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CVE-2022-49384

md: fix double free of io_acct_set bioset

HIGH
7.8
CVSS Score
Published: February 26, 2025 at 02:11 AM UTC
Updated: June 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: md: fix double free of io_acct_set bioset Now io_acct_set is alloc and free in personality. Remove the codes that free io_acct_set in md_free and md_stop.

Affected

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

Linux Kernel· Linux
95%
v ≥ 5.16.35.15.17 ≤ v < 5.15.465.16.3 ≤ v < 5.175.16.3 ≤ v < 5.17.145.17 ≤ v < 5.17.145.17 ≤ v < 5.18.35.17 ≤ v < 5.195.18 ≤ v < 5.18.30c031fd37f69deb0cd8c43bbfcfccd62ebd7e9520e3d58f50a875343124bcf5a9637520a492b0d15.15.175.16.35.1792053ae0398a58c6914e807d5e070297ba8cfe88
Vendor states this is fixed in 36a2fc44c574a59ee3b5e2cb327182f227b2b07e (fixed)
Vendor states this is fixed in 42b805af102471f53e3c7867b8c2b502ea4eef7e (fixed)
Vendor states this is fixed in ea7d7bd90079d96f9c86bdaf0b106e0cd2a70661 (fixed)
Vendor states this is fixed in f99d5b5dc8a42c807b5f1176b925aa45d61962ab (fixed)
Vendor states this is fixed in 5.15.46 (unaffected)
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 5.17.14 (unaffected)
Vendor states this is fixed in 5.18.3 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/36a2fc44c574a59ee3b5e2cb327182f227b2b07e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/42b805af102471f53e3c7867b8c2b502ea4eef7e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ea7d7bd90079d96f9c86bdaf0b106e0cd2a70661
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f99d5b5dc8a42c807b5f1176b925aa45d61962ab

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-415

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