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。

  - ASoCsoc-compress重新定位并添加 pcm_mutex如果已设置 panic_on_warn 并启动 compress stream(DPCM)则会发生内核错误这是因为未适当保留 card->pcm_mutex。在以下函数中此行发出警告 snd_soc_dpcm_mutex_assert_held。 static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe, struct snd_soc_pcm_runtime *be, int stream) { ...
    snd_soc_dpcm_mutex_assert_held(fe) ... } void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream) { ... snd_soc_dpcm_mutex_assert_held(fe); ... } void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd, int stream, int action) { ... snd_soc_dpcm_mutex_assert_held(rtd); ... } int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, int event) { ...
    snd_soc_dpcm_mutex_assert_held(fe) ... } 这些函数由 soc_compr_set_params_fe、soc_compr_open_fe 和 soc_compr_free_fe 调用而无 pcm_mutex 锁定。这是调用堆栈。 [ 414.527841][T2179] pcdpcm_process_paths+0x5a4/0x750 [ 414.527848][ T2179] lrdpcm_process_paths+0x37c/0x750 [414.527945][ T2179] 调用跟踪 [ 414.527949][ T2179] dpcm_process_paths +0x5a4/0x750 [ 414.527955][ T2179] soc_compr_open_fe+0xb0/0x2cc [ 414.527972][ T2179] snd_compr_open+0x180/0x248 [ 414.527981][ T2179] snd_open+0x15c/0x194 [ 414.528003][ T2179] chrdev_open+0x1b0/0x220 [ 414.528023][ T2179] do_dentry_open+0x30c/0x594 [ 414.528045][ T2179] vfs_open+0x34/0x44 [ 414.528053][ T2179] path_openat+0x914/0xb08 [ 414.528062][ T2179] do_filp_open+0xc0/0x170 [ 414.528068][ T2179] do_sys_openat2+0x94/0x18c [ 414.528076][ T2179] __arm64_sys_openat+0x78/0xa4 [ 414.528084][ T2179] invoke_syscall+0x48/0x10c [ 414.528094][ T2179] el0_svc_common+0xbc/0x104 [ 414.528099][ T2179] do_el0_svc+0x34/0xd8 [ 414.528103][ T2179] el0_svc+0x34/0xc4 [ 414.528125][ T2179] el0t_64_sync_handler+0x8c/0xfc [ 414.528133][ T2179] el0t_64_sync+0x1a0/0x1a4 [ 414.528142][ T2179] 内核错误 - 不同步panic_on_warn 设置 ... 因此，我重新定位并添加 pcm_mutex 以解决 lockdep 错误。
    (CVE-2023-53866)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2023-53866

medium Nessus 插件 ID 277830

版本 1.4