CVE-2026-45948
Analyzed
Analyzed - Analysis Complete
Memory Leak in Linux Kernel ext4 Filesystem
Publication date: 2026-05-27
Last updated on: 2026-06-16
Assigner: kernel.org
Description
Description
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 Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | 3.15 |
| linux | linux_kernel | From 6.13 (inc) to 6.18.14 (exc) |
| linux | linux_kernel | From 6.19 (inc) to 6.19.4 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.6.128 (exc) |
| linux | linux_kernel | From 6.7 (inc) to 6.12.75 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.202 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.1.165 (exc) |
| linux | linux_kernel | From 3.15.1 (inc) to 5.10.252 (exc) |
| linux | linux_kernel | 3.15 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-401 | The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse. |
