CVE•Published 2025-04-02•Modified 2026-07-30•1 article on news•5 live references•NVD data
CVE-2025-21988Linux · Linux_kernel
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
Description
In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate data to the same "next" request (depending on the subrequest completion order), each of them would overwrite the `prev_donated` field, causing data corruption and a BUG() crash ("Can't donate prior to front").
Timeline
Published 2025-04-02
Modified 2026-07-30
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-21988Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Linux Kernel"Hosts Shodan identified as running Linux Kernel.
More intel sources (5)
Shodan report
vuln:CVE-2025-21988Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-21988Censys host search filtered to this CVE id.
grep.app
CVE-2025-21988Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-21988GitHub code search for direct mentions.
Google dork
"CVE-2025-21988" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.