Out-of-bounds Write Affecting kernel-livepatch-6_4_0-150700_7_75-rt package, versions <1-150700.1.3.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.18% (7th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES157-KERNELLIVEPATCH640150700775RT-19822640
  • published15 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

NewCVE-2026-64084  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-livepatch-6_4_0-150700_7_75-rt to version 1-150700.1.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6_4_0-150700_7_75-rt package and not the kernel-livepatch-6_4_0-150700_7_75-rt package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (pmbus/adm1266) cap PDIO scan in get_multiple at ADM1266_PDIO_NR

adm1266_gpio_get_multiple() iterates the PDIO portion of the caller-supplied mask using

for_each_set_bit_from(gpio_nr, mask,
              ADM1266_GPIO_NR + ADM1266_PDIO_STATUS) {
    ...
}

where ADM1266_PDIO_STATUS is the PMBus command code (0xE9, i.e. 233), not the number of PDIO pins. The intended upper bound is ADM1266_GPIO_NR + ADM1266_PDIO_NR = 25.

gpiolib hands in a mask sized for gc.ngpio (= 25 bits on this chip), so the iteration walks find_next_bit() up to 242, reading up to 217 extra bits (a handful of unsigned-long words: four on 64-bit, seven on 32-bit) of whatever lives past the end of the mask in the caller's stack. Any incidental set bit in that range then drives a set_bit(gpio_nr, bits) call that writes past the end of the caller-supplied bits array too -- both out-of-bounds.

Substitute ADM1266_PDIO_NR for the constant so the scan stops at the last real PDIO bit.

CVSS Base Scores

version 3.1