{"cve":"CVE-2024-56534","nvd":{"published":"2024-12-27T14:15:32.940","modified":"2026-06-17T08:12:19.740","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nisofs: avoid memory leak in iocharset\n\nA memleak was found as below:\n\nunreferenced object 0xffff0000d10164d8 (size 8):\n  comm \"pool-udisksd\", pid 108217, jiffies 4295408555\n  hex dump (first 8 bytes):\n    75 74 66 38 00 cc cc cc                          utf8....\n  backtrace (crc de430d31):\n    [<ffff800081046e6c>] kmemleak_alloc+0xb8/0xc8\n    [<ffff8000803e6c3c>] __kmalloc_node_track_caller_noprof+0x380/0x474\n    [<ffff800080363b74>] kstrdup+0x70/0xfc\n    [<ffff80007bb3c6a4>] isofs_parse_param+0x228/0x2c0 [isofs]\n    [<ffff8000804d7f68>] vfs_parse_fs_param+0xf4/0x164\n    [<ffff8000804d8064>] vfs_parse_fs_string+0x8c/0xd4\n    [<ffff8000804d815c>] vfs_parse_monolithic_sep+0xb0/0xfc\n    [<ffff8000804d81d8>] generic_parse_monolithic+0x30/0x3c\n    [<ffff8000804d8bfc>] parse_monolithic_mount_data+0x40/0x4c\n    [<ffff8000804b6a64>] path_mount+0x6c4/0x9ec\n    [<ffff8000804b6e38>] do_mount+0xac/0xc4\n    [<ffff8000804b7494>] __arm64_sys_mount+0x16c/0x2b0\n    [<ffff80008002b8dc>] invoke_syscall+0x7c/0x104\n    [<ffff80008002ba44>] el0_svc_common.constprop.1+0xe0/0x104\n    [<ffff80008002ba94>] do_el0_svc+0x2c/0x38\n    [<ffff800081041108>] el0_svc+0x3c/0x1b8\n\nThe opt->iocharset is freed inside the isofs_fill_super function,\nBut there may be situations where it's not possible to\nenter this function.\n\nFor example, in the get_tree_bdev_flags function,when\nencountering the situation where \"Can't mount, would change RO state,\"\nIn such a case, isofs_fill_super will not have the opportunity\nto be called,which means that opt->iocharset will not have the chance\nto be freed,ultimately leading to a memory leak.\n\nLet's move the memory freeing of opt->iocharset into\nisofs_free_fc function.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/0b5bbeee4de616a268db77e2f40f19ab010a367b","https://git.kernel.org/stable/c/0fbab266ca8000333c966f5b58cb9b9cac658573","https://git.kernel.org/stable/c/34f090ddb3630a26e5a6b220bf3bfaf5c7b70393"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:57:56.913276502+00:00"},"epss":{"cve":"CVE-2024-56534","score":0.00255,"percentile":0.17172,"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."]}