{"id":"CVE-2026-43224","state":"PUBLISHED","title":"io_uring/zcrx: fix sgtable leak on mapping failures","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zcrx: fix sgtable leak on mapping failures\n\nIn an unlikely case when io_populate_area_dma() fails, which could only\nhappen on a PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA machine,\nio_zcrx_map_area() will have an initialised and not freed table. It was\nsupposed to be cleaned up in the error path, but !is_mapped prevents\nthat.","publishedAt":"2026-05-06T11:28:23.620Z","updatedAt":"2026-05-11T22:20:24.269Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"f1ae403324311e143ef20e53cf9a5f01e312f7c9","versionType":"git"},{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60","versionType":"git"},{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"a983aae397767e9da931128ff2b5bf9066513ce3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/zcrx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","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":["io_uring/zcrx.c"]}],"references":["https://git.kernel.org/stable/c/f1ae403324311e143ef20e53cf9a5f01e312f7c9","https://git.kernel.org/stable/c/ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60","https://git.kernel.org/stable/c/a983aae397767e9da931128ff2b5bf9066513ce3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43224.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43224","state":"PUBLISHED","datePublished":"2026-05-06T11:28:23.620Z","dateUpdated":"2026-05-11T22:20:24.269Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.994Z"},"containers":{"cna":{"title":"io_uring/zcrx: fix sgtable leak on mapping failures","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/zcrx: fix sgtable leak on mapping failures\n\nIn an unlikely case when io_populate_area_dma() fails, which could only\nhappen on a PAGE_POOL_32BIT_ARCH_WITH_64BIT_DMA machine,\nio_zcrx_map_area() will have an initialised and not freed table. It was\nsupposed to be cleaned up in the error path, but !is_mapped prevents\nthat."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"f1ae403324311e143ef20e53cf9a5f01e312f7c9","versionType":"git"},{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60","versionType":"git"},{"version":"439a98b972fbb1991819b5367f482cd4161ba39c","status":"affected","lessThan":"a983aae397767e9da931128ff2b5bf9066513ce3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/zcrx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.18","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","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":["io_uring/zcrx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f1ae403324311e143ef20e53cf9a5f01e312f7c9"},{"url":"https://git.kernel.org/stable/c/ef075c1464ac9047e2cf7d23cb020bfd0b8e4b60"},{"url":"https://git.kernel.org/stable/c/a983aae397767e9da931128ff2b5bf9066513ce3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:20:24.269Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}