CVE-2022-49912: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix ulist leaks in error paths of qgroup self tests In the test_no_shared_qgroup() and test_multiple_refs() qgroup self tests, if we fail to add the tree ref, remove the extent item or remove the extent ref, we are returning from the test function without freeing the "old_roots" ulist that was allocated by the previous calls to btrfs_find_all_roots(). Fix that by calling ulist_free() before returning.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.2 — 4.9.333
linux	linux_kernel	4.10 — 4.14.299
linux	linux_kernel	4.15 — 4.19.265
linux	linux_kernel	4.20 — 5.4.224
linux	linux_kernel	5.5 — 5.10.154
linux	linux_kernel	5.11 — 5.15.78
linux	linux_kernel	5.16 — 6.0.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0a0dead4ad1a2e2a9bdf133ef45111d7c8daef84 https://git.kernel.org/stable/c/203204798831c35d855ecc6417d98267d2d2184b https://git.kernel.org/stable/c/3f58283d83a588ff5da62fc150de19e798ed2ec2 https://git.kernel.org/stable/c/5d1a47ebf84540e40b5b43fc21aef0d6c0f627d9 https://git.kernel.org/stable/c/d37de92b38932d40e4a251e876cc388f9aee5f42 https://git.kernel.org/stable/c/d81370396025cf63a7a1b5f8bb25a3479203b2ca https://git.kernel.org/stable/c/da7003434bcab0ae9aba3f2c003e734cae093326 https://git.kernel.org/stable/c/f46ea5fa3320dca4fe0c0926b49a5f14cb85de62

Frequently Asked Questions

What is CVE-2022-49912? +

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix ulist leaks in error paths of qgroup self tests In the test_no_shared_qgroup() and test_multiple_refs() qgroup self tests, if we fail to add the tree ref, remove the extent item or remove the extent ref, we are returning from the test function without freeing the "old_roots" ulist that was allocated by the previous calls to btrfs_find_all_roots(). Fix that by calling ulist_free() before returning. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49912? +

CVE-2022-49912 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49912? +

CVE-2022-49912 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49912? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-49912