting pointer in futex_lock_pi() retry path (bsc#1263178). - CVE-2026-31560: spi: spi-dw-dma: fix print error log when wait finish transaction (bsc#1263057). - CVE-2026-31596: ocfs2: handle invalid dinode in ocfs2_group_extend (bsc#1263319). - CVE-2026-31646: net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() (bsc#1263796). - CVE-2026-31647: idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling (bsc#1263581). - CVE-2026-31663: xfrm: hold device only for the asynchronous decryption (bsc#1263133). - CVE-2026-31664: xfrm: clear trailing padding in build_polexpire() (bsc#1263578). - CVE-2026-31665: netfilter: nft_ct: fix use-after-free in timeout object destroy (bsc#1263137). - CVE-2026-31670: net: rfkill: prevent unlimited numbers of rfkill events from being created (bsc#1263573). - CVE-2026-31673: af_unix: read UNIX_DIAG_VFS data under unix_state_lock (bsc#1263143). - CVE-2026-31674: netfilter: ip6t_rt: reject oversized addrnr in rt_mt6_check() (bsc#1263568). - CVE-2026-31680: net: ipv6: flowlabel: defer exclusive option free until RCU teardown (bsc#1263563). - CVE-2026-31693: cifs: some missing initializations on replay (bsc#1267744). - CVE-2026-31743: nvmem: zynqmp_nvmem: Fix buffer size in DMA and memcpy (bsc#1264067). - CVE-2026-31752: bridge: br_nd_send: validate ND option lengths (bsc#1264045). - CVE-2026-31771: Bluetooth: hci_event: move wake reason storage into validated event handlers (bsc#1264145). - CVE-2026-43010: bpf: Reject sleepable kprobe_multi programs at attach time (bsc#1264015). - CVE-2026-43014,CVE-2026-43015: net: macb: fix clk handling on PCI glue driver removal (bsc#1264010 bsc#1264012). - CVE-2026-43016: bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready() (bsc#1264007). - CVE-2026-43022: Bluetooth: hci_sync: hci_cmd_sync_queue_once() return -EEXIST if exists (bsc#1264001). - CVE-2026-43024: netfilter: nf_tables: reject immediate NF_QUEUE verdict (bsc#1263930). - CVE-2026-43028: netfilter: x_tables: ensure names are nul-terminated (bsc#1263934). - CVE-2026-43034: bnxt_en: set backing store type from query type (bsc#1263998). - CVE-2026-43035: net: sched: cls_api: fix tc_chain_fill_node to initialize tcm_info to zero to prevent an info-leak (bsc#1263996). - CVE-2026-43036: net: use skb_header_pointer() for TCPv4 GSO frag_off check (bsc#1263993). - CVE-2026-43053: xfs: factor out xfs_attr3_node_entry_remove (bsc#1264084). - CVE-2026-43057: net: correctly handle tunneled traffic on IPV6_CSUM GSO fallback (bsc#1264056). - CVE-2026-43074: eventpoll: defer struct eventpoll free to RCU grace period (bsc#1264263). - CVE-2026-43080: l2tp: Drop large packets with UDP encap (bsc#1264236). - CVE-2026-43081: net: ipa: fix GENERIC_CMD register field masks for IPA v5.0+ (bsc#1264241). - CVE-2026-43083: net: ioam6: fix OOB and missing lock (bsc#1264266). - CVE-2026-43085: netfilter: nfnetlink_log: initialize nfgenmsg in NLMSG_DONE terminator (bsc#1264230). - CVE-2026-43086: ipvs: fix NULL deref in ip_vs_add_service error path (bsc#1264286). - CVE-2026-43089: xfrm_user: fix info leak in build_mapping() (bsc#1264261). - CVE-2026-43090: xfrm: fix refc

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2026-23254: net: gro: fix outer network offset (bsc#1259884). - CVE-2026-23303: smb: client: Don't log plaintext credentials in cifs_set_cifscreds (bsc#1260502). - CVE-2026-23327: cxl/mbox: validate payload size before accessing contents in cxl_payload_from_user_allowed() (bsc#1260548). - CVE-2026-23438: net: mvpp2: guard flow control update with global_tx_fc in buffer switching (bsc#1261619). - CVE-2026-31396: net: macb: fix use-after-free access to PTP clock (bsc#1261791). - CVE-2026-31401: HID: bpf: prevent buffer overflow in hid_hw_request (bsc#1261603). - CVE-2026-31446: ext4: fix use-after-free in update_super_work when racing with umount (bsc#1262619). - CVE-2026-31448: ext4: avoid infinite loops caused by residual data (bsc#1262622). - CVE-2026-31454: xfs: save ailp before dropping the AIL lock in push callbacks (bsc#1262624). - CVE-2026-31455: xfs: stop reclaim before pushing AIL during unmount (bsc#1262615). - CVE-2026-31518: esp: fix skb leak with espintcp and async crypto (bsc#1262606). - CVE-2026-31546: net: bonding: fix NULL deref in bond_debug_rlb_hash_show (bsc#1263006). - CVE-2026-31556: xfs: scrub: unlock dquot before early return in quota scrub (bsc#1263062). - CVE-2026-31562: drm/mediatek: dsi: Store driver data before invoking mipi_dsi_host_register (bsc#1263058). - CVE-2026-31584: media: mediatek: vcodec: fix use-after-free in encoder release path (bsc#1263180). - CVE-2026-31645: net: lan966x: fix page pool leak in error paths (bsc#1263794). - CVE-2026-31648: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() (bsc#1263579). - CVE-2026-31655: pmdomain: imx8mp-blk-ctrl: Keep the NOC_HDCP clock enabled (bsc#1263724). - CVE-2026-31671: xfrm_user: fix info leak in build_report() (bsc#1263115). - CVE-2026-31683: batman-adv: avoid OGM aggregation when skb tailroom is insufficient (bsc#1263594). - CVE-2026-31703: writeback: Fix use after free in inode_switch_wbs_work_fn() (bsc#1263883). - CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs() (bsc#1264040). - CVE-2026-43026: netfilter: ctnetlink: zero expect NAT fields when CTA_EXPECT_NAT absent (bsc#1263932). - CVE-2026-43030: bpf: Fix regsafe() for pointers to packet (bsc#1264000). - CVE-2026-43040: net: ipv6: ndisc: fix ndisc_ra_useropt to initialize nduseropt_padX fields to zero to prevent an info-leak (bsc#1264091). - CVE-2026-43063: xfs: don't irele after failing to iget in xfs_attri_recover_work (bsc#1264196). - CVE-2026-43065: ext4: always drain queued discard work in ext4_mb_release() (bsc#1264243). - CVE-2026-43066: ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths (bsc#1264245). - CVE-2026-43068: ext4: avoid allocate block from corrupted group in ext4_mb_find_by_goal() (bsc#1264255). - CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock (bsc#1264484). - CVE-2026-43150: perf/arm-cmn: Reject unsupported hardware configurations (bsc#1264415). - CVE-2026-43184: rnbd-srv: Zero the rsp buffer before using it (bsc#1264622). - CVE-2026-43197: netconsole: avoid OOB reads, msg is not nul-terminated (bsc#1264609). - CVE-2026-43332: thermal: core: Fix thermal zone device registration error path (bsc#1265114). - CVE-2026-43393: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() (bsc#1264723). - CVE-2026-43394: nfsd: Fix cred ref leak in nfsd_nl_listener_set_doit() (bsc#1265081). - CVE-2026-43411: tipc: fix divide-by-zero in tipc_sk_filter_connect() (bsc#1264672). - CVE-2026-43455: net: mctp: Ensure keys maintain only one ref to corresponding dev (bsc#1264765). - CVE-2026-45842: slip: reject VJ receive packets on instances with no rstate array (bsc#1266400). - CVE-2026-45846: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() (bsc#1266394). - CVE-2026-45852: RDMA/rxe: Fix double free in rxe_srq_from_init (bsc#1266711). - CVE-2026-45856: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (bsc#1266720). - CVE-2026-45886: bpf: Fix bpf_xdp_store_bytes proto for read-only arg (bsc#1266810). - CVE-2026-45898: RDMA/iwcm: Fix workqueue list corruption by removing work_list (bsc#1266888). - CVE-2026-45910: RDMA/rxe: Fix race condition in QP timer handlers (bsc#1266889). - CVE-2026-45932: bpf: Fix tcx/netkit detach permissions when prog fd isn't given (bsc#1266827). - CVE-2026-45942: ext4: fix e4b bitmap inconsistency reports (bsc#1266914). - CVE-2026-45970: bonding: alb: fix UAF in rlb_arp_recv during bond up/down (bsc#1267205). - CVE-2026-45984: gfs2: Fix use-after-free in iomap inline data write path (bsc#1267214). - CVE-2026-46021: thermal: core: Fix thermal zone governor cleanup issues (bsc#1267220). - CVE-2026-46043: RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (bsc#1266901). - CVE-2026-46083: spi: fix resource leaks on device setup failure (bsc#1266696). - C

In the Linux kernel, the following vulnerability has been resolved: net: bonding: fix NULL deref in bond_debug_rlb_hash_show rlb_clear_slave intentionally keeps RLB hash-table entries on the rx_hashtbl_used_head list with slave set to NULL when no replacement slave is available. However, bond_debug_rlb_hash_show visites client_info->slave without checking if it's NULL. Other used-list iterators in bond_alb.c already handle this NULL-slave state safely: - rlb_update_client returns early on !client_info->slave - rlb_req_update_slave_clients, rlb_clear_slave, and rlb_rebalance compare slave values before visiting - lb_req_update_subnet_clients continues if slave is NULL The following NULL deref crash can be trigger in bond_debug_rlb_hash_show: [ 1.289791] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 1.292058] RIP: 0010:bond_debug_rlb_hash_show (drivers/net/bonding/bond_debugfs.c:41) [ 1.293101] RSP: 0018:ffffc900004a7d00 EFLAGS: 00010286 [ 1.293333] RAX: 0000000000000000 RBX: ffff888102b48200 RCX: ffff888102b48204 [ 1.293631] RDX: ffff888102b48200 RSI: ffffffff839daad5 RDI: ffff888102815078 [ 1.293924] RBP: ffff888102815078 R08: ffff888102b4820e R09: 0000000000000000 [ 1.294267] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100f929c0 [ 1.294564] R13: ffff888100f92a00 R14: 0000000000000001 R15: ffffc900004a7ed8 [ 1.294864] FS: 0000000001395380(0000) GS:ffff888196e75000(0000) knlGS:0000000000000000 [ 1.295239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1.295480] CR2: 0000000000000000 CR3: 0000000102adc004 CR4: 0000000000772ef0 [ 1.295897] Call Trace: [ 1.296134] seq_read_iter (fs/seq_file.c:231) [ 1.296341] seq_read (fs/seq_file.c:164) [ 1.296493] full_proxy_read (fs/debugfs/file.c:378 (discriminator 1)) [ 1.296658] vfs_read (fs/read_write.c:572) [ 1.296981] ksys_read (fs/read_write.c:717) [ 1.297132] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) [ 1.297325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Add a NULL check and print "(none)" for entries with no assigned slave.

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths When processing mount options, efivarfs allocates efivarfs_fs_info (sfi) early in fs_context initialization. However, sfi is associated with the superblock and typically freed when the superblock is destroyed. If the fs_context is released (final put) before fill_super is called—such as on error paths or during reconfiguration—the sfi structure would leak, as ownership never transfers to the superblock. Implement the .free callback in efivarfs_context_ops to ensure any allocated sfi is properly freed if the fs_context is torn down before fill_super, preventing this memory leak.