CVE-2021-47198

Updated: 2025-01-10 20:33:35.299669

Description:

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine An error is detected with the following report when unloading the driver: "KASAN: use-after-free in lpfc_unreg_rpi+0x1b1b" The NLP_REG_LOGIN_SEND nlp_flag is set in lpfc_reg_fab_ctrl_node(), but the flag is not cleared upon completion of the login. This allows a second call to lpfc_unreg_rpi() to proceed with nlp_rpi set to LPFC_RPI_ALLOW_ERROR. This results in a use after free access when used as an rpi_ids array index. Fix by clearing the NLP_REG_LOGIN_SEND nlp_flag in lpfc_mbx_cmpl_fc_reg_login().


Links NIST CIRCL RHEL Ubuntu

Severity

Severity Score
CVSS Version 2.x 0
CVSS Version 3.x HIGH 7.8

Status

OS name Project name Version Score Severity Status Errata Last updated

Statement

AlmaLinux 9.2 ESU kernel 5.14.0 7.8 HIGH Already Fixed 2024-04-22 10:00:48
CentOS 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2024-07-01 10:13:11
CentOS 7 ELS kernel 3.10.0 7.8 HIGH Not Vulnerable 2024-07-01 10:13:08
CentOS 8.4 ELS kernel 4.18.0 7.8 HIGH Not Vulnerable 2024-05-05 09:59:02
CentOS 8.5 ELS kernel 4.18.0 7.8 HIGH Released CLSA-2024:1715951065 2024-05-17 10:12:43
CloudLinux 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2024-07-01 10:13:11
Oracle Linux 6 ELS kernel 2.6.32 7.8 HIGH Not Vulnerable 2024-07-01 10:13:08
Ubuntu 16.04 ELS linux-hwe 4.15.0 7.8 HIGH Released CLSA-2024:1714065365 2024-04-25 21:41:39
Ubuntu 16.04 ELS linux 4.4.0 7.8 HIGH Released CLSA-2024:1714073393 2024-04-25 21:41:32
Ubuntu 18.04 ELS linux 4.15.0 7.8 HIGH Released CLSA-2024:1714065005 2024-04-25 21:41:33