Описание
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
An issue was discovered in the Linux kernels Userspace Connection Manager Access for RDMA. This could allow a local attacker to crash the system, corrupt memory or escalate privileges.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-alt | Will not fix | ||
| Red Hat Enterprise Linux 9 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 Extended Lifecycle Support | kernel | Fixed | RHSA-2022:0157 | 18.01.2022 |
| Red Hat Enterprise Linux 7 | kernel-rt | Fixed | RHSA-2021:4779 | 23.11.2021 |
| Red Hat Enterprise Linux 7 | kernel | Fixed | RHSA-2021:4777 | 23.11.2021 |
| Red Hat Enterprise Linux 7 | kpatch-patch | Fixed | RHSA-2021:4798 | 23.11.2021 |
| Red Hat Enterprise Linux 7.2 Advanced Update Support | kernel | Fixed | RHSA-2021:4774 | 23.11.2021 |
| Red Hat Enterprise Linux 7.3 Advanced Update Support | kernel | Fixed | RHSA-2021:4768 | 23.11.2021 |
| Red Hat Enterprise Linux 7.4 Advanced Update Support | kernel | Fixed | RHSA-2021:4692 | 16.11.2021 |
| Red Hat Enterprise Linux 7.6 Advanced Update Support(Disable again in 2026 - SPRHEL-7118) | kernel | Fixed | RHSA-2021:4770 | 23.11.2021 |
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Дополнительная информация
Статус:
EPSS
7.8 High
CVSS3
Связанные уязвимости
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
An issue was discovered in the Linux kernel before 5.10. drivers/infin ...
An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.
ELSA-2021-4777: kernel security and bug fix update (IMPORTANT)
EPSS
7.8 High
CVSS3