Out-of-bounds read in Linux kernel - CVE-2026-98660

Vulnerability identifier: #VU156989

CSH Severity: Low

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98660

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to trigger an out-of-bounds kernel memory read, potentially causing a denial of service.

The vulnerability exists due to an out-of-bounds read in the Linux kernel bmp280 pressure sensor driver's bmp280_write_sampling_frequency() function when looking up a requested sampling frequency. The function treats the number of flattened integer elements as the number of two-element frequency entries. A local privileged user can request a sampling frequency that causes the lookup to iterate beyond the table boundary, potentially causing a kernel fault and a denial of service.

Linux kernel
SUSE Linux Micro
SUSE Linux Micro Extras
kernel-default
kernel-64kb
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-debugsource
kernel-default-devel-debuginfo

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-default - update to 6.4.0-159998.55.1
kernel-64kb - update to 6.4.0-159998.55.1
kernel-64kb-debugsource - update to 6.4.0-159998.55.1
kernel-64kb-devel - update to 6.4.0-159998.55.1
kernel-default-devel - update to 6.4.0-159998.55.1
kernel-syms - update to 6.4.0-159998.55.1
kernel-obs-build - update to 6.4.0-159998.55.1
kernel-obs-build-debugsource - update to 6.4.0-159998.55.1
kernel-default-debugsource - update to 6.4.0-159998.55.1
kernel-default-devel-debuginfo - update to 6.4.0-159998.55.1

• https://git.kernel.org/stable/c/05ef1af381a0f4556c7e3c0dc6bc2428d16c707e
• https://git.kernel.org/stable/c/4fd5a61e61d6899cbd45728a5fceba49a53c222d
• https://git.kernel.org/stable/c/56c423b233b214182c58c99861899327b45b0d6c
• https://git.kernel.org/stable/c/7dbb518f3328ebd9d5c6e970b4befad6deb5c7f1
• https://git.kernel.org/stable/c/9db6684fab228edd3b8861a172ccbce3236f027a

• Out-of-bounds read in Linux kernel iio pressure driver
• SUSE update for the Linux Kernel