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CVE-2022-50868— hwrng: amd - Fix PCI device refcount leak

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，该漏洞源于未正确释放PCI设备引用计数，可能导致内存泄漏。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1562.008

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 96d63c0297ccfd6d9059c614b3f5555d9441a2b3< f1c97f72ffd504f49882774e2ab689d982dc7afc affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< 526c316948819d3ecd2bb20fe5e2580c51a1b760 affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< e246f5eff26055bdcb61a2cc99c50af72a19680f affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< 1199f8e02941b326c60ab71a63002b7c80e38212 affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< 5998e5c30e839f73e62cb29e0d9617b0d16ccba3 affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< 2b79a5e560779b35e1164d57ae35c48b43373082 affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< cb348c7908631dd9f60083a0a1542eab055d3edf affected
96d63c0297ccfd6d9059c614b3f5555d9441a2b3< 2e10ecd012ae2b2a374b34f307e9bc1e6096c03d affected
… +12 more rows
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I. Basic Information for CVE-2022-50868

Vulnerability Information
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Vulnerability Title
hwrng: amd - Fix PCI device refcount leak
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwrng: amd - Fix PCI device refcount leak for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the normal and error path.
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，该漏洞源于未正确释放PCI设备引用计数，可能导致内存泄漏。
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 96d63c0297ccfd6d9059c614b3f5555d9441a2b3 ~ f1c97f72ffd504f49882774e2ab689d982dc7afc -
Linux Linux 2.6.18 -

II. Public POCs for CVE-2022-50868

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III. Intelligence Information for CVE-2022-50868

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Other References for CVE-2022-50868 (9)

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-2022-50868

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