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CVE-2022-48715· NVD / CVE Program· CNA Linux

scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 003bcee66a8f0e76157eb3af369c173151901d97, 2d24336c7214b281b51860e54783dfc65f1248df, 2f5a1ac68bdf2899ce822ab845081922ea8c588e.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 003bcee66a8f0e76157eb3af369c173151901d97, 2d24336c7214b281b51860e54783dfc65f1248df, 2f5a1ac68bdf2899ce822ab845081922ea8c588e or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe Running tests with a debug kernel shows that bnx2fc_recv_frame() is modifying the per_cpu lport stats counters in a non-mpsafe way. Just boot a debug kernel and run the bnx2fc driver with the hardware enabled. [ 1391.699147] BUG: using smp_processor_id() in preemptible [00000000] code: bnx2fc_ [ 1391.699160] caller is bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699174] CPU: 2 PID: 4355 Comm: bnx2fc_l2_threa Kdump: loaded Tainted: G B [ 1391.699180] Hardware name: HP ProLiant DL120 G7, BIOS J01 07/01/2013 [ 1391.699183] Call Trace: [ 1391.699188] dump_stack_lvl+0x57/0x7d [ 1391.699198] check_preemption_disabled+0xc8/0xd0 [ 1391.699205] bnx2fc_recv_frame+0xbf9/0x1760 [bnx2fc] [ 1391.699215] ? do_raw_spin_trylock+0xb5/0x180 [ 1391.699221] ? bnx2fc_npiv_create_vports.isra.0+0x4e0/0x4e0 [bnx2fc] [ 1391.699229] ? bnx2fc_l2_rcv_thread+0xb7/0x3a0 [bnx2fc] [ 1391.699240] bnx2fc_l2_rcv_thread+0x1af/0x3a0 [bnx2fc] [ 1391.699250] ? bnx2fc_ulp_init+0xc0/0xc0 [bnx2fc] [ 1391.699258] kthread+0x364/0x420 [ 1391.699263] ? _raw_spin_unlock_irq+0x24/0x50 [ 1391.699268] ? set_kthread_struct+0x100/0x100 [ 1391.699273] ret_from_fork+0x22/0x30 Restore the old get_cpu/put_cpu code with some modifications to reduce the size of the critical section.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 20, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 10th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-48715

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel3.16.1 and later · before 4.9.300
  • linux linux kernel4.10 and later · before 4.14.265
  • linux linux kernel4.15 and later · before 4.19.228
  • linux linux kernel4.20 and later · before 5.4.178
  • linux linux kernel5.5 and later · before 5.10.99
  • linux linux kernel5.11 and later · before 5.15.22
  • linux linux kernel5.16 and later · before 5.16.8
  • linux linux kernel3.16
  • linux linux kernel5.17

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.16affected
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 3a345198a7c2d1db2526dc60b77052f75de019d3affected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 471085571f926a1fe6b1bed095638994dbf23990affected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 003bcee66a8f0e76157eb3af369c173151901d97affected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 53e4f71763c61a557283eb43301efd671922d1e8affected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before ec4334152dae175dbd8fd5bde1d2139bbe7b42d0affected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 2f5a1ac68bdf2899ce822ab845081922ea8c588eaffected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 2d24336c7214b281b51860e54783dfc65f1248dfaffected · git
    • d576a5e80cd07ea7049f8fd7b303c14df7b5d7d2 and later · before 936bd03405fc83ba039d42bc93ffd4b88418f1d3affected · git
    • before 3.16not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.16.10-15.16.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-48713Jun 20, 2024 · perf/x86/intel/pt: Fix crash with stop filters in single-range mode
    22Monitor
  • ← EarlierCVE-2022-48714Jun 20, 2024 · bpf: Use VM_MAP instead of VM_ALLOC for ringbuf
    28Monitor
  • Later →CVE-2022-48716Jun 20, 2024 · ASoC: codecs: wcd938x: fix incorrect used of portid
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux003bcee66a8f0e76157eb3af369c173151901d97Vendor (CNA)
Linux Linux2d24336c7214b281b51860e54783dfc65f1248dfVendor (CNA)
Linux Linux2f5a1ac68bdf2899ce822ab845081922ea8c588eVendor (CNA)
Linux Linux3a345198a7c2d1db2526dc60b77052f75de019d3Vendor (CNA)
Linux Linux471085571f926a1fe6b1bed095638994dbf23990Vendor (CNA)
Linux Linux53e4f71763c61a557283eb43301efd671922d1e8Vendor (CNA)
Linux Linux936bd03405fc83ba039d42bc93ffd4b88418f1d3Vendor (CNA)
Linux Linuxec4334152dae175dbd8fd5bde1d2139bbe7b42d0Vendor (CNA)
debian:linux5.16.10-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records