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CVE-2026-45871— tpm: st33zp24: Fix missing cleanup on get_burstcount() error

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st33zp24 TPM驱动中get_burstcount()返回错误时未释放已获取的局部性，导致资源泄漏。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux bf38b8710892333cec2d8069644eb36ff435fd6f< e0ce3da82341fcd6194175f1837946b2a894c625 affected
bf38b8710892333cec2d8069644eb36ff435fd6f< 7687133509cf66ced120b667fefd21f80bf17993 affected
bf38b8710892333cec2d8069644eb36ff435fd6f< 1256c6dc96d1e687e6e9b63088156ed07411b00c affected
bf38b8710892333cec2d8069644eb36ff435fd6f< a51cff9be046e13e1c1b2fe45d5c48b582ec9b8c affected
bf38b8710892333cec2d8069644eb36ff435fd6f< cc09d55f519e15355de343264a22ac6682b8305e affected
bf38b8710892333cec2d8069644eb36ff435fd6f< ec15eb67fe9df87981b4829b901ec254273ca483 affected
bf38b8710892333cec2d8069644eb36ff435fd6f< 4fffb77d35d038f146e6192da583dbe4971d869e affected
bf38b8710892333cec2d8069644eb36ff435fd6f< 3e91b44c93ad2871f89fc2a98c5e4fe6ca5db3d9 affected
… +10 more rows
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I. Basic Information for CVE-2026-45871

Vulnerability Information
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Vulnerability Title
tpm: st33zp24: Fix missing cleanup on get_burstcount() error
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tpm: st33zp24: Fix missing cleanup on get_burstcount() error get_burstcount() can return -EBUSY on timeout. When this happens, st33zp24_send() returns directly without releasing the locality acquired earlier. Use goto out_err to ensure proper cleanup when get_burstcount() fails.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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st33zp24 TPM驱动中get_burstcount()返回错误时未释放已获取的局部性，导致资源泄漏。
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 bf38b8710892333cec2d8069644eb36ff435fd6f ~ e0ce3da82341fcd6194175f1837946b2a894c625 -
Linux Linux 4.1 -

II. Public POCs for CVE-2026-45871

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III. Intelligence Information for CVE-2026-45871

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Patches & Fixes for CVE-2026-45871 (8)

Same Patch Batch · Linux · 2026-05-27 · 275 CVEs total

CVE-2026-46039 9.8 CRITICAL rxgk: Fix potential integer overflow in length check
CVE-2026-45898 9.8 CRITICAL RDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-45972 9.8 CRITICAL smb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-45988 9.8 CRITICAL rxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-46043 9.1 CRITICAL RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-45945 8.8 HIGH iommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-46056 8.8 HIGH Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2025-71311 8.2 HIGH fs/ntfs3: Initialize new folios before use
CVE-2026-46037 8.2 HIGH ipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-45843 8.2 HIGH slip: bound decode() reads against the compressed packet length
CVE-2026-46010 8.1 HIGH rxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-46099 8.1 HIGH net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-46076 7.9 HIGH KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-45910 7.8 HIGH RDMA/rxe: Fix race condition in QP timer handlers
CVE-2026-45862 7.8 HIGH iommu/vt-d: Flush cache for PASID table before using it
CVE-2026-45956 7.8 HIGH drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
CVE-2026-46036 7.8 HIGH vfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex
CVE-2026-46100 7.8 HIGH fs: afs: revert mmap_prepare() change
CVE-2026-45894 7.8 HIGH iommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-45933 7.8 HIGH bpf: Preserve id of register in sync_linked_regs()

Showing top 20 of 275 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45871

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