{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-93046", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T15:57:05.658Z", "datePublished": "2026-09-17T16:10:37.691Z", "dateUpdated": "2026-10-19T09:04:41.369Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:04:41.369Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoftware node: Fix software_node_get_reference_args() with index -1\n\nThe bounds check for the index passed to\nsoftware_node_get_reference_args() was failing when passed UINT_MAX,\nthis in turn would lead to an out of bound access in the property\narray. Fix the bound check to also cover the UINT_MAX case." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The OOB is in software_node_get_reference_args() in drivers/base/swnode.c, reached only from in-kernel fwnode_property_get_reference_args()/fwnode_find_reference() on local probe/consumer paths (led_get → fwnode_led_get, swnode_gpio_get_reference, IIO/reset/mailbox); the wrapping index is a kernel argument, not bytes from a packet or remote peer.\nAC:H - Only index==UINT_MAX makes (index+1)*sizeof(*ref) wrap to 0 so the bound is skipped. led_get() passes -1 into fwnode_led_get(), but that value is overwritten by fwnode_property_match_string() for every in-tree con_id (v4l2_subdev_get_privacy_led \"privacy\", yogabook \"pen-icon-led\"); other negative errnos do not wrap on 64-bit, so the attacker cannot force UINT_MAX against a live DEV_PROP_REF.\nPR:L - The lookup runs in driver probe and consumer helpers (led_get from v4l2_subdev_get_privacy_led, swnode_find_gpio, fwnode_find_reference) with no capability check; an unprivileged local user can provoke those paths by opening a consumer device node or causing bind, without init-namespace root or user-namespace tricks.\nUI:N - software_node_get_reference_args() runs automatically inside fwnode_find_reference()/led_get()/swnode_gpio_get_reference during probe or consumer get; no other user must mount media, open a file, or confirm a prompt.\nS:U - The wild software_node_ref_args load, fwnode_handle_get() and any oops stay inside the host kernel; no VM, IOMMU or sandbox boundary is crossed.\nC:H - ref=&ref_array[UINT_MAX] reads a full software_node_ref_args (swnode, fwnode, nargs, args[NR_FWNODE_REFERENCE_ARGS]) from wrapped/wild memory; those pointers and u64 args[] are not a few bounded bytes and can be returned to GPIO/LED/IIO consumers.\nI:H - The OOB bytes are used as ref->swnode/ref->fwnode; software_node_fwnode() or fwnode_handle_get() then software_node_get() → kobject_get() runs on that pointer, an ops-vtable call and a refcount write at a non-object address — a control-flow-relevant primitive.\nA:H - The wrapped ref_array[UINT_MAX] pointer is immediately dereferenced (ref->swnode / ref->fwnode / fwnode_handle_get()), which oopses or panics the kernel (KASAN slab-OOB or wild-pointer fault)." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/base/swnode.c" ], "versions": [ { "version": "142acd739eb6f08c148a96ae8309256f1422ff4b", "lessThan": "6cde06887487b4febd14658c9a246616abcc0097", "status": "affected", "versionType": "git" }, { "version": "56ce76e8d406cc72b89aee7931df5cf3f18db49d", "lessThan": "0631384eadebc66d92d2dd72d57a0263c3877bee", "status": "affected", "versionType": "git" }, { "version": "9324127b07dde8529222dc19233aa57ec810856c", "lessThan": "b2fa4e8c7e4a33e02e6aaa8f6df72f84cf4aed75", "status": "affected", "versionType": "git" }, { "version": "f9397cf7bfb680799fb8c7f717c8f756384c3280", "lessThan": "4ebf96d5f834aba7f6d0397db4c421f6078171b9", "status": "affected", "versionType": "git" }, { "version": "4b3383110b6df48e0ba5936af2cb68d5eb6bd43b", "lessThan": "849076df15129e47dd8db751fa18489419ffea56", "status": "affected", "versionType": "git" }, { "version": "31e4e12e0e9609850cefd4b2e1adf782f56337d6", "lessThan": "df5466412b362db7adfa78e3e092fe07ac6769a4", "status": "affected", "versionType": "git" }, { "version": "31e4e12e0e9609850cefd4b2e1adf782f56337d6", "lessThan": "231bbc04c58f115a505bf3b668ec69ef40a1773b", "status": "affected", "versionType": "git" }, { "version": "31e4e12e0e9609850cefd4b2e1adf782f56337d6", "lessThan": "ba3dedcf3bd47017307595a7e54924198f018246", "status": "affected", "versionType": "git" }, { "version": "7af18e42bdefe1dba5bcb32555a4d524fd504939", "status": "affected", "versionType": "git" }, { "version": "5.10.239", "lessThan": "5.10.270", "status": "affected", "versionType": "semver" }, { "version": "5.15.186", "lessThan": "5.15.221", "status": "affected", "versionType": "semver" }, { "version": "6.1.142", "lessThan": "6.1.188", "status": "affected", "versionType": "semver" }, { "version": "6.6.95", "lessThan": "6.6.157", "status": "affected", "versionType": "semver" }, { "version": "6.12.35", "lessThan": "6.12.110", "status": "affected", "versionType": "semver" }, { "version": "6.15.4", "lessThan": "6.16", "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/base/swnode.c" ], "versions": [ { "version": "6.16", "status": "affected" }, { "version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.6", "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": "5.10.239", "versionEndExcluding": "5.10.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.186", "versionEndExcluding": "5.15.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.142", "versionEndExcluding": "6.1.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.95", "versionEndExcluding": "6.6.157" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.35", "versionEndExcluding": "6.12.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18.52" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15.4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6cde06887487b4febd14658c9a246616abcc0097" }, { "url": "https://git.kernel.org/stable/c/0631384eadebc66d92d2dd72d57a0263c3877bee" }, { "url": "https://git.kernel.org/stable/c/b2fa4e8c7e4a33e02e6aaa8f6df72f84cf4aed75" }, { "url": "https://git.kernel.org/stable/c/4ebf96d5f834aba7f6d0397db4c421f6078171b9" }, { "url": "https://git.kernel.org/stable/c/849076df15129e47dd8db751fa18489419ffea56" }, { "url": "https://git.kernel.org/stable/c/df5466412b362db7adfa78e3e092fe07ac6769a4" }, { "url": "https://git.kernel.org/stable/c/231bbc04c58f115a505bf3b668ec69ef40a1773b" }, { "url": "https://git.kernel.org/stable/c/ba3dedcf3bd47017307595a7e54924198f018246" } ], "title": "software node: Fix software_node_get_reference_args() with index -1", "x_generator": { "engine": "bippy-1.2.0" } } } }