TI-2023-29392 Aliases CVE-2023-53091 GHSA-ghqh-9ppg-g8cf

ext4: update s_journal_inum if it changes after journal replay

LOW 24CWE-476Published 2025-05-02 · Updated 2026-11-05

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: 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after journal replay When mounting a crafted ext4 image, s_journal_inum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the journal through the old s_journal_inum. And the new s_journal_inum bypasses some of the checks in ext4_get_journal(), which may trigger a null pointer dereference problem. So if s_journal_inum changes after the journal replay, we ignore the change, and rewrite the current journal_inum to the superblock.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00215 11th percentileScored 2026-11-07

Fix Partial Linux (Linux): 3.17, 4.5, 4.10 +6Red Hat: 4 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	3.16.85 to before 3.17; 4.4.221 to before 4.5; 4.9.221 to before 4.10; 4.14.178 to before 4.15; 4.19.73 to before 4.20	3.17, 4.5, 4.10, 4.15, 4.20	Patch available	CNA
Linux	Linux	5.2 and later	5.15.104, 6.1.21, 6.2.8, 6.3	Patch available	CNA

Linux VendorLinux Affected 3.16.85 to before 3.17; 4.4.221 to before 4.5; 4.9.221 to before 4.10; 4.14.178 to before 4.15; 4.19.73 to before 4.20 Fixed in 3.17, 4.5, 4.10, 4.15, 4.20 Patch available CNA
Linux VendorLinux Affected 5.2 and later Fixed in 5.15.104, 6.1.21, 6.2.8, 6.3 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	before 5.15.104; 5.16 to before 6.1.21; 6.2 to before 6.2.8	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 5.15.104; 5.16 to before 6.1.21; 6.2 to before 6.2.8 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 3.17, 4.5, 4.10, 4.15, 4.20
Fix · CNA Linux (Linux) Fixed in 5.15.104, 6.1.21, 6.2.8, 6.3

Vendor assessments

Red Hat

Red Hat rating: Low. 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 8	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 9	Affected	No fix yet: Fix deferred

Not affected: 1 product

Red Hat Enterprise Linux 10

Timeline

2026-10-02 Threatist record created from CVE-2023-53091
2026-10-03 Alias added: GHSA-ghqh-9ppg-g8cf
2026-11-05 CISA SSVC decision points changed

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