In the Linux kernel, the following vulnerability has been resolved: s390/ism: fix concurrency management in ism_cmd() The s390x ISM device data sheet clearly states that only one request-response sequence is allowable per ISM function at any point in time. Unfortunately as of today the s390/ism driver in Linux does not honor that requirement. This patch aims to rectify that. This problem was discovered based on Aliaksei's bug report which states that for certain workloads the ISM functions end up entering error state (with PEC 2 as seen from the logs) after a while and as a consequence connections handled by the respective function break, and for future connection requests the ISM device is not considered -- given it is in a dysfunctional state. During further debugging PEC 3A was observed as well. A kernel message like [ 1211.244319] zpci: 061a:00:00.0: Event 0x2 reports an error for PCI function 0x61a is a reliable indicator of the stated function entering error state with PEC 2. Let me also point out that a kernel message like [ 1211.244325] zpci: 061a:00:00.0: The ism driver bound to the device does not support error recovery is a reliable indicator that the ISM function won't be auto-recovered because the ISM driver currently lacks support for it. On a technical level, without this synchronization, commands (inputs to the FW) may be partially or fully overwritten (corrupted) by another CPU trying to issue commands on the same function. There is hard evidence that this can lead to DMB token values being used as DMB IOVAs, leading to PEC 2 PCI events indicating invalid DMA. But this is only one of the failure modes imaginable. In theory even completely losing one command and executing another one twice and then trying to interpret the outputs as if the command we intended to execute was actually executed and not the other one is also possible. Frankly, I don't feel confident about providing an exhaustive list of possible consequences.

suse_linux SUSE-SU-2025:03600-1: SUSE openSUSE 15 : Security update for the Linux Kernel (Important) (SUSE-SU-2025:03600-1)

The remote SUSE Linux SLES15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:3751-1 advisory.

    The SUSE Linux Enterprise 15 SP6 RT kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2023-53261: coresight: Fix memory leak in acpi_buffer->pointer (bsc#1249770).
    - CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disabled (bsc#1240324).
    - CVE-2025-22022: usb: xhci: Apply the link chain quirk on NEC isoc endpoints (bsc#1241292).
    - CVE-2025-38119: scsi: core: ufs: Fix a hang in the error handler (bsc#1245700).
    - CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
    - CVE-2025-38263: bcache: fix NULL pointer in cache_set_flush() (bsc#1246248).
    - CVE-2025-38351: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (bsc#1246782).
    - CVE-2025-38402: idpf: return 0 size for RSS key if not supported (bsc#1247262).
    - CVE-2025-38408: genirq/irq_sim: Initialize work context pointers properly (bsc#1247126).
    - CVE-2025-38418: remoteproc: core: Release rproc->clean_table after rproc_attach() fails (bsc#1247137).
    - CVE-2025-38419: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in     rproc_attach() (bsc#1247136).
    - CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (bsc#1247099).
    - CVE-2025-38466: perf: Revert to requiring CAP_SYS_ADMIN for uprobes (bsc#1247442).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38514: rxrpc: Fix oops due to non-existence of prealloc backlog struct (bsc#1248202).
    - CVE-2025-38526: ice: add NULL check in eswitch lag check (bsc#1248192).
    - CVE-2025-38527: smb: client: fix use-after-free in cifs_oplock_break (bsc#1248199).
    - CVE-2025-38533: net: libwx: fix the using of Rx buffer DMA (bsc#1248200).
    - CVE-2025-38544: rxrpc: Fix bug due to prealloc collision (bsc#1248225).
    - CVE-2025-38556: HID: core: Harden s32ton() against conversion to 0 bits (bsc#1248296).
    - CVE-2025-38574: pptp: ensure minimal skb length in pptp_xmit() (bsc#1248365).
    - CVE-2025-38584: padata: Fix pd UAF once and for all (bsc1248343).
    - CVE-2025-38590: net/mlx5e: Remove skb secpath if xfrm state is not found (bsc#1248360).
    - CVE-2025-38593: kABI workaround for bluetooth discovery_state change (bsc#1248357).
    - CVE-2025-38595: xen: fix UAF in dmabuf_exp_from_pages() (bsc#1248380).
    - CVE-2025-38597: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port     (bsc#1248378).
    - CVE-2025-38605: wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type() (bsc#1248334).
    - CVE-2025-38614: eventpoll: Fix semi-unbounded recursion (bsc#1248392).
    - CVE-2025-38616: tls: handle data disappearing from under the TLS ULP (bsc#1248512).
    - CVE-2025-38622: net: drop UFO packets in udp_rcv_segment() (bsc#1248619).
    - CVE-2025-38623: PCI: pnv_php: Fix surprise plug detection and recovery (bsc#1248610).
    - CVE-2025-38639: netfilter: xt_nfacct: do not assume acct name is null-terminated (bsc#1248674).
    - CVE-2025-38640: bpf: Disable migration in nf_hook_run_bpf() (bsc#1248622).
    - CVE-2025-38643: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() (bsc#1248681).
    - CVE-2025-38645: net/mlx5: Check device memory pointer before usage (bsc#1248626).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38660: [ceph] parse_longname(): strrchr() expects NUL-terminated string (bsc#1248634).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38668: regulator: core: fix NULL dereference on unbind due to stale coupling data     (bsc#1248647).
    - CVE-2025-38676: iommu/amd: Avoid stack buffer overflow from kernel cmdline (bsc#1248775).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38679: media: venus: Fix OOB read due to missing payload bound check (bsc#1249202).
    - CVE-2025-38684: net/sched: ets: use old 'nbands' while purging unused classes (bsc#1249156).
    - CVE-2025-38701: ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr (bsc#1249258).
    - CVE-2025-38705: drm/amd/pm: fix null pointer access (bsc#1249334).
    - CVE-2025-38709: loop: Avoid updating block size under exclusive owner (bsc#1249199).
    - CVE-2025-38721: netfilter: ctnetlink: fix refcount leak on table dump (bsc#1249176).
    - CVE-2025-38722: habanalabs: fix UAF in export_dmabuf() (bsc#1249163).
    - CVE-2025-38730: io_uring/net: commit partial buffers on retry (bsc#1249172).
    - CVE-2025-38732: netfilter: nf_reject: do not leak dst refcount for loopback packets (bsc#1249262).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-38735: gve: prevent ethtool ops after shutdown (bsc#1249288).
    - CVE-2025-39677: net/sched: Fix backlog accounting in qdisc_dequeue_internal (bsc#1249300).
    - CVE-2025-39678: platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL (bsc#1249290).
    - CVE-2025-39681: x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper (bsc#1249303).
    - CVE-2025-39682: tls: fix handling of zero-length records on the rx_list (bsc#1249284).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39705: drm/amd/display: fix a Null pointer dereference vulnerability (bsc#1249295).
    - CVE-2025-39718: vsock/virtio: Validate length in packet header before skb_put() (bsc#1249305).
    - CVE-2025-39738: btrfs: do not allow relocation of partially dropped subvolumes (bsc#1249540).
    - CVE-2025-39744: rcu: Fix rcu_read_unlock() deadloop due to IRQ work (bsc#1249494).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39749: rcu: Protect ->defer_qs_iw_pending from data race (bsc#1249533).
    - CVE-2025-39754: mm/smaps: fix race between smaps_hugetlb_range and migration (bsc#1249524).
    - CVE-2025-39764: netfilter: ctnetlink: remove refcounting in expectation dumpers (bsc#1249513).
    - CVE-2025-39766: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (bsc#1249510).
    - CVE-2025-39770: net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM (bsc#1249508).
    - CVE-2025-39773: net: bridge: fix soft lockup in br_multicast_query_expired() (bsc#1249504).
    - CVE-2025-39782: jbd2: prevent softlockup in jbd2_log_do_checkpoint() (bsc#1249526).
    - CVE-2025-39787: soc: qcom: mdt_loader: Deal with zero e_shentsize (bsc#1249545).
    - CVE-2025-39797: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (bsc#1249608).
    - CVE-2025-39810: bnxt_en: Fix memory corruption when FW resources change during ifdown (bsc#1249975).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39825: smb: client: fix race with concurrent opens in rename(2) (bsc#1250179).
    - CVE-2025-39832: net/mlx5: Fix lockdep assertion on sync reset unload event (bsc#1249901).
    - CVE-2025-39835: xfs: do not propagate ENODATA disk errors into xattr code (bsc#1250025).
    - CVE-2025-39838: cifs: prevent NULL pointer dereference in UTF16 conversion (bsc#1250365).
    - CVE-2025-39842: ocfs2: prevent release journal inode after journal shutdown (bsc#1250267).
    - CVE-2025-39847: ppp: fix memory leak in pad_compress_skb (bsc#1250292).
    - CVE-2025-39850: vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects (bsc#1250276).
    - CVE-2025-39853: i40e: Fix potential invalid access when MAC list is empty (bsc#1250275).
    - CVE-2025-39854: ice: fix NULL access of tx->in_use in ice_ll_ts_intr (bsc#1250297).
    - CVE-2025-39857: net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync() (bsc#1250251).
    - CVE-2025-39865: tee: fix NULL pointer dereference in tee_shm_put (bsc#1250294).
    - CVE-2025-39885: ocfs2: fix recursive semaphore deadlock in fiemap call (bsc#1250407).
    - CVE-2025-40300: x86/vmscape: Warn when STIBP is disabled with SMT (bsc#1247483).


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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03628-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49138: Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (bsc#1238160).
    - CVE-2022-49980: USB: gadget: fix use-after-free read in usb_udc_uevent() (bsc#1245110).
    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2025-23155: net: stmmac: Fix accessing freed irq affinity_hint (bsc#1242573).
    - CVE-2025-37738: ext4: ignore xattrs past end (bsc#1242846).
    - CVE-2025-37885: KVM: x86: Reset IRTE to host control if *new* route isn't postable (bsc#1242960).
    - CVE-2025-37958: mm/huge_memory: fix dereferencing invalid pmd migration entry (bsc#1243539).
    - CVE-2025-38014: dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (bsc#1244732).
    - CVE-2025-38084: mm/hugetlb: unshare page tables during VMA split, not before (bsc#1245498).
    - CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245499).
    - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1245666).
    - CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
    - CVE-2025-38380: i2c/designware: Fix an initialization issue (bsc#1247028).
    - CVE-2025-38470: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime     (bsc#1247288).
    - CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1247317).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() (bsc#1249195).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39790: bus: mhi: host: Detect events pointing to unexpected TREs (bsc#1249548).
    - CVE-2025-39797: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (bsc#1249608).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).


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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03615-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49138: Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (bsc#1238160).
    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
    - CVE-2023-53257: wifi: mac80211: check S1G action frame size (bsc#1249869).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2025-37738: ext4: ignore xattrs past end (bsc#1242846).
    - CVE-2025-37958: mm/huge_memory: fix dereferencing invalid pmd migration entry (bsc#1243539).
    - CVE-2025-38014: dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (bsc#1244732).
    - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1245666).
    - CVE-2025-38380: i2c/designware: Fix an initialization issue (bsc#1247028).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() (bsc#1249195).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39790: bus: mhi: host: Detect events pointing to unexpected TREs (bsc#1249548).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).


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 remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03614-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50242: drivers: net: qlcnic: Fix potential memory leak in qlcnic_sriov_init() (bsc#1249696).
    - CVE-2022-50244: cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter() (bsc#1249647).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50258: wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds()     (bsc#1249947).
    - CVE-2022-50265: kcm: annotate data-races around kcm->rx_wait (bsc#1249744).
    - CVE-2022-50278: PNP: fix name memory leak in pnp_alloc_dev() (bsc#1249715).
    - CVE-2022-50285: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages (bsc#1249803).
    - CVE-2022-50288: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure (bsc#1249802).
    - CVE-2022-50291: kcm: annotate data-races around kcm->rx_psock (bsc#1249798).
    - CVE-2022-50294: wifi: libertas: fix memory leak in lbs_init_adapter() (bsc#1249799).
    - CVE-2022-50297: wifi: ath9k: verify the expected usb_endpoints are present (bsc#1250250).
    - CVE-2022-50304: mm: export bdi_unregister (bsc#1249725).
    - CVE-2022-50311: cxl: Fix refcount leak in cxl_calc_capp_routing (bsc#1249720).
    - CVE-2022-50312: drivers: serial: jsm: fix some leaks in probe (bsc#1249716).
    - CVE-2022-50321: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() (bsc#1249706).
    - CVE-2022-50330: crypto: cavium - prevent integer overflow loading firmware (bsc#1249700).
    - CVE-2022-50349: misc: tifm: fix possible memory leak in tifm_7xx1_switch_media() (bsc#1249920).
    - CVE-2022-50352: net: hns: fix possible memory leak in hnae_ae_register() (bsc#1249922).
    - CVE-2022-50359: media: cx88: Fix a null-ptr-deref bug in buffer_prepare() (bsc#1250269).
    - CVE-2022-50365: skbuff: Account for tail adjustment during pull operations (bsc#1250084).
    - CVE-2022-50375: tty: serial: fsl_lpuart: disable dma rx/tx use flags in lpuart_dma_shutdown     (bsc#1250132).
    - CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250301).
    - CVE-2022-50396: net: sched: fix memory leak in tcindex_set_parms (bsc#1250104).
    - CVE-2022-50402: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() (bsc#1250363).
    - CVE-2022-50405: net/tunnel: wait until all sk_user_data reader finish before releasing the sock     (bsc#1250155).
    - CVE-2022-50406: iomap: iomap: fix memory corruption when recording errors during writeback     (bsc#1250165).
    - CVE-2022-50408: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (bsc#1250391).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2022-50419: Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times (bsc#1250394).
    - CVE-2023-53148: igb: Do not bring the device up after non-fatal error (bsc#1249842).
    - CVE-2023-53153: wifi: cfg80211: Partial revert 'wifi: cfg80211: Fix use after free for wext'     (bsc#1249877).
    - CVE-2023-53176: serial: 8250: Fix oops for port->pm on uart_change_pm() (bsc#1249991).
    - CVE-2023-53178: mm: zswap: fix missing folio cleanup in writeback race path (bsc#1249827 git-fix).
    - CVE-2023-53199: wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails (bsc#1249683).
    - CVE-2023-53201: RDMA/bnxt_re: wraparound mbox producer index (bsc#1249687).
    - CVE-2023-53226: wifi: mwifiex: Fix oob check condition in mwifiex_process_rx_packet (bsc#1249658).
    - CVE-2023-53248: drm/amdgpu: install stub fence into potential unused fence pointers (bsc#1249779).
    - CVE-2023-53254: drivers: base: cacheinfo: Fix shared_cpu_map changes in event of CPU hotplug     (bsc#1249871).
    - CVE-2023-53272: net: ena: fix shift-out-of-bounds in exponential backoff (bsc#1249917).
    - CVE-2023-53277: wifi: iwl3945: Add missing check for create_singlethread_workqueue (bsc#1249936).
    - CVE-2023-53288: drm/client: Fix memory leak in drm_client_modeset_probe (bsc#1250058).
    - CVE-2023-53298: nfc: fix memory leak of se_io context in nfc_genl_se_io (bsc#1249944).
    - CVE-2023-53302: wifi: iwl4965: Add missing check for create_singlethread_workqueue() (bsc#1249958).
    - CVE-2023-53305: Bluetooth: L2CAP: Fix use-after-free (bsc#1250049).
    - CVE-2023-53309: drm/radeon: Fix integer overflow in radeon_cs_parser_init (bsc#1250055).
    - CVE-2023-53317: ext4: fix WARNING in mb_find_extent (bsc#1250081).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53335: RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish() (bsc#1250072).
    - CVE-2023-53344: can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write (bsc#1250023).
    - CVE-2023-53348: btrfs: fix deadlock when aborting transaction during relocation with scrub     (bsc#1250018).
    - CVE-2023-53365: ip6mr: Fix skb_under_panic in ip6mr_cache_report() (bsc#1249988).
    - CVE-2023-53384: wifi: mwifiex: avoid possible NULL skb pointer dereference (bsc#1250127).
    - CVE-2023-53393: RDMA/mlx5: Fix mlx5_ib_get_hw_stats when used for device (bsc#1250114).
    - CVE-2023-53395: ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer (bsc#1250358).
    - CVE-2023-53397: modpost: fix off by one in is_executable_section() (bsc#1250125).
    - CVE-2023-53400: ALSA: hda: Fix Oops by 9.1 surround channel names (bsc#1250328).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2023-53441: bpf: cpumap: Fix memory leak in cpu_map_update_elem (bsc#1250150).
    - CVE-2024-53194: PCI: Fix use-after-free of slot->bus on hot remove (bsc#1235459).
    - CVE-2024-58240: tls: separate no-async decryption request handling from async (bsc#1248847).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38527: smb: client: fix use-after-free in cifs_oplock_break (bsc#1248199).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38574: pptp: ensure minimal skb length in pptp_xmit() (bsc#1248365).
    - CVE-2025-38602: wifi: iwlwifi: Fix error code in iwl_op_mode_dvm_start() (bsc#1248341).
    - CVE-2025-38604: wifi: rtl818x: Kill URBs before clearing tx status queue (bsc#1248333).
    - CVE-2025-38623: PCI: pnv_php: Fix surprise plug detection and recovery (bsc#1248610).
    - CVE-2025-38624: PCI: pnv_php: Clean up allocated IRQs on unplug (bsc#1248617).
    - CVE-2025-38632: pinmux: fix race causing mux_owner NULL with active mux_usecount (bsc#1248669).
    - CVE-2025-38639: netfilter: xt_nfacct: do not assume acct name is null-terminated (bsc#1248674).
    - CVE-2025-38665: can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode     (bsc#1248648).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38701: ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr (bsc#1249258).
    - CVE-2025-38702: fbdev: fix potential buffer overflow in do_register_framebuffer() (bsc#1249254).
    - CVE-2025-38705: drm/amd/pm: fix null pointer access (bsc#1249334).
    - CVE-2025-38712: hfsplus: do not use BUG_ON() in hfsplus_create_attributes_file() (bsc#1249194).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38729: ALSA: usb-audio: Validate UAC3 power domain descriptors, too (bsc#1249164).
    - CVE-2025-38735: gve: prevent ethtool ops after shutdown (bsc#1249288).
    - CVE-2025-39677: net/sched: Fix backlog accounting in qdisc_dequeue_internal (bsc#1249300).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39705: drm/amd/display: fix a Null pointer dereference vulnerability (bsc#1249295).
    - CVE-2025-39706: drm/amdkfd: Destroy KFD debugfs after destroy KFD wq (bsc#1249413).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39754: mm/smaps: fix race between smaps_hugetlb_range and migration (bsc#1249524).
    - CVE-2025-39757: ALSA: usb-audio: Fix size validation in convert_chmap_v3() (bsc#1249515).
    - CVE-2025-39760: usb: core: config: Prevent OOB read in SS endpoint companion parsing (bsc#1249598).
    - CVE-2025-39763: ACPICA: Fix error code path in acpi_ds_call_control_method() (bsc#1249615).
    - CVE-2025-39764: netfilter: ctnetlink: remove refcounting in expectation dumpers (bsc#1249513).
    - CVE-2025-39773: net: bridge: fix soft lockup in br_multicast_query_expired() (bsc#1249504).
    - CVE-2025-39782: jbd2: prevent softlockup in jbd2_log_do_checkpoint() (bsc#1249526).
    - CVE-2025-39787: soc: qcom: mdt_loader: Deal with zero e_shentsize (bsc#1249545).
    - CVE-2025-39800: btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() (bsc#1250177).
    - CVE-2025-39808: HID: hid-ntrig: fix unable to handle page fault in ntrig_report_version() (bsc#1250088).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39833: mISDN: hfcpci: Fix warning when deleting uninitialized timer (bsc#1250028).
    - CVE-2025-39838: cifs: prevent NULL pointer dereference in UTF16 conversion (bsc#1250365).
    - CVE-2025-39847: ppp: fix memory leak in pad_compress_skb (bsc#1250292).
    - CVE-2025-39853: i40e: Fix potential invalid access when MAC list is empty (bsc#1250275).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39863: wifi: brcmfmac: fix use-after-free when rescheduling brcmf_btcoex_info work     (bsc#1250281).
    - CVE-2025-39865: tee: fix NULL pointer dereference in tee_shm_put (bsc#1250294).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).
    - CVE-2025-39885: ocfs2: fix recursive semaphore deadlock in fiemap call (bsc#1250407).
    - CVE-2025-40300: x86/vmscape: Warn when STIBP is disabled with SMT (bsc#1247483).


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 remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03634-1 advisory.

    The SUSE Linux Enterprise 15 SP6 Azure kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2023-53261: coresight: Fix memory leak in acpi_buffer->pointer (bsc#1249770).
    - CVE-2024-46733: btrfs: fix qgroup reserve leaks in cow_file_range (bsc#1230708).
    - CVE-2024-53125: bpf: sync_linked_regs() must preserve subreg_def (bsc#1234156).
    - CVE-2024-58090: sched/core: Prevent rescheduling when interrupts are disabled (bsc#1240324).
    - CVE-2025-22022: usb: xhci: Apply the link chain quirk on NEC isoc endpoints (bsc#1241292).
    - CVE-2025-37885: KVM: x86: Reset IRTE to host control if *new* route isn't postable (bsc#1242960).
    - CVE-2025-38006: net: mctp: Do not access ifa_index when missing (bsc#1244930).
    - CVE-2025-38075: scsi: target: iscsi: Fix timeout on deleted connection (bsc#1244734).
    - CVE-2025-38103: HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() (bsc#1245663).
    - CVE-2025-38119: scsi: core: ufs: Fix a hang in the error handler (bsc#1245700).
    - CVE-2025-38125: net: stmmac: make sure that ptp_rate is not 0 before configuring EST (bsc#1245710).
    - CVE-2025-38146: net: openvswitch: Fix the dead loop of MPLS parse (bsc#1245767).
    - CVE-2025-38160: clk: bcm: rpi: Add NULL check in raspberrypi_clk_register() (bsc#1245780).
    - CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
    - CVE-2025-38185: atm: atmtcp: Free invalid length skb in atmtcp_c_send() (bsc#1246012).
    - CVE-2025-38190: atm: Revert atm_account_tx() if copy_from_iter_full() fails (bsc#1245973).
    - CVE-2025-38201: netfilter: nft_set_pipapo: clamp maximum map bucket size to INT_MAX (bsc#1245977).
    - CVE-2025-38205: drm/amd/display: Avoid divide by zero by initializing dummy pitch to 1 (bsc#1246005).
    - CVE-2025-38208: smb: client: add NULL check in automount_fullpath (bsc#1245815).
    - CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
    - CVE-2025-38245: atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister() (bsc#1246193).
    - CVE-2025-38251: atm: clip: prevent NULL deref in clip_push() (bsc#1246181).
    - CVE-2025-38263: bcache: fix NULL pointer in cache_set_flush() (bsc#1246248).
    - CVE-2025-38351: KVM: x86/hyper-v: Skip non-canonical addresses during PV TLB flush (bsc#1246782).
    - CVE-2025-38360: drm/amd/display: Add more checks for DSC / HUBP ONO guarantees (bsc#1247078).
    - CVE-2025-38402: idpf: return 0 size for RSS key if not supported (bsc#1247262).
    - CVE-2025-38408: genirq/irq_sim: Initialize work context pointers properly (bsc#1247126).
    - CVE-2025-38418: remoteproc: core: Release rproc->clean_table after rproc_attach() fails (bsc#1247137).
    - CVE-2025-38419: remoteproc: core: Cleanup acquired resources when rproc_handle_resources() fails in     rproc_attach() (bsc#1247136).
    - CVE-2025-38439: bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT (bsc#1247155).
    - CVE-2025-38441: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()     (bsc#1247167).
    - CVE-2025-38444: raid10: cleanup memleak at raid10_make_request (bsc#1247162).
    - CVE-2025-38445: md/raid1: Fix stack memory use after return in raid1_reshape (bsc#1247229).
    - CVE-2025-38456: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (bsc#1247099).
    - CVE-2025-38458: atm: clip: Fix NULL pointer dereference in vcc_sendmsg() (bsc#1247116).
    - CVE-2025-38459: atm: clip: Fix infinite recursive call of clip_push() (bsc#1247119).
    - CVE-2025-38464: tipc: Fix use-after-free in tipc_conn_close() (bsc#1247112).
    - CVE-2025-38466: perf: Revert to requiring CAP_SYS_ADMIN for uprobes (bsc#1247442).
    - CVE-2025-38472: netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (bsc#1247313).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38490: net: libwx: remove duplicate page_pool_put_full_page() (bsc#1247243).
    - CVE-2025-38491: mptcp: make fallback action and fallback decision atomic (bsc#1247280).
    - CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns     (bsc#1247976).
    - CVE-2025-38500: xfrm: interface: fix use-after-free after changing collect_md xfrm interface     (bsc#1248088).
    - CVE-2025-38506: KVM: Allow CPU to reschedule while setting per-page memory attributes (bsc#1248186).
    - CVE-2025-38514: rxrpc: Fix oops due to non-existence of prealloc backlog struct (bsc#1248202).
    - CVE-2025-38520: drm/amdkfd: Do not call mmput from MMU notifier callback (bsc#1248217).
    - CVE-2025-38524: rxrpc: Fix recv-recv race of completed call (bsc#1248194).
    - CVE-2025-38526: ice: add NULL check in eswitch lag check (bsc#1248192).
    - CVE-2025-38527: smb: client: fix use-after-free in cifs_oplock_break (bsc#1248199).
    - CVE-2025-38528: bpf: Reject %p% format string in bprintf-like helpers (bsc#1248198).
    - CVE-2025-38531: iio: common: st_sensors: Fix use of uninitialize device structs (bsc#1248205).
    - CVE-2025-38533: net: libwx: fix the using of Rx buffer DMA (bsc#1248200).
    - CVE-2025-38544: rxrpc: Fix bug due to prealloc collision (bsc#1248225).
    - CVE-2025-38546: atm: clip: Fix memory leak of struct clip_vcc (bsc#1248223).
    - CVE-2025-38556: HID: core: Harden s32ton() against conversion to 0 bits (bsc#1248296).
    - CVE-2025-38560: x86/sev: Evict cache lines during SNP memory validation (bsc#1248312).
    - CVE-2025-38574: pptp: ensure minimal skb length in pptp_xmit() (bsc#1248365).
    - CVE-2025-38584: padata: Fix pd UAF once and for all (bsc1248343).
    - CVE-2025-38585: staging: media: atomisp: Fix stack buffer overflow in gmin_get_var_int() (bsc#1248355).
    - CVE-2025-38590: net/mlx5e: Remove skb secpath if xfrm state is not found (bsc#1248360).
    - CVE-2025-38591: bpf: Reject narrower access to pointer ctx fields (bsc#1248363).
    - CVE-2025-38593: kABI workaround for bluetooth discovery_state change (bsc#1248357).
    - CVE-2025-38595: xen: fix UAF in dmabuf_exp_from_pages() (bsc#1248380).
    - CVE-2025-38597: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port     (bsc#1248378).
    - CVE-2025-38605: wifi: ath12k: Pass ab pointer directly to ath12k_dp_tx_get_encap_type() (bsc#1248334).
    - CVE-2025-38608: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls (bsc#1248338).
    - CVE-2025-38614: eventpoll: Fix semi-unbounded recursion (bsc#1248392).
    - CVE-2025-38616: tls: handle data disappearing from under the TLS ULP (bsc#1248512).
    - CVE-2025-38618: vsock: Do not allow binding to VMADDR_PORT_ANY (bsc#1248511).
    - CVE-2025-38622: net: drop UFO packets in udp_rcv_segment() (bsc#1248619).
    - CVE-2025-38623: PCI: pnv_php: Fix surprise plug detection and recovery (bsc#1248610).
    - CVE-2025-38639: netfilter: xt_nfacct: do not assume acct name is null-terminated (bsc#1248674).
    - CVE-2025-38640: bpf: Disable migration in nf_hook_run_bpf() (bsc#1248622).
    - CVE-2025-38643: wifi: cfg80211: Add missing lock in cfg80211_check_and_end_cac() (bsc#1248681).
    - CVE-2025-38645: net/mlx5: Check device memory pointer before usage (bsc#1248626).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38660: [ceph] parse_longname(): strrchr() expects NUL-terminated string (bsc#1248634).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38668: regulator: core: fix NULL dereference on unbind due to stale coupling data     (bsc#1248647).
    - CVE-2025-38676: iommu/amd: Avoid stack buffer overflow from kernel cmdline (bsc#1248775).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38679: media: venus: Fix OOB read due to missing payload bound check (bsc#1249202).
    - CVE-2025-38684: net/sched: ets: use old 'nbands' while purging unused classes (bsc#1249156).
    - CVE-2025-38701: ext4: do not BUG when INLINE_DATA_FL lacks system.data xattr (bsc#1249258).
    - CVE-2025-38705: drm/amd/pm: fix null pointer access (bsc#1249334).
    - CVE-2025-38709: loop: Avoid updating block size under exclusive owner (bsc#1249199).
    - CVE-2025-38721: netfilter: ctnetlink: fix refcount leak on table dump (bsc#1249176).
    - CVE-2025-38722: habanalabs: fix UAF in export_dmabuf() (bsc#1249163).
    - CVE-2025-38730: io_uring/net: commit partial buffers on retry (bsc#1249172).
    - CVE-2025-38732: netfilter: nf_reject: do not leak dst refcount for loopback packets (bsc#1249262).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-38735: gve: prevent ethtool ops after shutdown (bsc#1249288).
    - CVE-2025-39677: net/sched: Fix backlog accounting in qdisc_dequeue_internal (bsc#1249300).
    - CVE-2025-39678: platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL (bsc#1249290).
    - CVE-2025-39681: x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper (bsc#1249303).
    - CVE-2025-39682: tls: fix handling of zero-length records on the rx_list (bsc#1249284).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39705: drm/amd/display: fix a Null pointer dereference vulnerability (bsc#1249295).
    - CVE-2025-39718: vsock/virtio: Validate length in packet header before skb_put() (bsc#1249305).
    - CVE-2025-39738: btrfs: do not allow relocation of partially dropped subvolumes (bsc#1249540).
    - CVE-2025-39744: rcu: Fix rcu_read_unlock() deadloop due to IRQ work (bsc#1249494).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39749: rcu: Protect ->defer_qs_iw_pending from data race (bsc#1249533).
    - CVE-2025-39754: mm/smaps: fix race between smaps_hugetlb_range and migration (bsc#1249524).
    - CVE-2025-39764: netfilter: ctnetlink: remove refcounting in expectation dumpers (bsc#1249513).
    - CVE-2025-39766: net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit (bsc#1249510).
    - CVE-2025-39770: net: gso: Forbid IPv6 TSO with extensions on devices with only IPV6_CSUM (bsc#1249508).
    - CVE-2025-39773: net: bridge: fix soft lockup in br_multicast_query_expired() (bsc#1249504).
    - CVE-2025-39782: jbd2: prevent softlockup in jbd2_log_do_checkpoint() (bsc#1249526).
    - CVE-2025-39787: soc: qcom: mdt_loader: Deal with zero e_shentsize (bsc#1249545).
    - CVE-2025-39797: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (bsc#1249608).
    - CVE-2025-39810: bnxt_en: Fix memory corruption when FW resources change during ifdown (bsc#1249975).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39825: smb: client: fix race with concurrent opens in rename(2) (bsc#1250179).
    - CVE-2025-39828: kABI workaround for struct atmdev_ops extension (bsc#1250205).
    - CVE-2025-39832: net/mlx5: Fix lockdep assertion on sync reset unload event (bsc#1249901).
    - CVE-2025-39835: xfs: do not propagate ENODATA disk errors into xattr code (bsc#1250025).
    - CVE-2025-39838: cifs: prevent NULL pointer dereference in UTF16 conversion (bsc#1250365).
    - CVE-2025-39842: ocfs2: prevent release journal inode after journal shutdown (bsc#1250267).
    - CVE-2025-39847: ppp: fix memory leak in pad_compress_skb (bsc#1250292).
    - CVE-2025-39850: vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects (bsc#1250276).
    - CVE-2025-39853: i40e: Fix potential invalid access when MAC list is empty (bsc#1250275).
    - CVE-2025-39854: ice: fix NULL access of tx->in_use in ice_ll_ts_intr (bsc#1250297).
    - CVE-2025-39857: net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync() (bsc#1250251).
    - CVE-2025-39865: tee: fix NULL pointer dereference in tee_shm_put (bsc#1250294).
    - CVE-2025-39885: ocfs2: fix recursive semaphore deadlock in fiemap call (bsc#1250407).
    - CVE-2025-40300: x86/vmscape: Warn when STIBP is disabled with SMT (bsc#1247483).


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.

  - s390/ism: fix concurrency management in ism_cmd() The s390x ISM device data sheet clearly states that only     one request-response sequence is allowable per ISM function at any point in time. Unfortunately as of     today the s390/ism driver in Linux does not honor that requirement. This patch aims to rectify that. This     problem was discovered based on Aliaksei's bug report which states that for certain workloads the ISM     functions end up entering error state (with PEC 2 as seen from the logs) after a while and as a     consequence connections handled by the respective function break, and for future connection requests the     ISM device is not considered -- given it is in a dysfunctional state. During further debugging PEC 3A was     observed as well. A kernel message like [ 1211.244319] zpci: 061a:00:00.0: Event 0x2 reports an error for     PCI function 0x61a is a reliable indicator of the stated function entering error state with PEC 2. Let me     also point out that a kernel message like [ 1211.244325] zpci: 061a:00:00.0: The ism driver bound to the     device does not support error recovery is a reliable indicator that the ISM function won't be auto-     recovered because the ISM driver currently lacks support for it. On a technical level, without this     synchronization, commands (inputs to the FW) may be partially or fully overwritten (corrupted) by another     CPU trying to issue commands on the same function. There is hard evidence that this can lead to DMB token     values being used as DMB IOVAs, leading to PEC 2 PCI events indicating invalid DMA. But this is only one     of the failure modes imaginable. In theory even completely losing one command and executing another one     twice and then trying to interpret the outputs as if the command we intended to execute was actually     executed and not the other one is also possible. Frankly, I don't feel confident about providing an     exhaustive list of possible consequences. (CVE-2025-39726)

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

ID	Name	Product	Family	Severity
271407	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2025:3751-1)	Nessus	SuSE Local Security Checks	high
270857	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03628-1)	Nessus	SuSE Local Security Checks	high
270837	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03615-1)	Nessus	SuSE Local Security Checks	high
270831	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:03614-1)	Nessus	SuSE Local Security Checks	high
270738	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2025:03634-1)	Nessus	SuSE Local Security Checks	high
261634	Linux Distros Unpatched Vulnerability : CVE-2025-39726	Nessus	Misc.	medium

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CVE-2025-39726

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