{"id":"CVE-2023-52586","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: Add mutex lock in control vblank irq\n\nAdd a mutex lock to control vblank irq to synchronize vblank\nenable/disable operations happening from different threa…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: Add mutex lock in control vblank irq\n\nAdd a mutex lock to control vblank irq to synchronize vblank\nenable/disable operations happening from different threa…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-362"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 6.7.4"],"patched":["linux_kernel 6.7.4"],"published":"2024-03-06","updated":"2026-08-04","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-52586","references":[{"url":"https://git.kernel.org/stable/c/14f109bf74dd67e1d0469fed859c8e506b0df53f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/45284ff733e4caf6c118aae5131eb7e7cf3eea5a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/14f109bf74dd67e1d0469fed859c8e506b0df53f","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/45284ff733e4caf6c118aae5131eb7e7cf3eea5a","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52586.json"},{"url":"https://access.redhat.com/security/cve/CVE-2023-52586"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2268333"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-52586"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52586"},{"url":"https://lore.kernel.org/linux-cve-announce/2024030644-CVE-2023-52586-3ecb@gregkh/T"},{"url":"https://git.kernel.org/stable/c/f6dd625053726ea2a209282bee97218f2ec04149"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.00232,"epssPercentile":0.14047,"ingestedAt":"2026-08-05T05:58:02.695Z","scores":{"nvd":7.8,"vendor":6.7,"cna":7.8},"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-09-10T15:56:01.645809Z"},"slug":"CVE-2023-52586","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: Add mutex lock in control vblank irq\n\nAdd a mutex lock to control vblank irq to synchronize vblank\nenable/disable operations happening from different threads to prevent\nrace conditions while registering/unregistering the vblank irq callback.\n\nv4: -Removed vblank_ctl_lock from dpu_encoder_virt, so it is only a\n    parameter of dpu_encoder_phys.\n    -Switch from atomic refcnt to a simple int counter as mutex has\n    now been added\nv3: Mistakenly did not change wording in last version. It is done now.\nv2: Slightly changed wording of commit message\n\nPatchwork: https://patchwork.freedesktop.org/patch/571854/\n\n## Affected\n\n- `linux_kernel < 6.7.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.7.4`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52586.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}