CVE-2024-44986

ipv6: fix possible UAF in ip6_finish_output2()

State: Published
Severity: 8.1 High
Published: Sep 4, 2024
Updated: Sep 29, 2026
Reserved: Aug 21, 2024

Read the record on cve.org

Description

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

ipv6: fix possible UAF in ip6_finish_output2()

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

We need to hold rcu_read_lock() to make sure the dst and associated idev are alive.

Scores

CVSS	Score	Vector	Source
3.1	8.1 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ded37d03440d0ab346a8287cc2ba88b8dc90ceb0 to before ae8512e93f4ce47614ca89defaec1b93e00697b8Affected 2323690eb05865a657709f4d28eb9538ea97bfc2 to before 1504108cb6020df7b1a31c9bb80fd587470aa448Affected 5796015fa968a3349027a27dcd04c71d95c53ba5 to before e891b36de161fcd96f12ff83667473e5067b9037Affected 5796015fa968a3349027a27dcd04c71d95c53ba5 to before 3574d28caf9a09756ae87ad1ea096c6f47b6101eAffected 5796015fa968a3349027a27dcd04c71d95c53ba5 to before 6ab6bf731354a6fdbaa617d1ec194960db61cf3bAffected 5796015fa968a3349027a27dcd04c71d95c53ba5 to before 56efc253196751ece1fc535a5b582be127b0578aAffected 5796015fa968a3349027a27dcd04c71d95c53ba5 to before da273b377ae0d9bd255281ed3c2adb228321687bAffected b34c668a867ffdcf8bd8db4a36512572e82b4a15Affected 5.4.137 to before 5.4.289Affected 5.10.55 to before 5.10.233Affected 5.13.7 to before 5.14Affected
LinuxLinux	5.14Affected before 5.14Not affected 5.4.289 through 5.4.Not affected 5.10.233 through 5.10.Not affected 5.15.166 through 5.15.Not affected 6.1.107 through 6.1.Not affected 6.6.48 through 6.6.Not affected 6.10.7 through 6.10.Not affected 6.11 and laterNot affected

Product

Versions

LinuxLinux

ded37d03440d0ab346a8287cc2ba88b8dc90ceb0 to before ae8512e93f4ce47614ca89defaec1b93e00697b8Affected
2323690eb05865a657709f4d28eb9538ea97bfc2 to before 1504108cb6020df7b1a31c9bb80fd587470aa448Affected
5796015fa968a3349027a27dcd04c71d95c53ba5 to before e891b36de161fcd96f12ff83667473e5067b9037Affected
5796015fa968a3349027a27dcd04c71d95c53ba5 to before 3574d28caf9a09756ae87ad1ea096c6f47b6101eAffected
5796015fa968a3349027a27dcd04c71d95c53ba5 to before 6ab6bf731354a6fdbaa617d1ec194960db61cf3bAffected
5796015fa968a3349027a27dcd04c71d95c53ba5 to before 56efc253196751ece1fc535a5b582be127b0578aAffected
5796015fa968a3349027a27dcd04c71d95c53ba5 to before da273b377ae0d9bd255281ed3c2adb228321687bAffected
b34c668a867ffdcf8bd8db4a36512572e82b4a15Affected
5.4.137 to before 5.4.289Affected
5.10.55 to before 5.10.233Affected
5.13.7 to before 5.14Affected

LinuxLinux

5.14Affected
before 5.14Not affected
5.4.289 through 5.4.*Not affected
5.10.233 through 5.10.*Not affected
5.15.166 through 5.15.*Not affected
6.1.107 through 6.1.*Not affected
6.6.48 through 6.6.*Not affected
6.10.7 through 6.10.*Not affected
6.11 and laterNot affected

References

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