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CVE-2022-49620: net: tipc: fix possible refcount leak in tipc_sk_create()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: tipc: fix possible refcount leak in tipc_sk_create() Free sk in case tipc_sk_insert() fails.

Affected products

• Linux kernel: before 4.9.324; from 4.10 before 4.14.289; from 4.15 before 4.19.253; from 4.20 before 5.4.207; from 5.5 before 5.10.132; from 5.11 before 5.15.56 — fixed in 4.14.289, 4.19.253, 4.9.324, 5.10.132, 5.15.56, 5.18.13

How to fix

Upgrade to a fixed version: Linux kernel 4.14.289, 4.19.253, 4.9.324, 5.10.132. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/00aff3590fc0a73bddd3b743863c14e76fd35c0c
• https://git.kernel.org/stable/c/3b2957fc09fe1ac7f07f40dd50dd5f93e3f3a7a2
• https://git.kernel.org/stable/c/4919d82f7041157a421ca9bf39a78551d5ad8a1b
• https://git.kernel.org/stable/c/638fa20b618b2bbcf86da71231624cc82121a036
• https://git.kernel.org/stable/c/7bc9e7f70bc57d8f02ffea2a42094281effb15ef
• https://git.kernel.org/stable/c/833ecd0eae76eadf81d6d747bb5bc992d1151867
• https://git.kernel.org/stable/c/ef488669b2652bde5b6ee5a409a5b048a2a50db4
• https://git.kernel.org/stable/c/efa78f2ae363428525fb4981bb63c555ee79f3c7

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