CVE-2024-47143

MEDIUM EPSS 6.7%
Published Jan 11, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jan 11, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: dma-debug: fix a possible deadlock on radix_lock radix_lock() shouldn't be held while holding dma_hash_entry[idx].lock otherwise, there's a possible deadlock scenario when dma debug API is called holding rq_lock(): CPU0 CPU1 CPU2 dma_free_attrs() check_unmap() add_dma_entry() __schedule() //out (A) rq_lock() get_hash_bucket() (A) dma_entry_hash check_sync() (A) radix_lock() (W) dma_entry_hash dma_entry_free() (W) radix_lock() // CPU2's one (W) rq_lock() CPU1 situation can happen when it extending radix tree and it tries to wake up kswapd via wake_all_kswapd(). CPU2 situation can happen while perf_event_task_sched_out() (i.e. dma sync operation is called while deleting perf_event using etm and etr tmc which are Arm Coresight hwtracing driver backends). To remove this possible situation, call dma_entry_free() after put_hash_bucket() in check_unmap().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
6.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel* <5.10.231
linuxlinux_kernel*≥5.11  –  <5.15.174
linuxlinux_kernel*≥5.16  –  <6.1.120
linuxlinux_kernel*≥6.2  –  <6.6.66
linuxlinux_kernel*≥6.7  –  <6.12.5

References 8

  • git.kernel.org https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3ccce34a5c3f5c9541108a451657ade621524b32
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7543c3e3b9b88212fcd0aaf5cab5588797bdc7de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1b4fea8d62285f5e1a8194889b39661608bd8a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c212d91070beca0d03fef7bf988baf4ff4b3eee4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/efe1b9bbf356357fdff0399af361133d6e3ba18e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f2b95248a16c5186d1c658fc0aeb2f3bd95e5259
    Patch