248 lines
12 KiB
JSON
248 lines
12 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-2026-98342",
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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": "2026-09-25T10:25:14.342Z",
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"datePublished": "2026-10-06T08:46:32.366Z",
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"dateUpdated": "2026-10-19T09:17:53.321Z"
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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": "2026-10-19T09:17:53.321Z"
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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\ndmaengine: wait for RCU readers before releasing dma_device\n\ndma_issue_pending_all() walks the dma_device_list with\nlist_for_each_entry_rcu() under rcu_read_lock(). dma_device_release()\nunlinks the device with list_del_rcu() and then calls\ndevice->device_release() (which in many drivers, such as plx_dma.c,\ndirectly calls kfree()).\n\nBecause there is no grace period between unlinking the device and\nfreeing it, concurrent RCU readers in dma_issue_pending_all() can\naccess the device after it has been freed.\n\nThe lockless walk originally relied on clients holding a dmaengine\nreference to pin the provider module, and therefore the device, for as\nlong as they might traverse the list. Commit 8ad342a86359 (\"dmaengine:\nAdd reference counting to dma_device struct\") decoupled the dma_device\nlifetime from the module reference, so the device can now be released\nwhile a reader is still walking the list.\n\nAdd synchronize_rcu() before the device is freed, so RCU readers are\nguaranteed to have finished. Keep it unconditional: providers that do\nnot implement device_release() free the device themselves once\ndma_async_device_unregister() returns. This call will delay for a grace\nperiod with dma_list_mutex held, which is safe and only teardown path is\ndelayed."
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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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"drivers/dma/dmaengine.c"
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],
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"versions": [
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{
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"version": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "ac8ce9f89638d6d79875cca7d8ae42566a9bde15",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "14578c78405d51fa92e4ada4502a45f537c0fcb8",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "cbb3310a5167e868a5e763e32b9a23b4d50669ee",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "8577a5ec4f7e00443015ef99f646def093121a1b",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "4448a539a0c39141cccc67be6cacde0f35024313",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "fc1f4884f1d46fc7a8cee6e2997ecc9e8d1c7f77",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "4aed7e47a10b94ea3c5171e8d1382081accd2e03",
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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": "2ba05622b8b143b0c95968ba59bddfbd6d2f2559",
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"lessThan": "dc750422170a563c7a81f6e49d36bb02c62ae37f",
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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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"drivers/dma/dmaengine.c"
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],
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"versions": [
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{
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"version": "2.6.29",
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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": "2.6.29",
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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": "5.10.271",
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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": "5.15.222",
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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": "6.1.189",
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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": "6.6.158",
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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": "6.12.112",
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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": "6.18.54",
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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": "7.2.8",
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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": "2.6.29",
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"versionEndExcluding": "5.10.271"
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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": "2.6.29",
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"versionEndExcluding": "5.15.222"
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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": "2.6.29",
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"versionEndExcluding": "6.1.189"
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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": "2.6.29",
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"versionEndExcluding": "6.6.158"
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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": "2.6.29",
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"versionEndExcluding": "6.12.112"
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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": "2.6.29",
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"versionEndExcluding": "6.18.54"
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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": "2.6.29",
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"versionEndExcluding": "7.2.8"
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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": "2.6.29",
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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/ac8ce9f89638d6d79875cca7d8ae42566a9bde15"
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},
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{
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"url": "https://git.kernel.org/stable/c/14578c78405d51fa92e4ada4502a45f537c0fcb8"
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},
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{
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"url": "https://git.kernel.org/stable/c/cbb3310a5167e868a5e763e32b9a23b4d50669ee"
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},
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{
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"url": "https://git.kernel.org/stable/c/8577a5ec4f7e00443015ef99f646def093121a1b"
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},
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{
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"url": "https://git.kernel.org/stable/c/4448a539a0c39141cccc67be6cacde0f35024313"
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},
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{
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"url": "https://git.kernel.org/stable/c/fc1f4884f1d46fc7a8cee6e2997ecc9e8d1c7f77"
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},
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{
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"url": "https://git.kernel.org/stable/c/4aed7e47a10b94ea3c5171e8d1382081accd2e03"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc750422170a563c7a81f6e49d36bb02c62ae37f"
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}
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],
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"title": "dmaengine: wait for RCU readers before releasing dma_device",
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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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} |