PT-2025-40724 · Linux+1 · Linux Kernel+1
Published
2025-10-04
·
Updated
2026-01-22
·
CVE-2022-50490
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the Linux kernel where an error from
htab lock bucket() is not properly propagated to userspace. Specifically, in the htab map lookup and delete batch() function, if htab lock bucket() returns -EBUSY, the process continues to the next bucket, potentially skipping elements silently. This can also lead to out-of-bound memory access or exposure of kernel memory to userspace if the bucket count exceeds the bucket size or is zero. The fix involves stopping the batch operation and returning -EBUSY when htab lock bucket() fails, allowing the application to retry or skip the operation.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Suse