Skip to content
Noroxi
NVD / CVE Program· CNA Linux

CVE-2022-50133: usb: xhci_plat_remove: avoid NULL dereference

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: 0.20% (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 371a8af4f26e06b4d51d893b4436f520b48d07fd, d7de14d74d6551f0d097430f9893ce82ad17e5b8.

Low priority for now. Upgrade to Linux Linux 371a8af4f26e06b4d51d893b4436f520b48d07fd, d7de14d74d6551f0d097430f9893ce82ad17e5b8 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: usb: xhci_plat_remove: avoid NULL dereference Since commit 4736ebd7fcaff1eb8481c140ba494962847d6e0a ("usb: host: xhci-plat: omit shared hcd if either root hub has no ports") xhci->shared_hcd can be NULL, which causes the following Oops on reboot: [ 710.124450] systemd-shutdown[1]: Rebooting. [ 710.298861] xhci-hcd xhci-hcd.2.auto: remove, state 4 [ 710.304217] usb usb3: USB disconnect, device number 1 [ 710.317441] xhci-hcd xhci-hcd.2.auto: USB bus 3 deregistered [ 710.323280] xhci-hcd xhci-hcd.2.auto: remove, state 1 [ 710.328401] usb usb2: USB disconnect, device number 1 [ 710.333515] usb 2-3: USB disconnect, device number 2 [ 710.467649] xhci-hcd xhci-hcd.2.auto: USB bus 2 deregistered [ 710.475450] Unable to handle kernel NULL pointer dereference at virtual address 00000000000003b8 [ 710.484425] Mem abort info: [ 710.487265] ESR = 0x0000000096000004 [ 710.491060] EC = 0x25: DABT (current EL), IL = 32 bits [ 710.496427] SET = 0, FnV = 0 [ 710.499525] EA = 0, S1PTW = 0 [ 710.502716] FSC = 0x04: level 0 translation fault [ 710.507648] Data abort info: [ 710.510577] ISV = 0, ISS = 0x00000004 [ 710.514462] CM = 0, WnR = 0 [ 710.517480] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008b0050000 [ 710.523976] [00000000000003b8] pgd=0000000000000000, p4d=0000000000000000 [ 710.530961] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 710.536551] Modules linked in: rfkill input_leds snd_soc_simple_card snd_soc_simple_card_utils snd_soc_nau8822 designware_i2s snd_soc_core dw_hdmi_ahb_audio snd_pcm_dmaengine arm_ccn panfrost ac97_bus gpu_sched snd_pcm at24 fuse configfs sdhci_of_dwcmshc sdhci_pltfm sdhci nvme led_class mmc_core nvme_core bt1_pvt polynomial tp_serio snd_seq_midi snd_seq_midi_event snd_seq snd_timer snd_rawmidi snd_seq_device snd soundcore efivarfs ipv6 [ 710.575286] CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 5.19.0-rc7-00043-gfd8619f4fd54 #1 [ 710.583822] Hardware name: T-Platforms TF307-MB/BM1BM1-A, BIOS 5.6 07/06/2022 [ 710.590972] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 710.597949] pc : usb_remove_hcd+0x34/0x1e4 [ 710.602067] lr : xhci_plat_remove+0x74/0x140 [ 710.606351] sp : ffff800009f3b7c0 [ 710.609674] x29: ffff800009f3b7c0 x28: ffff000800960040 x27: 0000000000000000 [ 710.616833] x26: ffff800008dc22a0 x25: 0000000000000000 x24: 0000000000000000 [ 710.623992] x23: 0000000000000000 x22: ffff000805465810 x21: ffff000805465800 [ 710.631149] x20: ffff000800f80000 x19: 0000000000000000 x18: ffffffffffffffff [ 710.638307] x17: ffff000805096000 x16: ffff00080633b800 x15: ffff000806537a1c [ 710.645465] x14: 0000000000000001 x13: 0000000000000000 x12: ffff00080378d6f0 [ 710.652621] x11: ffff00080041a900 x10: ffff800009b204e8 x9 : ffff8000088abaa4 [ 710.659779] x8 : ffff000800960040 x7 : ffff800009409000 x6 : 0000000000000001 [ 710.666936] x5 : ffff800009241000 x4 : ffff800009241440 x3 : 0000000000000000 [ 710.674094] x2 : ffff000800960040 x1 : ffff000800960040 x0 : 0000000000000000 [ 710.681251] Call trace: [ 710.683704] usb_remove_hcd+0x34/0x1e4 [ 710.687467] xhci_plat_remove+0x74/0x140 [ 710.691400] platform_remove+0x34/0x70 [ 710.695165] device_remove+0x54/0x90 [ 710.698753] device_release_driver_internal+0x200/0x270 [ 710.703992] device_release_driver+0x24/0x30 [ 710.708273] bus_remove_device+0xe0/0x16c [ 710.712293] device_del+0x178/0x390 [ 710.715797] platform_device_del.part.0+0x24/0x90 [ 710.720514] platform_device_unregister+0x30/0x50 [ 710.725232] dwc3_host_exit+0x20/0x30 [ 710.728907] dwc3_remove+0x174/0x1b0 [ 710.732494] platform_remove+0x34/0x70 [ 710.736254] device_remove+0x54/0x90 [ 710.739840] device_release_driver_internal+0x200/0x270 [ 710.745078] device_release_driver+0x24/0x30 [ 710.749359] bus_remove_device+0xe0/0x16c [ 710.753380] device_del+0x178/0x390 [ 710.756881] platform_device_del.part ---truncated---

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th percentile

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%

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-2022-50133

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

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

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.

We use this product, ask for help

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 kernel5.19 and later · before 5.19.2

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

    • 5.19affected
    • 4736ebd7fcaff1eb8481c140ba494962847d6e0a and later · before 371a8af4f26e06b4d51d893b4436f520b48d07fdaffected · git
    • 4736ebd7fcaff1eb8481c140ba494962847d6e0a and later · before d7de14d74d6551f0d097430f9893ce82ad17e5b8affected · git
    • before 5.19not affected · semver
    • 5.19.2 and later · up to and including 5.19.*not affected · semver
    • 6.0 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.2-16.0.2-1

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-2022-50131Jun 18, 2025 · HID: mcp2221: prevent a buffer overflow in mcp_smbus_write()
    31Monitor
  • ← EarlierCVE-2022-50132Jun 18, 2025 · usb: cdns3: change place of 'priv_ep' assignment in cdns3_gadget_ep_dequeue(), cdns3_gadget_ep_enable()
    22Monitor
  • Later →CVE-2022-50134Jun 18, 2025 · RDMA/hfi1: fix potential memory leak in setup_base_ctxt()
    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 Linux371a8af4f26e06b4d51d893b4436f520b48d07fdVendor (CNA)
Linux Linuxd7de14d74d6551f0d097430f9893ce82ad17e5b8Vendor (CNA)
debian:linux6.0.2-1 · 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.

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).

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)

CWE-476 · NULL Pointer Dereference

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 (1 more)

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

All records