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CVE-2026-63956

In the Linux kernel, the following vulnerability has been resolved: USB: serial: cypress_m8: fix memory corruption with small endpoint Make sure that the interrupt-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption or NULL-pointer dereference should a malicious device report a smaller size.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e11f61b897c9e8b6d62f9e8dfb4c7bd88ae4406d988c3310816a41b113123569
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/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.26"},{"lessThan":"2.6.26","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semv…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4fcb22218f0a7229b7ce3b3952fb644def293fa5","status":"affected","version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","versionType":"git"},{"lessThan":"ad3d1628a46134276546d7a12fedf04be9979158","status":"affected","version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","versionType":"git"},{"lessThan":"52e18ae0c47c5c89e18fcd8022f287f7cc8802ec","status":"affected","version":"3416eaa1f8f8d5…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.26"},{"lessThan":"2.6.26","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semv…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/serial/cypress_m8.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4fcb22218f0a7229b7ce3b3952fb644def293fa5","status":"affected","version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","versionType":"git"},{"lessThan":"ad3d1628a46134276546d7a12fedf04be9979158","status":"affected","version":"3416eaa1f8f8d516b77de514e14cf8da256d28fb","versionType":"git"},{"lessThan":"52e18ae0c47c5c89e18fcd8022f287f7cc8802ec","status":"affected","version":"3416eaa1f8f8d5…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/affected/0

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1ef25704bd3b625fd151c09feee459479f71ee64"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/284105c40fc31fff90cdab8a0377aaeb92f87f0e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/4bcaa59f403dbde6328604a500d65ee8d40975d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/4fcb22218f0a7229b7ce3b3952fb644def293fa5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/52e18ae0c47c5c89e18fcd8022f287f7cc8802ec"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6c13f3bb652bc8665e709ba07122612586aea648"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/ad3d1628a46134276546d7a12fedf04be9979158"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e1a9d791fd66ab2431b9e6f6f835823809869047"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9aaf2a39f0678860bee8faed14bbcaf142c8931efe846dc1abda3bb0685bf73f · sha256:c4f7dd34c24b12fc… · /containers/cna/references/7

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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