{"id":"CVE-2025-37748","state":"PUBLISHED","title":"iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group\n\nCurrently, mtk_iommu calls during probe iommu_device_register before\nthe hw_list from driver data is initialized. Since iommu probing issue\nfix, it leads to NULL pointer dereference in mtk_iommu_device_group when\nhw_list is accessed with list_first_entry (not null safe).\n\nSo, change the call order to ensure iommu_device_register is called\nafter the driver data are initialized.","publishedAt":"2025-05-01T12:55:54.660Z","updatedAt":"2026-05-11T21:14:24.076Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"2f75cb27bef43c8692b0f5e471e5632f6a9beb99","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"6abd09bed43b8d83d461e0fb5b9a200a06aa8a27","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"a0842539e8ef9386c070156103aff888e558a60c","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"69f9d2d37d1207c5a73dac52a4ce1361ead707f5","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"38e8844005e6068f336a3ad45451a562a0040ca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.135","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.88","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.24","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.12","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.3","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]}],"references":["https://git.kernel.org/stable/c/2f75cb27bef43c8692b0f5e471e5632f6a9beb99","https://git.kernel.org/stable/c/6abd09bed43b8d83d461e0fb5b9a200a06aa8a27","https://git.kernel.org/stable/c/a0842539e8ef9386c070156103aff888e558a60c","https://git.kernel.org/stable/c/ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c","https://git.kernel.org/stable/c/69f9d2d37d1207c5a73dac52a4ce1361ead707f5","https://git.kernel.org/stable/c/38e8844005e6068f336a3ad45451a562a0040ca1","https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37748.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37748","state":"PUBLISHED","datePublished":"2025-05-01T12:55:54.660Z","dateUpdated":"2026-05-11T21:14:24.076Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.936Z"},"containers":{"cna":{"title":"iommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/mediatek: Fix NULL pointer deference in mtk_iommu_device_group\n\nCurrently, mtk_iommu calls during probe iommu_device_register before\nthe hw_list from driver data is initialized. Since iommu probing issue\nfix, it leads to NULL pointer dereference in mtk_iommu_device_group when\nhw_list is accessed with list_first_entry (not null safe).\n\nSo, change the call order to ensure iommu_device_register is called\nafter the driver data are initialized."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"2f75cb27bef43c8692b0f5e471e5632f6a9beb99","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"6abd09bed43b8d83d461e0fb5b9a200a06aa8a27","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"a0842539e8ef9386c070156103aff888e558a60c","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"69f9d2d37d1207c5a73dac52a4ce1361ead707f5","versionType":"git"},{"version":"9e3a2a64365318a743e3c0b028952d2cdbaf2b0c","status":"affected","lessThan":"38e8844005e6068f336a3ad45451a562a0040ca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.1.135","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.88","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.24","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.12","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14.3","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/iommu/mtk_iommu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2f75cb27bef43c8692b0f5e471e5632f6a9beb99"},{"url":"https://git.kernel.org/stable/c/6abd09bed43b8d83d461e0fb5b9a200a06aa8a27"},{"url":"https://git.kernel.org/stable/c/a0842539e8ef9386c070156103aff888e558a60c"},{"url":"https://git.kernel.org/stable/c/ce7d3b2f6f393fa35f0ea12861b83a1ca28b295c"},{"url":"https://git.kernel.org/stable/c/69f9d2d37d1207c5a73dac52a4ce1361ead707f5"},{"url":"https://git.kernel.org/stable/c/38e8844005e6068f336a3ad45451a562a0040ca1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:14:24.076Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.1.135"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.6.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.12.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.13.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.14.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:54:22.042Z"}}]}}}