// For flags

CVE-2024-27393

xen-netfront: Add missing skb_mark_for_recycle

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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").

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: xen-netfront: agrega skb_mark_for_recycle faltante. Tenga en cuenta que skb_mark_for_recycle() se introduce más tarde que la etiqueta de corrección en el commit 6a5bcd84e886 ("page_pool: permitir que los controladores indiquen el reciclaje de SKB"). Se cree que a la etiqueta de correcciones le faltaba una llamada a page_pool_release_page() entre v5.9 y v5.14, después de lo cual debería haber usado skb_mark_for_recycle(). Desde v6.6, la llamada page_pool_release_page() se eliminó (en el commit 535b9c61bdef ("net: page_pool: hide page_pool_release_page()") y las personas que llaman restantes se convirtieron (en el commit 6bfef2ec0172 ("Merge Branch 'net-page_pool-remove-page_pool_release_page'") ). Esta fuga se hizo visible en la versión 6.8 mediante el commit dba1b8a7ab68 ("mm/page_pool: captura pérdidas de memoria en page_pool").

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-25 CVE Reserved
  • 2024-05-09 CVE Published
  • 2024-06-11 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 5.15.154
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 5.15.154"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.1.85
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.1.85"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.6.26
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.6.26"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.8.5
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.8.5"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.9 < 6.9
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.9 < 6.9"
en
Affected