CVE-2026-74376

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Source
https://cve.org/CVERecord?id=CVE-2026-74376
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74376.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74376
Downstream
Published
2026-08-15T05:58:55.023Z
Modified
2026-08-18T03:56:46.970522506Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
md/raid10: reset read_slot when reusing r10bio for discard
Details

In the Linux kernel, the following vulnerability has been resolved:

md/raid10: reset read_slot when reusing r10bio for discard

putallbios() always drops devs[i].bio, but it only drops devs[i].replbio when r10bio->readslot < 0. If discard reuses an r10bio that was previously used for a read, readslot can still be non-negative, and discard cleanup can skip bioput() on replbio.

Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74376.json"
}
References

Affected packages

Git / 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
d30588b2731fb01e1616cf16c3fe79a1443e29aa
Fixed
3cb2a606ce4902eceabe68338df0653312f861f8
Fixed
561c9711e4f545d6464a023168bdee03b00fa945
Fixed
ce3030e92f14362880055de5fe3c258971118853
Fixed
742e4afd247d9c972695227716b03d432a7e1d26
Fixed
b7313f23ea5a79b199a007bfad64a866cc2c22e7
Fixed
eb04e3e9c14ed15914f5fd2eae8b6435f54f095f
Fixed
6b8a26af065ddc93de2aa5c9f0df98dce9723442

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74376.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.13.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74376.json"