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NVD / CVE Program· CNA Linux

CVE-2022-49548: bpf: Fix potential array overflow in bpf_trampoline_get_progs()

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.29% (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 32c4559c61652f24c9fdd5440342196fe37453bc, 4f8897bcc20b9ae44758e0572538d741ab66f0dc, 7f845de2863334bed4f362e95853f5e7bc323737.

Low priority for now. Upgrade to Linux Linux 32c4559c61652f24c9fdd5440342196fe37453bc, 4f8897bcc20b9ae44758e0572538d741ab66f0dc, 7f845de2863334bed4f362e95853f5e7bc323737 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: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Feb 26, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 22th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

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.

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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 kernel5.7 and later · before 5.10.120
  • linux linux kernel5.11 and later · before 5.15.45
  • linux linux kernel5.16 and later · before 5.17.13
  • linux linux kernel5.18 and later · before 5.18.2

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

    • 5.7affected
    • 88fd9e5352fe05f7fe57778293aebd4cd106960b and later · before 7f845de2863334bed4f362e95853f5e7bc323737affected · git
    • 88fd9e5352fe05f7fe57778293aebd4cd106960b and later · before e36452d5da6325df7c10cffc60a9e68d21e2606daffected · git
    • 88fd9e5352fe05f7fe57778293aebd4cd106960b and later · before 32c4559c61652f24c9fdd5440342196fe37453bcaffected · git
    • 88fd9e5352fe05f7fe57778293aebd4cd106960b and later · before 4f8897bcc20b9ae44758e0572538d741ab66f0dcaffected · git
    • 88fd9e5352fe05f7fe57778293aebd4cd106960b and later · before a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8daffected · git
    • before 5.7not affected · semver
    • 5.10.120 and later · up to and including 5.10.*not affected · semver
    • 5.15.45 and later · up to and including 5.15.*not affected · semver
    • 5.17.13 and later · up to and including 5.17.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.18.2-15.18.2-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2022-49546Feb 26, 2025 · x86/kexec: fix memory leak of elf header buffer
    22Monitor
  • ← EarlierCVE-2022-49547Feb 26, 2025 · btrfs: fix deadlock between concurrent dio writes when low on free data space
    22Monitor
  • Later →CVE-2022-49549Feb 26, 2025 · x86/MCE/AMD: Fix memory leak when threshold_create_bank() fails
    22Monitor

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 Linux32c4559c61652f24c9fdd5440342196fe37453bcVendor (CNA)
Linux Linux4f8897bcc20b9ae44758e0572538d741ab66f0dcVendor (CNA)
Linux Linux7f845de2863334bed4f362e95853f5e7bc323737Vendor (CNA)
Linux Linuxa2aa95b71c9bbec793b5c5fa50f0a80d882b3e8dVendor (CNA)
Linux Linuxe36452d5da6325df7c10cffc60a9e68d21e2606dVendor (CNA)
debian:linux5.18.2-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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.

  • CVE-2021-47548278 days apartethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
    39Monitor
  • CVE-2026-64018508 days apartnet: mana: validate rx_req_idx to prevent out-of-bounds array access
    37Monitor
  • CVE-2026-23246385 days apartwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
    35Monitor
  • CVE-2026-43110434 days apartwifi: brcmfmac: validate bsscfg indices in IF events
    35Monitor
  • CVE-2026-43172434 days apartwifi: iwlwifi: fix 22000 series SMEM parsing
    35Monitor
  • CVE-2022-491860 days apartclk: visconti: prevent array overflow in visconti_clk_register_gates()
    31Monitor

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).

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

Weakness class (CWE)

CWE-129 · Improper Validation of Array Index

CVSS vector

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records