In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:1241-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
    - CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
    - CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
    - CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
    - CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
    - CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
    - CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
    - CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
    - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
    - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync     (bsc#1239095).
    - CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
    - CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
    - CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
    - CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
    - CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).


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-2025:1027-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
    - CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
    - CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
    - CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
    - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
    - CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
    - CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
    - CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).


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 version of kernel installed on the remote host is prior to 5.15.57-29.131. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-068 advisory.

    A flaw was found in hw. Aliases in the branch predictor may cause some AMD processors to predict the wrong     branch type, potentially leading to information disclosure. (CVE-2022-23825)

    Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow     an authorized user to potentially enable information disclosure via local access. (CVE-2022-26373)

    A flaw was found in hw. The unprotected alternative channel of return branch target prediction in some     Intel(R) Processors may allow an authorized user to enable information disclosure via local access.
    (CVE-2022-28693)

    A flaw was found in hw. Mis-trained branch predictions for return instructions may allow arbitrary     speculative code execution under certain microarchitecture-dependent conditions. (CVE-2022-29900)

    Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their     retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can     hijack return instructions to achieve arbitrary speculative code execution under certain     microarchitecture-dependent conditions. (CVE-2022-29901)

    A memory access flaw was found in the Linux kernel's XEN hypervisor for the virtual machine. This flaw     allows a local user to crash the system or potentially escalate their privileges on the system.
    (CVE-2022-36123)

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

    vt: fix memory overlapping when deleting chars in the buffer (CVE-2022-48627)

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

    x86/speculation: Fill RSB on vmexit for IBRS (CVE-2022-49611)

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

    serial: 8250: Fix PM usage_count for console handover (CVE-2022-49613)

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

    net: tipc: fix possible refcount leak in tipc_sk_create() (CVE-2022-49620)

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

    ima: Fix potential memory leak in ima_init_crypto() (CVE-2022-49627)

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

    nexthop: Fix data-races around nexthop_compat_mode. (CVE-2022-49629)

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

    tcp: Fix a data-race around sysctl_tcp_ecn_fallback. (CVE-2022-49630)

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

    raw: Fix a data-race around sysctl_raw_l3mdev_accept. (CVE-2022-49631)

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

    icmp: Fix a data-race around sysctl_icmp_errors_use_inbound_ifaddr. (CVE-2022-49632)

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

    icmp: Fix data-races around sysctl_icmp_echo_enable_probe. (CVE-2022-49633)

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

    sysctl: Fix data-races in proc_dou8vec_minmax(). (CVE-2022-49634)

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

    ipv4: Fix a data-race around sysctl_fib_sync_mem. (CVE-2022-49637)

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

    icmp: Fix data-races around sysctl. (CVE-2022-49638)

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

    cipso: Fix data-races around sysctl. (CVE-2022-49639)

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

    sysctl: Fix data races in proc_douintvec_minmax(). (CVE-2022-49640)

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

    sysctl: Fix data races in proc_douintvec(). (CVE-2022-49641)

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

    ima: Fix a potential integer overflow in ima_appraise_measurement (CVE-2022-49643)

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

    drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector() (CVE-2022-49644)

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

    cgroup: Use separate src/dst nodes when preloading css_sets for migration (CVE-2022-49647)

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

    xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue (CVE-2022-49649)

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

    ext4: avoid resizing to a partial cluster size (CVE-2022-50020)

Tenable has extracted the preceding description block directly from the tested product 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: sysctl: Fix data-races in     proc_dou8vec_minmax(). A sysctl variable is accessed concurrently, and there is always a chance of data-     race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch     changes proc_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the     sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add     annotations on the other subsystem's side. (CVE-2022-49634)

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2458 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)

    * net/ulp: use-after-free in listening ULP sockets (CVE-2023-0461)

    * cpu: AMD CPUs may transiently execute beyond unconditional direct branch (CVE-2021-26341)

    * malicious data for FBIOPUT_VSCREENINFO ioctl may cause OOB write memory (CVE-2021-33655)

    * possible race condition in drivers/tty/tty_buffers.c (CVE-2022-1462)

    * KVM: NULL pointer dereference in kvm_mmu_invpcid_gva (CVE-2022-1789)

    * use-after-free in free_pipe_info() could lead to privilege escalation (CVE-2022-1882)

    * KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks (CVE-2022-2196)

    * netfilter: nf_conntrack_irc message handling issue (CVE-2022-2663)

    * race condition in xfrm_probe_algs can lead to OOB read/write (CVE-2022-3028)

    * out-of-bounds read in fib_nh_match of the file net/ipv4/fib_semantics.c (CVE-2022-3435)

    * race condition in hugetlb_no_page() in mm/hugetlb.c (CVE-2022-3522)

    * memory leak in ipv6_renew_options() (CVE-2022-3524)

    * data races around icsk->icsk_af_ops in do_ipv6_setsockopt (CVE-2022-3566)

    * data races around sk->sk_prot (CVE-2022-3567)

    * memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c (CVE-2022-3619)

    * denial of service in follow_page_pte in mm/gup.c due to poisoned pte entry (CVE-2022-3623)

    * use-after-free after failed devlink reload in devlink_param_get (CVE-2022-3625)

    * USB-accessible buffer overflow in brcmfmac (CVE-2022-3628)

    * use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c (CVE-2022-3640)

    * Double-free in split_2MB_gtt_entry when function intel_gvt_dma_map_guest_page failed (CVE-2022-3707)

    * mptcp: NULL pointer dereference in subflow traversal at disconnect time (CVE-2022-4128)

    * l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference (CVE-2022-4129)

    * igmp: use-after-free in ip_check_mc_rcu when opening and closing inet sockets (CVE-2022-20141)

    * lockdown bypass using IMA (CVE-2022-21505)

    * double free in usb_8dev_start_xmit in drivers/net/can/usb/usb_8dev.c (CVE-2022-28388)

    * network backend may cause Linux netfront to use freed SKBs (XSA-405) (CVE-2022-33743)

    * unmap_mapping_range() race with munmap() on VM_PFNMAP mappings leads to stale TLB entry (CVE-2022-39188)

    * TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning     (CVE-2022-39189)

    * u8 overflow problem in cfg80211_update_notlisted_nontrans() (CVE-2022-41674)

    * use-after-free related to leaf anon_vma double reuse (CVE-2022-42703)

    * use-after-free in bss_ref_get in net/wireless/scan.c (CVE-2022-42720)

    * BSS list corruption in cfg80211_add_nontrans_list in net/wireless/scan.c (CVE-2022-42721)

    * Denial of service in beacon protection for P2P-device (CVE-2022-42722)

    * memory corruption in usbmon driver (CVE-2022-43750)

    * NULL pointer dereference in traffic control subsystem (CVE-2022-47929)

    * NULL pointer dereference in rawv6_push_pending_frames (CVE-2023-0394)

    * use-after-free due to race condition in qdisc_graft() (CVE-2023-0590)

    * use-after-free caused by invalid pointer hostname in fs/cifs/connect.c (CVE-2023-1195)

    * denial of service in tipc_conn_close (CVE-2023-1382)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 version of kernel installed on the remote host is prior to 5.10.178-162.673. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-031 advisory.

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

    sysctl: Fix data-races in proc_dou8vec_minmax(). (CVE-2022-49634)

    An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores     an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system. (CVE-2023-2124)

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

    Drivers: vmbus: Check for channel allocation before looking up relids (CVE-2023-53273)

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

    sctp: check send stream number after wait_for_sndbuf (CVE-2023-53296)

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

    sctp: fix a potential overflow in sctp_ifwdtsn_skip (CVE-2023-53372)

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

    tracing: Free error logs of tracing instances (CVE-2023-53375)

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

    nilfs2: fix sysfs interface lifetime (CVE-2023-53440)

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

    scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param() (CVE-2023-53464)

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

    RDMA/cma: Allow UD qp_type to join multicast only (CVE-2023-53525)

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

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

ID	Name	Product	Family	Severity
234407	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1241-1)	Nessus	SuSE Local Security Checks	high
233410	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1027-1)	Nessus	SuSE Local Security Checks	high
232916	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-068)	Nessus	Amazon Linux Local Security Checks	high
226234	Linux Distros Unpatched Vulnerability : CVE-2022-49634	Nessus	Misc.	medium
175477	RHEL 9 : kernel (RHSA-2023:2458)	Nessus	Red Hat Local Security Checks	high
174973	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-031 (ALASKERNEL-5.10-2023-031)	Nessus	Amazon Linux Local Security Checks	high

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CVE-2022-49634

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