{"id":"CVE-2025-39674","state":"PUBLISHED","title":"scsi: ufs: ufs-qcom: Fix ESI null pointer dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: ufs-qcom: Fix ESI null pointer dereference\n\nESI/MSI is a performance optimization feature that provides dedicated\ninterrupts per MCQ hardware queue. This is optional feature and UFS MCQ\nshould work with and without ESI feature.\n\nCommit e46a28cea29a (\"scsi: ufs: qcom: Remove the MSI descriptor abuse\")\nbrings a regression in ESI (Enhanced System Interrupt) configuration that\ncauses a null pointer dereference when Platform MSI allocation fails.\n\nThe issue occurs in when platform_device_msi_init_and_alloc_irqs() in\nufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses\n__free() macro for automatic cleanup free MSI resources that were never\nsuccessfully allocated.\n\nUnable to handle kernel NULL pointer dereference at virtual\naddress 0000000000000008\n\n  Call trace:\n  mutex_lock+0xc/0x54 (P)\n  platform_device_msi_free_irqs_all+0x1c/0x40\n  ufs_qcom_config_esi+0x1d0/0x220 [ufs_qcom]\n  ufshcd_config_mcq+0x28/0x104\n  ufshcd_init+0xa3c/0xf40\n  ufshcd_pltfrm_init+0x504/0x7d4\n  ufs_qcom_probe+0x20/0x58 [ufs_qcom]\n\nFix by restructuring the ESI configuration to try MSI allocation first,\nbefore any other resource allocation and instead use explicit cleanup\ninstead of __free() macro to avoid cleanup of unallocated resources.\n\nTested on SM8750 platform with MCQ enabled, both with and without\nPlatform ESI support.","publishedAt":"2025-09-05T17:20:39.859Z","updatedAt":"2026-05-11T21:34:03.499Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e46a28cea29a0ca7d51c811acccf5d119b40c745","status":"affected","lessThan":"aaf17a35a59572c8b29372883619c3dbb0ebb50a","versionType":"git"},{"version":"e46a28cea29a0ca7d51c811acccf5d119b40c745","status":"affected","lessThan":"6300d5c5438724c0876828da2f6e2c1a661871fc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/host/ufs-qcom.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.4","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/host/ufs-qcom.c"]}],"references":["https://git.kernel.org/stable/c/aaf17a35a59572c8b29372883619c3dbb0ebb50a","https://git.kernel.org/stable/c/6300d5c5438724c0876828da2f6e2c1a661871fc"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39674.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39674","state":"PUBLISHED","datePublished":"2025-09-05T17:20:39.859Z","dateUpdated":"2026-05-11T21:34:03.499Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.112Z"},"containers":{"cna":{"title":"scsi: ufs: ufs-qcom: Fix ESI null pointer dereference","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: ufs: ufs-qcom: Fix ESI null pointer dereference\n\nESI/MSI is a performance optimization feature that provides dedicated\ninterrupts per MCQ hardware queue. This is optional feature and UFS MCQ\nshould work with and without ESI feature.\n\nCommit e46a28cea29a (\"scsi: ufs: qcom: Remove the MSI descriptor abuse\")\nbrings a regression in ESI (Enhanced System Interrupt) configuration that\ncauses a null pointer dereference when Platform MSI allocation fails.\n\nThe issue occurs in when platform_device_msi_init_and_alloc_irqs() in\nufs_qcom_config_esi() fails (returns -EINVAL) but the current code uses\n__free() macro for automatic cleanup free MSI resources that were never\nsuccessfully allocated.\n\nUnable to handle kernel NULL pointer dereference at virtual\naddress 0000000000000008\n\n  Call trace:\n  mutex_lock+0xc/0x54 (P)\n  platform_device_msi_free_irqs_all+0x1c/0x40\n  ufs_qcom_config_esi+0x1d0/0x220 [ufs_qcom]\n  ufshcd_config_mcq+0x28/0x104\n  ufshcd_init+0xa3c/0xf40\n  ufshcd_pltfrm_init+0x504/0x7d4\n  ufs_qcom_probe+0x20/0x58 [ufs_qcom]\n\nFix by restructuring the ESI configuration to try MSI allocation first,\nbefore any other resource allocation and instead use explicit cleanup\ninstead of __free() macro to avoid cleanup of unallocated resources.\n\nTested on SM8750 platform with MCQ enabled, both with and without\nPlatform ESI support."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e46a28cea29a0ca7d51c811acccf5d119b40c745","status":"affected","lessThan":"aaf17a35a59572c8b29372883619c3dbb0ebb50a","versionType":"git"},{"version":"e46a28cea29a0ca7d51c811acccf5d119b40c745","status":"affected","lessThan":"6300d5c5438724c0876828da2f6e2c1a661871fc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/host/ufs-qcom.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.4","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/ufs/host/ufs-qcom.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/aaf17a35a59572c8b29372883619c3dbb0ebb50a"},{"url":"https://git.kernel.org/stable/c/6300d5c5438724c0876828da2f6e2c1a661871fc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:34:03.499Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}