TI-2024-27335 Aliases CVE-2024-40972 GHSA-934p-m4fh-22q3

ext4: do not create EA inode under buffer lock

LOW 24CWE-667Published 2024-07-12 · Updated 2026-05-11

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 11 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-667 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: do not create EA inode under buffer lock ext4_xattr_set_entry() creates new EA inodes while holding buffer lock on the external xattr block. This is problematic as it nests all the allocation locking (which acquires locks on other buffers) under the buffer lock. This can even deadlock when the filesystem is corrupted and e.g. quota file is setup to contain xattr block as data block. Move the allocation of EA inode out of ext4_xattr_set_entry() into the callers.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00221 12th percentileScored 2026-11-07

Fix Partial Linux (Linux): 6.1.107, 6.6.47, 6.9.7 +1Red Hat: 3 advisoriesRed Hat: 11 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	4.13 and later	6.1.107, 6.6.47, 6.9.7, 6.10	Patch available	CNA

Linux VendorLinux Affected 4.13 and later Fixed in 6.1.107, 6.6.47, 6.9.7, 6.10 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	before 6.1.107; 6.2 to before 6.6.47; 6.7 to before 6.9.7	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 6.1.107; 6.2 to before 6.6.47; 6.7 to before 6.9.7 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.1.107, 6.6.47, 6.9.7, 6.10

Red Hat 3 advisories

RHSA-2024:8617 Released 2024-10-30 · Red Hat rating Moderate
kernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.42.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.42.1.el9_4, kernel-64k-devel-5.14.0-427.42.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.42.1.el9_4, kernel-5.14.0-427.42.1.el9_4, kernel-64k-5.14.0-427.42.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.42.1.el9_4, libperf-5.14.0-427.42.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.42.1.el9_4, kernel-rt-core-5.14.0-427.42.1.el9_4, kernel-rt-debug-5.14.0-427.42.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.42.1.el9_4, kernel-rt-core-5.14.0-427.42.1.el9_4, kernel-rt-debug-5.14.0-427.42.1.el9_4 +9
RHSA-2024:7000 Released 2024-09-24 · Red Hat rating Important
kernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.22.1.el8_10, kernel-4.18.0-553.22.1.el8_10, kernel-abi-stablelists-4.18.0-553.22.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.22.1.el8_10
RHSA-2024:7001 Released 2024-09-24 · Red Hat rating Important
kernel-rt security update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-core-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-debug-4.18.0-553.22.1.rt7.363.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-core-4.18.0-553.22.1.rt7.363.el8_10, kernel-rt-debug-4.18.0-553.22.1.rt7.363.el8_10 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 9	Affected	No fix planned: Will not fix
RHOAI-2.13-RHEL-8	Fixed	—
RHOAI-2.14-RHEL-8	Fixed	—
Red Hat Enterprise Linux AppStream (v. 9)	Fixed	RHSA-2024:8617
Red Hat Enterprise Linux BaseOS (v. 8)	Fixed	RHSA-2024:7000
Red Hat Enterprise Linux BaseOS (v. 9)	Fixed	RHSA-2024:8617
Red Hat Enterprise Linux CRB (v. 8)	Fixed	RHSA-2024:7000
Red Hat Enterprise Linux CRB (v. 9)	Fixed	RHSA-2024:8617
Red Hat Enterprise Linux NFV (v. 8)	Fixed	RHSA-2024:7001
Red Hat Enterprise Linux NFV (v. 9)	Fixed	RHSA-2024:8617
Red Hat Enterprise Linux RT (v. 8)	Fixed	RHSA-2024:7001
Red Hat Enterprise Linux RT (v. 9)	Fixed	RHSA-2024:8617

Timeline

2026-10-02 Threatist record created from CVE-2024-40972
2026-10-03 Alias added: GHSA-934p-m4fh-22q3
2026-10-29 Affected versions changed · Red Hat
2026-10-30 Fix available: RHOAI-2.13-RHEL-8, RHOAI-2.14-RHEL-8 · Red Hat

References

Patch 4

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences