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CVE-2022-50028 (GCVE-0-2022-50028)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-08-05 08:57
VLAI
Title
gadgetfs: ep_io - wait until IRQ finishes
Summary
In the Linux kernel, the following vulnerability has been resolved: gadgetfs: ep_io - wait until IRQ finishes after usb_ep_queue() if wait_for_completion_interruptible() is interrupted we need to wait until IRQ gets finished. Otherwise complete() from epio_complete() can corrupt stack.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 67a4874461422e633236a0286a01b483cd647113 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 118d967ce00a3d128bf731b35e4e2cb0facf5f00 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 77040efe59a141286d090c8a0d37c65a355a1832 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ca06b4cde54f8ec8be3aa53fd339bd56e62c12b3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 9ac14f973cb91f0c01776517e6d50981f32b8038 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 94aadba8d000d5de56af4ce8da3f334f21bf7a79 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2b06d5d97c0e067108a122986767731d40742138 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 04cb742d4d8f30dc2e83b46ac317eec09191c68e (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 4.9.326 , ≤ 4.9.* (semver)
Unaffected: 4.14.291 , ≤ 4.14.* (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.138 , ≤ 5.10.* (semver)
Unaffected: 5.15.63 , ≤ 5.15.* (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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              "value": "AV:L - The bug is in gadgetfs synchronous endpoint read/write (`ep_io` via `ep_read_iter`/`ep_write_iter` on `/dev/gadget/ep*`), a local syscall/file-descriptor path. It is not reached by USB host packet processing; prior gadgetfs/FunctionFS API bugs (e.g. CVE-2024-35815, CVE-2024-36894) are scored Local for the same reason.\nAC:L - The attacker controls both sides of the race: they drive sync ep I/O, deliver a signal to interrupt `wait_for_completion_interruptible()`, and can force endpoint teardown (e.g. close ep0 \u2192 `usb_gadget_unregister_driver` \u2192 `destroy_ep_files`). No condition outside attacker influence is required.\nPR:L - Gadgetfs endpoint nodes are created with configurable `default_uid`/`default_gid`/`default_perm`, and realistic gadget deployments (Android/embedded USB gadget daemons) expose ep files to unprivileged service uids, matching FunctionFS `uid=`/`gid=`/`fmode=` precedent. No init-namespace root is required once those nodes are openable.\nUI:N - The attacker opens the endpoint file, issues read/write, signals their own wait, and triggers teardown themselves. No separate victim action (mount, confirm, or open) is required beyond an already-active gadget deployment.\nS:U - Stack corruption from `complete()` on the freed on-stack completion stays within the same host kernel security authority. This is standard local kernel memory corruption, not a VM escape, IOMMU bypass, or sandbox boundary cross.\nC:H - `epio_complete()` calling `complete()` on a returned `DECLARE_COMPLETION_ONSTACK` writes into reused kernel stack memory; that stack use-after-free is memory corruption that can be leveraged for kernel information disclosure under CNA guidance.\nI:H - `complete()` performs locked writes (`done++`, waiter wakeups) into whatever reused the stack frame, corrupting kernel stack control/data state and enabling control-flow hijack. Out-of-lifetime stack writes are scored High integrity.\nA:H - Completing into freed stack reliably corrupts stack frames or hits hardening checks, causing kernel oops/panic. The attacker can retrigger the interrupt-and-teardown sequence for sustained denial of service."
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De lo contrario, la ejecuci\u00f3n de complete() desde epio_complete() puede da\u00f1ar la pila.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/usb/gadget/legacy/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"67a4874461422e633236a0286a01b483cd647113\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"118d967ce00a3d128bf731b35e4e2cb0facf5f00\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"77040efe59a141286d090c8a0d37c65a355a1832\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"ca06b4cde54f8ec8be3aa53fd339bd56e62c12b3\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"9ac14f973cb91f0c01776517e6d50981f32b8038\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"94aadba8d000d5de56af4ce8da3f334f21bf7a79\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"2b06d5d97c0e067108a122986767731d40742138\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"04cb742d4d8f30dc2e83b46ac317eec09191c68e\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/usb/gadget/legacy/inode.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2.6.12\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"2.6.12\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.9.326\",\"lessThanOrEqual\":\"4.9.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.14.291\",\"lessThanOrEqual\":\"4.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.256\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.211\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.138\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.63\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.19.4\",\"lessThanOrEqual\":\"5.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.9.326\",\"matchCriteriaId\":\"5B4EA906-CFF9-4D4A-AFD7-43AC02C77E48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.10\",\"versionEndExcluding\":\"4.14.291\",\"matchCriteriaId\":\"3BBC7E43-6161-4F21-977C-5BB7792C6C94\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.256\",\"matchCriteriaId\":\"6C47CDE3-B039-4AE5-B8E4-1DC820E473FF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.211\",\"matchCriteriaId\":\"B1C63D19-C08C-4308-A848-B2523C9275BD\"},{\"vulnerable\":true,\"c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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:42:15+00:00",
      "cve": "CVE-2022-50028",
      "id": "CVE-2022-50028",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "166",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: gadgetfs: ep_io - wait until IRQ finishes",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50028.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T02:02:00Z",
      "cve": "CVE-2022-50028",
      "id": "CVE-2022-50028",
      "initial_release_date": "2025-06-19T03:43:41Z",
      "product_status:known_affected": "497",
      "product_status:known_not_affected": "248",
      "product_status:recommended": "300",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50028",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50028.json",
      "version": "44"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.