CVE-2026-45948

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents() In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak. Fix this by jumping to the out label to ensure the path is properly released.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/12615ab4bfb69678e5d961b28bb70040299e51b1	Patch
https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21f	Patch
https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58	Patch
https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aec	Patch
https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248d	Patch
https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2	Patch
https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935	Patch
https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833	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::::::::
	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:3.15:-::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc3::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc4::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc5::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc6::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc7::::::
	cpe:2.3:o:linux:linux_kernel:3.15:rc8::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52

NVD link : CVE-2026-45948

Mitre link : CVE-2026-45948

CVE.ORG link : CVE-2026-45948

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-401

Missing Release of Memory after Effective Lifetime

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