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VULNERABILITIES

CVE-2026-74376 Details

Description

In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset read_slot when reusing r10bio for discard put_all_bios() always drops devs[i].bio, but it only drops devs[i].repl_bio when r10_bio->read_slot < 0. If discard reuses an r10bio that was previously used for a read, read_slot can still be non-negative, and discard cleanup can skip bio_put() on repl_bio. Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/3cb2a606ce4902eceabe68338df0653312f861f8 kernel.org
https://git.kernel.org/stable/c/561c9711e4f545d6464a023168bdee03b00fa945 kernel.org
https://git.kernel.org/stable/c/6b8a26af065ddc93de2aa5c9f0df98dce9723442 kernel.org
https://git.kernel.org/stable/c/742e4afd247d9c972695227716b03d432a7e1d26 kernel.org
https://git.kernel.org/stable/c/b7313f23ea5a79b199a007bfad64a866cc2c22e7 kernel.org

see all 7 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-74376
NVD Published Date:
Aug 15, 2026
NVD Last Modified:
Aug 17, 2026
Source:
kernel.org
CVE-2026-74376 Details - Not Deferred