NVD

CVE-2022-48985 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix race on per-CQ variable napi work_done After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be cleared, and another CPU can start napi thread and access per-CQ variable, cq->work_done. If the other thread (for example, from busy_poll) sets it to a value >= budget, this thread will continue to run when it should stop, and cause memory corruption and panic. To fix this issue, save the per-CQ work_done variable in a local variable before napi_complete_done(), so it won't be corrupted by a possible concurrent thread after napi_complete_done(). Also, add a flag bit to advertise to the NIC firmware: the NAPI work_done variable race is fixed, so the driver is able to reliably support features like busy_poll.

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: 4.7 MEDIUM

Vector: CVSS:3.1/AV:L/AC:H/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/18010ff776fa42340efc428b3ea6d19b3e7c7b21	kernel.org	Patch
https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3	kernel.org	Patch
https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de	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 6/17/2026 1:16:46 AM

Action

Type

Old Value

New Value

Added

Affected

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["drivers/net/ethernet/microsoft/mana/gdma.h","drivers/net/ethernet/microsoft/mana/mana_en.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"e1b5683ff62e7b328317aec08869495992053e9d","lessThan":"fe50a9bbeb1f042e756c5cfa7708112c944368de","versionType":"git","status":"affected"},{"version":"e1b5683ff62e7b328317aec08869495992053e9d","lessThan":"6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3","versionType":"git","status":"affected"},{"version":"e1b5683ff62e7b328317aec08869495992053e9d","lessThan":"18010ff776fa42340efc428b3ea6d19b3e7c7b21","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["drivers/net/ethernet/microsoft/mana/gdma.h","drivers/net/ethernet/microsoft/mana/mana_en.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","versionType":"semver","status":"unaffected"},{"version":"5.15.83","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.0.13","lessThanOrEqual":"6.0.*","versionType":"semver","status":"unaffected"},{"version":"6.1","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

Initial Analysis by NIST 11/07/2024 2:35:06 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Added	CWE		NIST NVD-CWE-noinfo
Added	CPE Configuration		OR cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.15 up to (excluding) 5.15.83 cpe:2.3:o:linux:linux_kernel::::::::* versions from (including) 5.16 up to (excluding) 6.0.13 cpe:2.3:o:linux:linux_kernel:6.1:rc1::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc2::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc3::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc4::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc5::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc6::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc7::::::* cpe:2.3:o:linux:linux_kernel:6.1:rc8::::::*
Changed	Reference Type	https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21 No Types Assigned	https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3 No Types Assigned	https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de No Types Assigned	https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de Patch

New CVE Received from kernel.org 10/21/2024 4:15:10 PM

Action	Type	New Value
Added	Description	In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix race on per-CQ variable napi work_done After calling napi_complete_done(), the NAPIF_STATE_SCHED bit may be cleared, and another CPU can start napi thread and access per-CQ variable, cq->work_done. If the other thread (for example, from busy_poll) sets it to a value >= budget, this thread will continue to run when it should stop, and cause memory corruption and panic. To fix this issue, save the per-CQ work_done variable in a local variable before napi_complete_done(), so it won't be corrupted by a possible concurrent thread after napi_complete_done(). Also, add a flag bit to advertise to the NIC firmware: the NAPI work_done variable race is fixed, so the driver is able to reliably support features like busy_poll.
Added	Reference	kernel.org https://git.kernel.org/stable/c/18010ff776fa42340efc428b3ea6d19b3e7c7b21 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/6740d8572ccd1bca50d8a1ca2bedc333f50ed5f3 [No types assigned]
Added	Reference	kernel.org https://git.kernel.org/stable/c/fe50a9bbeb1f042e756c5cfa7708112c944368de [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2022-48985
NVD Published Date:
10/21/2024
NVD Last Modified:
06/17/2026
Source:
kernel.org

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2022-48985 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 CISA-ADP 6/17/2026 1:16:46 AM

CVE Modified by kernel.org 6/17/2026 1:16:46 AM

Initial Analysis by NIST 11/07/2024 2:35:06 PM

New CVE Received from kernel.org 10/21/2024 4:15:10 PM

Quick Info