01 Record

CVE-2026-31580

bcache: fix cached_dev.sb_bio use-after-free and crash

UnratedPUBLISHEDCNA: Linux

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

bcache: fix cached_dev.sb_bio use-after-free and crash

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.13% probability of exploitation activity in the next 30 days.
EPSS percentile: Ranks above 2.9% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-24 14:42Z4 MO AGO

Last updated

2026-06-14 17:42Z2 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-416Use After FreeVariant
CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

0584b6a04fb2f5526bb847d2fbcf40d2665344bfb1999c7103d49c80370b64fc

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxcafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 81f44ed8c3f54abb7561ece774ea4cca5070b2f2, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < f50e7c325ab1207fe941555bcff659f6d7050572, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 9467d360be70e6ee55b0c1cd2a1f1424f57b5b85, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 47fa09fe7f3e09df28a51cb2cbd8f5d2f7f6edc1, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < add4982510f3b7c318a2dd7438bdc9c63171e753, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 2d6965581e164fa2ba3f7652ddae5535f6336576, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 4f71c8ba2dc009042493021d94a9718fbe2ebf27, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < 383f7fec0de8cee1cf7ae1f9d9f14044a61f10f9, cafe563591446cf80bfbc2fe3bc72a2e36cf1060 to < fec114a98b8735ee89c75216c45a78e28be0f128, 3.10—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/81f44ed8c3f54abb7561ece774ea4cca5070b2f2
git.kernel.orghttps://git.kernel.org/stable/c/f50e7c325ab1207fe941555bcff659f6d7050572
git.kernel.orghttps://git.kernel.org/stable/c/9467d360be70e6ee55b0c1cd2a1f1424f57b5b85
git.kernel.orghttps://git.kernel.org/stable/c/47fa09fe7f3e09df28a51cb2cbd8f5d2f7f6edc1
git.kernel.orghttps://git.kernel.org/stable/c/add4982510f3b7c318a2dd7438bdc9c63171e753
git.kernel.orghttps://git.kernel.org/stable/c/2d6965581e164fa2ba3f7652ddae5535f6336576
git.kernel.orghttps://git.kernel.org/stable/c/4f71c8ba2dc009042493021d94a9718fbe2ebf27
git.kernel.orghttps://git.kernel.org/stable/c/383f7fec0de8cee1cf7ae1f9d9f14044a61f10f9
git.kernel.orghttps://git.kernel.org/stable/c/fec114a98b8735ee89c75216c45a78e28be0f128

01 Record index

CVE-2026-31580

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2026-31580

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References