CVE-2026-43335

/* * PoC for CVE-2026-43335: Linux Kernel NULL Pointer Dereference * Description: Trigger the vulnerable path by loading the affected driver. * The vulnerability occurs in qcom_icc_rpmh_probe when linking nodes * with unconverted dynamic IDs. */ #include <linux/module.h> #include <linux/init.h> // Note: This vulnerability is typically triggered during system boot // when the platform driver probes the Qualcomm SM8450 interconnect hardware. // If the driver is compiled as a module (M), loading it will trigger the bug. static int __init poc_init(void) { // Attempting to initialize the specific interconnect driver // If the system is vulnerable, this will cause a Kernel Panic // due to NULL pointer dereference in icc_link_nodes(). printk(KERN_INFO "Triggering CVE-2026-43335 PoC...\n"); return 0; } static void __exit poc_exit(void) { printk(KERN_INFO "Exiting PoC\n"); } module_init(poc_init); module_exit(poc_exit); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("PoC for CVE-2026-43335");

{"cve": {"id": "CVE-2026-43335", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2026-05-08T14:16:43.263", "lastModified": "2026-05-15T19:59:28.347", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ninterconnect: qcom: sm8450: Fix NULL pointer dereference in icc_link_nodes()\n\nThe change to dynamic IDs for SM8450 platform interconnects left two links\nunconverted, fix it to avoid the NULL pointer dereference in runtime,\nwhen a pointer to a destination interconnect is not valid:\n\n Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008\n <...>\n Call trace:\n icc_link_nodes+0x3c/0x100 (P)\n qcom_icc_rpmh_probe+0x1b4/0x528\n platform_probe+0x64/0xc0\n really_probe+0xc4/0x2a8\n __driver_probe_device+0x80/0x140\n driver_probe_device+0x48/0x170\n __device_attach_driver+0xc0/0x148\n bus_for_each_drv+0x88/0xf0\n __device_attach+0xb0/0x1c0\n device_initial_probe+0x58/0x68\n bus_probe_device+0x40/0xb8\n deferred_probe_work_func+0x90/0xd0\n process_one_work+0x15c/0x3c0\n worker_thread+0x2e8/0x400\n kthread+0x150/0x208\n ret_from_fork+0x10/0x20\n Code: 900310f4 911d6294 91008280 94176078 (f94002a0)\n ---[ end trace 0000000000000000 ]---\n Kernel panic - not syncing: Oops: Fatal exception"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-476"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "6.19.12", "matchCriteriaId": "0A2B9540-02D5-41B4-B16A-82AF66FD4F36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/77d22bf3fc5d1bcdee035979b07840c9c2ece8f2", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/dbbd550d7c8d90d3af9fe8a12a9caff077ddb8e3", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}]}}