Bug 2350400 (CVE-2025-21829) - CVE-2025-21829 kernel: RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
Summary: CVE-2025-21829 kernel: RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [...
Keywords:
Status: NEW
Alias: CVE-2025-21829
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-03-06 17:01 UTC by OSIDB Bzimport
Modified: 2025-03-26 08:37 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2025-03-06 17:01:52 UTC
In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"

The Call Trace is as below:
"
  <TASK>
  ? show_regs.cold+0x1a/0x1f
  ? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
  ? __warn+0x84/0xd0
  ? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
  ? report_bug+0x105/0x180
  ? handle_bug+0x46/0x80
  ? exc_invalid_op+0x19/0x70
  ? asm_exc_invalid_op+0x1b/0x20
  ? __rxe_cleanup+0x12c/0x170 [rdma_rxe]
  ? __rxe_cleanup+0x124/0x170 [rdma_rxe]
  rxe_destroy_qp.cold+0x24/0x29 [rdma_rxe]
  ib_destroy_qp_user+0x118/0x190 [ib_core]
  rdma_destroy_qp.cold+0x43/0x5e [rdma_cm]
  rtrs_cq_qp_destroy.cold+0x1d/0x2b [rtrs_core]
  rtrs_srv_close_work.cold+0x1b/0x31 [rtrs_server]
  process_one_work+0x21d/0x3f0
  worker_thread+0x4a/0x3c0
  ? process_one_work+0x3f0/0x3f0
  kthread+0xf0/0x120
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x22/0x30
  </TASK>
"
When too many rdma resources are allocated, rxe needs more time to
handle these rdma resources. Sometimes with the current timeout, rxe
can not release the rdma resources correctly.

Compared with other rdma drivers, a bigger timeout is used.

Comment 1 Mauro Matteo Cascella 2025-03-06 18:45:38 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025030611-CVE-2025-21829-50f9@gregkh/T


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