Linux Kernel up to 5.18.2 pci_disable_device privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.2. It has been rated as problematic. This affects the function pci_disable_device. Performing a manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2022-49525. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 5.18.2. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: media: cx25821: Fix the warning when removing the module When removing the module, we will get the following warning: [ 14.746697] remove_proc_entry: removing non-empty directory 'irq/21', leaking at least 'cx25821[1]' [ 14.747449] WARNING: CPU: 4 PID: 368 at fs/proc/generic.c:717 remove_proc_entry+0x389/0x3f0 [ 14.751611] RIP: 0010:remove_proc_entry+0x389/0x3f0 [ 14.759589] Call Trace: [ 14.759792] [ 14.759975] unregister_irq_proc+0x14c/0x170 [ 14.760340] irq_free_descs+0x94/0xe0 [ 14.760640] mp_unmap_irq+0xb6/0x100 [ 14.760937] acpi_unregister_gsi_ioapic+0x27/0x40 [ 14.761334] acpi_pci_irq_disable+0x1d3/0x320 [ 14.761688] pci_disable_device+0x1ad/0x380 [ 14.762027] ? _raw_spin_unlock_irqrestore+0x2d/0x60 [ 14.762442] ? cx25821_shutdown+0x20/0x9f0 [cx25821] [ 14.762848] cx25821_finidev+0x48/0xc0 [cx25821] [ 14.763242] pci_device_remove+0x92/0x240 Fix this by freeing the irq before call pci_disable_device().

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-49525 since 02/26/2025. The exploitability is told to be difficult. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 237099 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01600-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14 or 5.18.3 eliminates this vulnerability. Applying the patch 4d6295b6d986476232332fffd08575b185f90d81/5beb85ff7d005ddb7bf604a4f2dc76f01b84b318/258639bc55a586ee6df92d89786ccf1c71546d70/222292930c8ecc3516e03ec1f9fa8448be7ff496/3f94169affa33c9db4a439d88f09cb2ed3a33332/1f0fc1dfb5fdd456657519a97fab83691b96c6a0/9d92291698e5cc35a2b8a1106a01ddd7d60ade2d/005fd553f5f10fe8618d92f94ad10f9051eac331/2203436a4d24302871617373a7eb21bc17e38762 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 vulnerability database at Tenable (237099). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237099
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01600-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.318/4.14.283/4.19.247/5.4.198/5.10.121/5.15.46/5.17.14/5.18.3
Patch: 4d6295b6d986476232332fffd08575b185f90d81/5beb85ff7d005ddb7bf604a4f2dc76f01b84b318/258639bc55a586ee6df92d89786ccf1c71546d70/222292930c8ecc3516e03ec1f9fa8448be7ff496/3f94169affa33c9db4a439d88f09cb2ed3a33332/1f0fc1dfb5fdd456657519a97fab83691b96c6a0/9d92291698e5cc35a2b8a1106a01ddd7d60ade2d/005fd553f5f10fe8618d92f94ad10f9051eac331/2203436a4d24302871617373a7eb21bc17e38762

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
10/21/2025 +237 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49525 (🔍)
GCVE (CVE): GCVE-0-2022-49525
GCVE (VulDB): GCVE-100-297129

Entryinfo

Created: 02/26/2025 10:29
Updated: 10/21/2025 20:48
Changes: 02/26/2025 10:29 (56), 05/23/2025 07:07 (2), 10/21/2025 20:48 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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