CVE-2025-21988

fs/netfs/read_collect: add to next->prev_donated

published April 2, 2025

CVSS
—
EPSS
0%
Percentile
31.6
In the wild
Unconfirmed
What it is

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").

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00387 · 31.6th percentile
Published
2025-04-02T12:53Z
EPSS history
Timeline
  • 02 APR 12:53Z
    fs/netfs/read_collect: add to next->prev_donated
    cvelistv5