CVE-2022-50512

ext4: fix potential memory leak in ext4_fc_record_regions()

MEDIUM

5.5

CVSS Score

Published: October 7, 2025 at 03:19 PM UTC

Updated: June 17, 2026 at 05:23 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential memory leak in ext4_fc_record_regions() As krealloc may return NULL, in this case 'state->fc_regions' may not be freed by krealloc, but 'state->fc_regions' already set NULL. Then will lead to 'state->fc_regions' memory leak.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.10 ≤ v < 5.10.1505.10 ≤ v < 5.15.755.10 ≤ v < 5.19.175.10 ≤ v < 6.0.35.10 ≤ v < 6.15.11 ≤ v < 5.15.755.16 ≤ v < 5.19.176.0 ≤ v < 6.0.35.108016e29f4362e285f0f7e38fadc61a5b7bdfdfa2

Vendor states this is fixed in 2cfb769d60a2a57eb3566765428b6131cd16dcfe (fixed)

Vendor states this is fixed in 417b0455a0b6d0f60a2930592731d1f8340e24be (fixed)

Vendor states this is fixed in 518566e71ad86b7c2f1bf6d9caee9588bb7ac158 (fixed)

Vendor states this is fixed in 7069d105c1f15c442b68af43f7fde784f3126739 (fixed)

Vendor states this is fixed in a4058b869e6c5e517c79e30532a350d0f3115c3e (fixed)

Vendor states this is fixed in 5.10 (unaffected)

Vendor states this is fixed in 5.10.150 (unaffected)

Vendor states this is fixed in 5.15.75 (unaffected)

Vendor states this is fixed in 5.19.17 (unaffected)

Vendor states this is fixed in 6.0.3 (unaffected)

Vendor states this is fixed in 6.1 (unaffected)