In the Linux kernel, the following vulnerability has been resolved:
drm/edid: In connector_bad_edid() cap num_of_ext by num_blocks read
In commit e11f5bd8228f ("drm: Add support for DP 1.4 Compliance edid corruption test") the function connector_bad_edid() started assuming that the memory for the EDID passed to it was big enough to hold `edid[0x7e] + 1` blocks of data (1 extra for the base block). It completely ignored the fact that the function was passed `num_blocks` which indicated how much memory had been allocated for the EDID.
Let's fix this by adding a bounds check.
This is important for handling the case where there's an error in the first block of the EDID. In that case we will call connector_bad_edid() without having re-allocated memory based on `edid[0x7e]`.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-headersUpgrade python-perfUpgrade kernel-toolsUpgrade kernelUpgrade kernel-livepatch-5.10.75-79.358Upgrade perfUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade bpftoolUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-devel | May 22, 2025 | May 22, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 22, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | May 22, 2024 |
| Suse | — | Upgrade gfs2-kmp-defaultUpgrade dtb-amlogicUpgrade kernel-source-vanillaUpgrade kernel-source-rtUpgrade kernel-default-vdsoUpgrade kernel-kvmsmallUpgrade kernel-preemptUpgrade kernel-kvmsmall-vdsoUpgrade kernel-rt-optionalUpgrade reiserfs-kmp-64kbUpgrade kernel-obs-buildUpgrade kernel-debug-vdsoUpgrade kernel-defaultUpgrade kernel-azure-develUpgrade kernel-sourceUpgrade kernel-default-base-rebuildUpgrade kernel-syms-azureUpgrade kernel-azureUpgrade kernel-64kb-extraUpgrade dtb-rockchipUpgrade kernel-rt-vdsoUpgrade dtb-sprdUpgrade dlm-kmp-rtUpgrade kselftests-kmp-64kbUpgrade kernel-rt_debug-vdsoUpgrade kernel-syms-rtUpgrade dlm-kmp-azureUpgrade kernel-rt-livepatchUpgrade cluster-md-kmp-defaultUpgrade dtb-qcomUpgrade cluster-md-kmp-64kbUpgrade kernel-rt-livepatch-develUpgrade kernel-docsUpgrade kernel-devel-azureUpgrade reiserfs-kmp-azureUpgrade kernel-rt_debug-develUpgrade dtb-exynosUpgrade kernel-azure-livepatch-develUpgrade dtb-nvidiaUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-defaultUpgrade kernel-debug-livepatch-develUpgrade kernel-macrosUpgrade dtb-armUpgrade kernel-azure-vdsoUpgrade kernel-rtUpgrade kernel-rt-extraUpgrade ocfs2-kmp-azureUpgrade dlm-kmp-64kbUpgrade kernel-debugUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-develUpgrade dtb-xilinxUpgrade kernel-64kb-optionalUpgrade kernel-zfcpdumpUpgrade dtb-mediatekUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-azure-optionalUpgrade kernel-source-azureUpgrade kernel-rt_debugUpgrade dtb-socionextUpgrade kernel-docs-htmlUpgrade dtb-alteraUpgrade dtb-appleUpgrade dtb-hisiliconUpgrade kernel-preempt-develUpgrade dtb-apmUpgrade kernel-kvmsmall-develUpgrade dtb-freescaleUpgrade kernel-default-extraUpgrade kernel-debug-develUpgrade kernel-64kbUpgrade kernel-default-baseUpgrade kernel-64kb-livepatch-develUpgrade kernel-default-develUpgrade gfs2-kmp-rtUpgrade cluster-md-kmp-rtUpgrade dtb-broadcomUpgrade kernel-default-livepatch-develUpgrade ocfs2-kmp-rtUpgrade dtb-allwinnerUpgrade reiserfs-kmp-defaultUpgrade kernel-azure-extraUpgrade dtb-amazonUpgrade dtb-lgUpgrade dtb-amdUpgrade kselftests-kmp-rtUpgrade kernel-default-livepatchUpgrade kernel-rt-develUpgrade dlm-kmp-defaultUpgrade dtb-renesasUpgrade cluster-md-kmp-azureUpgrade kernel-64kb-develUpgrade kernel-default-optionalUpgrade ocfs2-kmp-64kbUpgrade reiserfs-kmp-rtUpgrade gfs2-kmp-azureUpgrade kernel-symsUpgrade gfs2-kmp-64kbUpgrade kernel-obs-qaUpgrade dtb-marvellUpgrade ocfs2-kmp-defaultUpgrade dtb-caviumUpgrade kernel-devel-rt | Aug 9, 2024 | May 22, 2024 |
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