{"id":"CVE-2023-52867","state":"PUBLISHED","title":"drm/radeon: possible buffer overflow","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: possible buffer overflow\n\nBuffer 'afmt_status' of size 6 could overflow, since index 'afmt_idx' is\nchecked after access.","publishedAt":"2024-05-21T15:31:57.866Z","updatedAt":"2026-08-05T09:11:44.110Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"112d4b02d94bf9fa4f1d3376587878400dd74783","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"caaa74541459c4c9e2c10046cf66ad2890483d0f","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"ddc42881f170f1f518496f5a70447501335fc783","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"7b063c93bece827fde237fae1c101bceeee4e896","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"347f025a02b3a5d715a0b471fc3b1439c338ad94","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"341e79f8aec6af6b0061b8171d77b085835c6a58","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"d9b4fa249deaae1145d6fc2b64dae718e5c7a855","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"19534a7a225f1bf2da70a9a90d41d0215f8f6b45","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"dd05484f99d16715a88eedfca363828ef9a4c2d4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/radeon/evergreen.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.13","versionType":"semver"},{"version":"4.14.330","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.299","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.261","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.201","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.139","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.63","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.12","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6.2","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/radeon/evergreen.c"]}],"references":["https://git.kernel.org/stable/c/112d4b02d94bf9fa4f1d3376587878400dd74783","https://git.kernel.org/stable/c/caaa74541459c4c9e2c10046cf66ad2890483d0f","https://git.kernel.org/stable/c/ddc42881f170f1f518496f5a70447501335fc783","https://git.kernel.org/stable/c/7b063c93bece827fde237fae1c101bceeee4e896","https://git.kernel.org/stable/c/347f025a02b3a5d715a0b471fc3b1439c338ad94","https://git.kernel.org/stable/c/341e79f8aec6af6b0061b8171d77b085835c6a58","https://git.kernel.org/stable/c/d9b4fa249deaae1145d6fc2b64dae718e5c7a855","https://git.kernel.org/stable/c/19534a7a225f1bf2da70a9a90d41d0215f8f6b45","https://git.kernel.org/stable/c/dd05484f99d16715a88eedfca363828ef9a4c2d4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52867.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52867","state":"PUBLISHED","datePublished":"2024-05-21T15:31:57.866Z","dateUpdated":"2026-08-05T09:11:44.110Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-21T15:19:24.262Z"},"containers":{"cna":{"title":"drm/radeon: possible buffer overflow","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: possible buffer overflow\n\nBuffer 'afmt_status' of size 6 could overflow, since index 'afmt_idx' is\nchecked after access."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"112d4b02d94bf9fa4f1d3376587878400dd74783","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"caaa74541459c4c9e2c10046cf66ad2890483d0f","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"ddc42881f170f1f518496f5a70447501335fc783","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"7b063c93bece827fde237fae1c101bceeee4e896","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"347f025a02b3a5d715a0b471fc3b1439c338ad94","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"341e79f8aec6af6b0061b8171d77b085835c6a58","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"d9b4fa249deaae1145d6fc2b64dae718e5c7a855","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"19534a7a225f1bf2da70a9a90d41d0215f8f6b45","versionType":"git"},{"version":"5cc4e5fc293bfe2634535f544427e8c6061492a5","status":"affected","lessThan":"dd05484f99d16715a88eedfca363828ef9a4c2d4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/radeon/evergreen.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.13","versionType":"semver"},{"version":"4.14.330","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.299","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.261","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.201","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.139","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.63","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.12","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6.2","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/radeon/evergreen.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/112d4b02d94bf9fa4f1d3376587878400dd74783"},{"url":"https://git.kernel.org/stable/c/caaa74541459c4c9e2c10046cf66ad2890483d0f"},{"url":"https://git.kernel.org/stable/c/ddc42881f170f1f518496f5a70447501335fc783"},{"url":"https://git.kernel.org/stable/c/7b063c93bece827fde237fae1c101bceeee4e896"},{"url":"https://git.kernel.org/stable/c/347f025a02b3a5d715a0b471fc3b1439c338ad94"},{"url":"https://git.kernel.org/stable/c/341e79f8aec6af6b0061b8171d77b085835c6a58"},{"url":"https://git.kernel.org/stable/c/d9b4fa249deaae1145d6fc2b64dae718e5c7a855"},{"url":"https://git.kernel.org/stable/c/19534a7a225f1bf2da70a9a90d41d0215f8f6b45"},{"url":"https://git.kernel.org/stable/c/dd05484f99d16715a88eedfca363828ef9a4c2d4"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The flaw is in the local radeon IH IRQ path (PCI interrupt → radeon_driver_irq_handler_kms → evergreen_irq_process) on evergreen/sumo/btc/cayman/trinity GPUs; it is not reachable via network protocols or remote peers.\nAC:L - When an IH entry with src_id 44 and out-of-range src_data is present, the out-of-bounds afmt_status index is used deterministically with no race or layout dependency; under the uncertainty rule this is scored Low rather than requiring attacker-uncontrollable hardware glitches.\nPR:L - Reachability is on systems where an ordinary local account can use DRM/seat GPU access (render/primary nodes, HDMI audio activity that exercises AFMT IRQs), which does not require real init-namespace root; Low is chosen over High under the higher-severity rule.\nUI:N - IRQ processing runs in kernel interrupt context from GPU-generated IH entries; no separate victim action such as mounting a filesystem or opening a crafted file is required.\nS:U - Any resulting oops or memory access stays inside the host kernel/radeon driver authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - afmt_idx is taken from 28-bit IH src_data and used to index afmt_status[6] before the bounds check, yielding an unbounded out-of-bounds kernel read; per kernel CNA guidance such OOB reads are High unless strictly bounded.\nI:N - The only store (afmt_status[afmt_idx] &= ~AFMT_AZ_FORMAT_WTRIG) runs after if (afmt_idx > 5) break, so out-of-range indices never write; there is no OOB write or control-flow hijack primitive.\nA:H - A sufficiently large src_data makes the OOB read touch unmapped memory and oops in IRQ context; any kernel oops/panic is High availability impact."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-05T09:11:44.110Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"4.14.330"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"4.19.299"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.4.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.10.201"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"5.15.139"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.1.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.5.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.6.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.13","versionEndExcluding":"6.7"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2023-52867","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-21T17:50:12.334865Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:22:41.676Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/112d4b02d94bf9fa4f1d3376587878400dd74783","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/caaa74541459c4c9e2c10046cf66ad2890483d0f","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ddc42881f170f1f518496f5a70447501335fc783","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7b063c93bece827fde237fae1c101bceeee4e896","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/347f025a02b3a5d715a0b471fc3b1439c338ad94","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/341e79f8aec6af6b0061b8171d77b085835c6a58","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d9b4fa249deaae1145d6fc2b64dae718e5c7a855","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/19534a7a225f1bf2da70a9a90d41d0215f8f6b45","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/dd05484f99d16715a88eedfca363828ef9a4c2d4","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T23:11:36.225Z"}}]}}}