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CVE-2024-35821: ubifs: Set page uptodate in the correct place

Description

In the Linux kernel, the following vulnerability has been resolved:

ubifs: Set page uptodate in the correct place

Page cache reads are lockless, so setting the freshly allocated page
uptodate before we've overwritten it with the data it's supposed to have
in it will allow a simultaneous reader to see old data. Move the call
to SetPageUptodate into ubifs_write_end(), which is after we copied the
new data into the page.

Classification

CVE ID: CVE-2024-35821

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 15.23% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

Timeline

2024-12-20 00:36:25 UTC
CVE

ubifs: Set page uptodate in the correct place