{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99184", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.399Z", "datePublished": "2026-10-28T10:35:42.469Z", "dateUpdated": "2026-10-28T10:35:42.469Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-28T10:35:42.469Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: search every core slot when a core is removed\n\nrocket_remove() decrements rdev->num_cores for each core it removes,\nwhile find_core_for_dev() searches slots 0 to num_cores - 1. Unbinding\nthe cores in the order they were bound therefore loses the last one: by\nthe time it is removed the search range has already shrunk past its\nslot, so find_core_for_dev() returns -1 and rocket_remove() gives up\nwithout doing anything.\n\nnum_cores never reaches zero, rocket_device_fini() never runs, and the\nfile-scoped rdev keeps pointing at a device that is going away. Binding\nthe cores again starts from that stale count, because rocket_probe()\ntakes rdev->num_cores as the slot to fill. On an RK3588, which describes\nthree cores, the second round lands on slots 1, 2 and 3 while rdev->cores\nwas allocated with room for three:\n\n rocket fdab0000.npu: Rockchip NPU core 1 version: 1179210309\n rocket fdac0000.npu: Rockchip NPU core 2 version: 1179210309\n rocket fdad0000.npu: Rockchip NPU core 3 version: 1179210309\n\nThe write to rdev->cores[3] is past the end of the array.\n\nNothing in tree reads the core array often enough to notice, so the\noverrun is silent today. It turned up while testing a devfreq series on\ntop of this, where a worker walks every core a few times a second, and\nUBSAN caught the first bool it read out of the overrun entry:\n\n UBSAN: invalid-load in drivers/accel/rocket/rocket_devfreq.c:47:10\n load of value 5 is not a valid value for type '_Bool'\n Workqueue: devfreq_wq devfreq_monitor\n\nRecord how many slots were allocated and search all of them. Every core\nis then found on removal, num_cores reaches zero, the device is torn down\nand a later bind starts from a clean rdev.\n\nThis does not make unbinding a single core out of several work. probe\nstill takes num_cores as the slot to fill, so rebinding one core while\nits siblings stay bound would write over a slot that is already in use,\nand rocket_open() still reaches for cores[0] whether or not anything is\nthere. Both of those want more thought than a fix should carry.\n\nFound by unbinding and rebinding all three cores on an Orange Pi 5 Plus.\nWith this applied, 25 unbind/rebind rounds and 5 module unload/reload\nrounds run clean there: the cores land in slots 0, 1 and 2 every time,\nwhichever order they are bound in, and the shared supply goes back to a\nsingle user after each round."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/rocket/rocket_device.c", "drivers/accel/rocket/rocket_device.h", "drivers/accel/rocket/rocket_drv.c"], "versions": [{"version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "lessThan": "5078c91f5c84bb383d0a10ed39856f98575e39cf", "status": "affected", "versionType": "git"}, {"version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "lessThan": "134451cf95cb6aa04b725fbfa04e878d072756f5", "status": "affected", "versionType": "git"}, {"version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "lessThan": "6eff1d69dae808a1518aee5a58d0853a8db3f1be", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/accel/rocket/rocket_device.c", "drivers/accel/rocket/rocket_device.h", "drivers/accel/rocket/rocket_drv.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.59", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.18", "versionEndExcluding": "6.18.59"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5078c91f5c84bb383d0a10ed39856f98575e39cf"}, {"url": "https://git.kernel.org/stable/c/134451cf95cb6aa04b725fbfa04e878d072756f5"}, {"url": "https://git.kernel.org/stable/c/6eff1d69dae808a1518aee5a58d0853a8db3f1be"}], "title": "accel/rocket: search every core slot when a core is removed", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/accel/rocket/rocket_device.c", "drivers/accel/rocket/rocket_device.h", "drivers/accel/rocket/rocket_drv.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5078c91f5c84bb383d0a10ed39856f98575e39cf", "status": "affected", "version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "versionType": "git"}, {"lessThan": "134451cf95cb6aa04b725fbfa04e878d072756f5", "status": "affected", "version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "versionType": "git"}, {"lessThan": "6eff1d69dae808a1518aee5a58d0853a8db3f1be", "status": "affected", "version": "ed98261b41687323ffa02ca20fef1e60b38fd1aa", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/accel/rocket/rocket_device.c", "drivers/accel/rocket/rocket_device.h", "drivers/accel/rocket/rocket_drv.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.59", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/rocket: search every core slot when a core is removed\n\nrocket_remove() decrements rdev->num_cores for each core it removes,\nwhile find_core_for_dev() searches slots 0 to num_cores - 1. Unbinding\nthe cores in the order they were bound therefore loses the last one: by\nthe time it is removed the search range has already shrunk past its\nslot, so find_core_for_dev() returns -1 and rocket_remove() gives up\nwithout doing anything.\n\nnum_cores never reaches zero, rocket_device_fini() never runs, and the\nfile-scoped rdev keeps pointing at a device that is going away. Binding\nthe cores again starts from that stale count, because rocket_probe()\ntakes rdev->num_cores as the slot to fill. On an RK3588, which describes\nthree cores, the second round lands on slots 1, 2 and 3 while rdev->cores\nwas allocated with room for three:\n\n rocket fdab0000.npu: Rockchip NPU core 1 version: 1179210309\n rocket fdac0000.npu: Rockchip NPU core 2 version: 1179210309\n rocket fdad0000.npu: Rockchip NPU core 3 version: 1179210309\n\nThe write to rdev->cores[3] is past the end of the array.\n\nNothing in tree reads the core array often enough to notice, so the\noverrun is silent today. It turned up while testing a devfreq series on\ntop of this, where a worker walks every core a few times a second, and\nUBSAN caught the first bool it read out of the overrun entry:\n\n UBSAN: invalid-load in drivers/accel/rocket/rocket_devfreq.c:47:10\n load of value 5 is not a valid value for type '_Bool'\n Workqueue: devfreq_wq devfreq_monitor\n\nRecord how many slots were allocated and search all of them. Every core\nis then found on removal, num_cores reaches zero, the device is torn down\nand a later bind starts from a clean rdev.\n\nThis does not make unbinding a single core out of several work. probe\nstill takes num_cores as the slot to fill, so rebinding one core while\nits siblings stay bound would write over a slot that is already in use,\nand rocket_open() still reaches for cores[0] whether or not anything is\nthere. Both of those want more thought than a fix should carry.\n\nFound by unbinding and rebinding all three cores on an Orange Pi 5 Plus.\nWith this applied, 25 unbind/rebind rounds and 5 module unload/reload\nrounds run clean there: the cores land in slots 0, 1 and 2 every time,\nwhichever order they are bound in, and the shared supply goes back to a\nsingle user after each round."}], "id": "CVE-2026-99184", "lastModified": "2026-10-28T11:17:39.243", "metrics": {}, "published": "2026-10-28T11:17:39.243", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/134451cf95cb6aa04b725fbfa04e878d072756f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5078c91f5c84bb383d0a10ed39856f98575e39cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6eff1d69dae808a1518aee5a58d0853a8db3f1be"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,5078c91f5c84bb383d0a10ed39856f98575e39cf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,134451cf95cb6aa04b725fbfa04e878d072756f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,6eff1d69dae808a1518aee5a58d0853a8db3f1be)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,5078c91f5c84bb383d0a10ed39856f98575e39cf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,134451cf95cb6aa04b725fbfa04e878d072756f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ed98261b41687323ffa02ca20fef1e60b38fd1aa,6eff1d69dae808a1518aee5a58d0853a8db3f1be)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.59,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T13:00:15.529318+00:00", "updated": "2026-10-28T14:45:13.820150+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-787"]}