In the Linux kernel, the following vulnerability has been resolved: net: Fix icmp host relookup triggering ip_rt_bug arp link failure may trigger ip_rt_bug while xfrm enabled, call trace is: WARNING: CPU: 0 PID: 0 at net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20 Modules linked in: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:ip_rt_bug+0x14/0x20 Call Trace: <IRQ> ip_send_skb+0x14/0x40 __icmp_send+0x42d/0x6a0 ipv4_link_failure+0xe2/0x1d0 arp_error_report+0x3c/0x50 neigh_invalidate+0x8d/0x100 neigh_timer_handler+0x2e1/0x330 call_timer_fn+0x21/0x120 __run_timer_base.part.0+0x1c9/0x270 run_timer_softirq+0x4c/0x80 handle_softirqs+0xac/0x280 irq_exit_rcu+0x62/0x80 sysvec_apic_timer_interrupt+0x77/0x90 The script below reproduces this scenario: ip xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \ dir out priority 0 ptype main flag localok icmp ip l a veth1 type veth ip a a 192.168.141.111/24 dev veth0 ip l s veth0 up ping 192.168.141.155 -c 1 icmp_route_lookup() create input routes for locally generated packets while xfrm relookup ICMP traffic.Then it will set input route (dst->out = ip_rt_bug) to skb for DESTUNREACH. For ICMP err triggered by locally generated packets, dst->dev of output route is loopback. Generally, xfrm relookup verification is not required on loopback interfaces (net.ipv4.conf.lo.disable_xfrm = 1). Skip icmp relookup for locally generated packets to fix it.

suse_linux SUSE-SU-2025:0856-1: SUSE SLED15 / SLES15 / openSUSE 15 : Security update for the Linux Kernel (Important) (SUSE-SU-2025:0856-1)

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-2025:0847-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2024-26708: mptcp: fix inconsistent state on fastopen race (bsc#1222672).
    - CVE-2024-40980: drop_monitor: replace spin_lock by raw_spin_lock (bsc#1227937).
    - CVE-2024-44974: mptcp: pm: avoid possible UaF when selecting endp (bsc#1230235).
    - CVE-2024-45009: mptcp: pm: only decrement add_addr_accepted for MPJ req (bsc#1230438).
    - CVE-2024-45010: mptcp: pm: only mark 'subflow' endp as available (bsc#1230439).
    - CVE-2024-46858: mptcp: pm: Fix uaf in __timer_delete_sync (bsc#1231088).
    - CVE-2024-50029: Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync (bsc#1231949).
    - CVE-2024-50036: net: do not delay dst_entries_add() in dst_release() (bsc#1231912).
    - CVE-2024-50085: mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow (bsc#1232508).
    - CVE-2024-50142: xfrm: validate new SA's prefixlen using SA family when sel.family is unset     (bsc#1233028).
    - CVE-2024-50185: kABI fix for mptcp: handle consistently DSS corruption (bsc#1233109).
    - CVE-2024-50294: rxrpc: Fix missing locking causing hanging calls (bsc#1233483).
    - CVE-2024-53123: mptcp: error out earlier on disconnect (bsc#1234070).
    - CVE-2024-53147: exfat: fix out-of-bounds access of directory entries (bsc#1234857).
    - CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
    - CVE-2024-53177: smb: prevent use-after-free due to open_cached_dir error paths (bsc#1234896).
    - CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
    - CVE-2024-56568: iommu/arm-smmu: Defer probe of clients after smmu device bound (bsc#1235032).
    - CVE-2024-56592: bpf: Call free_htab_elem() after htab_unlock_bucket() (bsc#1235244).
    - CVE-2024-56633: selftests/bpf: Add apply_bytes test to test_txmsg_redir_wait_sndmem in test_sockmap     (bsc#1235485).
    - CVE-2024-56647: net: Fix icmp host relookup triggering ip_rt_bug (bsc#1235435).
    - CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
    - CVE-2024-56720: bpf, sockmap: Several fixes to bpf_msg_pop_data (bsc#1235592).
    - CVE-2024-57882: mptcp: fix TCP options overflow. (bsc#1235914).
    - CVE-2024-57994: ptr_ring: do not block hard interrupts in ptr_ring_resize_multiple() (bsc#1237901).
    - CVE-2025-21636: sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy (bsc#1236113).
    - CVE-2025-21637: sctp: sysctl: udp_port: avoid using current->nsproxy (bsc#1236114).
    - CVE-2025-21638: sctp: sysctl: auth_enable: avoid using current->nsproxy (bsc#1236115).
    - CVE-2025-21639: sctp: sysctl: rto_min/max: avoid using current->nsproxy (bsc#1236122).
    - CVE-2025-21640: sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy (bsc#1236123).
    - CVE-2025-21647: sched: sch_cake: add bounds checks to host bulk flow fairness counts (bsc#1236133).
    - CVE-2025-21665: filemap: avoid truncating 64-bit offset to 32 bits (bsc#1236684).
    - CVE-2025-21666: vsock: prevent null-ptr-deref in vsock_*[has_data|has_space] (bsc#1236680).
    - CVE-2025-21667: iomap: avoid avoid truncating 64-bit offset to 32 bits (bsc#1236681).
    - CVE-2025-21668: pmdomain: imx8mp-blk-ctrl: add missing loop break condition (bsc#1236682).
    - CVE-2025-21669: vsock/virtio: discard packets if the transport changes (bsc#1236683).
    - CVE-2025-21670: vsock/bpf: return early if transport is not assigned (bsc#1236685).
    - CVE-2025-21673: smb: client: fix double free of TCP_Server_Info::hostname (bsc#1236689).
    - CVE-2025-21675: net/mlx5: Clear port select structure when fail to create (bsc#1236694).
    - CVE-2025-21680: pktgen: Avoid out-of-bounds access in get_imix_entries (bsc#1236700).
    - CVE-2025-21681: openvswitch: fix lockup on tx to unregistering netdev with carrier (bsc#1236702).
    - CVE-2025-21687: vfio/platform: check the bounds of read/write syscalls (bsc#1237045).
    - CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237028).
    - CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
    - CVE-2025-21728: bpf: Send signals asynchronously if !preemptible (bsc#1237879).
    - CVE-2024-57979: kABI workaround for pps changes (bsc#1238521).
    - CVE-2025-21705: mptcp: handle fastopen disconnect correctly (bsc#1238525).
    - CVE-2025-21715: net: davicom: fix UAF in dm9000_drv_remove (bsc#1237889).
    - CVE-2025-21716: vxlan: Fix uninit-value in vxlan_vnifilter_dump() (bsc#1237891).
    - CVE-2025-21719: ipmr: do not call mr_mfc_uses_dev() for unres entries (bsc#1238860).
    - CVE-2025-21724: iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index()     (bsc#1238863).
    - CVE-2025-21725: smb: client: fix oops due to unset link speed (bsc#1238877).
    - CVE-2025-21733: tracing/osnoise: Fix resetting of tracepoints (bsc#1238494).
    - CVE-2025-21754: btrfs: fix assertion failure when splitting ordered extent after transaction abort     (bsc#1238496).
    - CVE-2025-21767: clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context     (bsc#1238509).
    - CVE-2025-21790: vxlan: check vxlan_vnigroup_init() return value (bsc#1238753).
    - CVE-2025-21795: NFSD: fix hang in nfsd4_shutdown_callback (bsc#1238759).
    - CVE-2025-21799: net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns()     (bsc#1238739).
    - CVE-2025-21802: net: hns3: fix oops when unload drivers paralleling (bsc#1238751).


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-2025:0834-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2021-22543: Fixed improper handling of VM_IO|VM_PFNMAP vmas in KVM (bsc#1186482).
    - CVE-2021-47634: ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (bsc#1237758).
    - CVE-2021-47644: media: staging: media: zoran: move videodev alloc (bsc#1237766).
    - CVE-2022-48953: rtc: cmos: fix build on non-ACPI platforms (bsc#1231941).
    - CVE-2022-48975: gpiolib: fix memory leak in gpiochip_setup_dev() (bsc#1231885).
    - CVE-2022-49006: tracing: Free buffers when a used dynamic event is removed (bsc#1232163).
    - CVE-2022-49076: RDMA/hfi1: Fix use-after-free bug for mm struct (bsc#1237738).
    - CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238033).
    - CVE-2022-49089: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition (bsc#1238041).
    - CVE-2022-49124: x86/mce: Work around an erratum on fast string copy instructions (bsc#1238148).
    - CVE-2022-49134: mlxsw: spectrum: Guard against invalid local ports (bsc#1237982).
    - CVE-2022-49135: drm/amd/display: Fix memory leak (bsc#1238006).
    - CVE-2022-49151: can: mcba_usb: properly check endpoint type (bsc#1237778).
    - CVE-2022-49178: memstick/mspro_block: fix handling of read-only devices (bsc#1238107).
    - CVE-2022-49182: net: hns3: add vlan list lock to protect vlan list (bsc#1238260).
    - CVE-2022-49201: ibmvnic: fix race between xmit and reset (bsc#1238256).
    - CVE-2022-49247: media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED     (bsc#1237783).
    - CVE-2022-49490: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is (bsc#1238275).
    - CVE-2022-49626: sfc: fix use after free when disabling sriov (bsc#1238270).
    - CVE-2022-49661: can: gs_usb: gs_usb_open/close(): fix memory leak (bsc#1237788).
    - CVE-2023-52572: Fixed UAF in cifs_demultiplex_thread() in cifs (bsc#1220946).
    - CVE-2023-52853: hid: cp2112: Fix duplicate workqueue initialization (bsc#1224988).
    - CVE-2023-52924: netfilter: nf_tables: do not skip expired elements during walk (bsc#1236821).
    - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a     server (bsc#1217947).
    - CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5     modules (bsc#1219169).
    - CVE-2024-27397: netfilter: nf_tables: use timestamp to check for set element timeout (bsc#1224095).
    - CVE-2024-49963: mailbox: bcm2835: Fix timeout during suspend mode (bsc#1232147).
    - CVE-2024-49975: uprobes: fix kernel info leak via '[uprobes]' vma (bsc#1232104).
    - CVE-2024-50036: net: do not delay dst_entries_add() in dst_release() (bsc#1231912).
    - CVE-2024-50067: uprobe: avoid out-of-bounds memory access of fetching args (bsc#1232416).
    - CVE-2024-50251: netfilter: nft_payload: sanitize offset and length before calling skb_checksum()     (bsc#1233248).
    - CVE-2024-50304: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find() (bsc#1233522).
    - CVE-2024-53217: nfsd: restore callback functionality for NFSv4.0 (bsc#1234999).
    - CVE-2024-56633: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data (bsc#1235485).
    - CVE-2024-56647: net: Fix icmp host relookup triggering ip_rt_bug (bsc#1235435).
    - CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
    - CVE-2024-56688: sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport (bsc#1235538).
    - CVE-2025-21638: sctp: sysctl: auth_enable: avoid using current->nsproxy (bsc#1236115).
    - CVE-2025-21639: sctp: sysctl: rto_min/max: avoid using current->nsproxy (bsc#1236122).
    - CVE-2025-21640: sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy (bsc#1236123).
    - CVE-2025-21673: smb: client: fix double free of TCP_Server_Info::hostname (bsc#1236689).
    - CVE-2025-21689: USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb() (bsc#1237017).
    - CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service (bsc#1237025).
    - CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
    - CVE-2025-21753: btrfs: fix use-after-free when attempting to join an aborted transaction (bsc#1237875).


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 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0784-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2024-26708: mptcp: fastopen and PM-trigger subflow shutdown can race (bsc#1222672).
    - CVE-2024-44974: mptcp: pm: avoid possible UaF when selecting endp (bsc#1230235).
    - CVE-2024-45009: mptcp: pm: only decrement add_addr_accepted for MPJ req (bsc#1230438).
    - CVE-2024-45010: mptcp: pm: only mark 'subflow' endp as available (bsc#1230439).
    - CVE-2024-50085: mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow (bsc#1232508).
    - CVE-2024-50185: mptcp: handle consistently DSS corruption (bsc#1233109).
    - CVE-2024-53147: exfat: fix out-of-bounds access of directory entries (bsc#1234857).
    - CVE-2024-56568: iommu/arm-smmu: Defer probe of clients after smmu device bound (bsc#1235032).
    - CVE-2024-56647: net: Fix icmp host relookup triggering ip_rt_bug (bsc#1235435).
    - CVE-2024-56720: bpf, sockmap: Several fixes to bpf_msg_pop_data (bsc#1235592).
    - CVE-2025-21636: sctp: sysctl: plpmtud_probe_interval: avoid using current->nsproxy (bsc#1236113).
    - CVE-2025-21637: sctp: sysctl: udp_port: avoid using current->nsproxy (bsc#1236114).
    - CVE-2025-21638: sctp: sysctl: auth_enable: avoid using current->nsproxy (bsc#1236115).
    - CVE-2025-21639: sctp: sysctl: rto_min/max: avoid using current->nsproxy (bsc#1236122).
    - CVE-2025-21640: sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy (bsc#1236123).
    - CVE-2025-21647: sched: sch_cake: add bounds checks to host bulk flow fairness counts (bsc#1236133).
    - CVE-2025-21680: pktgen: Avoid out-of-bounds access in get_imix_entries (bsc#1236700).
    - CVE-2025-21687: vfio/platform: check the bounds of read/write syscalls (bsc#1237045).
    - CVE-2025-21692: net: sched: fix ets qdisc OOB Indexing (bsc#1237028).
    - CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).


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.

  - In the Linux kernel, the following vulnerability has been resolved: net: Fix icmp host relookup triggering     ip_rt_bug arp link failure may trigger ip_rt_bug while xfrm enabled, call trace is: WARNING: CPU: 0 PID: 0     at net/ipv4/route.c:1241 ip_rt_bug+0x14/0x20 Modules linked in: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not     tainted 6.12.0-rc6-00077-g2e1b3cc9d7f7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS     rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:ip_rt_bug+0x14/0x20 Call Trace: <IRQ>     ip_send_skb+0x14/0x40 __icmp_send+0x42d/0x6a0 ipv4_link_failure+0xe2/0x1d0 arp_error_report+0x3c/0x50     neigh_invalidate+0x8d/0x100 neigh_timer_handler+0x2e1/0x330 call_timer_fn+0x21/0x120
    __run_timer_base.part.0+0x1c9/0x270 run_timer_softirq+0x4c/0x80 handle_softirqs+0xac/0x280     irq_exit_rcu+0x62/0x80 sysvec_apic_timer_interrupt+0x77/0x90 The script below reproduces this scenario: ip     xfrm policy add src 0.0.0.0/0 dst 0.0.0.0/0 \ dir out priority 0 ptype main flag localok icmp ip l a veth1     type veth ip a a 192.168.141.111/24 dev veth0 ip l s veth0 up ping 192.168.141.155 -c 1     icmp_route_lookup() create input routes for locally generated packets while xfrm relookup ICMP     traffic.Then it will set input route (dst->out = ip_rt_bug) to skb for DESTUNREACH. For ICMP err triggered     by locally generated packets, dst->dev of output route is loopback. Generally, xfrm relookup verification     is not required on loopback interfaces (net.ipv4.conf.lo.disable_xfrm = 1). Skip icmp relookup for locally     generated packets to fix it. (CVE-2024-56647)

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

An update of the linux package has been released.

ID	Name	Product	Family	Severity
232678	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2025:0847-1)	Nessus	SuSE Local Security Checks	high
232643	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:0834-1)	Nessus	SuSE Local Security Checks	high
232209	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:0784-1)	Nessus	SuSE Local Security Checks	high
231340	Linux Distros Unpatched Vulnerability : CVE-2024-56647	Nessus	Misc.	medium
215222	Photon OS 5.0: Linux PHSA-2025-5.0-0464	Nessus	PhotonOS Local Security Checks	medium

Detections

Analytics

CVE-2024-56647

medium

Tenable Plugins

Coming Soon

high

high

high

medium

medium