{"id":"CVE-2025-21996","summary":"drm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: fix uninitialized size issue in radeon_vce_cs_parse()\n\nOn the off chance that command stream passed from userspace via\nioctl() call to radeon_vce_cs_parse() is weirdly crafted and\nfirst command to execute is to encode (case 0x03000001), the function\nin question will attempt to call radeon_vce_cs_reloc() with size\nargument that has not been properly initialized. Specifically, 'size'\nwill point to 'tmp' variable before the latter had a chance to be\nassigned any value.\n\nPlay it safe and init 'tmp' with 0, thus ensuring that\nradeon_vce_cs_reloc() will catch an early error in cases like these.\n\nFound by Linux Verification Center (linuxtesting.org) with static\nanalysis tool SVACE.\n\n(cherry picked from commit 2d52de55f9ee7aaee0e09ac443f77855989c6b68)","modified":"2026-04-16T04:34:53.661798817Z","published":"2025-04-03T07:18:59.933Z","related":["SUSE-SU-2025:01614-1","SUSE-SU-2025:01707-1","SUSE-SU-2025:01919-1","SUSE-SU-2025:01951-1","SUSE-SU-2025:01964-1","SUSE-SU-2025:01967-1","SUSE-SU-2025:1293-1","SUSE-SU-2025:20192-1","SUSE-SU-2025:20206-1","SUSE-SU-2025:20270-1","SUSE-SU-2025:20283-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21996.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0effb378ebce52b897f85cd7f828854b8c7cb636"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ce08215cad55c10a6eeeb33d3583b6cfffe3ab8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b4d9d20fd455a97920cf158dd19163b879cf65d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78b07dada3f02f77762d0755a96d35f53b02be69"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b2da9c673a0da1359a2151f7ce773e2f77d71a9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd1801aa01bba1760357f2a641346ae149686713"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd8689b52a24807c2d5ce0a17cb26dc87f75235c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f5e049028124f755283f2c07e7a3708361ed1dc8"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21996.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21996"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2fc5703abda201f138faf63bdca743d04dbf4b1a"},{"fixed":"0effb378ebce52b897f85cd7f828854b8c7cb636"},{"fixed":"5b4d9d20fd455a97920cf158dd19163b879cf65d"},{"fixed":"9b2da9c673a0da1359a2151f7ce773e2f77d71a9"},{"fixed":"78b07dada3f02f77762d0755a96d35f53b02be69"},{"fixed":"3ce08215cad55c10a6eeeb33d3583b6cfffe3ab8"},{"fixed":"dd1801aa01bba1760357f2a641346ae149686713"},{"fixed":"f5e049028124f755283f2c07e7a3708361ed1dc8"},{"fixed":"dd8689b52a24807c2d5ce0a17cb26dc87f75235c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21996.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}