What is CVE-2024-26850?

CVE-2024-26850 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.6 onward and patched in 6.6.21, 6.7.9 and 6.8. CVE-2024-26850 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26850?

CVE-2024-26850 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-26850?

Yes, CVE-2024-26850 has been patched. Fixed versions include 6.6.21, 6.7.9 and 6.8. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-26850 actively exploited?

CVE-2024-26850 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26850

Medium

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

Package Linux Kernel

Published 2024-04-17

Last modified 2025-03-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 6.6 and later are affected. Fixed in 6.6.21, 6.7.9, 6.8 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.21 6.6.x ✓ 6.7.9 6.7.x ✓ 6.8

References

3 total

Kernel Git
https://git.kernel.org/stable/c/720da1e593b85a550593b415bf1d79a053133451

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/d2a9510c0e39d06f5544075c13040407bdbf2803

Mailing List Patch
Kernel Git
https://git.kernel.org/stable/c/eeeddf85fc58d48c58ad916e4ca12363ebd8ab21

Mailing List Patch

Details

CVE ID CVE-2024-26850

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-17

Modified 2025-03-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26850?

CVE-2024-26850 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.6 onward and has been patched in 6.6.21, 6.7.9 and 6.8. CVE-2024-26850 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26850?

CVE-2024-26850 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-26850?

Yes. CVE-2024-26850 has been patched. Fixed versions include 6.6.21, 6.7.9 and 6.8. If you are running Linux kernel 6.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-26850 actively exploited?

No. CVE-2024-26850 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.