CVE-2025-21988 — Resource Injection in Linux

CWE-99 — Resource Injection5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.1%
top 78.04%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedApr 2

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").

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel6.12 — 6.12.20+1
▶Debianlinux/linux_kernel< 6.12.20-1+1
▶CVEListV5linux/linuxee4cdf7ba857a894ad1650d6ab77669cbbfa329e — 62b9ad7e52d4777f7e775ee1f0ad2452f6041024+3
▶debiandebian/linux< linux 6.12.20-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2025-21988: In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate da↗2025-04-02
▶
GHSA
GHSA-pvv9-vqm2-p5fx: In the Linux kernel, the following vulnerability has been resolved: fs/netfs/read_collect: add to next->prev_donated If multiple subrequests donate↗2025-04-02
▶

📋Vendor Advisories

2
Red Hat
kernel: fs/netfs/read_collect: add to next->prev_donated↗2025-04-02
▶
Debian
CVE-2025-21988: linux - In the Linux kernel, the following vulnerability has been resolved: fs/netfs/re...↗2025
▶
CVE-2025-21988 — Resource Injection in Linux | cvebase