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NVD / CVE Program· CNA Linux

CVE-2022-50885: RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.60% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Linux Linux 5b924632d84a60bc0c7fe6e9bbbce99d03908957, 6bb5a62bfd624039b05157745c234068508393a9, 7340ca9f782be6fbe3f64a134dc112772764f766.

Low priority for now. Upgrade to Linux Linux 5b924632d84a60bc0c7fe6e9bbbce99d03908957, 6bb5a62bfd624039b05157745c234068508393a9, 7340ca9f782be6fbe3f64a134dc112772764f766 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: RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed There is a null-ptr-deref when mount.cifs over rdma: BUG: KASAN: null-ptr-deref in rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe] Read of size 8 at addr 0000000000000018 by task mount.cifs/3046 CPU: 2 PID: 3046 Comm: mount.cifs Not tainted 6.1.0-rc5+ #62 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc3 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 kasan_report+0xad/0x130 rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe] execute_in_process_context+0x25/0x90 __rxe_cleanup+0x101/0x1d0 [rdma_rxe] rxe_create_qp+0x16a/0x180 [rdma_rxe] create_qp.part.0+0x27d/0x340 ib_create_qp_kernel+0x73/0x160 rdma_create_qp+0x100/0x230 _smbd_get_connection+0x752/0x20f0 smbd_get_connection+0x21/0x40 cifs_get_tcp_session+0x8ef/0xda0 mount_get_conns+0x60/0x750 cifs_mount+0x103/0xd00 cifs_smb3_do_mount+0x1dd/0xcb0 smb3_get_tree+0x1d5/0x300 vfs_get_tree+0x41/0xf0 path_mount+0x9b3/0xdd0 __x64_sys_mount+0x190/0x1d0 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 The root cause of the issue is the socket create failed in rxe_qp_init_req(). So move the reset rxe_qp_do_cleanup() after the NULL ptr check.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Dec 30, 2025
Updated
Oct 15, 2026
EPSS
0.6% · 49th percentile
CWE
—

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.6%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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-2022-50885

When you'll hear from us

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  • 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.

—

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

    • 4.8affected
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before ee24de095569935eba600f7735e8e8ddea5b418eaffected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before 7340ca9f782be6fbe3f64a134dc112772764f766affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before bd7106a6004f1077a365ca7f5a99c7a708e20714affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before 6bb5a62bfd624039b05157745c234068508393a9affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before f64f08b9e6fb305a25dd75329e06ae342b9ce336affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before 5b924632d84a60bc0c7fe6e9bbbce99d03908957affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before 821f9a18210f6b9fd6792471714c799607b25db4affected · git
    • 8700e3e7c4857d28ebaa824509934556da0b3e76 and later · before f67376d801499f4fa0838c18c1efcad8840e550daffected · git
    • before 4.8not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.4-16.1.4-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2022-50871Dec 30, 2025 · wifi: ath11k: Fix qmi_msg_handler data structure initialization
    31Monitor
  • ← EarlierCVE-2022-50880Dec 30, 2025 · wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state()
    35Monitor
  • Later →CVE-2023-54164Dec 30, 2025 · Bluetooth: ISO: fix iso_conn related locking and validity issues
    32Monitor

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 Linux5b924632d84a60bc0c7fe6e9bbbce99d03908957Vendor (CNA)
Linux Linux6bb5a62bfd624039b05157745c234068508393a9Vendor (CNA)
Linux Linux7340ca9f782be6fbe3f64a134dc112772764f766Vendor (CNA)
Linux Linux821f9a18210f6b9fd6792471714c799607b25db4Vendor (CNA)
Linux Linuxbd7106a6004f1077a365ca7f5a99c7a708e20714Vendor (CNA)
Linux Linuxee24de095569935eba600f7735e8e8ddea5b418eVendor (CNA)
Linux Linuxf64f08b9e6fb305a25dd75329e06ae342b9ce336Vendor (CNA)
Linux Linuxf67376d801499f4fa0838c18c1efcad8840e550dVendor (CNA)
debian:linux6.1.4-1 · 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.

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).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • 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
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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. SSVC exploitation— → none
  2. 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