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ubuntucveUbuntu.comUB:CVE-2024-35831
HistoryMay 17, 2024 - 12:00 a.m.

CVE-2024-35831

2024-05-1700:00:00
ubuntu.com
ubuntu.com
3
linux kernel
io_uring
vulnerability
pinned page
release
error path
memory fragmentation

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%

In the Linux kernel, the following vulnerability has been resolved:
io_uring: Fix release of pinned pages when __io_uaddr_map fails Looking at
the error path of __io_uaddr_map, if we fail after pinning the pages for
any reasons, ret will be set to -EINVAL and the error handler won’t
properly release the pinned pages. I didn’t manage to trigger it without
forcing a failure, but it can happen in real life when memory is heavily
fragmented.

6.5 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%