🛡️ CVE-2024-53215 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

svcrdma: fix miss destroy percpu_counter in svc_rdma_proc_init()

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

svcrdma: fix miss destroy percpu_counter in svc_rdma_proc_init()

There's issue as follows:

RPC: Registered rdma transport module.

RPC: Registered rdma backchannel transport module.

RPC: Unregistered rdma transport module.

RPC: Unregistered rdma backchannel transport module.

BUG: unable to handle page fault for address: fffffbfff80c609a

PGD 123fee067 P4D 123fee067 PUD 123fea067 PMD 10c624067 PTE 0

Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI

RIP: 0010:percpu_counter_destroy_many+0xf7/0x2a0

Call Trace:

<TASK>

__die+0x1f/0x70

page_fault_oops+0x2cd/0x860

spurious_kernel_fault+0x36/0x450

do_kern_addr_fault+0xca/0x100

exc_page_fault+0x128/0x150

asm_exc_page_fault+0x26/0x30

percpu_counter_destroy_many+0xf7/0x2a0

mmdrop+0x209/0x350

finish_task_switch.isra.0+0x481/0x840

schedule_tail+0xe/0xd0

ret_from_fork+0x23/0x80

ret_from_fork_asm+0x1a/0x30

</TASK>

If register_sysctl() return NULL, then svc_rdma_proc_cleanup() will not

destroy the percpu counters which init in svc_rdma_proc_init().

If CONFIG_HOTPLUG_CPU is enabled, residual nodes may be in the

'percpu_counters' list. The above issue may occur once the module is

removed. If the CONFIG_HOTPLUG_CPU configuration is not enabled, memory

leakage occurs.

To solve above issue just destroy all percpu counters when

register_sysctl() return NULL.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2024-53215 is recorded against 2 packages.

  • kernel (from 6.12.0 up to 6.12.2)
  • linux-kernel (from 6.12 up to 6.12.2)

Timeline and source

Published on 27 December 2024 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
lists.debian.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2024-53215 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-12-27
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 6.12.0 6.12.2
linux-kernel 6.12 6.12.2

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