CVE-2024-56600

net: inet6: do not leave a dangling sk pointer in inet6_create()

State: Published
Severity: 7.8 High
Published: Dec 27, 2024
Updated: Oct 15, 2026
Reserved: Dec 27, 2024

Description

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

net: inet6: do not leave a dangling sk pointer in inet6_create()

sock_init_data() attaches the allocated sk pointer to the provided sock object. If inet6_create() fails later, the sk object is released, but the sock object retains the dangling sk pointer, which may cause use-after-free later.

Clear the sock sk pointer on error.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f2709d1271cfdf55c670ab5c5982139ab627ddc7Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 35360255ca30776dee34d9fa764cffa24d0a5f65Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 276a473c956fb55a6f3affa9ff232e10fffa7b43Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 79e16a0d339532ea832d85798eb036fc4f9e0ceaAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 706b07b7b37f886423846cb38919132090bc40daAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f44fceb71d72d29fb00e0ac84cdf9c081b03cd06Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9df99c395d0f55fb444ef39f4d6f194ca437d884Affected
LinuxLinux	2.6.12Affected before 2.6.12Not affected 5.4.287 through 5.4.Not affected 5.10.231 through 5.10.Not affected 5.15.174 through 5.15.Not affected 6.1.120 through 6.1.Not affected 6.6.66 through 6.6.Not affected 6.12.5 through 6.12.Not affected 6.13 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f2709d1271cfdf55c670ab5c5982139ab627ddc7Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 35360255ca30776dee34d9fa764cffa24d0a5f65Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 276a473c956fb55a6f3affa9ff232e10fffa7b43Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 79e16a0d339532ea832d85798eb036fc4f9e0ceaAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 706b07b7b37f886423846cb38919132090bc40daAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f44fceb71d72d29fb00e0ac84cdf9c081b03cd06Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9df99c395d0f55fb444ef39f4d6f194ca437d884Affected

LinuxLinux

2.6.12Affected
before 2.6.12Not affected
5.4.287 through 5.4.*Not affected
5.10.231 through 5.10.*Not affected
5.15.174 through 5.15.*Not affected
6.1.120 through 6.1.*Not affected
6.6.66 through 6.6.*Not affected
6.12.5 through 6.12.*Not affected
6.13 and laterNot affected

References

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