{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-45980", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.090Z", "datePublished": "2026-05-27T12:18:39.136Z", "dateUpdated": "2026-08-05T12:29:00.693Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:29:00.693Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Stop job scheduling across aie2_release_resource()\n\nRunning jobs on a hardware context while it is in the process of\nreleasing resources can lead to use-after-free and crashes.\n\nFix this by stopping job scheduling before calling\naie2_release_resource() and restarting it after the release completes.\nAdditionally, aie2_sched_job_run() now checks whether the hardware\ncontext is still active." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The vulnerability is reached through ioctls (AMDXDNA_EXEC_CMD and AMDXDNA_DESTROY_HWCTX) on the local /dev/accel/accelN device file; there is no network exposure.\nAC:L - This is a race between the DRM scheduler running a queued job and the hwctx resource release, and the attacker controls both sides (submitting jobs and triggering destroy), so it can be reliably reproduced by looping create/submit/destroy cycles.\nPR:L - The relevant ioctls carry flag 0 with no capability or root check, and the NPU device is intended for unprivileged user-space ML applications, so any local user with device access can trigger it without elevated privileges.\nUI:N - The attacking process performs all steps (open, submit, destroy) itself; no victim action is required.\nS:U - The use-after-free corrupts kernel heap within the kernel's own security authority and does not cross into a separate VM/IOMMU boundary.\nC:H - The freed mailbox channel object can be reclaimed via heap spray, giving the attacker control over its contents and enabling kernel memory disclosure; per guidance UAF is High.\nI:H - The UAF on the channel object used for DMA/command submission enables heap-spray reallocation and controlled writes, providing an arbitrary-write/control-flow primitive.\nA:H - The race-induced use-after-free causes kernel oops/panic, as explicitly stated in the fix commit (\"use-after-free and crashes\")." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/accel/amdxdna/aie2_ctx.c" ], "versions": [ { "version": "4fd6ca90fc7f509977585d39885f21b2911123f3", "lessThan": "b79d31dce49b50c79620389b3639280802a86960", "status": "affected", "versionType": "git" }, { "version": "4fd6ca90fc7f509977585d39885f21b2911123f3", "lessThan": "688c3ff079b10e4600f040944430d3d4ff448a15", "status": "affected", "versionType": "git" }, { "version": "4fd6ca90fc7f509977585d39885f21b2911123f3", "lessThan": "f1370241fe8045702bc9d0812b996791f0500f1b", "status": "affected", "versionType": "git" }, { "version": "36f781a3f0deac92f169416997a17e73538cf470", "status": "affected", "versionType": "git" }, { "version": "6.14.9", "lessThan": "6.15", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/accel/amdxdna/aie2_ctx.c" ], "versions": [ { "version": "6.15", "status": "affected" }, { "version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.19.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.14.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b79d31dce49b50c79620389b3639280802a86960" }, { "url": "https://git.kernel.org/stable/c/688c3ff079b10e4600f040944430d3d4ff448a15" }, { "url": "https://git.kernel.org/stable/c/f1370241fe8045702bc9d0812b996791f0500f1b" } ], "title": "accel/amdxdna: Stop job scheduling across aie2_release_resource()", "x_generator": { "engine": "bippy-1.2.0" } } } }