CVE-2024-27042: drm/amdgpu: Fix potential out-of-bounds access in 'amdgpu_discovery_reg_base_init()'
First published: Wed May 01 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix potential out-of-bounds access in 'amdgpu_discovery_reg_base_init()' The issue arises when the array 'adev->vcn.vcn_config' is accessed before checking if the index 'adev->vcn.num_vcn_inst' is within the bounds of the array. The fix involves moving the bounds check before the array access. This ensures that 'adev->vcn.num_vcn_inst' is within the bounds of the array before it is used as an index. Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c:1289 amdgpu_discovery_reg_base_init() error: testing array offset 'adev->vcn.num_vcn_inst' after use.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <6.6.23 | 6.6.23 |
| redhat/kernel | <6.7.11 | 6.7.11 |
| redhat/kernel | <6.8.2 | 6.8.2 |
| redhat/kernel | <6.9 | 6.9 |
| Linux Linux kernel | >=5.19<6.6.23 | |
| Linux Linux kernel | >=6.7<6.7.11 | |
| Linux Linux kernel | >=6.8<6.8.2 | |
| debian/linux | <=6.1.115-1<=6.1.119-1 | 5.10.223-1 5.10.226-1 6.12.5-1 6.12.6-1 |
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Reference Links
- https://git.kernel.org/stable/c/8db10cee51e3e11a6658742465edc21986cf1e8d
- https://git.kernel.org/stable/c/8f3e68c6a3fff53c2240762a47a0045d89371775
- https://git.kernel.org/stable/c/b33d4af102b9c1f7a83d3f0ad3cab7d2bab8f058
- https://git.kernel.org/stable/c/cdb637d339572398821204a1142d8d615668f1e9
- https://launchpad.net/bugs/cve/CVE-2024-27042
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27042
- https://nvd.nist.gov/vuln/detail/CVE-2024-27042
- https://security-tracker.debian.org/tracker/CVE-2024-27042
- https://ubuntu.com/security/CVE-2024-27042
- https://git.kernel.org/linus/cdb637d339572398821204a1142d8d615668f1e9
- https://access.redhat.com/security/cve/CVE-2024-27042
- https://lore.kernel.org/linux-cve-announce/2024050113-CVE-2024-27042-e812@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2278448
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2278447
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