{"id":"CVE-2026-43055","revision":"614eb03013e343939c61935a1df7bdc0","records":[{"revision":"614eb03013e343939c61935a1df7bdc0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-43055","aliases":[],"title":"scsi: target: file: Use kzalloc_flex for aio_cmd","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: file: Use kzalloc_flex for aio_cmd\n\nThe target_core_file doesn't initialize the aio_cmd->iocb for the\nki_write_stream. When a write command fd_execute_rw_aio() is executed,\nwe may get a bogus ki_write_stream value, causing unintended write\nfailure status when checking iocb->ki_write_stream > max_write_streams\nin the block device.\n\nLet's just use kzalloc_flex when allocating the aio_cmd and let\nki_write_stream=0 to fix this issue.","state":0,"publishedAt":"2026-05-01T14:15:48.139+00:00","modifiedAt":"2026-10-19T19:06:11.626+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/target/target_core_file.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"732f25a2895a8c1c54fb56544f0b1e23770ef4d7\",\n                            \"lessThan\": \"ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"732f25a2895a8c1c54fb56544f0b1e23770ef4d7\",\n                            \"lessThan\": \"4eaff1728d0e69b95933412241bbccf4f797dba8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"732f25a2895a8c1c54fb56544f0b1e23770ef4d7\",\n                            \"lessThan\": \"01f784fc9d0ab2a6dac45ee443620e517cb2a19b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/target/target_core_file.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.22\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.12\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ce54802fe6bb78eb0feffc66fed6a45d41ffc3ab","https://git.kernel.org/stable/c/4eaff1728d0e69b95933412241bbccf4f797dba8","https://git.kernel.org/stable/c/01f784fc9d0ab2a6dac45ee443620e517cb2a19b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43055","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-43055","identifiers":["CVE-2026-43055"]},"retained":false,"historicalAffected":[]}],"coverage":[]}