{"id":"CVE-2026-99045","state":"PUBLISHED","title":"ibmveth: h_free logical LAN on open-fail after register","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: h_free logical LAN on open-fail after register\n\nibmveth_open() registers the logical LAN, then allocates the RX\nbuffer pools. A pool failure jumps to out_free_buffer_pools without\nh_free_logical_lan(), so PHYP still owns the buffer-list page when\nit is unmapped. request_irq() failure already issued the hypercall\nbefore taking the same label.\n\nMove that h_free to the shared post-register unwind so both paths\nderegister before the buffer list is unmapped.","publishedAt":"2026-10-23T12:22:09.352Z","updatedAt":"2026-10-30T12:41:16.971Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"073df7871a7023298ce27cfa518fbc30cc155651","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"7bd67d324d952101b3431c796d79f5e329bba159","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"eae138e880686ce19879aa0d158fa3c73516f632","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"decb4d4ead2c71ef698727734ab5024a872eb372","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"c54bbdf6f0731102a4bf7f5e4ee535b3ea415996","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"a065bd31ec462f6f9c267026b708dd020f122723","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"d24fdec1413c656d29298097926e77542785ca0c","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"af0524bf4ce1a4cbd2946aa81751582951cfcab5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmveth.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.13","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmveth.c"]}],"references":["https://git.kernel.org/stable/c/073df7871a7023298ce27cfa518fbc30cc155651","https://git.kernel.org/stable/c/7bd67d324d952101b3431c796d79f5e329bba159","https://git.kernel.org/stable/c/eae138e880686ce19879aa0d158fa3c73516f632","https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372","https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996","https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723","https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c","https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5"],"weaknesses":[],"ingestedAt":"2026-10-30T13:02:04.640Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/99xxx/CVE-2026-99045.json","commit":"cb14bf1b43b0c9f05f7f40eae2246263fd430780","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99045","state":"PUBLISHED","datePublished":"2026-10-23T12:22:09.352Z","dateUpdated":"2026-10-30T12:41:16.971Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.387Z"},"containers":{"cna":{"title":"ibmveth: h_free logical LAN on open-fail after register","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nibmveth: h_free logical LAN on open-fail after register\n\nibmveth_open() registers the logical LAN, then allocates the RX\nbuffer pools. A pool failure jumps to out_free_buffer_pools without\nh_free_logical_lan(), so PHYP still owns the buffer-list page when\nit is unmapped. request_irq() failure already issued the hypercall\nbefore taking the same label.\n\nMove that h_free to the shared post-register unwind so both paths\nderegister before the buffer list is unmapped."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"073df7871a7023298ce27cfa518fbc30cc155651","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"7bd67d324d952101b3431c796d79f5e329bba159","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"eae138e880686ce19879aa0d158fa3c73516f632","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"decb4d4ead2c71ef698727734ab5024a872eb372","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"c54bbdf6f0731102a4bf7f5e4ee535b3ea415996","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"a065bd31ec462f6f9c267026b708dd020f122723","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"d24fdec1413c656d29298097926e77542785ca0c","versionType":"git"},{"version":"d43732ce021f4244a4c53a45d57ad0c13c30ed94","status":"affected","lessThan":"af0524bf4ce1a4cbd2946aa81751582951cfcab5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmveth.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.13","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/ibm/ibmveth.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/073df7871a7023298ce27cfa518fbc30cc155651"},{"url":"https://git.kernel.org/stable/c/7bd67d324d952101b3431c796d79f5e329bba159"},{"url":"https://git.kernel.org/stable/c/eae138e880686ce19879aa0d158fa3c73516f632"},{"url":"https://git.kernel.org/stable/c/decb4d4ead2c71ef698727734ab5024a872eb372"},{"url":"https://git.kernel.org/stable/c/c54bbdf6f0731102a4bf7f5e4ee535b3ea415996"},{"url":"https://git.kernel.org/stable/c/a065bd31ec462f6f9c267026b708dd020f122723"},{"url":"https://git.kernel.org/stable/c/d24fdec1413c656d29298097926e77542785ca0c"},{"url":"https://git.kernel.org/stable/c/af0524bf4ce1a4cbd2946aa81751582951cfcab5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:41:16.971Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}