Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2022-50520— drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()

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 4.3 Difficulty: Hard EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 28

VendorProduct Version RangeStatus
Linux Linux c61e2775873f603148e8e998a938721b7d222d24< 6f28c7f67af4ef9bca580ab67ae2d4511797af56 affected
c61e2775873f603148e8e998a938721b7d222d24< e738f82e5b1311e8fb3d1409491a6fcce6418fbe affected
c61e2775873f603148e8e998a938721b7d222d24< 1079df6acf56f99d86b0081a38c84701412cc90e affected
c61e2775873f603148e8e998a938721b7d222d24< 470a77989037c3ab2b08bf2d026d2c0ddc35ff5b affected
c61e2775873f603148e8e998a938721b7d222d24< 3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4 affected
c61e2775873f603148e8e998a938721b7d222d24< 88c6e0995c04b170563b5c894c50a3b2152e18c2 affected
c61e2775873f603148e8e998a938721b7d222d24< b9decada8749b606fd8b4f04a3d6c74f7983d7bc affected
c61e2775873f603148e8e998a938721b7d222d24< a6cffe54064a5f6c2162a85af3c16c6b453eac4e affected
… +20 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2022-50520

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
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 c61e2775873f603148e8e998a938721b7d222d24 ~ 6f28c7f67af4ef9bca580ab67ae2d4511797af56 -
Linux Linux 3.6 -

II. Public POCs for CVE-2022-50520

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2022-50520

请登录查看更多情报信息。

Patches & Fixes for CVE-2022-50520 (9)

Same Patch Batch · Linux · 2025-10-07 · 118 CVEs total

CVE-2023-53629 9.8 CRITICAL fs: dlm: fix use after free in midcomms commit
CVE-2023-53630 8.8 HIGH iommufd: Fix unpinning of pages when an access is present
CVE-2023-53676 8.8 HIGH scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()
CVE-2023-53675 8.8 HIGH scsi: ses: Fix possible desc_ptr out-of-bounds accesses
CVE-2023-53673 8.8 HIGH Bluetooth: hci_event: call disconnect callback before deleting conn
CVE-2023-53679 8.3 HIGH wifi: mt7601u: fix an integer underflow
CVE-2023-53635 8.2 HIGH netfilter: conntrack: fix wrong ct->timeout value
CVE-2023-53669 7.8 HIGH tcp: fix skb_copy_ubufs() vs BIG TCP
CVE-2022-50555 7.8 HIGH tipc: fix a null-ptr-deref in tipc_topsrv_accept
CVE-2023-53627 7.8 HIGH scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list
CVE-2023-53626 7.8 HIGH ext4: fix possible double unlock when moving a directory
CVE-2023-53660 7.8 HIGH bpf, cpumap: Handle skb as well when clean up ptr_ring
CVE-2023-53659 7.8 HIGH iavf: Fix out-of-bounds when setting channels on remove
CVE-2023-53643 7.8 HIGH nvme-tcp: don't access released socket during error recovery
CVE-2023-53619 7.8 HIGH netfilter: conntrack: Avoid nf_ct_helper_hash uses after free
CVE-2023-53645 7.8 HIGH bpf: Make bpf_refcount_acquire fallible for non-owning refs
CVE-2023-53646 7.8 HIGH drm/i915/perf: add sentinel to xehp_oa_b_counters
CVE-2022-50528 7.8 HIGH drm/amdkfd: Fix memory leakage
CVE-2022-50518 7.8 HIGH parisc: Fix locking in pdc_iodc_print() firmware call
CVE-2023-53651 7.8 HIGH Input: exc3000 - properly stop timer on shutdown

Showing top 20 of 118 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50520

No comments yet

Leave a comment