{"id":"CVE-2025-38444","title":"raid10: cleanup memleak at raid10_make_request","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nraid10: cleanup memleak at raid10_make_request\n\nIf raid10_read_request or raid10_write_request registers a new\nrequest and the REQ_NOWAIT flag is set, the code does not…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 39db562b3fedb93978a7e42dd216b306740959f8 < 10c6021a609deb95f23f0cc2f89aa9d4bffb14c7","Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 9af149ca9d0dab6e59e813519d309eff62499864","Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 8fc3d7b23d139e3cbc944c15d99b3cdbed797d2d","Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 2941155d9a5ae098b480d551f3a5f8605d4f9af5","Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < ed7bcd9f617e4107ac0813c516e72e6b8f6029bd","Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24","Linux >= 5.15.111 < 5.15.189","Linux 5.17"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:56:54.331611Z"},"published":"2025-07-25","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:02:38.642Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-38444","references":[{"url":"https://git.kernel.org/stable/c/10c6021a609deb95f23f0cc2f89aa9d4bffb14c7"},{"url":"https://git.kernel.org/stable/c/9af149ca9d0dab6e59e813519d309eff62499864"},{"url":"https://git.kernel.org/stable/c/8fc3d7b23d139e3cbc944c15d99b3cdbed797d2d"},{"url":"https://git.kernel.org/stable/c/2941155d9a5ae098b480d551f3a5f8605d4f9af5"},{"url":"https://git.kernel.org/stable/c/ed7bcd9f617e4107ac0813c516e72e6b8f6029bd"},{"url":"https://git.kernel.org/stable/c/43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24"}],"tags":["cve.org"],"epss":0.0018,"epssPercentile":0.07572,"ingestedAt":"2026-11-05T22:38:31.971Z","slug":"CVE-2025-38444","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nraid10: cleanup memleak at raid10_make_request\n\nIf raid10_read_request or raid10_write_request registers a new\nrequest and the REQ_NOWAIT flag is set, the code does not\nfree the malloc from the mempool.\n\nunreferenced object 0xffff8884802c3200 (size 192):\n   comm \"fio\", pid 9197, jiffies 4298078271\n   hex dump (first 32 bytes):\n     00 00 00 00 00 00 00 00 88 41 02 00 00 00 00 00  .........A......\n     08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n   backtrace (crc c1a049a2):\n     __kmalloc+0x2bb/0x450\n     mempool_alloc+0x11b/0x320\n     raid10_make_request+0x19e/0x650 [raid10]\n     md_handle_request+0x3b3/0x9e0\n     __submit_bio+0x394/0x560\n     __submit_bio_noacct+0x145/0x530\n     submit_bio_noacct_nocheck+0x682/0x830\n     __blkdev_direct_IO_async+0x4dc/0x6b0\n     blkdev_read_iter+0x1e5/0x3b0\n     __io_read+0x230/0x1110\n     io_read+0x13/0x30\n     io_issue_sqe+0x134/0x1180\n     io_submit_sqes+0x48c/0xe90\n     __do_sys_io_uring_enter+0x574/0x8b0\n     do_syscall_64+0x5c/0xe0\n     entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nV4: changing backing tree to see if CKI tests will pass.\nThe patch code has not changed between any versions.\n\n## Affected\n\n- `Linux >= 39db562b3fedb93978a7e42dd216b306740959f8 < 10c6021a609deb95f23f0cc2f89aa9d4bffb14c7`\n- `Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 9af149ca9d0dab6e59e813519d309eff62499864`\n- `Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 8fc3d7b23d139e3cbc944c15d99b3cdbed797d2d`\n- `Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 2941155d9a5ae098b480d551f3a5f8605d4f9af5`\n- `Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < ed7bcd9f617e4107ac0813c516e72e6b8f6029bd`\n- `Linux >= c9aa889b035fca4598ae985a0f0c76ebbb547ad2 < 43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24`\n- `Linux >= 5.15.111 < 5.15.189`\n- `Linux 5.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}