CVE-2025-38444 (GCVE-0-2025-38444)

Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2026-05-23 15:59
VLAI
Title
raid10: cleanup memleak at raid10_make_request
Summary
In the Linux kernel, the following vulnerability has been resolved: raid10: cleanup memleak at raid10_make_request If raid10_read_request or raid10_write_request registers a new request and the REQ_NOWAIT flag is set, the code does not free the malloc from the mempool. unreferenced object 0xffff8884802c3200 (size 192): comm "fio", pid 9197, jiffies 4298078271 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 88 41 02 00 00 00 00 00 .........A...... 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc c1a049a2): __kmalloc+0x2bb/0x450 mempool_alloc+0x11b/0x320 raid10_make_request+0x19e/0x650 [raid10] md_handle_request+0x3b3/0x9e0 __submit_bio+0x394/0x560 __submit_bio_noacct+0x145/0x530 submit_bio_noacct_nocheck+0x682/0x830 __blkdev_direct_IO_async+0x4dc/0x6b0 blkdev_read_iter+0x1e5/0x3b0 __io_read+0x230/0x1110 io_read+0x13/0x30 io_issue_sqe+0x134/0x1180 io_submit_sqes+0x48c/0xe90 __do_sys_io_uring_enter+0x574/0x8b0 do_syscall_64+0x5c/0xe0 entry_SYSCALL_64_after_hwframe+0x76/0x7e V4: changing backing tree to see if CKI tests will pass. The patch code has not changed between any versions.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 39db562b3fedb93978a7e42dd216b306740959f8 , < 10c6021a609deb95f23f0cc2f89aa9d4bffb14c7 (git)
Affected: c9aa889b035fca4598ae985a0f0c76ebbb547ad2 , < 9af149ca9d0dab6e59e813519d309eff62499864 (git)
Affected: c9aa889b035fca4598ae985a0f0c76ebbb547ad2 , < 8fc3d7b23d139e3cbc944c15d99b3cdbed797d2d (git)
Affected: c9aa889b035fca4598ae985a0f0c76ebbb547ad2 , < 2941155d9a5ae098b480d551f3a5f8605d4f9af5 (git)
Affected: c9aa889b035fca4598ae985a0f0c76ebbb547ad2 , < ed7bcd9f617e4107ac0813c516e72e6b8f6029bd (git)
Affected: c9aa889b035fca4598ae985a0f0c76ebbb547ad2 , < 43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24 (git)
Affected: 5.15.111 , < 5.15.189 (semver)
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Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "value": "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\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."
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.