Bug 2309848 (CVE-2024-44985) - CVE-2024-44985 kernel: ipv6: prevent possible UAF in ip6_xmit()
Summary: CVE-2024-44985 kernel: ipv6: prevent possible UAF in ip6_xmit()
Keywords:
Status: NEW
Alias: CVE-2024-44985
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2309927
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-09-04 20:21 UTC by OSIDB Bzimport
Modified: 2024-11-15 09:59 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2024-09-04 20:21:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv6: prevent possible UAF in ip6_xmit()

If skb_expand_head() returns NULL, skb has been freed
and the associated dst/idev could also have been freed.

We must use rcu_read_lock() to prevent a possible UAF.
Comment 1 Robb Gatica 2024-09-04 21:58:21 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024090445-CVE-2024-44985-2dde@gregkh/T
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