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CVE-2026-63896

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix integer underflow in WebUSB GET_URL handling The WebUSB GET_URL handler in composite_setup() narrows landing_page_length to fit the host-supplied wLength using landing_page_length = w_length - WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH + landing_page_offset; If wLength is smaller than WEBUSB_URL_DESCRIPTOR_HEADER_LENGTH the unsigned subtraction wraps, and the subsequent memcpy(url_descriptor->URL,
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:115fd49c936468940aaeb6c30f34ee0d22d86cbcae87715cb1fad600e2e5fa24
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/composite.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"le…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/composite.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"046870ff6b6f7b743c953c061043a9b30700d491","status":"affected","version":"93c473948c588978cd55d9a3adad8b3e8057aa21","versionType":"git"},{"lessThan":"f5869dfaa89854dcf34121036294d42d6c7acb8f","status":"affected","version":"93c473948c588978cd55d9a3adad8b3e8057aa21","versionType":"git"},{"lessThan":"f8f5a8f48c7cae3fac85e04b593bd47939f9725f","status":"affected","version":"93c473948c58897…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/gadget/composite.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"le…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/composite.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"046870ff6b6f7b743c953c061043a9b30700d491","status":"affected","version":"93c473948c588978cd55d9a3adad8b3e8057aa21","versionType":"git"},{"lessThan":"f5869dfaa89854dcf34121036294d42d6c7acb8f","status":"affected","version":"93c473948c588978cd55d9a3adad8b3e8057aa21","versionType":"git"},{"lessThan":"f8f5a8f48c7cae3fac85e04b593bd47939f9725f","status":"affected","version":"93c473948c58897…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/046870ff6b6f7b743c953c061043a9b30700d491"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/6c5dbc104dadd79fc2923497c20bae759a18758c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/a20f0ccf45708af6e063c7234c215d364b00de25"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/f5869dfaa89854dcf34121036294d42d6c7acb8f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f8f5a8f48c7cae3fac85e04b593bd47939f9725f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:23766058b011faefe4f51da46c1aa08125e1e0f2eb8f2650a91f4f9c1c6d23a8 · sha256:5b8343a76d048145… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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