# CVE-2022-50779: CVE-2022-50779

Status: published. Published: 2025-12-24. Updated: 2026-11-10.

In the Linux kernel, the following vulnerability has been resolved:

orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()

When insert and remove the orangefs module, then debug_help_string will
be leaked:

  unreferenced object 0xffff8881652ba000 (size 4096):
    comm "insmod", pid 1701, jiffies 4294893639 (age 13218.530s)
    hex dump (first 32 bytes):
      43 6c 69 65 6e 74 20 44 65 62 75 67 20 4b 65 79  Client Debug Key
      77 6f 72 64 73 20 61 72 65 20 75 6e 6b 6e 6f 77  words are unknow
    backtrace:
      [<0000000004e6f8e3>] kmalloc_trace+0x27/0xa0
      [<0000000006f75d85>] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs]
      [<0000000091270a2a>] _sub_I_65535_1+0x57/0xf70 [crc_itu_t]
      [<000000004b1ee1a3>] do_one_initcall+0x87/0x2a0
      [<000000001d0614ae>] do_init_module+0xdf/0x320
      [<00000000efef068c>] load_module+0x2f98/0x3330
      [<000000006533b44d>] __do_sys_finit_module+0x113/0x1b0
      [<00000000a0da6f99>] do_syscall_64+0x35/0x80
      [<000000007790b19b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0

When remove the module, should always free debug_help_string. Should
always free the allocated buffer when change the free_debug_help_string.

## Remediation

No remediation reported in collected sources

## Affected products and versions

Not reported in collected sources.

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/19be31668552a198e887762e25bdcc560800ecb4 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/2e7c09121064df93c58bbc49d3d0f608d3f584bd (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/39529b79b023713d4f2d3479dc0ca43ba99df726 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/3fc221d9a16339a913a0341d3efc7fef339073e1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/44d3eac26a5e5268d11cc342dc202b0d31505c0a (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/b8affa0c6405ee968dcb6030bee2cf719a464752 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/ba9d3b9cec20957fd86bb1bf525b4ea8b64b2dea (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/d23417a5bf3a3afc55de5442eb46e1e60458b0a1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

- https://git.kernel.org/stable/c/f2b8a6aac561a49fe02c99683c40a8b87a9f68fc (416baaa9-dc9f-4396-8d5f-8c081fb06d67)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-50779; retrieved 2026-11-10; source updated 2026-11-10

Revision: 26640ddef4eb8e9d7e0e45b66e8e6c3dab705a8381a65c5b709a7e318abc8a68

Canonical: https://y2.dev/cve/CVE-2022-50779

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.