9.8

CVE-2026-74376: linux

CVSS: 9.8v3.1CriticalReceived
AliasesUBUNTU-CVE-2026-74376DEBIAN-CVE-2026-74376
Published 15-08-2026Last modified 16-10-2026
Open JSON

Vulnerability summary

CVE-2026-74376 is a critical (CVSS 9.8) vulnerability in linux. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.50%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 18 · Related 18
OPENSUSE-SU-2026:22091-1SUSE-SU-2026:4640-1SUSE-SU-2026:4706-1USN-8781-1USN-8816-1USN-8816-2

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 16-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.50%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

0.00 pp

From 0.50% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.50%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu168 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-34.34
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1013.13
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
  • linux≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < 3cb2a606ce4902eceabe68338df0653312f861f8 | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < 561c9711e4f545d6464a023168bdee03b00fa945 | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < ce3030e92f14362880055de5fe3c258971118853 | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < 742e4afd247d9c972695227716b03d432a7e1d26 | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < b7313f23ea5a79b199a007bfad64a866cc2c22e7 | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < eb04e3e9c14ed15914f5fd2eae8b6435f54f095f | ≥ d30588b2731fb01e1616cf16c3fe79a1443e29aa, < 6b8a26af065ddc93de2aa5c9f0df98dce9723442 | 5.13

3 vendors · 170 products

References

26 links
Show all 26 references