{"id":"CVE-2025-23154","summary":"io_uring/net: fix io_req_post_cqe abuse by send bundle","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/net: fix io_req_post_cqe abuse by send bundle\n\n[  114.987980][ T5313] WARNING: CPU: 6 PID: 5313 at io_uring/io_uring.c:872 io_req_post_cqe+0x12e/0x4f0\n[  114.991597][ T5313] RIP: 0010:io_req_post_cqe+0x12e/0x4f0\n[  115.001880][ T5313] Call Trace:\n[  115.002222][ T5313]  \u003cTASK\u003e\n[  115.007813][ T5313]  io_send+0x4fe/0x10f0\n[  115.009317][ T5313]  io_issue_sqe+0x1a6/0x1740\n[  115.012094][ T5313]  io_wq_submit_work+0x38b/0xed0\n[  115.013223][ T5313]  io_worker_handle_work+0x62a/0x1600\n[  115.013876][ T5313]  io_wq_worker+0x34f/0xdf0\n\nAs the comment states, io_req_post_cqe() should only be used by\nmultishot requests, i.e. REQ_F_APOLL_MULTISHOT, which bundled sends are\nnot. Add a flag signifying whether a request wants to post multiple\nCQEs. Eventually REQ_F_APOLL_MULTISHOT should imply the new flag, but\nthat's left out for simplicity.","modified":"2026-04-02T12:45:23.807846Z","published":"2025-05-01T12:55:40.923Z","related":["SUSE-SU-2025:01951-1","SUSE-SU-2025:01967-1","SUSE-SU-2025:01972-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23154.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6889ae1b4df1579bcdffef023e2ea9a982565dff"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7888c9fc0b2d3636f2e821ed1ad3c6920fa8e378"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9aa804e6b9696998308095fb9d335046a71550f1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b7c6d081c19a5e11bbd77bb97a62cff2b6b21cb5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23154.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-23154"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a05d1f625c7aa681d8816bc0f10089289ad07aad"},{"fixed":"b7c6d081c19a5e11bbd77bb97a62cff2b6b21cb5"},{"fixed":"7888c9fc0b2d3636f2e821ed1ad3c6920fa8e378"},{"fixed":"9aa804e6b9696998308095fb9d335046a71550f1"},{"fixed":"6889ae1b4df1579bcdffef023e2ea9a982565dff"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-23154.json"}}],"schema_version":"1.7.5"}