CVE-2025-21988

critical · 9.8

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").

9.8

CVSS

0.4%

EPSS (exploit prob.)

32nd

EPSS percentile

2025-04-02

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Vendor	Product	Affected versions
linux	linux_kernel	>= 6.12, < 6.12.20
linux	linux_kernel	>= 6.13, < 6.13.8

Check a specific version with /api/v1/cve/match.

References

https://git.kernel.org/stable/c/62b9ad7e52d4777f7e775ee1f0ad2452f6041024
https://git.kernel.org/stable/c/e25cec3b76aba47a49138d2162fc809c6cd49c9e
https://git.kernel.org/stable/c/e2d46f2ec332533816417b60933954173f602121

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2025-21988