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Critical severity9.8NVD Advisory· Published Apr 2, 2025· Updated Jul 30, 2026

CVE-2025-21988

CVE-2025-21988

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").

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.12.0, < 6.12.20
  • Linux/Kernelcpe-rescue3 versions
    6.12+ 2 more
    • (no CPE)range: 6.12
    • (no CPE)
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.12,<6.12.20

Patches

Vulnerability mechanics

References

3

News mentions

0

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