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.osv.dev/v1/vulns/UBUNTU-CVE-2024-26850
Upstream
Published
2024-04-17T11:15:00Z
Modified
2026-02-06T21:14:21Z
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/debug_vm_pgtable: fix BUG_ON 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 CONFIG_DEBUG_VM. 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/radix_pgtable.c:1382 radix__pud_hugepage_update+0x38/0x138 .... NIP [c0000000000a7004] radix__pud_hugepage_update+0x38/0x138 LR [c0000000000a77a8] radix__pudp_huge_get_and_clear+0x28/0x60 Call Trace: [c000000004a2f950] [c000000004a2f9a0] 0xc000000004a2f9a0 (unreliable) [c000000004a2f980] [000d34c100000000] 0xd34c100000000 [c000000004a2f9a0] [c00000000206ba98] pud_advanced_tests+0x118/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+0x60/0x388 Also kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:202! .... NIP [c000000000096510] pudp_huge_get_and_clear_full+0x98/0x174 LR [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 Call Trace: [c000000004a2f950] [000d34c100000000] 0xd34c100000000 (unreliable) [c000000004a2f9a0] [c00000000206bb34] pud_advanced_tests+0x1b4/0x334 [c000000004a2fa40] [c00000000206db34] debug_vm_pgtable+0xcbc/0x1c48 [c000000004a2fc10] [c00000000000fd28] do_one_initcall+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
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.15.0-1073.75

Ecosystem specific 

{
    "binaries": [
        {
            "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",
            "binary_version": "5.15.0-1073.75"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26850.json"

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
0 Unknown introduced version / All previous versions are affected

Affected versions

5.*
5.15.0-1032.35

Ecosystem specific 

{
    "binaries": [
        {
            "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",
            "binary_version": "5.15.0-1032.35"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26850.json"

Ubuntu:Pro:Realtime:24.04:LTS / 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
0 Unknown 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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "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",
            "binary_version": "6.8.0-2002.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-26850.json"