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CVE-2024-0775

Kernel: use-after-free while changing the mount option in __ext4_remount leading

HIGH
7.1
CVSS Score
Published: January 22, 2024 at 01:03 PM UTC
Updated: August 10, 2026 at 10:17 PM UTC
2 products affected across 2 vendorsLinux KernelEnterprise Linux

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free.

Affected

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

Linux Kernel· Linux
95%
v < 4.14.315v < 6.44.15 ≤ v < 4.19.2834.20 ≤ v < 5.4.2435.11 ≤ v < 5.15.1125.16 ≤ v < 6.1.295.5 ≤ v < 5.10.1806.2 ≤ v < 6.2.166.3 ≤ v < 6.3.34.154.205.115.165.56.26.36.4 rc1
Affected range stops below 4.14.315, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.283, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.180, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.112, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.243, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.29, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
9.0
Vendor states this is fixed in 6 (unaffected)
Vendor states this is fixed in 7 (unaffected)
Vendor states this is fixed in 8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2024-0775
Issue Trackingx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2259414
Patch
Source: [email protected]
https://scm.linefinity.com/common/linux-stable/commit/4c0b4818b1f636bc96359f7817a2d8bab6370162

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.1HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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