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0

CVE-2024-27393

Disclosure Date: May 14, 2024 •
CVE-2024-27393
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Description

In the Linux kernel, the following vulnerability has been resolved:

xen-netfront: Add missing skb_mark_for_recycle

Notice that skb_mark_for_recycle() is introduced later than fixes tag in
commit 6a5bcd84e886 (“page_pool: Allow drivers to hint on SKB recycling”).

It is believed that fixes tag were missing a call to page_pool_release_page()
between v5.9 to v5.14, after which is should have used skb_mark_for_recycle().
Since v6.6 the call page_pool_release_page() were removed (in
commit 535b9c61bdef (“net: page_pool: hide page_pool_release_page()”)
and remaining callers converted (in commit 6bfef2ec0172 (“Merge branch
‘net-page_pool-remove-page_pool_release_page’”)).

This leak became visible in v6.8 via commit dba1b8a7ab68 (“mm/page_pool: catch
page_pool memory leaks”).

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CVSS V3 Severity and Metrics
Base Score:
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Impact Score:
Unknown
Exploitability Score:
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Vector:
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Attack Vector (AV):
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Attack Complexity (AC):
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Privileges Required (PR):
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User Interaction (UI):
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Scope (S):
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Confidentiality (C):
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Integrity (I):
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Availability (A):
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General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Linux 4143b9479caa
Linux not down converted
Prerequisites
Unknown
Discovered By
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PoC Author
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Metasploit Module
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Reporter
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Vendors

  • Linux

Products

  • Linux
Technical Analysis