222 lines
12 KiB
JSON
222 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-2023-54100",
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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": "2025-12-24T13:02:52.517Z",
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"datePublished": "2025-12-24T13:06:26.560Z",
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"dateUpdated": "2026-08-05T09:17:17.178Z"
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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": "2026-08-05T09:17:17.178Z"
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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\nscsi: qedi: Fix use after free bug in qedi_remove()\n\nIn qedi_probe() we call __qedi_probe() which initializes\n&qedi->recovery_work with qedi_recovery_handler() and\n&qedi->board_disable_work with qedi_board_disable_work().\n\nWhen qedi_schedule_recovery_handler() is called, schedule_delayed_work()\nwill finally start the work.\n\nIn qedi_remove(), which is called to remove the driver, the following\nsequence may be observed:\n\nFix this by finishing the work before cleanup in qedi_remove().\n\nCPU0 CPU1\n\n |qedi_recovery_handler\nqedi_remove |\n __qedi_remove |\niscsi_host_free |\nscsi_host_put |\n//free shost |\n |iscsi_host_for_each_session\n |//use qedi->shost\n\nCancel recovery_work and board_disable_work in __qedi_remove()."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The race is between local PCI driver teardown (unbind/rmmod/hotplug of the QLogic FastLinQ iSCSI device) and a locally-schedulable recovery work item; there is no remote or network-facing path into `qedi_remove()` or the devlink health-reporter recover op.\nAC:L - An attacker with local access controls the timing of the device-removal side and can repeatedly re-trigger the recovery/board-disable work (devlink fw_fatal recover, MFW error paths) to widen the window, so the race can be driven deterministically rather than depending on conditions outside the attacker's influence.\nPR:L - Consistent with prior scoring of this driver-teardown UAF class (e.g. CVE-2025-37838), a low-privileged local account on a host exporting the qedi device/devlink interfaces is treated as sufficient; no authentication beyond local account access is needed to reach the racing work handler.\nUI:N - Both sides of the race are attacker-driven administrative/driver events; no victim action such as opening a file or mounting a filesystem is required.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `qedi_ctx` is embedded in the freed `Scsi_Host` allocation, so the handler reads `qedi->shost`, `qedi->cdev`, and `qedi->pdev` out of freed slab memory; an attacker who reclaims that slot obtains a controlled read primitive and can disclose arbitrary kernel memory.\nI:H - `qedi_recovery_handler()` calls `__qedi_remove()` followed by `__qedi_probe()` on the freed context, writing function pointers, work_structs, and DMA state into the reclaimed allocation — a powerful write primitive suitable for control-flow hijacking.\nA:H - Even unexploited, dereferencing and re-initializing the freed `Scsi_Host`/`qedi_ctx` and iterating its session list produces slab corruption and a kernel oops/panic."
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}
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]
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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/scsi/qedi/qedi_main.c"
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],
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"versions": [
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{
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"version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
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"lessThan": "fa19c533ab19161298f0780bcc6523af88f6fd20",
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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": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
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"lessThan": "5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151",
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"status": "affected",
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"lessThan": "3738a230831e861503119ee2691c4a7dc56ed60a",
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"status": "affected",
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"lessThan": "89f6023fc321c958a0fb11f143a6eb4544ae3940",
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"status": "affected",
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"versionType": "git"
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{
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"version": "4b1068f5d74b6cc92319bd7eba40809b1222e73f",
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"lessThan": "124027cd1a624ce0347adcd59241a9966a726b22",
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"status": "affected",
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"versionType": "git"
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{
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"lessThan": "c5749639f2d0a1f6cbe187d05f70c2e7c544d748",
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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/scsi/qedi/qedi_main.c"
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],
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"versions": [
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{
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"version": "5.7",
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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": "5.7",
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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": "5.10.180",
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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": "5.15.112",
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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": "6.1.29",
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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": "6.2.16",
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"lessThanOrEqual": "6.2.*",
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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": "6.3.3",
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"lessThanOrEqual": "6.3.*",
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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": "6.4",
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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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"nodes": [
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"operator": "OR",
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.7",
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"versionEndExcluding": "5.10.180"
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"vulnerable": true,
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/fa19c533ab19161298f0780bcc6523af88f6fd20"
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},
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{
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"url": "https://git.kernel.org/stable/c/5e756a59cee6a8a79b9059c5bdf0ecbf5bb8d151"
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"url": "https://git.kernel.org/stable/c/3738a230831e861503119ee2691c4a7dc56ed60a"
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"url": "https://git.kernel.org/stable/c/89f6023fc321c958a0fb11f143a6eb4544ae3940"
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{
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"url": "https://git.kernel.org/stable/c/124027cd1a624ce0347adcd59241a9966a726b22"
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{
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"url": "https://git.kernel.org/stable/c/c5749639f2d0a1f6cbe187d05f70c2e7c544d748"
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}
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],
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"title": "scsi: qedi: Fix use after free bug in qedi_remove()",
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