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CVE-2024-39485— media: v4l: async: Properly re-initialise notifier entry in unregister

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，该漏洞源于在取消注册通知程序后，不会重新初始化通知程序的notifier_entry，从而导致悬空指针留在那里。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3< 87100b09246202a91fce4a1562955c32229173bb affected
b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3< 1aa6cd4adfc0380fa1ccc2f146848940ff882a66 affected
b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3< 9537a8425a7a0222999d5839a0b394b1e8834b4a affected
6.6 affected
< 6.6 unaffected
6.6.34≤ 6.6.* unaffected
6.9.5≤ 6.9.* unaffected
6.10≤ * unaffected
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I. Basic Information for CVE-2024-39485

Vulnerability Information
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Vulnerability Title
media: v4l: async: Properly re-initialise notifier entry in unregister
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: v4l: async: Properly re-initialise notifier entry in unregister The notifier_entry of a notifier is not re-initialised after unregistering the notifier. This leads to dangling pointers being left there so use list_del_init() to return the notifier_entry an empty list.
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，该漏洞源于在取消注册通知程序后，不会重新初始化通知程序的notifier_entry，从而导致悬空指针留在那里。
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 b8ec754ae4c563f6aab8c0cb47aeb2eae67f1da3 ~ 87100b09246202a91fce4a1562955c32229173bb -
Linux Linux 6.6 -

II. Public POCs for CVE-2024-39485

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III. Intelligence Information for CVE-2024-39485

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Other References for CVE-2024-39485 (3)

Same Patch Batch · Linux · 2024-07-05 · 14 CVEs total

CVE-2024-39480 8.4 HIGH kdb: Fix buffer overflow during tab-complete
CVE-2024-39482 7.8 HIGH bcache: fix variable length array abuse in btree_iter
CVE-2024-39481 7.8 HIGH media: mc: Fix graph walk in media_pipeline_start
CVE-2024-39479 7.8 HIGH drm/i915/hwmon: Get rid of devm
CVE-2024-39478 7.8 HIGH crypto: starfive - Do not free stack buffer
CVE-2024-39477 7.8 HIGH mm/hugetlb: do not call vma_add_reservation upon ENOMEM
CVE-2024-39472 7.3 HIGH xfs: fix log recovery buffer allocation for the legacy h_size fixup
CVE-2024-39483 7.1 HIGH KVM: SVM: WARN on vNMI + NMI window iff NMIs are outright masked
CVE-2024-39484 mmc: davinci: Don't strip remove function when driver is builtin
CVE-2024-39476 md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING
CVE-2024-39475 fbdev: savage: Handle err return when savagefb_check_var failed
CVE-2024-39474 mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL
CVE-2024-39473 ASoC: SOF: ipc4-topology: Fix input format query of process modules without base extension

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-39485

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