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CVE-2023-53116— nvmet: avoid potential UAF in nvmet_req_complete()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于nvmet驱动在请求完成时存在潜在的释放后重用问题。

CVSS 9.8 · Critical EPSS 0.54% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a07b4970f464f13640e28e16dad6cfa33647cc99< e5d99b29012bbf0e86929403209723b2806500c1 affected
a07b4970f464f13640e28e16dad6cfa33647cc99< fafcb4b26393870c45462f9af6a48e581dbbcf7e affected
a07b4970f464f13640e28e16dad6cfa33647cc99< 04c394208831d5e0d5cfee46722eb0f033cd4083 affected
a07b4970f464f13640e28e16dad6cfa33647cc99< a6317235da8aa7cb97529ebc8121cc2a4c4c437a affected
a07b4970f464f13640e28e16dad6cfa33647cc99< f1d5888a5efe345b63c430b256e95acb0a475642 affected
a07b4970f464f13640e28e16dad6cfa33647cc99< bcd535f07c58342302a2cd2bdd8894fe0872c8a9 affected
a07b4970f464f13640e28e16dad6cfa33647cc99< 8ed9813871038b25a934b21ab76b5b7dbf44fc3a affected
a07b4970f464f13640e28e16dad6cfa33647cc99< 6173a77b7e9d3e202bdb9897b23f2a8afe7bf286 affected
… +10 more rows
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I. Basic Information for CVE-2023-53116

Vulnerability Information
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Vulnerability Title
nvmet: avoid potential UAF in nvmet_req_complete()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local variable to save the sq pointer before calling __nvmet_req_complete(), thus avoiding dereferencing the req pointer after that function call.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于nvmet驱动在请求完成时存在潜在的释放后重用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a07b4970f464f13640e28e16dad6cfa33647cc99 ~ e5d99b29012bbf0e86929403209723b2806500c1 -
Linux Linux 4.8 -

II. Public POCs for CVE-2023-53116

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III. Intelligence Information for CVE-2023-53116

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Patches & Fixes for CVE-2023-53116 (8)

Same Patch Batch · Linux · 2025-05-02 · 107 CVEs total

CVE-2023-53083 9.8 CRITICAL nfsd: don't replace page in rq_pages if it's a continuation of last page
CVE-2023-53086 8.8 HIGH wifi: mt76: connac: do not check WED status for non-mmio devices
CVE-2025-37798 7.8 HIGH codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
CVE-2023-53138 7.8 HIGH net: caif: Fix use-after-free in cfusbl_device_notify()
CVE-2023-53111 7.8 HIGH loop: Fix use-after-free issues
CVE-2023-53107 7.8 HIGH veth: Fix use after free in XDP_REDIRECT
CVE-2023-53102 7.8 HIGH ice: xsk: disable txq irq before flushing hw
CVE-2023-53100 7.8 HIGH ext4: fix WARNING in ext4_update_inline_data
CVE-2023-53094 7.8 HIGH tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53090 7.8 HIGH drm/amdkfd: Fix an illegal memory access
CVE-2023-53088 7.8 HIGH mptcp: fix UaF in listener shutdown
CVE-2023-53087 7.8 HIGH drm/i915/active: Fix misuse of non-idle barriers as fence trackers
CVE-2023-53084 7.8 HIGH drm/shmem-helper: Remove another errant put in error path
CVE-2023-53080 7.8 HIGH xsk: Add missing overflow check in xdp_umem_reg
CVE-2023-53072 7.8 HIGH mptcp: use the workqueue to destroy unaccepted sockets
CVE-2023-53065 7.8 HIGH perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
CVE-2023-53057 7.8 HIGH Bluetooth: HCI: Fix global-out-of-bounds
CVE-2023-53052 7.8 HIGH cifs: fix use-after-free bug in refresh_cache_worker()
CVE-2025-37797 7.8 HIGH net_sched: hfsc: Fix a UAF vulnerability in class handling
CVE-2023-53039 7.8 HIGH HID: intel-ish-hid: ipc: Fix potential use-after-free in work function

Showing top 20 of 107 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53116

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