远程主机上安装的内核版本低于 4.14.296-222.539。因此，该软件受到 ALAS2-2022-1876 公告中提及的多个漏洞影响。

    在 Linux 内核中，以下漏洞已修复：

    inet：将 sk->sk_rx_dst 完全转换为 RCU 规则 (CVE-2021-47103)

    在用户触发 security_inode_alloc 函数失败并随后调用 nilfs_mdt_destroy 函数的方式中，发现 Linux 内核的 NILFS 文件系统中存在释放后使用缺陷。本地攻击者可利用此缺陷造成系统崩溃，或可能提升其在系统中的权限。(CVE-2022-2978)

    在 Linux 内核中发现一个归类为“存在问题”的漏洞。此漏洞会影响组件 BPF 的 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c 文件的函数 bnx2x_tpa_stop。
    此操纵漏洞会导致内存泄漏。建议应用补丁修复此问题。此漏洞获派的标识符为 VDB-211042。(CVE-2022-3542)

    在 Linux 内核中发现一个归类为“危急”的漏洞。受此问题影响的是组件 Bluetooth 的文件 drivers/isdn/mISDN/l1oip_core.c 的函数 del_timer。操纵此漏洞可导致释放后使用。建议应用补丁修复此问题。此漏洞的标识符为 VDB-211088。(CVE-2022-3565)

    在 Linux 内核中发现一个漏洞。已将此漏洞声明为“有问题”。受此漏洞影响的是组件 BPF 的文件 drivers/net/usb/r8152.c 的函数 intr_callback。此操纵导致记录过量数据。攻击者可远程执行攻击。建议应用补丁修复此问题。此漏洞的相关标识符为 VDB-211363。
    (CVE-2022-3594)

    在 Linux 内核中发现一个漏洞。已将此漏洞归类为“有问题”。受影响的是组件 nilfs2 的文件 fs/nilfs2/inode.c 的函数 nilfs_bmap_lookup_at_level。执行操作可导致空指针取消引用。可以远程发起攻击。建议应用补丁修复此问题。此漏洞的标识符为 VDB-211920。(CVE-2022-3621)

    在 Linux 内核中发现了一个归类为“存在问题”的漏洞。此问题会影响组件 BPF 的文件 fs/nilfs2/segment.c 的函数 nilfs_attach_log_writer。此操纵漏洞会导致内存泄漏。攻击可从远程发起。建议应用补丁修复此问题。此漏洞获派的标识符为 VDB-211961。(CVE-2022-3646)

    在 Linux 内核中发现一个漏洞。已将此漏洞归类为“有问题”。受影响的是组件 BPF 的文件 fs/nilfs2/inode.c 的函数 nilfs_new_inode。操纵此漏洞可导致释放后使用。可以远程发起攻击。建议应用补丁修复此问题。
    此漏洞的标识符为 VDB-211992。(CVE-2022-3649)

    在 5.19 之前版本的 Linux 内核中发现了问题。在 drivers/video/fbdev/pxa3xx-gcu.c 的 pxa3xx_gcu_write 中，count 参数存在 size_t 与 int 类型冲突，攻击者可借此造成整数溢出并绕过大小检查。之后，因为它会被用作 copy_from_user() 的第三个参数，所以可能发生堆溢出。(CVE-2022-39842)

    在 5.19.9 及之前版本的 Linux 内核中，drivers/scsi/stex.c 允许本地用户从内核内存获取敏感信息，因为 stex_queuecommand_lck 缺少针对 PASSTHRU_CMD 案例的 memset。
    (CVE-2022-40768)

    如果物理邻近攻击者在调用 open() 时删除 USB 设备，则 Linux 内核 5.19.12 及更低版本中的 drivers/video/fbdev/smscufx.c 会产生争用条件并由此导致释放后使用，即 ufx_ops_open 和 ufx_usb_disconnect 之间的争用条件。(CVE-2022-41849)

    在 Linux 内核 5.19.12 及更低版本中，drivers/hid/hid-roccat.c 中的 roccat_report_event 存在争用条件并在某些情况下可导致释放后使用问题，此时会在复制 report->value 期间收到报告。(CVE-2022-41850)

    在低于 5.19.15 版本和低于 6.0.1 的 6.x 版本的 Linux 内核中，usbmon 中的 drivers/usb/mon/mon_bin.c 允许用户空间客户端损坏监视器的内部内存。(CVE-2022-43750)

    在 Linux 内核中，以下漏洞已修复：

    netfilter: ebtables：修复 blob 畸形时的内存泄漏 (CVE-2022-48641)

    在 Linux 内核中，以下漏洞已修复：ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header If an AF_PACKET socket is used to send packets through ipvlan and the default xmit function of the AF_PACKET socket is changed from dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and remains as the initial value of 65535, this may trigger slab-out-of-bounds bugs as following: (CVE-2022-48651)

    在 Linux 内核中，以下漏洞已修复：

    mm/slub：修复以在 kmalloc() 失败时返回 errno (CVE-2022-48659)

    在 Linux 内核中，以下漏洞已修复：

    of：fdt：修复 unflatten_dt_nodes() 中的差一错误 (CVE-2022-48672)

    在 Linux 内核中，以下漏洞已修复：

    vhost/vsock：将 kvmalloc/kvfree 用于较大的数据包。 (CVE-2022-50271)

    在 Linux 内核中，以下漏洞已修复：

    md将 snprintf 替换为 scnprintfCVE-2022-50299

    在 Linux 内核中，以下漏洞已修复：

    nbd修复信号中断 nbd_start_device_ioctl() 时的挂起 (CVE-2022-50314)

    在 Linux 内核中，以下漏洞已修复：

    cryptocavium - 加载固件时防止整数溢出 (CVE-2022-50330)

    在 Linux 内核中，以下漏洞已修复：

    ext4修复 ext4_write_info 中的 null-ptr-deref (CVE-2022-50344)

    在 Linux 内核中，以下漏洞已修复：

    fs修复 nilfs_mdt_destroy 中的 UAF/GPF 缺陷 (CVE-2022-50367)

    在 Linux 内核中，以下漏洞已修复：

    BluetoothL2CAP修复释放后使用 (CVE-2022-50386)

    在 Linux 内核中，以下漏洞已修复：

    net如果 sock 死机请勿访问 sk_stream_wait_memory 中的 sock sk_wq (CVE-2022-50409)

    在 Linux 内核中，以下漏洞已修复：

    Bluetoothhci_sysfs修复多次尝试调用 device_add (CVE-2022-50419)

    在 Linux 内核中，以下漏洞已修复：

    ext4避免 DIO 写入之后的内联数据创建时崩溃 (CVE-2022-50435)

    在 Linux 内核中，以下漏洞已修复：

    nilfs2针对检查点获取失败将 WARN_ONs 替换为 nilfs_errorCVE-2022-50519

    在 Linux 内核中，以下漏洞已修复：

    usbhostxhci修复 xhci_alloc_stream_info() 中可能的内存泄漏 (CVE-2022-50544)

    在 Linux 内核中，以下漏洞已修复：

    xfrm释放时以 NULL 更新 ipcomp_scratches (CVE-2022-50569)

    在 Linux 内核中，以下漏洞已修复：

    RDMA/rxe修复内核空指针取消引用错误 (CVE-2022-50671)

    在 Linux 内核中，以下漏洞已修复：

    netrds从 rds_tcp_reset_callbacks() 取消工作时不保持 sock 锁定 (CVE-2022-50676)

    在 Linux 内核中，以下漏洞已修复：

    usbidmouse修复 idmouse_open 中的 uninit-value (CVE-2022-50733)

    在 Linux 内核中，以下漏洞已修复：

    drm阻止 drm_copy_field() 尝试复制空指针 (CVE-2022-50884)

Tenable 已直接从测试产品的安全公告中提取上述描述块。

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

如 TuxCare CENTOS8.5：CLSA-2026：1768775579公告所述，CentOS Linux 8.5 主机上安装的程序包受到多个漏洞的影响。

  - 在 Linux 内核 3.16 至 5.6.2 内 drivers/net/can/slcan.c 中的 slc_bump 中发现问题。攻击者可利用此漏洞，在配置缺少 CONFIG_INIT_STACK_ALL 时，读取未初始化的 can_frame 数据，从而控制内核堆栈内存中的敏感信息，亦即 CID-b9258a2cece4。
    (CVE-2020-11494)

  - 在具有设备文件“/dev/dri/renderD128（或 Dxxx）”的 Linux 内核中，drivers/gpu/vmxgfx/vmxgfx_kms.c 的 vmwgfx 驱动程序中发现越界 (OOB) 内存访问漏洞。在系统中具有用户帐户的本地攻击者可利用此缺陷获得特权，造成拒绝服务 (DoS)。CVE-2022-36280

  - 已修复 Linux 内核中的下列漏洞：ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix The rxstatus->rs_keyix eventually gets passed to test_bit() so we need to ensure that it is within the bitmap. drivers/net/wireless/ath/ath9k/common.c:46 ath9k_cmn_rx_accept() error: passing untrusted data 'rx_stats->rs_keyix' to 'test_bit()' (CVE-2022-49503)

  - 已修复 Linux 内核中的下列漏洞：ata: libata-transport: fix double ata_host_put() in ata_tport_add() In the error path in ata_tport_add(), when calling put_device(), ata_tport_release() is called, it will put the refcount of 'ap->host'. And then ata_host_put() is called again, the refcount is decreased to 0, ata_host_release() is called, all ports are freed and set to null.
    When unbinding the device after failure, ata_host_stop() is called to release the resources, it leads a null-ptr-deref(), because all the ports all freed and null. Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 CPU: 7 PID: 18671 Comm: modprobe Kdump: loaded Tainted: G E 6.1.0-rc3+ #8 pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc :
    ata_host_stop+0x3c/0x84 [libata] lr : release_nodes+0x64/0xd0 Call trace: ata_host_stop+0x3c/0x84 [libata] release_nodes+0x64/0xd0 devres_release_all+0xbc/0x1b0 device_unbind_cleanup+0x20/0x70 really_probe+0x158/0x320 __driver_probe_device+0x84/0x120 driver_probe_device+0x44/0x120
    __driver_attach+0xb4/0x220 bus_for_each_dev+0x78/0xdc driver_attach+0x2c/0x40 bus_add_driver+0x184/0x240 driver_register+0x80/0x13c __pci_register_driver+0x4c/0x60 ahci_pci_driver_init+0x30/0x1000 [ahci] Fix this by removing redundant ata_host_put() in the error path. (CVE-2022-49826)

  - 已修复 Linux 内核中的下列漏洞：capabilities: fix undefined behavior in bit shift for CAP_TO_MASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace:
    <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e
    __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c cap_task_prctl+0x561/0x6f0 security_task_prctl+0x5a/0xb0
    __x64_sys_prctl+0x61/0x8f0 do_syscall_64+0x58/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK> (CVE-2022-49870)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

如 TuxCare CENTOS8.4：CLSA-2026：1768774361公告所述，CentOS Linux 8.4 主机上安装的程序包受到多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand.
    Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472 (CVE-2021-4460)

  - 在具有设备文件“/dev/dri/renderD128（或 Dxxx）”的 Linux 内核中，drivers/gpu/vmxgfx/vmxgfx_kms.c 的 vmwgfx 驱动程序中发现越界 (OOB) 内存访问漏洞。在系统中具有用户帐户的本地攻击者可利用此缺陷获得特权，造成拒绝服务 (DoS)。CVE-2022-36280

  - 已修复 Linux 内核中的下列漏洞：ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS UBSAN complains about array-index-out-of-bounds: [ 1.980703] kernel: UBSAN: array-index-out-of-bounds in /build/linux-9H675w/linux-5.15.0/drivers/ata/libahci.c:968:41 [ 1.980709] kernel:
    index 15 is out of range for type 'ahci_em_priv [8]' [ 1.980713] kernel: CPU: 0 PID: 209 Comm: scsi_eh_8 Not tainted 5.15.0-25-generic #25-Ubuntu [ 1.980716] kernel: Hardware name: System manufacturer System Product Name/P5Q3, BIOS 1102 06/11/2010 [ 1.980718] kernel: Call Trace: [ 1.980721] kernel: <TASK> [1.980723] kernel: show_stack+0x52/0x58 [ 1.980729] kernel: dump_stack_lvl+0x4a/0x5f [ 1.980734] kernel:
    dump_stack+0x10/0x12 [ 1.980736] kernel: ubsan_epilogue+0x9/0x45 [ 1.980739] kernel:
    __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 1.980742] kernel: ahci_qc_issue+0x166/0x170 [libahci] [1.980748] kernel: ata_qc_issue+0x135/0x240 [ 1.980752] kernel: ata_exec_internal_sg+0x2c4/0x580 [1.980754] kernel: ? vprintk_default+0x1d/0x20 [ 1.980759] kernel: ata_exec_internal+0x67/0xa0 [ 1.980762] kernel: sata_pmp_read+0x8d/0xc0 [ 1.980765] kernel: sata_pmp_read_gscr+0x3c/0x90 [ 1.980768] kernel:
    sata_pmp_attach+0x8b/0x310 [ 1.980771] kernel: ata_eh_revalidate_and_attach+0x28c/0x4b0 [ 1.980775] kernel: ata_eh_recover+0x6b6/0xb30 [ 1.980778] kernel: ? ahci_do_hardreset+0x180/0x180 [libahci] [1.980783] kernel: ? ahci_stop_engine+0xb0/0xb0 [libahci] [ 1.980787] kernel: ? ahci_do_softreset+0x290/0x290 [libahci] [ 1.980792] kernel: ? trace_event_raw_event_ata_eh_link_autopsy_qc+0xe0/0xe0 [ 1.980795] kernel:
    sata_pmp_eh_recover.isra.0+0x214/0x560 [ 1.980799] kernel: sata_pmp_error_handler+0x23/0x40 [ 1.980802] kernel: ahci_error_handler+0x43/0x80 [libahci] [ 1.980806] kernel: ata_scsi_port_error_handler+0x2b1/0x600 [ 1.980810] kernel: ata_scsi_error+0x9c/0xd0 [ 1.980813] kernel: scsi_error_handler+0xa1/0x180 [ 1.980817] kernel: ? scsi_unjam_host+0x1c0/0x1c0 [ 1.980820] kernel: kthread+0x12a/0x150 [ 1.980823] kernel: ? set_kthread_struct+0x50/0x50 [ 1.980826] kernel: ret_from_fork+0x22/0x30 [ 1.980831] kernel: </TASK> This happens because sata_pmp_init_links() initialize link->pmp up to SATA_PMP_MAX_PORTS while em_priv is declared as 8 elements array. I can't find the maximum Enclosure Management ports specified in AHCI spec v1.3.1, but 12.2.1 LED message type states that Port Multiplier Information can utilize 4 bits, which implies it can support up to 16 ports. Hence, use SATA_PMP_MAX_PORTS as EM_MAX_SLOTS to resolve the issue.
    BugLink: https://bugs.launchpad.net/bugs/1970074 (CVE-2022-50315)

  - 已修复 Linux 内核中的下列漏洞：ACPICA: Fix error code path in acpi_ds_call_control_method() A use-after-free in acpi_ps_parse_aml() after a failing invocaion of acpi_ds_call_control_method() is reported by KASAN [1] and code inspection reveals that next_walk_state pushed to the thread by acpi_ds_create_walk_state() is freed on errors, but it is not popped from the thread beforehand. Thus acpi_ds_get_current_walk_state() called by acpi_ps_parse_aml() subsequently returns it as the new walk state which is incorrect. To address this, make acpi_ds_call_control_method() call acpi_ds_pop_walk_state() to pop next_walk_state from the thread before returning an error.
    (CVE-2022-50411)

  - 已修复 Linux 内核中的下列漏洞：Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times device_add shall not be called multiple times as stated in its documentation: 'Do not call this routine or device_register() more than once for any device structure' Syzkaller reports a bug as follows [1]: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:33! invalid opcode: 0000 [#1] PREEMPT SMP KASAN [...] Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 hci_event_func net/bluetooth/hci_event.c:7440 [inline] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> (CVE-2022-50419)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

CentOS Linux 7 主机上存在安装的程序包，该程序包受到 TuxCare CENTOS7：CLSA-2026：2026：1770040438 1 公告中提及的多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：cifs: fix oops during encryption When running xfstests against Azure the following oops occurred on an arm64 system Unable to handle kernel write to read-only memory at virtual address ffff0001221cf000 Mem abort info: ESR = 0x9600004f EC = 0x25:
    DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x0f: level 3 permission fault Data abort info: ISV = 0, ISS = 0x0000004f CM = 0, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000294f3000 [ffff0001221cf000] pgd=18000001ffff8003, p4d=18000001ffff8003, pud=18000001ff82e003, pmd=18000001ff71d003, pte=00600001221cf787 Internal error: Oops: 9600004f [#1] PREEMPT SMP ... pstate:
    80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--) pc : __memcpy+0x40/0x230 lr :
    scatterwalk_copychunks+0xe0/0x200 sp : ffff800014e92de0 x29: ffff800014e92de0 x28: ffff000114f9de80 x27:
    0000000000000008 x26: 0000000000000008 x25: ffff800014e92e78 x24: 0000000000000008 x23: 0000000000000001 x22: 0000040000000000 x21: ffff000000000000 x20: 0000000000000001 x19: ffff0001037c4488 x18:
    0000000000000014 x17: 235e1c0d6efa9661 x16: a435f9576b6edd6c x15: 0000000000000058 x14: 0000000000000001 x13: 0000000000000008 x12: ffff000114f2e590 x11: ffffffffffffffff x10: 0000040000000000 x9 :
    ffff8000105c3580 x8 : 2e9413b10000001a x7 : 534b4410fb86b005 x6 : 534b4410fb86b005 x5 : ffff0001221cf008 x4 : ffff0001037c4490 x3 : 0000000000000001 x2 : 0000000000000008 x1 : ffff0001037c4488 x0 :
    ffff0001221cf000 Call trace: __memcpy+0x40/0x230 scatterwalk_map_and_copy+0x98/0x100 crypto_ccm_encrypt+0x150/0x180 crypto_aead_encrypt+0x2c/0x40 crypt_message+0x750/0x880 smb3_init_transform_rq+0x298/0x340 smb_send_rqst.part.11+0xd8/0x180 smb_send_rqst+0x3c/0x100 compound_send_recv+0x534/0xbc0 smb2_query_info_compound+0x32c/0x440 smb2_set_ea+0x438/0x4c0 cifs_xattr_set+0x5d4/0x7c0 This is because in scatterwalk_copychunks(), we attempted to write to a buffer (@sign) that was allocated in the stack (vmalloc area) by crypt_message() and thus accessing its remaining 8 (x2) bytes ended up crossing a page boundary. To simply fix it, we could just pass @sign kmalloc'd from crypt_message() and then we're done. Luckily, we don't seem to pass any other vmalloc'd buffers in smb_rqst::rq_iov... Instead, let's map the correct pages and offsets from vmalloc buffers as well in cifs_sg_set_buf() and then avoiding such oopses. (CVE-2022-50341)

  - 已修复 Linux 内核中的下列漏洞：iomap: iomap: fix memory corruption when recording errors during writeback Every now and then I see this crash on arm64: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8 Buffer I/O error on dev dm-0, logical block 8733687, async page read Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 64k pages, 42-bit VAs, pgdp=0000000139750000 [00000000000000f8] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000, pmd=0000000000000000 Internal error: Oops: 96000006 [#1] PREEMPT SMP Buffer I/O error on dev dm-0, logical block 8733688, async page read Dumping ftrace buffer: Buffer I/O error on dev dm-0, logical block 8733689, async page read (ftrace buffer empty) XFS (dm-0): log I/O error -5 Modules linked in: dm_thin_pool dm_persistent_data XFS (dm-0): Metadata I/O Error (0x1) detected at xfs_trans_read_buf_map+0x1ec/0x590 [xfs] (fs/xfs/xfs_trans_buf.c:296). dm_bio_prison XFS (dm-0): Please unmount the filesystem and rectify the problem(s) XFS (dm-0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -5, agno 0 dm_bufio dm_log_writes xfs nft_chain_nat xt_REDIRECT nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT potentially unexpected fatal signal 6. nf_reject_ipv6 potentially unexpected fatal signal 6. ipt_REJECT nf_reject_ipv4 CPU: 1 PID: 122166 Comm: fsstress Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7 rpcsec_gss_krb5 auth_rpcgss xt_tcpudp ip_set_hash_ip ip_set_hash_net xt_set nft_compat ip_set_hash_mac ip_set nf_tables Hardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021 pstate: 60001000 (nZCv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--) ip_tables pc : 000003fd6d7df200 x_tables lr : 000003fd6d7df1ec overlay nfsv4 CPU: 0 PID: 54031 Comm: u4:3 Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7405 Hardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021 Workqueue: writeback wb_workfn sp : 000003ffd9522fd0 (flush-253:0) pstate: 60401005 (nZCv daif +PAN -UAO
    -TCO -DIT +SSBS BTYPE=--) pc : errseq_set+0x1c/0x100 x29: 000003ffd9522fd0 x28: 0000000000000023 x27:
    000002acefeb6780 x26: 0000000000000005 x25: 0000000000000001 x24: 0000000000000000 x23: 00000000ffffffff x22: 0000000000000005 lr : __filemap_set_wb_err+0x24/0xe0 x21: 0000000000000006 sp : fffffe000f80f760 x29:
    fffffe000f80f760 x28: 0000000000000003 x27: fffffe000f80f9f8 x26: 0000000002523000 x25: 00000000fffffffb x24: fffffe000f80f868 x23: fffffe000f80fbb0 x22: fffffc0180c26a78 x21: 0000000002530000 x20:
    0000000000000000 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000470af3 x12: fffffc0058f70000 x11:
    0000000000000040 x10: 0000000000001b20 x9 : fffffe000836b288 x8 : fffffc00eb9fd480 x7 : 0000000000f83659 x6 : 0000000000000000 x5 : 0000000000000869 x4 : 0000000000000005 x3 : 00000000000000f8 x20:
    000003fd6d740020 x19: 000000000001dd36 x18: 0000000000000001 x17: 000003fd6d78704c x16: 0000000000000001 x15: 000002acfac87668 x2 : 0000000000000ffa x1 : 00000000fffffffb x0 : 00000000000000f8 Call trace:
    errseq_set+0x1c/0x100 __filemap_set_wb_err+0x24/0xe0 iomap_do_writepage+0x5e4/0xd5c write_cache_pages+0x208/0x674 iomap_writepages+0x34/0x60 xfs_vm_writepages+0x8c/0xcc [xfs 7a861f39c43631f15d3a5884246ba5035d4ca78b] x14: 0000000000000000 x13: 2064656e72757465 x12:
    0000000000002180 x11: 000003fd6d8a82d0 x10: 0000000000000000 x9 : 000003fd6d8ae288 x8 : 0000000000000083 x7 : 00000000ffffffff x6 : 00000000ffffffee x5 : 00000000fbad2887 x4 : 000003fd6d9abb58 x3 :
    000003fd6d740020 x2 : 0000000000000006 x1 : 000000000001dd36 x0 : 0000000000000000 CPU: ---truncated--- (CVE-2022-50406)

  - 已修复 Linux 内核中的下列漏洞：Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times device_add shall not be called multiple times as stated in its documentation: 'Do not call this routine or device_register() more than once for any device structure' Syzkaller reports a bug as follows [1]: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:33! invalid opcode: 0000 [#1] PREEMPT SMP KASAN [...] Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 hci_event_func net/bluetooth/hci_event.c:7440 [inline] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> (CVE-2022-50419)

  - 已修复 Linux 内核中的下列漏洞：scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() When executing SMP task failed, the smp_execute_task_sg() calls del_timer() to delete slow_task->timer. However, if the timer handler sas_task_internal_timedout() is running, the del_timer() in smp_execute_task_sg() will not stop it and a UAF will happen. The process is shown below:
    (thread 1) | (thread 2) smp_execute_task_sg() | sas_task_internal_timedout() ... | del_timer() | ... | ...
    sas_free_task(task) | kfree(task->slow_task) //FREE| | task->slow_task->... //USE Fix by calling del_timer_sync() in smp_execute_task_sg(), which makes sure the timer handler have finished before the task->slow_task is deallocated. (CVE-2022-50422)

  - 已修复 Linux 内核中的下列漏洞：scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write During the sysfs firmware write process, a use-after-free read warning is logged from the lpfc_wr_object() routine: BUG: KFENCE: use-after-free read in lpfc_wr_object+0x235/0x310 [lpfc] Use-after-free read at 0x0000000000cf164d (in kfence-#111):
    lpfc_wr_object+0x235/0x310 [lpfc] lpfc_write_firmware.cold+0x206/0x30d [lpfc] lpfc_sli4_request_firmware_update+0xa6/0x100 [lpfc] lpfc_request_firmware_upgrade_store+0x66/0xb0 [lpfc] kernfs_fop_write_iter+0x121/0x1b0 new_sync_write+0x11c/0x1b0 vfs_write+0x1ef/0x280 ksys_write+0x5f/0xe0 do_syscall_64+0x59/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The driver accessed wr_object pointer data, which was initialized into mailbox payload memory, after the mailbox object was released back to the mailbox pool. Fix by moving the mailbox free calls to the end of the routine ensuring that we don't reference internal mailbox memory after release. (CVE-2023-53282)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - Bluetoothhci_sysfs修复多次调用 device_add 的尝试 device_add 不应被调用多次如其文档中所述“任何设备结构的调用此例程或 device_register() 次数均不超过一次” Syzkaller 报告一个缺陷如下 [ 1]: ------------[在此剪切]------------ 位于 lib/list_debug.c:33! 的内核缺陷无效 opcode0000 [#1] PREEMPT SMP KASAN [...] 调用跟踪 <TASK> __list_add include/linux/list.h:69 [inline] list_add_tail include/linux/list.h:102 [inline] kobj_kset_join lib/ kobject.c:164 [inline] kobject_add_internal+0x18f/0x8f0 lib/kobject.c:214 kobject_add_varg lib/kobject.c:358 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:410 device_add+0x368/0x1e90 drivers/ base/core.c:3452 hci_conn_add_sysfs+0x9b/0x1b0 net/bluetooth/hci_sysfs.c:53 hci_le_cis_estabilished_evt+0x57c/0xae0 net/bluetooth/hci_event.c:6799 hci_le_meta_evt+0x2b8/0x510 net/bluetooth/hci_event.c:7110 net/bluetooth/hci_event.c:7440 [内联] hci_event_packet+0x63d/0xfd0 net/bluetooth/hci_event.c:7495 hci_rx_work+0xae7/0x1230 net/bluetooth/hci_core.c:4007 process_one_work+0x991/0x1610 kernel/workqueue.c :2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> (CVE-2022-50419)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

如 TuxCare CENTOS6：CLSA-2026：1768669128公告所述，CentOS Linux 6 主机上存在安装的程序包，该漏洞会受到多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：scsi: target: Fix WRITE_SAME No Data Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer that gets written out. If this bit is set using commands like sg_write_same --ndob we will crash in target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal WRITE SAME with no data buffer. (CVE-2022-21546)

  - Linux PV 设备前端容易受到后端攻击 [此 CNA 信息记录与多个 CVE 相关；文本说明了哪些方面/漏洞对应于哪些 CVE]。多个 Linux PV 设备前端正在以受争用条件约束的方式使用授予的桌面接口删除后端的访问权限，从而导致潜在的数据泄漏、恶意后端造成的数据损坏以及恶意后端触发的拒绝服务攻击：blkfront、netfront、scsifront 和 gntalloc 驱动程序正在测试授权引用是否仍在使用中。如果未正在使用，它们假设后续的授权访问删除将始终成功，但如果后端已在这两个操作之间映射授权页面，则情况并非如此。因此，无论前端 I/O 完成后如何使用页面，后端都可以始终访问客户机内存页面。
    xenbus 驱动程序存在类似的问题，因为它不检查是否成功删除了对共享环形缓冲区的访问权限。blkfront：CVE-2022-23036 netfront：CVE-2022-23037 scsifront：CVE-2022-23038 gntalloc：CVE-2022-23039 xenbus：CVE-2022-23040  blkfront、netfront、scsifront、usbfront、dmabuf、xenbus、9p、kbdfront 和 pvcalls 正在使用一种功能将释放授权引用延迟到不再使用，但相关数据页的释放未与放置授予访问权限同步。因此，即使在内存页面被释放并重新用于其他目的之后，后端仍可继续访问该页面。  如果 CVE-2022-23041 netfront 撤消 rx 路径中的访问权限失败，则 BUG_ON() 断言会失败。这将导致客户机发生可由后端触发的拒绝服务 (DoS) 情况。CVE-2022-23042 (CVE-2022-23042)

  - 在用户触发 security_inode_alloc 函数失败并随后调用 nilfs_mdt_destroy 函数的方式中，发现 Linux 内核的 NILFS 文件系统中存在释放后使用缺陷。本地攻击者可利用此缺陷造成系统崩溃，或可能提升其在系统中的权限。(CVE-2022-2978)

  - 低于 5.19.17 和 6.0.2 版的 Linux 内核 NFSD 实现容易受到缓冲区溢出的影响。NFSD 通过将远程过程调用 (RPC) 的接收和发送缓冲区合并到一个页面数组中，来跟踪每个 NFSD 线程占用的页面数量。客户端可以通过在消息末尾添加垃圾数据的 TCP 发送 RPC 消息来强制缩小发送缓冲区。系统仍会根据规范正确形成包含垃圾数据的 RPC 消息，并将其传递给处理程序。NFSD 中的漏洞代码未预期超出分配的缓冲区空间的超大请求和写入。CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (CVE-2022-43945)

  - 已修复 Linux 内核中的下列漏洞：capabilities: fix undefined behavior in bit shift for CAP_TO_MASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace:
    <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e
    __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c cap_task_prctl+0x561/0x6f0 security_task_prctl+0x5a/0xb0
    __x64_sys_prctl+0x61/0x8f0 do_syscall_64+0x58/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK> (CVE-2022-49870)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

AlmaLinux 9.2 主机上存在安装的程序包，该程序包受到 TuxCare ALMALINUX9.2：CLSA-2026：1777616064公告中提及的多个漏洞的影响。

  - 已修复 Linux 内核中的下列漏洞：tracing: Fix potential double free in create_var_ref() In create_var_ref(), init_var_ref() is called to initialize the fields of variable ref_field, which is allocated in the previous function call to create_hist_field(). Function init_var_ref() allocates the corresponding fields such as ref_field->system, but frees these fields when the function encounters an error. The caller later calls destroy_hist_field() to conduct error handling, which frees the fields and the variable itself. This results in double free of the fields which are already freed in the previous function. Fix this by storing NULL to the corresponding fields when they are freed in init_var_ref(). (CVE-2022-49410)

  - 已修复 Linux 内核中的下列漏洞：net: mdio: fix undefined behavior in bit shift for __mdiobus_register Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in drivers/net/phy/mdio_bus.c:586:27 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e
    __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c __mdiobus_register+0x49d/0x4e0 fixed_mdio_bus_init+0xd8/0x12d do_one_initcall+0x76/0x430 kernel_init_freeable+0x3b3/0x422 kernel_init+0x24/0x1e0 ret_from_fork+0x1f/0x30 </TASK> (CVE-2022-49907)

  - 已修复 Linux 内核中的下列漏洞：vt: Clear selection before changing the font When changing the console font with ioctl(KDFONTOP) the new font size can be bigger than the previous font. A previous selection may thus now be outside of the new screen size and thus trigger out-of-bounds accesses to graphics memory if the selection is removed in vc_do_resize(). Prevent such out-of-memory accesses by dropping the selection before the various con_font_set() console handlers are called.
    (CVE-2022-49948)

  - 已修复 Linux 内核中的下列漏洞：wifi: iwlwifi: mvm: fix double free on tx path. We see kernel crashes and lockups and KASAN errors related to ax210 firmware crashes. One of the KASAN dumps pointed at the tx path, and it appears there is indeed a way to double-free an skb. If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the method will be freed. But, in case where we build TSO skb buffer, the skb may also be freed in error case. So, return 0 in that particular error case and do cleanup manually. BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90 iwlwifi 0000:06:00.0: 0x00000000 | tsf hi Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650 CPU: 4 PID: 9650 Comm: btserver Tainted: G W 5.19.8+ #5 iwlwifi 0000:06:00.0: 0x00000000 | time gp1 Hardware name: Default string Default string/SKYBAY, BIOS 5.12 02/19/2019 Call Trace: <TASK> dump_stack_lvl+0x55/0x6d print_report.cold.12+0xf2/0x684 iwlwifi 0000:06:00.0: 0x1D0915A8 | time gp2 ?
    __list_del_entry_valid+0x12/0x90 kasan_report+0x8b/0x180 iwlwifi 0000:06:00.0: 0x00000001 | uCode revision type ? __list_del_entry_valid+0x12/0x90 __list_del_entry_valid+0x12/0x90 iwlwifi 0000:06:00.0: 0x00000048 | uCode version major tcp_update_skb_after_send+0x5d/0x170 __tcp_transmit_skb+0xb61/0x15c0 iwlwifi 0000:06:00.0: 0xDAA05125 | uCode version minor ? __tcp_select_window+0x490/0x490 iwlwifi 0000:06:00.0:
    0x00000420 | hw version ? trace_kmalloc_node+0x29/0xd0 ? __kmalloc_node_track_caller+0x12a/0x260 ? memset+0x1f/0x40 ? __build_skb_around+0x125/0x150 ? __alloc_skb+0x1d4/0x220 ? skb_zerocopy_clone+0x55/0x230 iwlwifi 0000:06:00.0: 0x00489002 | board version ? kmalloc_reserve+0x80/0x80 ? rcu_read_lock_bh_held+0x60/0xb0 tcp_write_xmit+0x3f1/0x24d0 iwlwifi 0000:06:00.0: 0x034E001C | hcmd ?
    __check_object_size+0x180/0x350 iwlwifi 0000:06:00.0: 0x24020000 | isr0 tcp_sendmsg_locked+0x8a9/0x1520 iwlwifi 0000:06:00.0: 0x01400000 | isr1 ? tcp_sendpage+0x50/0x50 iwlwifi 0000:06:00.0: 0x48F0000A | isr2 ? lock_release+0xb9/0x400 ? tcp_sendmsg+0x14/0x40 iwlwifi 0000:06:00.0: 0x00C3080C | isr3 ? lock_downgrade+0x390/0x390 ? do_raw_spin_lock+0x114/0x1d0 iwlwifi 0000:06:00.0: 0x00200000 | isr4 ? rwlock_bug.part.2+0x50/0x50 iwlwifi 0000:06:00.0: 0x034A001C | last cmd Id ? rwlock_bug.part.2+0x50/0x50 ? lockdep_hardirqs_on_prepare+0xe/0x200 iwlwifi 0000:06:00.0: 0x0000C2F0 | wait_event ?
    __local_bh_enable_ip+0x87/0xe0 ? inet_send_prepare+0x220/0x220 iwlwifi 0000:06:00.0: 0x000000C4 | l2p_control tcp_sendmsg+0x22/0x40 sock_sendmsg+0x5f/0x70 iwlwifi 0000:06:00.0: 0x00010034 | l2p_duration
    __sys_sendto+0x19d/0x250 iwlwifi 0000:06:00.0: 0x00000007 | l2p_mhvalid ? __ia32_sys_getpeername+0x40/0x40 iwlwifi 0000:06:00.0: 0x00000000 | l2p_addr_match ? rcu_read_lock_held_common+0x12/0x50 ? rcu_read_lock_sched_held+0x5a/0xd0 ? rcu_read_lock_bh_held+0xb0/0xb0 ? rcu_read_lock_sched_held+0x5a/0xd0 ? rcu_read_lock_sched_held+0x5a/0xd0 ? lock_release+0xb9/0x400 ? lock_downgrade+0x390/0x390 ? ktime_get+0x64/0x130 ? ktime_get+0x8d/0x130 ? rcu_read_lock_held_common+0x12/0x50 ? rcu_read_lock_sched_held+0x5a/0xd0 ? rcu_read_lock_held_common+0x12/0x50 ? rcu_read_lock_sched_held+0x5a/0xd0 ? rcu_read_lock_bh_held+0xb0/0xb0 ? rcu_read_lock_bh_held+0xb0/0xb0
    __x64_sys_sendto+0x6f/0x80 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP:
    0033:0x7f1d126e4531 Code: 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 48 8d 05 35 80 0c 00 41 89 ca 8b 00 85 c0 75 1c 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 67 c3 66 0f 1f 44 00 00 55 48 83 ec 20 48 89 RSP: 002b:00007ffe21a679d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX:
    000000000000ffdc RCX: 00007f1d126e4531 RDX: 0000000000010000 RSI: 000000000374acf0 RDI: 0000000000000014 RBP: 00007ffe21a67ac0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11:
    0000000000000246 R ---truncated--- (CVE-2022-50248)

  - 已修复 Linux 内核中的下列漏洞：mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and calling mmc_free_host() in the error path, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.
    (CVE-2022-50347)

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
168366	Amazon Linux 2内核 --advisory ALAS2-2022-1876 (ALAS-2022-1876)	Nessus	Amazon Linux Local Security Checks	2022/12/2	2026/2/9	high
353189	CentOS Linux 8.5 [TuxCare] 安全更新：bpftool / kernel / kernel-core / kernel-cross-headers / 等多个漏洞（CENTOS8.5：CLSA-2026：1768775579）	Nessus	CentOS Local Security Checks	2026/9/30	2026/10/1	high
359997	CentOS Linux 8.4 [TuxCare] 安全更新：bpftool / kernel / kernel-core / kernel-cross-headers / 等多个漏洞（CENTOS8.4：CLSA-2026：1768774361）	Nessus	CentOS Local Security Checks	2026/10/1	2026/10/2	high
360828	CentOS Linux 7 [TuxCare] 安全更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / 等多个漏洞（CENTOS7：CLSA-2026：1770040438）	Nessus	CentOS Local Security Checks	2026/10/1	2026/10/1	high
265508	Linux Distros 未修补的漏洞：CVE-2022-50419	Nessus	Misc.	2025/9/19	2026/9/30	high
352899	CentOS Linux 6 [TuxCare] 安全更新：kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / 等多个漏洞（CENTOS6：CLSA-2026：1768669128）	Nessus	CentOS Local Security Checks	2026/9/30	2026/9/30	high
353159	AlmaLinux 9.2 [TuxCare] 安全更新：bpftool / kernel / kernel-abi-stablelists / kernel-core / 等多个漏洞（ALMALINUX9.2：CLSA-2026：1777616064）	Nessus	Alma Linux Local Security Checks	2026/9/30	2026/10/1	high

检测

插件搜索

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