UBUNTU-CVE-2024-26850

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Source
https://ubuntu.com/security/CVE-2024-26850
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26850.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2024-26850
Upstream
Published
2024-04-17T11:15:00Z
Modified
2025-09-08T16:59:43Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: mm/debugvmpgtable: fix BUGON with pud advanced test Architectures like powerpc add debug checks to ensure we find only devmap PUD pte entries. These debug checks are only done with CONFIGDEBUGVM. This patch marks the ptes used for PUD advanced test devmap pte entries so that we don't hit on debug checks on architecture like ppc64 as below. WARNING: CPU: 2 PID: 1 at arch/powerpc/mm/book3s64/radixpgtable.c:1382 radixpudhugepageupdate+0x38/0x138 .... NIP [c0000000000a7004] radixpudhugepageupdate+0x38/0x138 LR [c0000000000a77a8] radix_pudphugegetandclear+0x28/0x60 Call Trace: [c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable) [c000000004a2f980] [000d34c100000000] 0xd34c100000000 [c000000004a2f9a0] [c00000000206ba98] pudadvancedtests+0x118/0x334 [c000000004a2fa40] [c00000000206db34] debugvmpgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] dooneinitcall+0x60/0x388 Also kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202! .... NIP [c000000000096510] pudphugegetandclearfull+0x98/0x174 LR [c00000000206bb34] pudadvancedtests+0x1b4/0x334 Call Trace: [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable) [c000000004a2f9a0] [c00000000206bb34] pudadvancedtests+0x1b4/0x334 [c000000004a2fa40] [c00000000206db34] debugvmpgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] dooneinitcall+0x60/0x388

References

Affected packages

Ubuntu:22.04:LTS / linux-intel-iot-realtime

Package

Name
linux-intel-iot-realtime
Purl
pkg:deb/ubuntu/linux-intel-iot-realtime@5.15.0-1073.75?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.15.0-1073.75

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-buildinfo-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-cloud-tools-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-headers-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-image-unsigned-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-cloud-tools-5.15.0-1073"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-cloud-tools-common"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-headers-5.15.0-1073"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-tools-5.15.0-1073"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-tools-common"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-intel-iot-realtime-tools-host"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-modules-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-modules-extra-5.15.0-1073-intel-iot-realtime"
        },
        {
            "binary_version": "5.15.0-1073.75",
            "binary_name": "linux-tools-5.15.0-1073-intel-iot-realtime"
        }
    ]
}

Ubuntu:22.04:LTS / linux-realtime

Package

Name
linux-realtime
Purl
pkg:deb/ubuntu/linux-realtime@5.15.0-1032.35?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

5.*

5.15.0-1032.35

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-buildinfo-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-cloud-tools-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-headers-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-image-unsigned-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-modules-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-modules-extra-5.15.0-1032-realtime"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-cloud-tools-5.15.0-1032"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-cloud-tools-common"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-headers-5.15.0-1032"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-tools-5.15.0-1032"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-tools-common"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-realtime-tools-host"
        },
        {
            "binary_version": "5.15.0-1032.35",
            "binary_name": "linux-tools-5.15.0-1032-realtime"
        }
    ]
}

Ubuntu:Pro:24.04:LTS:Realtime:Kernel / linux-raspi-realtime

Package

Name
linux-raspi-realtime
Purl
pkg:deb/ubuntu/linux-raspi-realtime@6.8.0-2002.2?arch=source&distro=realtime/noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.0-2002.2

Affected versions

6.*

6.7.0-2001.1
6.8.0-2001.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-buildinfo-6.8.0-2002-raspi-realtime"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-headers-6.8.0-2002-raspi-realtime"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-image-6.8.0-2002-raspi-realtime"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-modules-6.8.0-2002-raspi-realtime"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-raspi-realtime-headers-6.8.0-2002"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-raspi-realtime-tools-6.8.0-2002"
        },
        {
            "binary_version": "6.8.0-2002.2",
            "binary_name": "linux-tools-6.8.0-2002-raspi-realtime"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}