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VULNERABILITIES

CVE-2026-43393 Details

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies() Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL, we're not freeing the chunk map that we've just looked up.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.5 MEDIUMVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5 kernel.orgPatch
https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab kernel.orgPatch
https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a kernel.orgPatch
https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050 kernel.orgPatch

Weakness Enumeration

CWE-IDCWE NameSource
CWE-401Missing Release of Memory after Effective Lifetime[email protected]

Affected Products

ProductVersions
linux linux kernel
>= 6.12, < 6.12.78
>= 6.13, < 6.18.19
>= 6.19, < 6.19.9
7.0 rc1
7.0 rc2

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-43393
NVD Published Date:
May 8, 2026
NVD Last Modified:
Jun 17, 2026
Source:
kernel.org
CVE-2026-43393 Details - Not Deferred