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CVE-2023-54309— tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation

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workqueue初始化顺序不当，可能导致内存损坏。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.21% · P11

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 6f99612e250041a2402d3b1694bccb149cd424a4< 509d21f1c4bb9d35d397fca3226165b156a7639f affected
6f99612e250041a2402d3b1694bccb149cd424a4< 04e8697d26613ccea760cf57eb20a5a27f788c0f affected
6f99612e250041a2402d3b1694bccb149cd424a4< 86b9820395f226b8f33cbae9599deebf8af1ce72 affected
6f99612e250041a2402d3b1694bccb149cd424a4< 9ff7fcb3a2ed0e9b895bb5b4c13872d584a8815b affected
6f99612e250041a2402d3b1694bccb149cd424a4< e08295290c53a3cf174c236721747a01b9550ae2 affected
6f99612e250041a2402d3b1694bccb149cd424a4< 99b998fb9d7d2d2d9dbb3e19db2d0ade02f5a604 affected
6f99612e250041a2402d3b1694bccb149cd424a4< 092db954e2c3c5ba6c0ce990c7da72cf8f3b9c51 affected
6f99612e250041a2402d3b1694bccb149cd424a4< f4032d615f90970d6c3ac1d9c0bce3351eb4445c affected
… +10 more rows
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I. Basic Information for CVE-2023-54309

Vulnerability Information
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Vulnerability Title
tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tpm: tpm_vtpm_proxy: fix a race condition in /dev/vtpmx creation /dev/vtpmx is made visible before 'workqueue' is initialized, which can lead to a memory corruption in the worst case scenario. Address this by initializing 'workqueue' as the very first step of the driver initialization.
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workqueue初始化顺序不当，可能导致内存损坏。
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 6f99612e250041a2402d3b1694bccb149cd424a4 ~ 509d21f1c4bb9d35d397fca3226165b156a7639f -
Linux Linux 4.8 -

II. Public POCs for CVE-2023-54309

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III. Intelligence Information for CVE-2023-54309

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Other References for CVE-2023-54309 (8)

Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total

CVE-2023-54184 9.8 CRITICAL scsi: target: iscsit: Free cmds before session free
CVE-2023-54223 9.8 CRITICAL net/mlx5e: xsk: Fix invalid buffer access for legacy rq
CVE-2023-54237 9.8 CRITICAL net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link()
CVE-2023-54257 9.8 CRITICAL net: macb: fix a memory corruption in extended buffer descriptor mode
CVE-2023-54258 9.8 CRITICAL cifs: fix potential oops in cifs_oplock_break
CVE-2023-54269 9.8 CRITICAL SUNRPC: double free xprt_ctxt while still in use
CVE-2023-54280 9.8 CRITICAL cifs: fix potential race when tree connecting ipc
CVE-2023-54292 9.8 CRITICAL RDMA/irdma: Fix data race on CQP request done
CVE-2023-54203 9.1 CRITICAL ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr
CVE-2022-50880 8.8 HIGH wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
CVE-2023-54262 8.8 HIGH net/mlx5e: Don't clone flow post action attributes second time
CVE-2023-54214 8.8 HIGH Bluetooth: L2CAP: Fix potential user-after-free
CVE-2023-54162 8.8 HIGH ksmbd: fix possible memory leak in smb2_lock()
CVE-2023-54318 8.8 HIGH net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add
CVE-2023-54250 8.2 HIGH ksmbd: avoid out of bounds access in decode_preauth_ctxt()
CVE-2023-54164 8.0 HIGH Bluetooth: ISO: fix iso_conn related locking and validity issues
CVE-2023-54206 7.8 HIGH net/sched: flower: fix filter idr initialization
CVE-2023-54202 7.8 HIGH drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
CVE-2023-54210 7.8 HIGH Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
CVE-2023-54243 7.8 HIGH netfilter: ebtables: fix table blob use-after-free

Showing top 20 of 244 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-54309

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