227 lines
12 KiB
JSON
227 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-2026-53331",
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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": "2026-06-09T07:44:35.398Z",
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"datePublished": "2026-07-01T13:32:15.733Z",
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"dateUpdated": "2026-07-01T13:32:15.733Z"
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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": "2026-07-01T13:32:15.733Z"
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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\nslimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock\n\nDuring the SSR/PDR down notification the tx_lock is taken with the\nintent to provide synchronization with active DMA transfers.\n\nBut during this period qcom_slim_ngd_down() is invoked, which ends up in\nslim_report_absent(), which takes the slim_controller lock. In multiple\nother codepaths these two locks are taken in the opposite order (i.e.\nslim_controller then tx_lock).\n\nThe result is a lockdep splat, and a possible deadlock:\n\n rprocctl/449 is trying to acquire lock:\n ffff00009793e620 (&ctrl->lock){+.+.}-{4:4}, at: slim_report_absent (drivers/slimbus/core.c:322) slimbus\n\n but task is already holding lock:\n ffff00009793fb50 (&ctrl->tx_lock){+.+.}-{4:4}, at: qcom_slim_ngd_ssr_pdr_notify (drivers/slimbus/qcom-ngd-ctrl.c:1475) slim_qcom_ngd_ctrl\n\n which lock already depends on the new lock.\n\n Possible unsafe locking scenario:\n\n CPU0 CPU1\n ---- ----\n lock(&ctrl->tx_lock);\n lock(&ctrl->lock);\n lock(&ctrl->tx_lock);\n lock(&ctrl->lock);\n\nThe assumption is that the comment refers to the desire to not call\nqcom_slim_ngd_exit_dma() while we have an ongoing DMA TX transaction.\nBut any such transaction is initiated and completed within a single\nqcom_slim_ngd_xfer_msg().\n\nPrior to calling qcom_slim_ngd_exit_dma() the slim_controller is torn\ndown, all child devices are notified that the slimbus is gone and the\nchild devices are removed.\n\nStop taking the tx_lock in qcom_slim_ngd_ssr_pdr_notify() to avoid the\ndeadlock."
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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/slimbus/qcom-ngd-ctrl.c"
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],
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"versions": [
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{
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"version": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "3d1561537237c6cc1db76155183d8bbdac2339f0",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "dc4d5c57e012c2c669793deb1515a57bbc6bf5dd",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "d54a221b0f3cd9e1f03f18104be34e02a8258fae",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "aad4337a21b9ad3ae8d668fa8678d05e26ecbaa8",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "9f0d45d509b434c54da10e01f4ef8086e4583401",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "9708eb50fd7343145b422be852f890212155d845",
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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": "a899d324863a3d15ce0eea513884e1b73a758c58",
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"lessThan": "55f2ea9ff83cc27a85526b14bc9b32f96a08d6ec",
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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/slimbus/qcom-ngd-ctrl.c"
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],
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"versions": [
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{
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"version": "5.11",
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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": "5.11",
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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": "5.15.210",
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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": "6.1.176",
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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": "6.6.143",
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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": "6.12.94",
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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": "6.18.36",
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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": "7.0.13",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "5.11",
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"versionEndExcluding": "5.15.210"
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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": "5.11",
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"versionEndExcluding": "6.1.176"
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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": "5.11",
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"versionEndExcluding": "6.6.143"
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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": "5.11",
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"versionEndExcluding": "6.12.94"
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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": "5.11",
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"versionEndExcluding": "6.18.36"
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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": "5.11",
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"versionEndExcluding": "7.0.13"
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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": "5.11",
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"versionEndExcluding": "7.1"
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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/3d1561537237c6cc1db76155183d8bbdac2339f0"
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},
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{
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"url": "https://git.kernel.org/stable/c/dc4d5c57e012c2c669793deb1515a57bbc6bf5dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/d54a221b0f3cd9e1f03f18104be34e02a8258fae"
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},
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{
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"url": "https://git.kernel.org/stable/c/aad4337a21b9ad3ae8d668fa8678d05e26ecbaa8"
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},
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{
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"url": "https://git.kernel.org/stable/c/9f0d45d509b434c54da10e01f4ef8086e4583401"
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},
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{
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"url": "https://git.kernel.org/stable/c/9708eb50fd7343145b422be852f890212155d845"
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},
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{
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"url": "https://git.kernel.org/stable/c/55f2ea9ff83cc27a85526b14bc9b32f96a08d6ec"
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}
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],
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"title": "slimbus: qcom-ngd-ctrl: Avoid ABBA on tx_lock/ctrl->lock",
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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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} |