NVD

CVE-2022-49112 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

Description

In the Linux kernel, the following vulnerability has been resolved: mt76: fix monitor mode crash with sdio driver mt7921s driver may receive frames with fragment buffers. If there is a CTS packet received in monitor mode, the payload is 10 bytes only and need 6 bytes header padding after RXD buffer. However, only RXD in the first linear buffer, if we pull buffer size RXD-size+6 bytes with skb_pull(), that would trigger "BUG_ON(skb->len < skb->data_len)" in __skb_pull(). To avoid the nonlinear buffer issue, enlarge the RXD size from 128 to 256 to make sure all MCU operation in linear buffer. [ 52.007562] kernel BUG at include/linux/skbuff.h:2313! [ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 52.007987] pc : skb_pull+0x48/0x4c [ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common] [ 52.008361] Call trace: [ 52.008377] skb_pull+0x48/0x4c [ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c] [ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917] [ 52.008449] kthread+0x148/0x3ac [ 52.008466] ret_from_fork+0x10/0x30

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 5.5 MEDIUM

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/123bc712b1de0805f9d683687e17b1ec2aba0b68	kernel.org	Patch
https://git.kernel.org/stable/c/95e2af01669c7a3cb7a933cefa06361f9db15059	kernel.org	Patch
https://git.kernel.org/stable/c/c37b4cab3d97ef64b206fca4d9daabd9aff7356e	kernel.org	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

CVE Modified by kernel.org 8/12/2026 8:17:28 PM

Action

Type

Old Value

New Value

Removed

Reference

https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5

Removed

Reference Type

https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5 Types: Patch

Changed

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"13946d5a68efd11dd6af2f6ef4c908f6b00158a5","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"c37b4cab3d97ef64b206fca4d9daabd9aff7356e","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"95e2af01669c7a3cb7a933cefa06361f9db15059","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"123bc712b1de0805f9d683687e17b1ec2aba0b68","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","versionType":"semver","status":"unaffected"},{"version":"5.15.34","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.20","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.3","lessThanOrEqual":"5.17.*","versionType":"semver","status":"unaffected"},{"version":"5.18","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"48fab5bbef4092d925ab3214773ad12e68807223","lessThan":"c37b4cab3d97ef64b206fca4d9daabd9aff7356e","versionType":"git","status":"affected"},{"version":"48fab5bbef4092d925ab3214773ad12e68807223","lessThan":"95e2af01669c7a3cb7a933cefa06361f9db15059","versionType":"git","status":"affected"},{"version":"48fab5bbef4092d925ab3214773ad12e68807223","lessThan":"123bc712b1de0805f9d683687e17b1ec2aba0b68","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.16","status":"affected"},{"version":"0","lessThan":"5.16","versionType":"semver","status":"unaffected"},{"version":"5.16.20","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.3","lessThanOrEqual":"5.17.*","versionType":"semver","status":"unaffected"},{"version":"5.18","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

CVE Modified by kernel.org 6/17/2026 1:17:06 AM

Action

Type

Old Value

New Value

Added

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"13946d5a68efd11dd6af2f6ef4c908f6b00158a5","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"c37b4cab3d97ef64b206fca4d9daabd9aff7356e","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"95e2af01669c7a3cb7a933cefa06361f9db15059","versionType":"git","status":"affected"},{"version":"7bc04215a66b60e198aecaee8418f6d79fa19faa","lessThan":"123bc712b1de0805f9d683687e17b1ec2aba0b68","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/wireless/mediatek/mt76/mt76.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.16","status":"affected"},{"version":"0","lessThan":"4.16","versionType":"semver","status":"unaffected"},{"version":"5.15.34","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.20","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17.3","lessThanOrEqual":"5.17.*","versionType":"semver","status":"unaffected"},{"version":"5.18","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

Initial Analysis by NIST 10/14/2025 4:00:47 PM

Action	Type	New Value
Added	CVSS V3.1	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added	CWE	NVD-CWE-noinfo
Added	CPE Configuration	OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.16 up to (excluding) 5.16.20 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.17 up to (excluding) 5.17.3 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 4.16 up to (excluding) 5.15.34
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/123bc712b1de0805f9d683687e17b1ec2aba0b68 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/95e2af01669c7a3cb7a933cefa06361f9db15059 Types: Patch
Added	Reference Type	kernel.org: https://git.kernel.org/stable/c/c37b4cab3d97ef64b206fca4d9daabd9aff7356e Types: Patch

New CVE Received from kernel.org 2/26/2025 2:00:48 AM

Action	Type	New Value
Added	Description	In the Linux kernel, the following vulnerability has been resolved: mt76: fix monitor mode crash with sdio driver mt7921s driver may receive frames with fragment buffers. If there is a CTS packet received in monitor mode, the payload is 10 bytes only and need 6 bytes header padding after RXD buffer. However, only RXD in the first linear buffer, if we pull buffer size RXD-size+6 bytes with skb_pull(), that would trigger "BUG_ON(skb->len < skb->data_len)" in __skb_pull(). To avoid the nonlinear buffer issue, enlarge the RXD size from 128 to 256 to make sure all MCU operation in linear buffer. [ 52.007562] kernel BUG at include/linux/skbuff.h:2313! [ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 52.007987] pc : skb_pull+0x48/0x4c [ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common] [ 52.008361] Call trace: [ 52.008377] skb_pull+0x48/0x4c [ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c] [ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917] [ 52.008449] kthread+0x148/0x3ac [ 52.008466] ret_from_fork+0x10/0x30
Added	Reference	https://git.kernel.org/stable/c/123bc712b1de0805f9d683687e17b1ec2aba0b68
Added	Reference	https://git.kernel.org/stable/c/13946d5a68efd11dd6af2f6ef4c908f6b00158a5
Added	Reference	https://git.kernel.org/stable/c/95e2af01669c7a3cb7a933cefa06361f9db15059
Added	Reference	https://git.kernel.org/stable/c/c37b4cab3d97ef64b206fca4d9daabd9aff7356e

Quick Info

CVE Dictionary Entry:
CVE-2022-49112
NVD Published Date:
02/26/2025
NVD Last Modified:
08/12/2026
Source:
kernel.org

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2022-49112 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by kernel.org 8/12/2026 8:17:28 PM

CVE Modified by kernel.org 6/17/2026 1:17:06 AM

Initial Analysis by NIST 10/14/2025 4:00:47 PM

New CVE Received from kernel.org 2/26/2025 2:00:48 AM

Quick Info