{"id":"CVE-2026-43103","state":"PUBLISHED","title":"net: lapbether: handle NETDEV_PRE_TYPE_CHANGE","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lapbether: handle NETDEV_PRE_TYPE_CHANGE\n\nlapbeth_data_transmit() expects the underlying device type\nto be ARPHRD_ETHER.\n\nReturning NOTIFY_BAD from lapbeth_device_event() makes sure\nbonding driver can not break this expectation.","publishedAt":"2026-05-06T07:40:32.357Z","updatedAt":"2026-06-01T16:14:48.824Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"698642a01d53107ce9b3fc08bd801284af478a2b","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"ffc5ed59f6dc87c51e8775f002619310225742e8","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"a10570973619cba9dfa6d723177251b846fae587","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"363a38044b8cd5b496d241651a1fb666e7c5fe3e","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"328bb2cff5c2ed973f595ded769e15f4b7a117be","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"63851f60781aa89258c8f0952cd13940aab0888e","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"b117056768ab7deb434e7d72065e48d2083a0c2a","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"b120e4432f9f56c7103133d6a11245e617695adb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wan/lapbether.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.24","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.24","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","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/net/wan/lapbether.c"]}],"references":["https://git.kernel.org/stable/c/698642a01d53107ce9b3fc08bd801284af478a2b","https://git.kernel.org/stable/c/ffc5ed59f6dc87c51e8775f002619310225742e8","https://git.kernel.org/stable/c/a10570973619cba9dfa6d723177251b846fae587","https://git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e","https://git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be","https://git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e","https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a","https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43103.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43103","state":"PUBLISHED","datePublished":"2026-05-06T07:40:32.357Z","dateUpdated":"2026-06-01T16:14:48.824Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.984Z"},"containers":{"cna":{"title":"net: lapbether: handle NETDEV_PRE_TYPE_CHANGE","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lapbether: handle NETDEV_PRE_TYPE_CHANGE\n\nlapbeth_data_transmit() expects the underlying device type\nto be ARPHRD_ETHER.\n\nReturning NOTIFY_BAD from lapbeth_device_event() makes sure\nbonding driver can not break this expectation."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"698642a01d53107ce9b3fc08bd801284af478a2b","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"ffc5ed59f6dc87c51e8775f002619310225742e8","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"a10570973619cba9dfa6d723177251b846fae587","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"363a38044b8cd5b496d241651a1fb666e7c5fe3e","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"328bb2cff5c2ed973f595ded769e15f4b7a117be","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"63851f60781aa89258c8f0952cd13940aab0888e","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"b117056768ab7deb434e7d72065e48d2083a0c2a","versionType":"git"},{"version":"872254dd6b1f80cb95ee9e2e22980888533fc293","status":"affected","lessThan":"b120e4432f9f56c7103133d6a11245e617695adb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wan/lapbether.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.24","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.24","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","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/net/wan/lapbether.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/698642a01d53107ce9b3fc08bd801284af478a2b"},{"url":"https://git.kernel.org/stable/c/ffc5ed59f6dc87c51e8775f002619310225742e8"},{"url":"https://git.kernel.org/stable/c/a10570973619cba9dfa6d723177251b846fae587"},{"url":"https://git.kernel.org/stable/c/363a38044b8cd5b496d241651a1fb666e7c5fe3e"},{"url":"https://git.kernel.org/stable/c/328bb2cff5c2ed973f595ded769e15f4b7a117be"},{"url":"https://git.kernel.org/stable/c/63851f60781aa89258c8f0952cd13940aab0888e"},{"url":"https://git.kernel.org/stable/c/b117056768ab7deb434e7d72065e48d2083a0c2a"},{"url":"https://git.kernel.org/stable/c/b120e4432f9f56c7103133d6a11245e617695adb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-01T16:14:48.824Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.12.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.18.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.19.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}