Bug 2373354 (CVE-2025-38024)

Summary:	CVE-2025-38024 kernel: Linux kernel: RDMA/rxe use-after-free vulnerability leading to potential arbitrary code execution
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) subsystem, specifically within the `rxe` component. This use-after-free vulnerability occurs in the `rxe_create_cq` function. When the `rxe_cq_from_init` function fails, the subsequent call to `rxe_cleanup` attempts to free memory resources that have already been released, leading to memory corruption. A local attacker with high privileges could exploit this flaw to cause a denial of service or potentially achieve arbitrary code execution.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2025-06-18 10:03:17 UTC

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug

Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcf/0x610 mm/kasan/report.c:489
 kasan_report+0xb5/0xe0 mm/kasan/report.c:602
 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195
 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132
 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232
 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109
 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052
 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095
 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679
 vfs_write fs/read_write.c:677 [inline]
 vfs_write+0x26a/0xcc0 fs/read_write.c:659
 ksys_write+0x1b8/0x200 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

In the function rxe_create_cq, when rxe_cq_from_init fails, the function
rxe_cleanup will be called to handle the allocated resources. In fact,
some memory resources have already been freed in the function
rxe_cq_from_init. Thus, this problem will occur.

The solution is to let rxe_cleanup do all the work.

Comment 1 Avinash Hanwate 2025-06-20 19:24:47 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061847-CVE-2025-38024-2904@gregkh/T

Comment 4 errata-xmlrpc 2026-02-02 03:21:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:1661 https://access.redhat.com/errata/RHSA-2026:1661

Comment 5 errata-xmlrpc 2026-02-02 03:53:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:1662 https://access.redhat.com/errata/RHSA-2026:1662

Comment 7 errata-xmlrpc 2026-02-09 02:13:10 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:2212 https://access.redhat.com/errata/RHSA-2026:2212

Comment 8 errata-xmlrpc 2026-03-09 09:09:19 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:4011 https://access.redhat.com/errata/RHSA-2026:4011

Comment 10 errata-xmlrpc 2026-03-11 00:47:32 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2026:4246 https://access.redhat.com/errata/RHSA-2026:4246

Comment 11 errata-xmlrpc 2026-03-25 00:35:05 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:5691 https://access.redhat.com/errata/RHSA-2026:5691

Comment 12 errata-xmlrpc 2026-03-25 04:10:11 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2026:5727 https://access.redhat.com/errata/RHSA-2026:5727

Comment 13 errata-xmlrpc 2026-03-25 14:42:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:5821 https://access.redhat.com/errata/RHSA-2026:5821

Comment 14 errata-xmlrpc 2026-04-22 20:40:44 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:9870 https://access.redhat.com/errata/RHSA-2026:9870

Comment 16 errata-xmlrpc 2026-04-27 10:31:41 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:10756 https://access.redhat.com/errata/RHSA-2026:10756