Linux Kernel up to 6.3.1 Safexcel Driver free_irq state issue

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.3.1. This affects the function free_irq of the component Safexcel Driver. The manipulation leads to state issue. This vulnerability is uniquely identified as CVE-2023-54126. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 6.3.1. This issue affects the function free_irq of the component Safexcel Driver. The manipulation with an unknown input leads to a state issue vulnerability. Using CWE to declare the problem leads to CWE-371. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: crypto: safexcel - Cleanup ring IRQ workqueues on load failure A failure loading the safexcel driver results in the following warning on boot, because the IRQ affinity has not been correctly cleaned up. Ensure we clean up the affinity and workqueues on a failure to load the driver. crypto-safexcel: probe of f2800000.crypto failed with error -2 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 232 at kernel/irq/manage.c:1913 free_irq+0x300/0x340 Modules linked in: hwmon mdio_i2c crypto_safexcel(+) md5 sha256_generic libsha256 authenc libdes omap_rng rng_core nft_masq nft_nat nft_chain_nat nf_nat nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tables libcrc32c nfnetlink fuse autofs4 CPU: 1 PID: 232 Comm: systemd-udevd Tainted: G W 6.1.6-00002-g9d4898824677 #3 Hardware name: MikroTik RB5009 (DT) pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : free_irq+0x300/0x340 lr : free_irq+0x2e0/0x340 sp : ffff800008fa3890 x29: ffff800008fa3890 x28: 0000000000000000 x27: 0000000000000000 x26: ffff8000008e6dc0 x25: ffff000009034cac x24: ffff000009034d50 x23: 0000000000000000 x22: 000000000000004a x21: ffff0000093e0d80 x20: ffff000009034c00 x19: ffff00000615fc00 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 000075f5c1584c5e x14: 0000000000000017 x13: 0000000000000000 x12: 0000000000000040 x11: ffff000000579b60 x10: ffff000000579b62 x9 : ffff800008bbe370 x8 : ffff000000579dd0 x7 : 0000000000000000 x6 : ffff000000579e18 x5 : ffff000000579da8 x4 : ffff800008ca0000 x3 : ffff800008ca0188 x2 : 0000000013033204 x1 : ffff000009034c00 x0 : ffff8000087eadf0 Call trace: free_irq+0x300/0x340 devm_irq_release+0x14/0x20 devres_release_all+0xa0/0x100 device_unbind_cleanup+0x14/0x60 really_probe+0x198/0x2d4 __driver_probe_device+0x74/0xdc driver_probe_device+0x3c/0x110 __driver_attach+0x8c/0x190 bus_for_each_dev+0x6c/0xc0 driver_attach+0x20/0x30 bus_add_driver+0x148/0x1fc driver_register+0x74/0x120 __platform_driver_register+0x24/0x30 safexcel_init+0x48/0x1000 [crypto_safexcel] do_one_initcall+0x4c/0x1b0 do_init_module+0x44/0x1cc load_module+0x1724/0x1be4 __do_sys_finit_module+0xbc/0x110 __arm64_sys_finit_module+0x1c/0x24 invoke_syscall+0x44/0x110 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x20/0x80 el0_svc+0x14/0x4c el0t_64_sync_handler+0xb0/0xb4 el0t_64_sync+0x148/0x14c ---[ end trace 0000000000000000 ]---

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2023-54126 since 12/24/2025. The exploitation is known to be difficult. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/03/2026).

The vulnerability scanner Nessus provides a plugin with the ID 280020 (Linux Distros Unpatched Vulnerability : CVE-2023-54126), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.4.243, 5.10.180, 5.15.111, 6.1.28, 6.2.15 or 6.3.2 eliminates this vulnerability. Applying the patch 4f4de392f4926820ec1fd3573a016c704a68893d/0a89d4a075524cf1f865cfdbb9cf38ab8e3e5409/09e177d6f7edd0873a63f51abe914902ec0f4400/4d9d2fd86766ee3ec077c011aa482e85b6c9595c/162f9daf0c22480f88b24fd46d16abae46c10fce/ab573af2655ba509e2a167897de9b5585c2ca44d/ca25c00ccbc5f942c63897ed23584cfc66e8ec81 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (280020) and CERT Bund (WID-SEC-2025-2929). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: State issue
CWE: CWE-371
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280020
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-54126

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.4.243/5.10.180/5.15.111/6.1.28/6.2.15/6.3.2
Patch: 4f4de392f4926820ec1fd3573a016c704a68893d/0a89d4a075524cf1f865cfdbb9cf38ab8e3e5409/09e177d6f7edd0873a63f51abe914902ec0f4400/4d9d2fd86766ee3ec077c011aa482e85b6c9595c/162f9daf0c22480f88b24fd46d16abae46c10fce/ab573af2655ba509e2a167897de9b5585c2ca44d/ca25c00ccbc5f942c63897ed23584cfc66e8ec81

Timelineinfo

12/24/2025 Advisory disclosed
12/24/2025 +0 days CVE reserved
12/24/2025 +0 days VulDB entry created
01/03/2026 +10 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-54126 (🔒)
GCVE (CVE): GCVE-0-2023-54126
GCVE (VulDB): GCVE-100-338087
CERT Bund: WID-SEC-2025-2929 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/24/2025 15:07
Updated: 01/03/2026 04:20
Changes: 12/24/2025 15:07 (59), 12/27/2025 14:29 (2), 01/03/2026 04:20 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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