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Oracle Linux: (CVE-2024-27393) ELSA-2024-4349: kernel security and bug fix update

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Oracle Linux: (CVE-2024-27393) ELSA-2024-4349: kernel security and bug fix update

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/14/2024
Created
07/10/2024
Added
07/09/2024
Modified
07/09/2024

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").

Solution(s)

  • oracle-linux-upgrade-kernel

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