Buffer overflow in Linux kernel amd amdgpu driver

1) Buffer overflow

EUVDB-ID: #VU91311

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26915

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the vega20_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/vega20_ih.c, within the vega10_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/vega10_ih.c, within the tonga_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/tonga_ih.c, within the si_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/si_ih.c, within the navi10_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/navi10_ih.c, within the iceland_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/iceland_ih.c, within the cz_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/cz_ih.c, within the cik_ih_get_wptr() function in drivers/gpu/drm/amd/amdgpu/cik_ih.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.15 - 6.8 rc5

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:5.15:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc3:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc4:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc6:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15:rc7:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15.0:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.15.1:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/9a9d00c23d170d4ef5a1b28e6b69f5c85dd12bc1
https://git.kernel.org/stable/c/a28f4d1e0bed85943d309ac243fd1c200f8af9a2
https://git.kernel.org/stable/c/8983397951b4b0bd51bb4b4ba9749424e1ccbb70
https://git.kernel.org/stable/c/2827633c9dab6304ec4cdbf369363219832e605d
https://git.kernel.org/stable/c/7330256268664ea0a7dd5b07a3fed363093477dd
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.152
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.82
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.18
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.6
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.