CVE-2025-38444

raid10: cleanup memleak at raid10_make_request

State: Published
Severity: Not scored
Published: Jul 25, 2025
Updated: May 23, 2026
Reserved: Apr 16, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	39db562b3fedb93978a7e42dd216b306740959f8 to before 10c6021a609deb95f23f0cc2f89aa9d4bffb14c7Affected c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 9af149ca9d0dab6e59e813519d309eff62499864Affected c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 8fc3d7b23d139e3cbc944c15d99b3cdbed797d2dAffected c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 2941155d9a5ae098b480d551f3a5f8605d4f9af5Affected c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before ed7bcd9f617e4107ac0813c516e72e6b8f6029bdAffected c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24Affected 5.15.111 to before 5.15.189Affected
LinuxLinux	5.17Affected before 5.17Not affected 5.15.189 through 5.15.Not affected 6.1.146 through 6.1.Not affected 6.6.99 through 6.6.Not affected 6.12.39 through 6.12.Not affected 6.15.7 through 6.15.*Not affected 6.16 and laterNot affected

Product

Versions

LinuxLinux

39db562b3fedb93978a7e42dd216b306740959f8 to before 10c6021a609deb95f23f0cc2f89aa9d4bffb14c7Affected
c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 9af149ca9d0dab6e59e813519d309eff62499864Affected
c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 8fc3d7b23d139e3cbc944c15d99b3cdbed797d2dAffected
c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 2941155d9a5ae098b480d551f3a5f8605d4f9af5Affected
c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before ed7bcd9f617e4107ac0813c516e72e6b8f6029bdAffected
c9aa889b035fca4598ae985a0f0c76ebbb547ad2 to before 43806c3d5b9bb7d74ba4e33a6a8a41ac988bde24Affected
5.15.111 to before 5.15.189Affected

LinuxLinux

5.17Affected
before 5.17Not affected
5.15.189 through 5.15.*Not affected
6.1.146 through 6.1.*Not affected
6.6.99 through 6.6.*Not affected
6.12.39 through 6.12.*Not affected
6.15.7 through 6.15.*Not affected
6.16 and laterNot affected

References

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