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。

检测

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）

high Nessus 插件 ID 353189

版本 1.4

检测

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）

high Nessus 插件 ID 353189

版本 1.4

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）