248 lines
13 KiB
JSON
248 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-93256",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-09-17T16:02:15.096Z",
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"datePublished": "2026-09-24T15:51:43.080Z",
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"dateUpdated": "2026-10-19T09:08:09.709Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-19T09:08:09.709Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: hibernate: mask DAIF before restoring hibernated kernel\n\nThe arm64 hibernate code manages the exception masking in an unsound\nway, leading to potential crashes and/or warnings during resume.\n\nWhen a hibernation image is saved in `swsusp_arch_suspend()`, all DAIF\nexceptions are masked (by virtue of `local_daif_save()`), and the\nsuspended image is saved assuming that all DAIF exceptions will remain\nmasked when the image is restored.\n\nWhen a hibernation image is resumed by `swsusp_arch_resume()`, only\ninterrupts are masked (by virtue of `local_irq_disable()` in\n`resume_target_kernel()`). When pseudo-NMI is enabled the DAIF.IF bits\nwill be clear, and regardless of pseudo-NMI the DAIF.DA bits will be\nclear.\n\nThis means that there are two problems:\n\n(1) It is possible to take Debug, SError, or pseudo-NMI exceptions\n during the resume process. This is unsafe, as during the resume\n process both the old ane new kernels will tranisently be in an\n inconsistent state, and swsusp_arch_suspend_exit() won't retain\n an executable mapping of any exception vectors.\n\n Any exception taken here will be fatal and silent.\n\n(2) When re-entering the resumed kernel, some DAIF bits will be clear\n unexpectedly. This permits Debug, SError, or pseudo-NMI exceptions\n to be taken for a short period while the resumed kernel is not yet\n in a consistent state.\n\n This is detected by CONFIG_ARM64_DEBUG_PRIORITY_MASKING.\n\nAvoid these issues by masking all DAIF exceptions during resume."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/arm64/kernel/hibernate.c"
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],
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"versions": [
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "716c41bd476334afb943308be9ff2142e34461b7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "5370853041a3cb53a125b77528586278f64b378b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "290c5b0c9fc0c61fb1c41421ed2394f955206ea0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "012823494e20c3cce622982ebd3fd6971be39ad2",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "d736ace2c491623c9ab5e73744085e93e9ae3ebe",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "82869ac57b5d3b550446932c918dbf2caf020c9e",
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"lessThan": "684bde100117931f4c51c644a95f42f2dab041bc",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"arch/arm64/kernel/hibernate.c"
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],
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"versions": [
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{
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"version": "4.7",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.7",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.270",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.221",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.188",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.157",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.110",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.52",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.6",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "5.10.270"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "5.15.221"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.1.188"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.6.157"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.12.110"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.18.52"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "7.2.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.7",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/c9c671e9ab87b639720db8f7f8648bdf0f3bc8ec"
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},
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{
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"url": "https://git.kernel.org/stable/c/099ad3edcef1d955d9f5d6aab16ae78ecdfd4cda"
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},
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{
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"url": "https://git.kernel.org/stable/c/716c41bd476334afb943308be9ff2142e34461b7"
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},
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{
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"url": "https://git.kernel.org/stable/c/5370853041a3cb53a125b77528586278f64b378b"
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},
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{
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"url": "https://git.kernel.org/stable/c/290c5b0c9fc0c61fb1c41421ed2394f955206ea0"
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},
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{
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"url": "https://git.kernel.org/stable/c/012823494e20c3cce622982ebd3fd6971be39ad2"
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},
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{
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"url": "https://git.kernel.org/stable/c/d736ace2c491623c9ab5e73744085e93e9ae3ebe"
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},
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{
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"url": "https://git.kernel.org/stable/c/684bde100117931f4c51c644a95f42f2dab041bc"
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}
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],
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"title": "arm64: hibernate: mask DAIF before restoring hibernated kernel",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |