| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/pseries/iommu: Don't unset window if it was never set\n\nOn pSeries, when user attempts to use the same vfio container used by\ndifferent iommu group, the spapr_tce_set_window() returns -EPERM\nand the subsequent cleanup leads to the below crash.\n\n Kernel attempted to read user page (308) - exploit attempt?\n BUG: Kernel NULL pointer dereference on read at 0x00000308\n Faulting instruction address: 0xc0000000001ce358\n Oops: Kernel access of bad area, sig: 11 [#1]\n NIP: c0000000001ce358 LR: c0000000001ce05c CTR: c00000000005add0\n <snip>\n NIP [c0000000001ce358] spapr_tce_unset_window+0x3b8/0x510\n LR [c0000000001ce05c] spapr_tce_unset_window+0xbc/0x510\n Call Trace:\n spapr_tce_unset_window+0xbc/0x510 (unreliable)\n tce_iommu_attach_group+0x24c/0x340 [vfio_iommu_spapr_tce]\n vfio_container_attach_group+0xec/0x240 [vfio]\n vfio_group_fops_unl_ioctl+0x548/0xb00 [vfio]\n sys_ioctl+0x754/0x1580\n system_call_exception+0x13c/0x330\n system_call_vectored_common+0x15c/0x2ec\n <snip>\n --- interrupt: 3000\n\nFix this by having null check for the tbl passed to the\nspapr_tce_unset_window()." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/powerpc/platforms/pseries/iommu.c" |
| ], |
| "versions": [ |
| { |
| "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", |
| "lessThan": "b853ff0b514c1df314246fcf94744005914b48cb", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", |
| "lessThan": "ac12372a13dab3f7a2762db240bd180de8ef1e5e", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "f431a8cde7f102fce412546db6e62fdbde1131a7", |
| "lessThan": "17391cb2613b82f8c405570fea605af3255ff8d2", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/powerpc/platforms/pseries/iommu.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.11", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.11", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.13", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.2", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.11", |
| "versionEndExcluding": "6.12.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.11", |
| "versionEndExcluding": "6.13.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.11", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/b853ff0b514c1df314246fcf94744005914b48cb" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/ac12372a13dab3f7a2762db240bd180de8ef1e5e" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/17391cb2613b82f8c405570fea605af3255ff8d2" |
| } |
| ], |
| "title": "powerpc/pseries/iommu: Don't unset window if it was never set", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21713", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
