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CVE-2026-98648

s390/uv: Prevent potential out-of-bounds read

N/A
Published: October 18, 2026 at 03:20 PM UTC
Updated: October 19, 2026 at 10:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: s390/uv: Prevent potential out-of-bounds read When the system has more than 85 secrets, the uv_secret_list struct array only holds up to 85 items per page, resulting in an out of bounds read in find_secret_in_page if the targeted secret is in the next page or not stored at all. Fix this by looping over the number of stored secrets which is the per sub-list count of stored secrets and not the overall count.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
6.137c9137af2042e0d67aae0ccd84afc8ffc4b0d95d
Vendor states this is fixed in 6.18.55 (unaffected)
Vendor states this is fixed in 7.2.9 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: cverecord
https://git.kernel.org/stable/c/04bb5b2eb9f1d56110f14d3a4e31fa2c65fb026f
Source: cverecord
https://git.kernel.org/stable/c/116bba758533a139bbede8d717a1371bd6d890f6
Source: cverecord
https://git.kernel.org/stable/c/f47190b08b71e8482072978373ee88cb2dfbdaf4

Quick Info

StatusRECEIVED

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