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🛡️ CVE-2024-49569 — kernel

🟠 CVSS 7.5 — High ✅ No Known Exploit NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

nvme-rdma: unquiesce admin_q before destroy it

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

nvme-rdma: unquiesce admin_q before destroy it

Kernel will hang on destroy admin_q while we create ctrl failed, such

as following calltrace:

PID: 23644 TASK: ff2d52b40f439fc0 CPU: 2 COMMAND: "nvme"

#0 [ff61d23de260fb78] __schedule at ffffffff8323bc15

#1 [ff61d23de260fc08] schedule at ffffffff8323c014

#2 [ff61d23de260fc28] blk_mq_freeze_queue_wait at ffffffff82a3dba1

#3 [ff61d23de260fc78] blk_freeze_queue at ffffffff82a4113a

#4 [ff61d23de260fc90] blk_cleanup_queue at ffffffff82a33006

#5 [ff61d23de260fcb0] nvme_rdma_destroy_admin_queue at ffffffffc12686ce

#6 [ff61d23de260fcc8] nvme_rdma_setup_ctrl at ffffffffc1268ced

#7 [ff61d23de260fd28] nvme_rdma_create_ctrl at ffffffffc126919b

#8 [ff61d23de260fd68] nvmf_dev_write at ffffffffc024f362

#9 [ff61d23de260fe38] vfs_write at ffffffff827d5f25

RIP: 00007fda7891d574 RSP: 00007ffe2ef06958 RFLAGS: 00000202

RAX: ffffffffffffffda RBX: 000055e8122a4d90 RCX: 00007fda7891d574

RDX: 000000000000012b RSI: 000055e8122a4d90 RDI: 0000000000000004

RBP: 00007ffe2ef079c0 R8: 000000000000012b R9: 000055e8122a4d90

R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004

R13: 000055e8122923c0 R14: 000000000000012b R15: 00007fda78a54500

ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b

This due to we have quiesced admi_q before cancel requests, but forgot

to unquiesce before destroy it, as a result we fail to drain the

pending requests, and hang on blk_mq_freeze_queue_wait() forever. Here

try to reuse nvme_rdma_teardown_admin_queue() to fix this issue and

simplify the code.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no 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.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2024-49569 is recorded against 2 packages.

  • kernel (from 6.7.0 up to 6.12.5)
  • linux-kernel

Timeline and source

Published on 11 January 2025 and last revised on 12 August 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)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

Details

Severity High
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-01-11
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.7.0 6.12.5
linux-kernel — —

Similar Threats

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