{"id":"CVE-2024-40945","state":"PUBLISHED","title":"iommu: Return right value in iommu_sva_bind_device()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Return right value in iommu_sva_bind_device()\n\niommu_sva_bind_device() should return either a sva bond handle or an\nERR_PTR value in error cases. Existing drivers (idxd and uacce) only\ncheck the return value with IS_ERR(). This could potentially lead to\na kernel NULL pointer dereference issue if the function returns NULL\ninstead of an error pointer.\n\nIn reality, this doesn't cause any problems because iommu_sva_bind_device()\nonly returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA.\nIn this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will\nreturn an error, and the device drivers won't call iommu_sva_bind_device()\nat all.","publishedAt":"2024-07-12T12:25:19.164Z","updatedAt":"2026-10-15T00:45:43.208Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"700f564758882db7c039dfba9443fe762561a3f8","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"cf34f8f66982a36e5cba0d05781b21ec9606b91e","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"2973b8e7d127754de9013177c41c0b5547406998","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"6325eab6c108fed27f60ff51852e3eac0ba23f3f","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"61a96da9649a6b6a1a5d5bde9374b045fdb5c12e","versionType":"git"},{"version":"26b25a2b98e45aeb40eedcedc586ad5034cbd984","status":"affected","lessThan":"89e8a2366e3bce584b6c01549d5019c5cda1205e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/iommu.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.4.279","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.221","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.162","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.129","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.35","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.6","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/iommu.h"]}],"references":["https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8","https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e","https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998","https://git.kernel.org/stable/c/6325eab6c108fed27f60ff51852e3eac0ba23f3f","https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6","https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e","https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e","https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html","https://cert-portal.siemens.com/productcert/html/ssa-265688.html","https://cert-portal.siemens.com/productcert/html/ssa-613116.html","https://cert-portal.siemens.com/productcert/html/ssa-355557.html","https://cert-portal.siemens.com/productcert/html/ssa-784472.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/40xxx/CVE-2024-40945.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-40945","state":"PUBLISHED","datePublished":"2024-07-12T12:25:19.164Z","dateUpdated":"2026-10-15T00:45:43.208Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-07-12T12:17:45.588Z"},"containers":{"cna":{"title":"iommu: Return right value in iommu_sva_bind_device()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu: Return right value in iommu_sva_bind_device()\n\niommu_sva_bind_device() should return either a sva bond handle or an\nERR_PTR value in error cases. Existing drivers (idxd and uacce) only\ncheck the return value with IS_ERR(). This could potentially lead to\na kernel NULL pointer dereference issue if the function returns NULL\ninstead of an error pointer.\n\nIn reality, this doesn't cause any problems because iommu_sva_bind_device()\nonly returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA.\nIn this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will\nreturn an error, and the device drivers won't call iommu_sva_bind_device()\nat 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