In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data() In that function, we round down the start position and round up the ending position. But during the calculation of @len, we use "round_up(start + len, sectorsize)", which is the rounded up end position, not the rounded up length. Which results a much larger length, and later we are still using "start + len", which is completely incorrect. Fix it by declaring a local @aligned_start and @aligned_len and use them instead.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix a wrong length
    calculation in qgroup_free_reserved_data() In that function, we round down the start position and round up
    the ending position. But during the calculation of @len, we use "round_up(start + len, sectorsize)", which
    is the rounded up end position, not the rounded up length. Which results a much larger length, and later
    we are still using "start + len", which is completely incorrect. Fix it by declaring a local
    @aligned_start and @aligned_len and use them instead. (CVE-2026-90259)

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:4660-1 advisory.

    The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues:

    The following security issues were fixed:

    - CVE-2025-38704: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer (bsc#1254408).
    - CVE-2026-43502: net/rds: handle zerocopy send cleanup before the message is queued (bsc#1266008).
    - CVE-2026-46135: nvmet-tcp: add bounds checks in nvmet_tcp_build_pdu_iovec (bsc#1267373).
    - CVE-2026-53266: netfilter: bridge: make ebt_snat ARP rewrite writable (bsc#1269136).
    - CVE-2026-53400: i2c: core: fix adapter registration race (bsc#1271906).
    - CVE-2026-63795: 9p: avoid putting oldfid in p9_client_walk() error path (bsc#1271955).
    - CVE-2026-64279: i2c: core: fix adapter deregistration race (bsc#1273953).
    - CVE-2026-64319: nvmet-auth: validate reply message payload bounds against transfer length (bsc#1273339).
    - CVE-2026-64320: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (bsc#1273420).
    - CVE-2026-64422: net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (bsc#1273290).
    - CVE-2026-64556: perf/core: Detach event groups during remove_on_exec (bsc#1273251).
    - CVE-2026-64580: xfrm6: clear dst.dev on error to avoid double netdev_put in xfrm6_fill_dst()     (bsc#1274037).
    - CVE-2026-68162: sctp: avoid auth_enable sysctl UAF during netns teardown (bsc#1274920).
    - CVE-2026-68290: rds: tcp: unregister sysctl before tearing down listen socket (bsc#1275977).
    - CVE-2026-68376: sctp: fix auth_hmacs array size in struct sctp_cookie (bsc#1274836).
    - CVE-2026-68445: drm/vc4: Prevent shader BO mappings from becoming writable (bsc#1276277).
    - CVE-2026-68451: s390/zcrypt: Validate length for CCA ECC private key requests (bsc#1276287).
    - CVE-2026-68452: s390/zcrypt: Validate length for CCA AES cipher key requests (bsc#1276295).
    - CVE-2026-68454: KVM: s390: pci: Fix handling of AIF enable without AISB (bsc#1276388).
    - CVE-2026-72051: net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276801).
    - CVE-2026-72052: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276803).
    - CVE-2026-72053: net: ipip: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276814).
    - CVE-2026-72054: net: ip_vti: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276818).
    - CVE-2026-72055: net: ip6_vti: require CAP_NET_ADMIN in the device netns for changelink (bsc#1276821).
    - CVE-2026-72061: net: sit: require CAP_NET_ADMIN in the device netns for changelink (bsc#1277249).
    - CVE-2026-72066: cpu: hotplug: Bound hotplug states sysfs output (bsc#1277149).
    - CVE-2026-72098: dm-verity: fix buffer overflow in FEC calculation (bsc#1275543).
    - CVE-2026-72129: nvmet-rdma: handle inline data with a nonzero offset (bsc#1275545).
    - CVE-2026-72136: xfrm: xfrm_interface: require CAP_NET_ADMIN in the device netns for changelink     (bsc#1277574).
    - CVE-2026-72157: net: thunderbolt: Fix frags[] overflow by bounding frame_count (bsc#1277544).
    - CVE-2026-72164: ocfs2: avoid moving extents to occupied clusters (bsc#1277553).
    - CVE-2026-72301: ASoC: SOF: ipc3-control: Fix TOCTOU in bytes_put and bytes_get (bsc#1277742).
    - CVE-2026-72322: ipv6: mcast: Fix potential UAF in MLD delayed work (bsc#1275972).
    - CVE-2026-72323: ipv4: igmp: Fix potential UAF in igmp_gq_start_timer() (bsc#1275985).
    - CVE-2026-72348: netfilter: ip6tables: mark malformed IPv6 extension headers for hotdrop (bsc#1276007).
    - CVE-2026-72351: gue: validate REMCSUM private option length (bsc#1276009).
    - CVE-2026-72383: sctp: fix addr_wq_timer race in sctp_free_addr_wq() (bsc#1277857).
    - CVE-2026-72398: sctp: add INIT verification after cookie unpacking (bsc#1276381).
    - CVE-2026-72399: net: enetc: check the number of BDs needed for xdp_frame (bsc#1276553).
    - CVE-2026-72434: netfilter: ipset: make sure gc is properly stopped (bsc#1278054).
    - CVE-2026-72449: drm/amdkfd: fix list_del corruption in kfd_criu_resume_svm (bsc#1278108).
    - CVE-2026-74267: net/sched: sch_codel: Do not call qdisc_tree_reduce_backlog during peek before restoring     qlen       (bsc#1276519).
    - CVE-2026-74283: tipc: require net admin for TIPCv2 netlink mutators (bsc#1276475).
    - CVE-2026-74330: configfs: fix lockless traversals of ->s_children (bsc#1277129).
    - CVE-2026-74356: vhost: move smp_rmb() into vhost_get_avail_idx() (bsc#1278063).
    - CVE-2026-74363: bpf: fix UAF by restoring RCU-delayed inode freeing in bpffs (bsc#1278070).
    - CVE-2026-74388: ALSA: seq: oss: Fix UAF at handling events with embedded SysEx data (bsc#1278253).
    - CVE-2026-74398: ipv6: addrconf: bail out of dad_failure when state is no longer POSTDAD (bsc#1277410).
    - CVE-2026-74406: vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive() (bsc#1276395).
    - CVE-2026-74443: drm/vmwgfx: bound DMA command body size against suffix pointer (bsc#1278210).
    - CVE-2026-74444: drm/vmwgfx: validate DRAW_PRIMITIVES header size before division (bsc#1278211).
    - CVE-2026-74453: drm/vc4: Zero the tile state data array before each BIN job (bsc#1278178).
    - CVE-2026-74469: sctp: prevent peer transport count overflow (bsc#1277792).
    - CVE-2026-74473: vxlan: use pskb_network_may_pull() in route_shortcircuit() (bsc#1276340).
    - CVE-2026-74476: veth: convert frag_list skbs before running XDP (bsc#1276341).
    - CVE-2026-74479: net: pktgen: fix proc entry use-after-free (bsc#1276354).
    - CVE-2026-74480: net: bridge: stop fast-leave after deleting a port group (bsc#1276353).
    - CVE-2026-74492: netfilter: ipset: do not update comments from kernel-side hash adds (bsc#1276337).
    - CVE-2026-74493: net/smc: fix socket use-after-free during link group termination (bsc#1276338).
    - CVE-2026-74540: Bluetooth: L2CAP: fix UAF in l2cap_le_connect_rsp (bsc#1275681).
    - CVE-2026-74541: Bluetooth: ISO: clear iso_data always when detaching conn from hcon (bsc#1275694).
    - CVE-2026-74586: sctp: clear new_transport when removing a peer (bsc#1277820).
    - CVE-2026-74588: sctp: keep chunk->transport in step with the list it is queued on (bsc#1277766).
    - CVE-2026-74589: bpf, sockmap: Fix sk_redir use-after-free in send verdict (bsc#1277904).
    - CVE-2026-74597: ip6_tunnel: clear skb2->cb in ip6ip6_err() (bsc#1277493).
    - CVE-2026-74608: smb: client: Fix use-after-free in cifs_try_adding_channels() (bsc#1277796).
    - CVE-2026-74609: tipc: read le->link under the node lock in tipc_node_link_down() (bsc#1277906).
    - CVE-2026-74615: vxlan: do not arm the ageing timer on a device that is down (bsc#1277901).
    - CVE-2026-74616: xdp: reject clones that overrun skb_shared_info tailroom (bsc#1277813).
    - CVE-2026-74630: ipv6: prevent in6_dev_get() from resurrecting inet6_dev (bsc#1278191).
    - CVE-2026-74631: net: smc: fix splice entry lifetime imbalance in smc_rx_splice (bsc#1278195).
    - CVE-2026-74688: sctp: clear control chunk transport if it is being removed (bsc#1277489).
    - CVE-2026-74700: net/sched: cls_api: Always acquire rtnl_lock when destroying locked classifiers     (bsc#1277626).
    - CVE-2026-74719: net/smc: fix qentry overwrite for CONFIRM_LINK and ADD_LINK_CONT in     smc_llc_event_handler()       (bsc#1276572).
    - CVE-2026-74737: net: ethernet: ti: am65-cpsw-nuss: Fix port_id extraction from SRC TAG (bsc#1277898).
    - CVE-2026-74743: macvlan: inherit needed_headroom and needed_tailroom from lowerdev (bsc#1277908).
    - CVE-2026-74744: ipvlan: inherit needed_headroom and needed_tailroom from phy_dev (bsc#1278094).
    - CVE-2026-74752: sctp: validate cookie AUTH state before use (bsc#1278315).
    - CVE-2026-80540: drm/amdgpu: Fix UVD decode image min size calculation (bsc#1277590).
    - CVE-2026-80580: fbdev: bound mode sysfs output to the sysfs buffer (bsc#1278294).
    - CVE-2026-80663: tools/power/x86/intel-speed-select: Harden daemon pidfile open (bsc#1278335).
    - CVE-2026-80714: ipvs: do not propagate one-packet flag to synced conns (bsc#1277561).
    - CVE-2026-80716: ALSA: pcm: wake linked drain waiters on unlink (bsc#1277837).
    - CVE-2026-80725: net: gro: properly validate BIG TCP aggregation criteria (bsc#1277452).
    - CVE-2026-80737: serial: amba-pl011: synchronize DMA teardown (bsc#1279487).
    - CVE-2026-80785: fbdev: serialize mode sysfs access with lock_fb_info() (bsc#1279619).
    - CVE-2026-80789: nvmet-tcp: bound SGL data length before allocating command buffers (bsc#1279621).
    - CVE-2026-80799: nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers (bsc#1279811).
    - CVE-2026-80840: ipv6: seg6: clear IPv4 control block on IPIP decapsulation (bsc#1279875).
    - CVE-2026-80841: net/packet: defer vmalloc TX_RING free until skbs finish (bsc#1279835).
    - CVE-2026-80844: xfrm: ah6: validate routing header segments_left (bsc#1279786).
    - CVE-2026-80852: tls: device: fix out-of-bounds write in tls_append_frag() (bsc#1279532).
    - CVE-2026-80909: drm/amdgpu: Reject UVD message with invalid number of h265 refs (bsc#1279422).
    - CVE-2026-80976: seg6: reset IP6CB after IPv6 decapsulation (bsc#1280298).
    - CVE-2026-81000: net: tun: bound receive headroom (bsc#1280263).
    - CVE-2026-89479: sctp: stop processing a packet once its association is deleted (bsc#1280786).
    - CVE-2026-89482: nvme-tcp: do not accept C2HData based on blk_rq_payload_bytes() alone (bsc#1280350).
    - CVE-2026-89532: svcrdma: Fix pcl_for_each_segment for empty chunks (bsc#1280985).
    - CVE-2026-89533: svcrdma: Fix offset arithmetic in read_chunk_range (bsc#1280993).
    - CVE-2026-89542: SUNRPC: harden gss_krb5_unwrap_v2 against short tokens (bsc#1280387).
    - CVE-2026-89544: SUNRPC: fix gssx_dec_option_array error path bugs (bsc#1280758).
    - CVE-2026-89551: SUNRPC: xdr_buf_trim: clamp buf->len to avoid underflow (bsc#1280727).
    - CVE-2026-89569: Bluetooth: RFCOMM: serialize security confirmation handling (bsc#1280733).
    - CVE-2026-89603: entry: Fix seccomp bypass after ptrace with TSYNC (bsc#1280923).
    - CVE-2026-89631: smb: client: reject a tree connect response whose byte count is too small (bsc#1280496).
    - CVE-2026-89636: smb: client: clear ce->tgthint in free_tgts() (bsc#1281042).
    - CVE-2026-89638: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions     (bsc#1281046).
    - CVE-2026-89674: nfsd: fix XDR length calculation in nfsd4_ff_encode_layoutget (bsc#1280243).
    - CVE-2026-89702: nfsd: size fh_verify server sockaddr slot by xpt_locallen (bsc#1280487).
    - CVE-2026-89899: media: cec: disable delayed work before freeing an interrupted transmit (bsc#1281383).
    - CVE-2026-89931: KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit (bsc#1281427).
    - CVE-2026-89968: nvmet-tcp: reject unsolicited H2CData PDUs (bsc#1281229).
    - CVE-2026-90003: futex: Prevent rcuwait use-after-free during requeue PI (bsc#1281295).
    - CVE-2026-90088: Bluetooth: RFCOMM: Validate MTU in rfcomm_apply_pn() to prevent infinite loop     (bsc#1281397).
    - CVE-2026-90104: NFSv4.1: zero referring call lists before decoding (bsc#1281546).
    - CVE-2026-90198: ALSA: core: Fix use-after-free in snd_card_do_free() (bsc#1281818).
    - CVE-2026-90259: btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data()     (bsc#1281680).
    - CVE-2026-90308: RDMA/erdma: Hold QP references for AE and CM processing (bsc#1281786).
    - CVE-2026-90309: RDMA/erdma: Hold CQ references when processing EQ events (bsc#1281789).
    - CVE-2026-90413: IB/isert: reject login PDUs declaring more data than was received (bsc#1282113).
    - CVE-2026-90414: IB/isert: reject PDUs declaring more data than (bsc#1282110).
    - CVE-2026-93104: RDMA/rvt: Return NULL after port allocation failure (bsc#1282284).
    - CVE-2026-93782: vhost-scsi: flush backend after device ioctls (bsc#1282906).
    - CVE-2026-100075: RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters (bsc#1282881).

    The following non security issues were fixed:

    - Also reflect disabled BATMAN in supported.conf.
    - Disable CONFIG_BATMAN_ADV (jsc#PED-16892).
    - Disable CONFIG_CAN (jsc#PED-16993).
    - Fif selftests build failure caused by jsc#PED-16401 backport (bsc#1281927).
    - RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables (git-fixes).
    - arm64: Use load LSE atomics for the non-return per-CPU atomic operations (git-fixes).
    - arm64: hibernate: pass HVC_SET_VECTORS args to the resume hvc (git-fixes).
    - arm64: mte: Fix PTRACE_{PEEK,POKE}MTETAGS error documentation (git-fixes).
    - arm64: percpu: Fix LSE operations on {8,16}-bit types (git-fixes).
    - arm64: percpu: Fix this_cpu_and() mask generation (git-fixes).
    - arm64: percpu: Fix this_cpu_write() casting (git-fixes).
    - compiler_types: Introduce __flex_counter() and family (bsc#1280139).
    - default_gfp(): avoid using the 'newfangled' __VA_OPT__ trick (bsc#1280139).
    - docs: tls: document TLS1.3 key updates (bsc#1267564 jsc#PED-16401).
    - firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS (git-fixes).
    - i2c: core: fix irq domain leak on adapter registration failure (git-fixes).
    - kabi: tls add counters for rekey (bsc#1267564 jsc#PED-16401).
    - kernel-binary.spec.in: Fix syntax error.
    - net: mana: Clear RDMA teardown and suspend state in mana_rdma_probe() (git-fixes).
    - net: mana: Reserve extra CQ slot for the fence completion CQE (git-fixes).
    - net: mana: restore the XDP program pointer when pre-allocation fails (git-fixes).
    - net: tls: Pass union tls_crypto_context pointer to memzero_explicit (bsc#1267564 jsc#PED-16401).
    - perf: Reject exited events as group leaders (git-fixes).
    - selftests: tls: add getsockopt test (bsc#1267564 jsc#PED-16401).
    - selftests: tls: add key_generation argument to tls_crypto_info_init (bsc#1267564 jsc#PED-16401).
    - selftests: tls: add rekey tests (bsc#1267564 jsc#PED-16401).
    - slab.h: disable completely broken overflow handling in flex allocations (bsc#1280139).
    - slab: Introduce kmalloc_flex() and family (bsc#1280139).
    - slab: Introduce kmalloc_obj() and family (bsc#1280139).
    - slab: recognize @GFP parameter as optional in kernel-doc (bsc#1280139).
    - smb: client: harden DFS cache against invalid target hints (git-fixes).
    - tls: add counters for rekey (bsc#1267564 jsc#PED-16401).
    - tls: block decryption when a rekey is pending (bsc#1267564 jsc#PED-16401).
    - tls: implement rekey for TLS1.3 (bsc#1267564 jsc#PED-16401).
    - tls: skip setting sk_write_space on rekey (bsc#1267564 jsc#PED-16401).
    - x86/mm: Fix pmd_modify() dropping the dirty bit (bsc#1275455).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - btrfs: qgroup: fix a wrong length calculation in qgroup_free_reserved_data() In that function, we round     down the start position and round up the ending position. But during the calculation of @len, we use     round_up(start + len, sectorsize), which is the rounded up end position, not the rounded up length.
    Which results a much larger length, and later we are still using start + len, which is completely     incorrect. Fix it by declaring a local @aligned_start and @aligned_len and use them instead.
    (CVE-2026-90259)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
366749	SUSE SLES12: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:4687-1)	Nessus	SuSE Local Security Checks	Local	high
366742	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:4706-1)	Nessus	SuSE Local Security Checks	Local	high
475630	Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20198.0.0	Tenable Cloud Security	Google COS Security Checks	Local	medium
475630	Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20198.0.0	Tenable Self-Hosted Container Security	Google COS Security Checks	Local	medium
366039	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:4660-1)	Nessus	SuSE Local Security Checks	Local	high
365258	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3192)	Nessus	Amazon Linux Local Security Checks	Local	high
347876	Linux Distros Unpatched Vulnerability : CVE-2026-90259	Nessus	Misc.	Local	medium

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CVE-2026-90259

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