{"id":"CVE-2026-43429","state":"PUBLISHED","title":"USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts\n\nThe usbtmc driver accepts timeout values specified by the user in an\nioctl command, and uses these timeouts for some usb_bulk_msg() calls.\nSince the user can specify arbitrarily long timeouts and\nusb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable()\ninstead to avoid the possibility of the user hanging a kernel thread\nindefinitely.","publishedAt":"2026-05-08T14:22:01.739Z","updatedAt":"2026-05-11T22:24:25.178Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"e14a0dcdf468c3ad616bb06696c7c64c36e736d8","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"7fa72c369c23c27d1f64883c1e276af950557fb1","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"72c0a063489be183cfb99e7050aaef503bdb6449","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"39bd4097292fd8564cf2cfba9356f8ab11e38d12","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"d4f1c45bdff3f393f9ab7e76795901c442b9eb76","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"7784caa413a89487dd14dd5c41db8753483b2acb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/class/usbtmc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.167","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.130","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/class/usbtmc.c"]}],"references":["https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8","https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1","https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449","https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12","https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d","https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a","https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76","https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43429.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43429","state":"PUBLISHED","datePublished":"2026-05-08T14:22:01.739Z","dateUpdated":"2026-05-11T22:24:25.178Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.009Z"},"containers":{"cna":{"title":"USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts\n\nThe usbtmc driver accepts timeout values specified by the user in an\nioctl command, and uses these timeouts for some usb_bulk_msg() calls.\nSince the user can specify arbitrarily long timeouts and\nusb_bulk_msg() uses unkillable waits, call usb_bulk_msg_killable()\ninstead to avoid the possibility of the user hanging a kernel thread\nindefinitely."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"e14a0dcdf468c3ad616bb06696c7c64c36e736d8","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"7fa72c369c23c27d1f64883c1e276af950557fb1","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"72c0a063489be183cfb99e7050aaef503bdb6449","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"39bd4097292fd8564cf2cfba9356f8ab11e38d12","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"d4f1c45bdff3f393f9ab7e76795901c442b9eb76","versionType":"git"},{"version":"048c6d88a0214757926f264823829e79154fcd4f","status":"affected","lessThan":"7784caa413a89487dd14dd5c41db8753483b2acb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/class/usbtmc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.167","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.130","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/class/usbtmc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e14a0dcdf468c3ad616bb06696c7c64c36e736d8"},{"url":"https://git.kernel.org/stable/c/7fa72c369c23c27d1f64883c1e276af950557fb1"},{"url":"https://git.kernel.org/stable/c/72c0a063489be183cfb99e7050aaef503bdb6449"},{"url":"https://git.kernel.org/stable/c/39bd4097292fd8564cf2cfba9356f8ab11e38d12"},{"url":"https://git.kernel.org/stable/c/0535f84cb94c9d8bcba0a2a5b3fac81b7d97235d"},{"url":"https://git.kernel.org/stable/c/6cb7dc91f057dd8ce44f6caa2995d8e22784ed0a"},{"url":"https://git.kernel.org/stable/c/d4f1c45bdff3f393f9ab7e76795901c442b9eb76"},{"url":"https://git.kernel.org/stable/c/7784caa413a89487dd14dd5c41db8753483b2acb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:24:25.178Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}