VULN/vuln-cve
1
0
Fork 0
Code Pull Requests Actions Activity
Files
72ea4718cdc8a94da4caefede75520df120129a7
vuln-cve/data/2026/93xxx/CVE-2026-93046.json
T

310 lines
16 KiB
JSON
Raw Blame History

{
"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"
}
}
}
}
View Git Blame Copy Permalink