{"id":"CVE-2026-93104","state":"PUBLISHED","title":"RDMA/rvt: Return NULL after port allocation failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rvt: Return NULL after port allocation failure\n\nrvt_alloc_device() deallocates the IB device when its port array cannot\nbe allocated but then returns the pointer to the released allocation.\nCallers treat any non-NULL value as valid and dereference it, resulting\nin a use-after-free.\n\nReturn NULL immediately after deallocation so callers can propagate the\nallocation failure.","publishedAt":"2026-09-17T16:11:15.760Z","updatedAt":"2026-10-30T12:35:59.264Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"32d2cdb0f3cac430b04124c3b7248851fe2037f8","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"b7129930d1ec46c03a0de07fdce6c29f75795006","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"80968b42d13080bf7bc1f3ee17fef126ce2ad98f","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"b1e1b25723af44328524c7b54433e4bf0ab9930c","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/sw/rdmavt/vt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","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":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/infiniband/sw/rdmavt/vt.c"]}],"references":["https://git.kernel.org/stable/c/32d2cdb0f3cac430b04124c3b7248851fe2037f8","https://git.kernel.org/stable/c/b7129930d1ec46c03a0de07fdce6c29f75795006","https://git.kernel.org/stable/c/5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1","https://git.kernel.org/stable/c/80968b42d13080bf7bc1f3ee17fef126ce2ad98f","https://git.kernel.org/stable/c/b1e1b25723af44328524c7b54433e4bf0ab9930c","https://git.kernel.org/stable/c/2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f"],"weaknesses":[],"ingestedAt":"2026-10-30T12:54:04.478Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93104.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93104","state":"PUBLISHED","datePublished":"2026-09-17T16:11:15.760Z","dateUpdated":"2026-10-30T12:35:59.264Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.085Z"},"containers":{"cna":{"title":"RDMA/rvt: Return NULL after port allocation failure","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rvt: Return NULL after port allocation failure\n\nrvt_alloc_device() deallocates the IB device when its port array cannot\nbe allocated but then returns the pointer to the released allocation.\nCallers treat any non-NULL value as valid and dereference it, resulting\nin a use-after-free.\n\nReturn NULL immediately after deallocation so callers can propagate the\nallocation failure."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"32d2cdb0f3cac430b04124c3b7248851fe2037f8","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"b7129930d1ec46c03a0de07fdce6c29f75795006","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"80968b42d13080bf7bc1f3ee17fef126ce2ad98f","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"b1e1b25723af44328524c7b54433e4bf0ab9930c","versionType":"git"},{"version":"ff6acd69518e0a84bd9c9b7f1bd4313f7076db97","status":"affected","lessThan":"2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/sw/rdmavt/vt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","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":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/infiniband/sw/rdmavt/vt.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/32d2cdb0f3cac430b04124c3b7248851fe2037f8"},{"url":"https://git.kernel.org/stable/c/b7129930d1ec46c03a0de07fdce6c29f75795006"},{"url":"https://git.kernel.org/stable/c/5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1"},{"url":"https://git.kernel.org/stable/c/80968b42d13080bf7bc1f3ee17fef126ce2ad98f"},{"url":"https://git.kernel.org/stable/c/b1e1b25723af44328524c7b54433e4bf0ab9930c"},{"url":"https://git.kernel.org/stable/c/2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:35:59.264Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}