In the Linux kernel, the following vulnerability has been resolved:

erofs: stop parsing non-compact HEAD index if clusterofs is invalid

Syzbot generated a crafted image [1] with a non-compact HEAD index of
clusterofs 33024 while valid numbers should be 0 ~ lclustersize-1,
which causes the following unexpected behavior as below:

BUG: unable to handle page fault for address: fffff52101a3fff9
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffed067 P4D 23ffed067 PUD 0
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4398 Comm: kworker/u5:1 Not tainted 6.3.0-rc6-syzkaller-g09a9639e56c0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Workqueue: erofs_worker z_erofs_decompressqueue_work
RIP: 0010:z_erofs_decompress_queue+0xb7e/0x2b40
...
Call Trace:
<TASK>
z_erofs_decompressqueue_work+0x99/0xe0
process_one_work+0x8f6/0x1170
worker_thread+0xa63/0x1210
kthread+0x270/0x300
ret_from_fork+0x1f/0x30

Note that normal images or images using compact indexes are not
impacted. Let's fix this now.

[1] https://lore.kernel.org/r/000000000000ec75b005ee97fbaa@google.com

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00042.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < 880c79bdb002b9d5b6940e52c2ad3829c2178207
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < 7a4579cd6e4936de107c82499c3c9ee11b63401e
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < 060fecf1114ff9fcfe87953fe8c4fc5048777160
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < 7ee7a86e28ce9ead7112286c388df8d254c373c6
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < f01b2894928affa3339d355608713cf3db8360b8
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < 96a845419b3722869f09883319de4d55c44d9aef
02827e1796b33f1794966f5c3101f8da2dfa9c1d affected < cc4efd3dd2ac9f89143e5d881609747ecff04164
Linux Linux affected
Version Status Constraints
4.19 affected —
0 unaffected < 4.19
5.4.243 unaffected ≤ 5.4.*
5.10.180 unaffected ≤ 5.10.*
5.15.111 unaffected ≤ 5.15.*
6.1.28 unaffected ≤ 6.1.*
6.2.15 unaffected ≤ 6.2.*
6.3.2 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

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References
Link Providers
https://git.kernel.org/stable/c/060fecf1114ff9fcfe87953fe8c4fc5048777160 cve-icon cve-icon
https://git.kernel.org/stable/c/7a4579cd6e4936de107c82499c3c9ee11b63401e cve-icon cve-icon
https://git.kernel.org/stable/c/7ee7a86e28ce9ead7112286c388df8d254c373c6 cve-icon cve-icon
https://git.kernel.org/stable/c/880c79bdb002b9d5b6940e52c2ad3829c2178207 cve-icon cve-icon
https://git.kernel.org/stable/c/96a845419b3722869f09883319de4d55c44d9aef cve-icon cve-icon
https://git.kernel.org/stable/c/cc4efd3dd2ac9f89143e5d881609747ecff04164 cve-icon cve-icon
https://git.kernel.org/stable/c/f01b2894928affa3339d355608713cf3db8360b8 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025122420-CVE-2023-54132-dd33@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54132 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54132 cve-icon
History

Thu, 25 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References

Wed, 24 Dec 2025 13:15:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: erofs: stop parsing non-compact HEAD index if clusterofs is invalid Syzbot generated a crafted image [1] with a non-compact HEAD index of clusterofs 33024 while valid numbers should be 0 ~ lclustersize-1, which causes the following unexpected behavior as below: BUG: unable to handle page fault for address: fffff52101a3fff9 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffed067 P4D 23ffed067 PUD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4398 Comm: kworker/u5:1 Not tainted 6.3.0-rc6-syzkaller-g09a9639e56c0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 Workqueue: erofs_worker z_erofs_decompressqueue_work RIP: 0010:z_erofs_decompress_queue+0xb7e/0x2b40 ... Call Trace: <TASK> z_erofs_decompressqueue_work+0x99/0xe0 process_one_work+0x8f6/0x1170 worker_thread+0xa63/0x1210 kthread+0x270/0x300 ret_from_fork+0x1f/0x30 Note that normal images or images using compact indexes are not impacted. Let's fix this now. [1] https://lore.kernel.org/r/000000000000ec75b005ee97fbaa@google.com
Title erofs: stop parsing non-compact HEAD index if clusterofs is invalid
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-24T13:06:49.030Z

Reserved: 2025-12-24T13:02:52.522Z

Link: CVE-2023-54132

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-24T13:16:15.180

Modified: 2025-12-29T15:58:34.503

Link: CVE-2023-54132

cve-icon Redhat

Severity :

Publid Date: 2025-12-24T00:00:00Z

Links: CVE-2023-54132 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

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