scsi：lpfc：处理 lpfc_get_sfp_info 中的邮箱超时（CVE-2024-46842）
CVE编号
CVE-2024-46842利用情况
暂无补丁情况
N/A披露时间
2024-09-27漏洞描述
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Handle mailbox timeouts in lpfc_get_sfp_info The MBX_TIMEOUT return code is not handled in lpfc_get_sfp_info and the routine unconditionally frees submitted mailbox commands regardless of return status. The issue is that for MBX_TIMEOUT cases, when firmware returns SFP information at a later time, that same mailbox memory region references previously freed memory in its cmpl routine. Fix by adding checks for the MBX_TIMEOUT return code. During mailbox resource cleanup, check the mbox flag to make sure that the wait did not timeout. If the MBOX_WAKE flag is not set, then do not free the resources because it will be freed when firmware completes the mailbox at a later time in its cmpl routine. Also, increase the timeout from 30 to 60 seconds to accommodate boot scripts requiring longer timeouts.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
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| https://git.kernel.org/stable/c/bba47fe3b038cca3d3ebd799665ce69d6d273b58 | |
| https://git.kernel.org/stable/c/ede596b1434b57c0b3fd5c02b326efe5c54f6e48 |
- 攻击路径 N/A
- 攻击复杂度 N/A
- 权限要求 N/A
- 影响范围 N/A
- 用户交互 N/A
- 可用性 N/A
- 保密性 N/A
- 完整性 N/A
| CWE-ID | 漏洞类型 |
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