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CVE-2024-56600

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

HIGH
7.8
CVSS Score
Published: December 27, 2024 at 02:51 PM UTC
Updated: October 15, 2026 at 01:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v < 5.4.2875.11 ≤ v < 5.15.1745.16 ≤ v < 6.1.1205.5 ≤ v < 5.10.2316.2 ≤ v < 6.6.666.7 ≤ v < 6.12.51da177e4c3f41524e886b7f1b8a0c1fc7321cac22.6.12
Vendor states this is fixed in 276a473c956fb55a6f3affa9ff232e10fffa7b43 (fixed)
Vendor states this is fixed in 35360255ca30776dee34d9fa764cffa24d0a5f65 (fixed)
Vendor states this is fixed in 706b07b7b37f886423846cb38919132090bc40da (fixed)
Vendor states this is fixed in 79e16a0d339532ea832d85798eb036fc4f9e0cea (fixed)
Vendor states this is fixed in 9df99c395d0f55fb444ef39f4d6f194ca437d884 (fixed)
Vendor states this is fixed in f2709d1271cfdf55c670ab5c5982139ab627ddc7 (fixed)
Vendor states this is fixed in f44fceb71d72d29fb00e0ac84cdf9c081b03cd06 (fixed)
Vendor states this is fixed in 2.6.12 (unaffected)
Vendor states this is fixed in 5.10.231 (unaffected)
Vendor states this is fixed in 5.15.174 (unaffected)
Vendor states this is fixed in 5.4.287 (unaffected)
Vendor states this is fixed in 6.1.120 (unaffected)
Vendor states this is fixed in 6.12.5 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.6.66 (unaffected)

References (11)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/276a473c956fb55a6f3affa9ff232e10fffa7b43
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/35360255ca30776dee34d9fa764cffa24d0a5f65
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/706b07b7b37f886423846cb38919132090bc40da
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/79e16a0d339532ea832d85798eb036fc4f9e0cea
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9df99c395d0f55fb444ef39f4d6f194ca437d884
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f2709d1271cfdf55c670ab5c5982139ab627ddc7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f44fceb71d72d29fb00e0ac84cdf9c081b03cd06
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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