Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-64497— iio: chemical: scd30: Cleanup initializations and fix sign-extension bug

AI Predicted 5.5 Difficulty: Moderate EPSS 0.18% · P8

Possible ATT&CK Techniques 1AI

T1562

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinux64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 0ccff849bde90973e6c13a666f6ceab5c55b30d4affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 1821bcacd8ac5b214c53be16cbb8172bf193f0b6affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 40bb0fdb37f441c9c9f52bf58bbd8a0ca3cc9598affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< b131f0011dfef72350f4e3f11df94dc3e6b46065affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 8d4a46e971cf846bda98b20d4cabfa21c1276e5faffected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 82accdd57404399eddf3d56fd9beda7c61307388affected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< d49ff54b2784aa56a7c97982de713604de89d23aaffected
64b3d8b1b0f5c16c19045785e4da8391ae35ec99< 60d877910a43c305b5165131b258a17b1d772d57affected
… +10 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-64497

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
iio: chemical: scd30: Cleanup initializations and fix sign-extension bug
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: iio: chemical: scd30: Cleanup initializations and fix sign-extension bug Include linux/bitfield.h for FIELD_GET(). Create new macros for bit manipulation in combination with manual bit manipulation being replaced with FIELD_GET(). The current variable declaration and initializations are barely readable and use comma separations across multiple lines. Refactor the initializations so that mantissa and exp have separate declarations and sign gets initialized later. In addition (and due to the nature of the cleanup), fix a sign-extension bug where, float32 would get bitwise anded with ~BIT(31) (which is 0xFFFFFFFF7FFFFFFF) which corrupted the exponent.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一款操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于符号扩展错误，可能导致数据损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux 64b3d8b1b0f5c16c19045785e4da8391ae35ec99 ~ 0ccff849bde90973e6c13a666f6ceab5c55b30d4 -
LinuxLinux 5.9 -

II. Public POCs for CVE-2026-64497

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-64497

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-64497 (8)

Same Patch Batch · Linux · 2026-07-25 · 274 CVEs total

CVE-2026-643919.8 CRITICALksmbd: use opener credentials for ADS I/O
CVE-2026-642689.8 CRITICALRDMA/siw: bound Read Response placement to the RREAD length
CVE-2026-643849.8 CRITICALsmb: client: fix change notify replay double-free
CVE-2026-643839.8 CRITICALsmb: client: fix double-free in SMB2_flush() replay
CVE-2026-643859.8 CRITICALsmb: client: fix double-free in SMB2_ioctl() replay
CVE-2026-643869.8 CRITICALsmb: client: fix query_info() replay double-free
CVE-2026-643879.8 CRITICALsmb: client: fix query directory replay double-free
CVE-2026-644399.8 CRITICALcrypto: krb5 - filter out async aead implementations at alloc
CVE-2026-643039.8 CRITICALspi: fsl-lpspi: terminate the RX channel on TX prepare failure path
CVE-2026-643559.8 CRITICALbpf: Reject fragmented frames in devmap
CVE-2026-644599.8 CRITICALtcp: restore RCU grace period in tcp_ao_destroy_sock
CVE-2026-643999.8 CRITICALksmbd: add permission checks for FSCTL_DUPLICATE_EXTENTS_TO_FILE
CVE-2026-644109.8 CRITICALnetfilter: flowtable: IPIP tunnel hardware offload is not yet support
CVE-2026-643979.8 CRITICALksmbd: serialize QUERY_DIRECTORY requests per file
CVE-2026-645239.8 CRITICALnet/handshake: Take a long-lived file reference at submit
CVE-2026-643209.1 CRITICALnvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page
CVE-2026-643929.1 CRITICALksmbd: use opener credentials for delete-on-close
CVE-2026-642699.1 CRITICALRDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
CVE-2026-643939.1 CRITICALksmbd: run set info with opener credentials
CVE-2026-643199.1 CRITICALnvmet-auth: validate reply message payload bounds against transfer length

Showing top 20 of 274 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-64497

No comments yet

Leave a comment