vulnerability
Red Hat: CVE-2024-35831: kernel: io_uring: Fix release of pinned pages when __io_uaddr_map fails (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | May 17, 2024 | Dec 5, 2024 | Jun 17, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
May 17, 2024
Added
Dec 5, 2024
Modified
Jun 17, 2026
Description
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.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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