一、 漏洞 CVE-2022-49537 基础信息
漏洞标题
SCSI：LPFC：在启用CMF的I/O过程中修复调用跟踪问题
来源：AIGC 神龙大模型
漏洞描述信息
在Linux内核中，已修复以下漏洞： scsi: lpfc: 解决在启用CMF时进行I/O操作时观察到的调用跟踪问题 在启用CMF时，观察到以下问题： BUG：在可中断代码中使用smp_processor_id()：systemd-udevd/31711 内核：调用者是lpfc_update_cmf_cmd+0x214/0x420 [lpfc] 内核：CPU: 12 PID: 31711 进程名: systemd-udevd 内核：调用跟踪: 内核: <TASK> 内核: dump_stack_lvl+0x44/0x57 内核: check_preemption_disabled+0xbf/0xe0 内核: lpfc_update_cmf_cmd+0x214/0x420 [lpfc] 内核: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc] this_cpu_ptr()在可中断上下文中调用了smp_processor_id()。 修复方法是使用raw_smp_processor_id()和per_cpu_ptr()替代。
来源：AIGC 神龙大模型
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
来源：AIGC 神龙大模型
漏洞类别
信息暴露
来源：AIGC 神龙大模型
漏洞标题
scsi: lpfc: Fix call trace observed during I/O with CMF enabled
来源：美国国家漏洞数据库 NVD
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix call trace observed during I/O with CMF enabled The following was seen with CMF enabled: BUG: using smp_processor_id() in preemptible code: systemd-udevd/31711 kernel: caller is lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: CPU: 12 PID: 31711 Comm: systemd-udevd kernel: Call Trace: kernel: <TASK> kernel: dump_stack_lvl+0x44/0x57 kernel: check_preemption_disabled+0xbf/0xe0 kernel: lpfc_update_cmf_cmd+0x214/0x420 [lpfc] kernel: lpfc_nvme_fcp_io_submit+0x23b4/0x4df0 [lpfc] this_cpu_ptr() calls smp_processor_id() in a preemptible context. Fix by using per_cpu_ptr() with raw_smp_processor_id() instead.
来源：美国国家漏洞数据库 NVD
CVSS信息
N/A
来源：美国国家漏洞数据库 NVD
漏洞类别
N/A
来源：美国国家漏洞数据库 NVD
二、漏洞 CVE-2022-49537 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2022-49537 的情报信息

  • 标题： scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree

  • 标题： scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree

  • 标题： scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree

  • 标题： scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签：

    scsi: lpfc: Fix call trace observed during I/O with CMF enabled - kernel/git/stable/linux.git - Linux kernel stable tree
  • https://nvd.nist.gov/vuln/detail/CVE-2022-49537