01 Record

CVE-2022-49349

ext4: fix use-after-free in ext4_rename_dir_prepare

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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02 Description

ext4: fix use-after-free in ext4_rename_dir_prepare

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.29% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 21.4% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2025-02-26 02:11Z1 YR AGO

Last updated

2026-08-05 08:54Z2 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

bcf3fbda62cdcaca40acd2e57fc3a290a9078b6721c7995972932e7f4c0c3094

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 1a3a15bf6f9963d755270cbdb282863b84839195, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 97f802a652a749422dede32071d29a53cf4bd034, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 10801095224de0d0ab06ae60698680c1f883a3ae, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < eaecf7ebfd5dd09038a80b14be46b844f54cfc5c, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < dd887f83ea54aea5b780a84527e23ab95f777fed, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 364380c00912bed9b5d99eb485018360b0ecf64f, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 0ff38b99fa075ddd246487a28cb9af049f4ceef1, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 4a2bea60cf7ff957b3eda0b17750d483876a02fa, 32f7f22c0b52e8189fef83986b16dc7abe95f2c4 to < 0be698ecbe4471fcad80e81ec6a05001421041b3, 3.8—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/1a3a15bf6f9963d755270cbdb282863b84839195
git.kernel.orghttps://git.kernel.org/stable/c/97f802a652a749422dede32071d29a53cf4bd034
git.kernel.orghttps://git.kernel.org/stable/c/10801095224de0d0ab06ae60698680c1f883a3ae
git.kernel.orghttps://git.kernel.org/stable/c/eaecf7ebfd5dd09038a80b14be46b844f54cfc5c
git.kernel.orghttps://git.kernel.org/stable/c/dd887f83ea54aea5b780a84527e23ab95f777fed
git.kernel.orghttps://git.kernel.org/stable/c/364380c00912bed9b5d99eb485018360b0ecf64f
git.kernel.orghttps://git.kernel.org/stable/c/0ff38b99fa075ddd246487a28cb9af049f4ceef1
git.kernel.orghttps://git.kernel.org/stable/c/4a2bea60cf7ff957b3eda0b17750d483876a02fa
git.kernel.orghttps://git.kernel.org/stable/c/0be698ecbe4471fcad80e81ec6a05001421041b3

07 Fixed in

Debian 12

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 5.18.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.