CVE-2026-43393

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43393
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5 Patch
https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab Patch
https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a Patch
https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
History

26 May 2026, 14:53

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5 - () https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5 - Patch
References () https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab - () https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab - Patch
References () https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a - () https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a - Patch
References () https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050 - () https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050 - Patch
CWE CWE-401
First Time Linux
Linux linux Kernel

08 May 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-08 15:16

Updated : 2026-05-26 14:53

NVD link : CVE-2026-43393

Mitre link : CVE-2026-43393

CVE.ORG link : CVE-2026-43393

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime