140 lines
7.6 KiB
JSON
140 lines
7.6 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-2026-23350",
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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": "2026-01-13T15:37:45.999Z",
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"datePublished": "2026-03-25T10:27:36.182Z",
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"dateUpdated": "2026-08-05T12:21:15.714Z"
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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": "2026-08-05T12:21:15.714Z"
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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\ndrm/xe/queue: Call fini on exec queue creation fail\n\nEvery call to queue init should have a corresponding fini call.\nSkipping this would mean skipping removal of the queue from GuC list\n(which is part of guc_id allocation). A damaged queue stored in\nexec_queue_lookup list would lead to invalid memory reference,\nsooner or later.\n\nCall fini to free guc_id. This must be done before any internal\nLRCs are freed.\n\nSince the finalization with this extra call became very similar to\n__xe_exec_queue_fini(), reuse that. To make this reuse possible,\nalter xe_lrc_put() so it can survive NULL parameters, like other\nsimilar functions.\n\nv2: Reuse _xe_exec_queue_fini(). Make xe_lrc_put() aware of NULLs.\n\n(cherry picked from commit 393e5fea6f7d7054abc2c3d97a4cfe8306cd6079)"
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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 vulnerability is reached via the DRM_IOCTL_XE_EXEC_QUEUE_CREATE ioctl on the Intel Xe GPU render node (/dev/dri/renderD*), which requires local system access.\nAC:L - The attacker can trigger xe_lrc_create() failure through memory pressure (controllable by a local user) or by using a width > 1 to increase allocation failure probability. No race condition or uncontrollable preconditions are required.\nPR:L - The ioctl is DRM_RENDER_ALLOW, accessible to any unprivileged user who can open the render node device file, which is typically world-accessible on systems with Intel GPUs.\nUI:N - No user interaction is needed; the attacker directly invokes the ioctl.\nS:U - The vulnerability affects the kernel within its own security authority; there is no VM escape or sandbox boundary crossing.\nC:H - This is a use-after-free where the freed queue object remains in the exec_queue_lookup xarray. An attacker can reclaim the freed slab with controlled data, enabling arbitrary kernel memory reads through the stale pointer.\nI:H - The use-after-free allows heap spraying to control the freed object's contents, enabling arbitrary write primitives and potential code execution when the GuC submission code operates on the stale queue pointer.\nA:H - Accessing the freed queue through the dangling pointer in exec_queue_lookup will cause invalid memory references, leading to kernel crashes or panics."
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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/gpu/drm/xe/xe_exec_queue.c",
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"drivers/gpu/drm/xe/xe_lrc.h"
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],
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"versions": [
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{
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"version": "3c1fa4aa60b146d1fa73b2b87064303f8e4b7952",
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"lessThan": "fae65b8a4449ae556990efcde8d74bec4adc5925",
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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": "3c1fa4aa60b146d1fa73b2b87064303f8e4b7952",
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"lessThan": "99f9b5343cae80eb0dfe050baf6c86d722b3ba2e",
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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/gpu/drm/xe/xe_exec_queue.c",
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"drivers/gpu/drm/xe/xe_lrc.h"
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],
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"versions": [
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{
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"version": "6.19",
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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": "6.19",
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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": "6.19.7",
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"lessThanOrEqual": "6.19.*",
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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",
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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": "6.19",
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"versionEndExcluding": "6.19.7"
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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": "6.19",
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"versionEndExcluding": "7.0"
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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/fae65b8a4449ae556990efcde8d74bec4adc5925"
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},
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{
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"url": "https://git.kernel.org/stable/c/99f9b5343cae80eb0dfe050baf6c86d722b3ba2e"
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}
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],
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"title": "drm/xe/queue: Call fini on exec queue creation fail",
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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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} |