What is CVE-2024-26785?

CVE-2024-26785 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 6.6.55, 6.7.9 and 6.8. CVE-2024-26785 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-26785?

CVE-2024-26785 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-2024-26785?

Yes, CVE-2024-26785 has been patched. Fixed versions include 6.6.55, 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-2024-26785 actively exploited?

CVE-2024-26785 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-26785

Medium

In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix protection fault in iommufd_test_syz_conv_iova Syzkaller reported the following bug: general protection fault, probably for non-canonical address 0xdffffc0000000038: 0000 [#1] SMP KASAN KASAN: null-ptr-deref in range [0x00000000000001c0-0x00000000000001c7] Call Trace: lock_acquire lock_acquire+0x1ce/0x4f0 down_read+0x93/0x4a0 iommufd_test_syz_conv_iova+0x56/0x1f0 iommufd_test_access_rw.isra.0+0x2ec/0x390 iommufd_test+0x1058/0x1e30 iommufd_fops_ioctl+0x381/0x510 vfs_ioctl __do_sys_ioctl __se_sys_ioctl __x64_sys_ioctl+0x170/0x1e0 do_syscall_x64 do_syscall_64+0x71/0x140 This is because the new iommufd_access_change_ioas() sets access->ioas to NULL during its process, so the lock might be gone in a concurrent racing context. Fix this by doing the same access->ioas sanity as iommufd_access_rw() and iommufd_access_pin_pages() functions do.

Package Linux Kernel

Published 2024-04-04

Last modified 2025-04-04

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

Weakness type

CWE-120

CVE-2024-26785 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.6 and later are affected. Fixed in 6.6.55, 6.7.9, 6.8 and their respective stable series.

Affected from

≥ 6.6

Fixed in

✓ 6.6.55 6.6.x ✓ 6.7.9 6.7.x ✓ 6.8

References

3 total

Kernel Git
https://git.kernel.org/stable/c/cf7c2789822db8b5efa34f5ebcf1621bc0008d48

Patch
Kernel Git
https://git.kernel.org/stable/c/fc719ecbca45c9c046640d72baddba3d83e0bc0b

Patch
Kernel Git
https://git.kernel.org/stable/c/fd4d5cd7a2e8f08357c9bfc0905957cffe8ce568

Patch

Details

CVE ID CVE-2024-26785

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-04-04

Modified 2025-04-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-26785?

CVE-2024-26785 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 6.6.55, 6.7.9 and 6.8. CVE-2024-26785 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-26785?

CVE-2024-26785 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-2024-26785?

Yes. CVE-2024-26785 has been patched. Fixed versions include 6.6.55, 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-2024-26785 actively exploited?

No. CVE-2024-26785 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.