{"cve":"CVE-2022-50765","nvd":{"published":"2025-12-24T13:16:03.297","modified":"2026-06-17T05:24:08.387","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRISC-V: kexec: Fix memory leak of elf header buffer\n\nThis is reported by kmemleak detector:\n\nunreferenced object 0xff2000000403d000 (size 4096):\n  comm \"kexec\", pid 146, jiffies 4294900633 (age 64.792s)\n  hex dump (first 32 bytes):\n    7f 45 4c 46 02 01 01 00 00 00 00 00 00 00 00 00  .ELF............\n    04 00 f3 00 01 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<00000000566ca97c>] kmemleak_vmalloc+0x3c/0xbe\n    [<00000000979283d8>] __vmalloc_node_range+0x3ac/0x560\n    [<00000000b4b3712a>] __vmalloc_node+0x56/0x62\n    [<00000000854f75e2>] vzalloc+0x2c/0x34\n    [<00000000e9a00db9>] crash_prepare_elf64_headers+0x80/0x30c\n    [<0000000067e8bf48>] elf_kexec_load+0x3e8/0x4ec\n    [<0000000036548e09>] kexec_image_load_default+0x40/0x4c\n    [<0000000079fbe1b4>] sys_kexec_file_load+0x1c4/0x322\n    [<0000000040c62c03>] ret_from_syscall+0x0/0x2\n\nIn elf_kexec_load(), a buffer is allocated via vzalloc() to store elf\nheaders.  While it's not freed back to system when kdump kernel is\nreloaded or unloaded, or when image->elf_header is successfully set and\nthen fails to load kdump kernel for some reason. Fix it by freeing the\nbuffer in arch_kimage_file_post_load_cleanup().","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/090bfcfc9f14d05154893c67eeaecc56e894fbae","https://git.kernel.org/stable/c/cbc32023ddbdf4baa3d9dc513a2184a84080a5a2","https://git.kernel.org/stable/c/cdea2da6787583ecca43594132533a2ac8d7cd21"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2022-50765","score":0.00235,"percentile":0.14528,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}