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CVE-2024-26925— netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path

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，该漏洞源于提交互斥体在 nft_gc_seq_begin() 和 nft_gc_seq_end() 之间的关键部分释放。

CVSS 7.8 · High EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 24

VendorProduct Version RangeStatus
Linux Linux 4b6346dc1edfb9839d6edee7360ed31a22fa6c95< 61ac7284346c32f9a8c8ceac56102f7914060428 affected
23292bdfda5f04e704a843b8f97b0eb95ace1ca6< 2cee2ff7f8cce12a63a0a23ffe27f08d99541494 affected
b44a459c6561595ed7c3679599c5279204132b33< eb769ff4e281f751adcaf4f4445cbf30817be139 affected
5d319f7a81431c6bb32eb4dc7d7975f99e2c8c66< 8d3a58af50e46167b6f1db47adadad03c0045dae affected
720344340fb9be2765bbaab7b292ece0a4570eae< 8038ee3c3e5b59bcd78467686db5270c68544e30 affected
720344340fb9be2765bbaab7b292ece0a4570eae< a34ba4bdeec0c3b629160497594908dc820110f1 affected
720344340fb9be2765bbaab7b292ece0a4570eae< 0d459e2ffb541841714839e8228b845458ed3b27 affected
f85ca36090cbb252bcbc95fc74c2853fc792694f affected
… +16 more rows
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I. Basic Information for CVE-2024-26925

Vulnerability Information
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Vulnerability Title
netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path The commit mutex should not be released during the critical section between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC worker could collect expired objects and get the released commit lock within the same GC sequence. nf_tables_module_autoload() temporarily releases the mutex to load module dependencies, then it goes back to replay the transaction again. Move it at the end of the abort phase after nft_gc_seq_end() is called.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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，该漏洞源于提交互斥体在 nft_gc_seq_begin() 和 nft_gc_seq_end() 之间的关键部分释放。
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 4b6346dc1edfb9839d6edee7360ed31a22fa6c95 ~ 61ac7284346c32f9a8c8ceac56102f7914060428 -
Linux Linux 6.5 -

II. Public POCs for CVE-2024-26925

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III. Intelligence Information for CVE-2024-26925

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Mailing List Discussions for CVE-2024-26925 (3)

Other References for CVE-2024-26925 (7)

Same Patch Batch · Linux · 2024-04-24 · 4 CVEs total

CVE-2024-26926 7.8 HIGH binder: check offset alignment in binder_get_object()
CVE-2024-26924 7.8 HIGH netfilter: nft_set_pipapo: do not free live element
CVE-2024-26923 7.8 HIGH af_unix: Fix garbage collector racing against connect()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26925

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