| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/xen: fix xen_hypercall_hvm() to not clobber %rbx\n\nxen_hypercall_hvm(), which is used when running as a Xen PVH guest at\nmost only once during early boot, is clobbering %rbx. Depending on\nwhether the caller relies on %rbx to be preserved across the call or\nnot, this clobbering might result in an early crash of the system.\n\nThis can be avoided by using an already saved register instead of %rbx." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "arch/x86/xen/xen-head.S" |
| ], |
| "versions": [ |
| { |
| "version": "7e44e7065263c3baf287e7ff267a610cccde7544", |
| "lessThan": "522d726824cc570e0b6bf0b3af4d5a826f1b17c5", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "31f29270c15bef700cbea40297c6b9a7114b3960", |
| "lessThan": "242f7584da3ad041a9db809d33d27a8be8eccc29", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "3fbfac0f30441725e87d85d8629fa9dbc673704b", |
| "lessThan": "4890a0858c09d96f3234a8f94663de80a7201bc4", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b4845bb6383821a9516ce30af3a27dc873e37fd4", |
| "lessThan": "23f6f420cd727d641f95478fcf3bbbee41e4e5d6", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b4845bb6383821a9516ce30af3a27dc873e37fd4", |
| "lessThan": "98a5cfd2320966f40fe049a9855f8787f0126825", |
| "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/x86/xen/xen-head.S" |
| ], |
| "versions": [ |
| { |
| "version": "6.13", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.13", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.129", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.78", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.14", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.3", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14-rc2", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/522d726824cc570e0b6bf0b3af4d5a826f1b17c5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/242f7584da3ad041a9db809d33d27a8be8eccc29" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4890a0858c09d96f3234a8f94663de80a7201bc4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/23f6f420cd727d641f95478fcf3bbbee41e4e5d6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/98a5cfd2320966f40fe049a9855f8787f0126825" |
| } |
| ], |
| "title": "x86/xen: fix xen_hypercall_hvm() to not clobber %rbx", |
| "x_generator": { |
| "engine": "bippy-5f407fcff5a0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21818", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
