{"id":"CVE-2026-46205","state":"PUBLISHED","title":"staging: media: atomisp: Disallow all private IOCTLs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: media: atomisp: Disallow all private IOCTLs\n\nDisallow all private IOCTLs. These aren't quite as safe as one could\nassume of IOCTL handlers; disable them for now. Instead of removing the\ncode, return in the beginning of the function if cmd is non-zero in order\nto keep static checkers happy.","publishedAt":"2026-05-28T09:40:23.117Z","updatedAt":"2026-08-05T12:30:27.283Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a49d25364dfb9f8a64037488a39ab1f56c5fa419","status":"affected","lessThan":"51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"64e85679beafe082fc2e70a557ec356c7fd27548","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"8774f8cb661f57ae43cc3bc0509d16ef1f406e45","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"ceb1b5f910e58986ea544ff8c9c2f23ae9a52414","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"8c7a281a99224a5b9af99c4dcd98d68eea75926c","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"c7848b67ef10f581114b6a2f52b160fc20eb52c9","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"6850a439f8d23d4979624f1d6880d3118d473a28","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/atomisp/pci/atomisp_ioctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"5.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"4.18","status":"unaffected","lessThan":"5.8","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.90","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.32","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.9","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/atomisp/pci/atomisp_ioctl.c"]}],"references":["https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654","https://git.kernel.org/stable/c/64e85679beafe082fc2e70a557ec356c7fd27548","https://git.kernel.org/stable/c/8774f8cb661f57ae43cc3bc0509d16ef1f406e45","https://git.kernel.org/stable/c/ceb1b5f910e58986ea544ff8c9c2f23ae9a52414","https://git.kernel.org/stable/c/8c7a281a99224a5b9af99c4dcd98d68eea75926c","https://git.kernel.org/stable/c/6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3","https://git.kernel.org/stable/c/c7848b67ef10f581114b6a2f52b160fc20eb52c9","https://git.kernel.org/stable/c/6850a439f8d23d4979624f1d6880d3118d473a28","https://git.kernel.org/stable/c/2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46205.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46205","state":"PUBLISHED","datePublished":"2026-05-28T09:40:23.117Z","dateUpdated":"2026-08-05T12:30:27.283Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.105Z"},"containers":{"cna":{"title":"staging: media: atomisp: Disallow all private IOCTLs","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: media: atomisp: Disallow all private IOCTLs\n\nDisallow all private IOCTLs. These aren't quite as safe as one could\nassume of IOCTL handlers; disable them for now. Instead of removing the\ncode, return in the beginning of the function if cmd is non-zero in order\nto keep static checkers happy."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a49d25364dfb9f8a64037488a39ab1f56c5fa419","status":"affected","lessThan":"51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"64e85679beafe082fc2e70a557ec356c7fd27548","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"8774f8cb661f57ae43cc3bc0509d16ef1f406e45","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"ceb1b5f910e58986ea544ff8c9c2f23ae9a52414","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"8c7a281a99224a5b9af99c4dcd98d68eea75926c","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"c7848b67ef10f581114b6a2f52b160fc20eb52c9","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"6850a439f8d23d4979624f1d6880d3118d473a28","versionType":"git"},{"version":"ad85094b293e40e7a2f831b0311a389d952ebd5e","status":"affected","lessThan":"2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/atomisp/pci/atomisp_ioctl.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.12","status":"affected"},{"version":"5.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.12","versionType":"semver"},{"version":"4.18","status":"unaffected","lessThan":"5.8","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.140","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.90","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.32","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.9","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/media/atomisp/pci/atomisp_ioctl.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654"},{"url":"https://git.kernel.org/stable/c/64e85679beafe082fc2e70a557ec356c7fd27548"},{"url":"https://git.kernel.org/stable/c/8774f8cb661f57ae43cc3bc0509d16ef1f406e45"},{"url":"https://git.kernel.org/stable/c/ceb1b5f910e58986ea544ff8c9c2f23ae9a52414"},{"url":"https://git.kernel.org/stable/c/8c7a281a99224a5b9af99c4dcd98d68eea75926c"},{"url":"https://git.kernel.org/stable/c/6f1ce75a75c65061e7a720c3d0ee5f8adab7a2d3"},{"url":"https://git.kernel.org/stable/c/c7848b67ef10f581114b6a2f52b160fc20eb52c9"},{"url":"https://git.kernel.org/stable/c/6850a439f8d23d4979624f1d6880d3118d473a28"},{"url":"https://git.kernel.org/stable/c/2b7eb2c5dc72f0fc954ac4aa155f9e285e937f7c"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The vulnerable code is reached only via ioctl() on the local /dev/video* device node of the atomisp PCI ISP; there is no network or remote-peer path, and no physical interaction is required.\nAC:L - The attacker fully controls the ioctl arguments (embedded user pointers and width/height fields) and the device state (open, configure, stream, then issue the malicious ioctl), so the overflow can be triggered reliably with no conditions outside the attacker's control.\nPR:L - Private IOCTLs hit the vidioc_default path with flags=0 (no capability or priority check) and atomisp_open performs no capability check; an unprivileged local user holding the device-node ACL/video-group access (typical for the active desktop/camera session) can reach it without real root.\nUI:N - Exploitation is a self-contained sequence of ioctl calls by the attacker; no action by any other user is required.\nS:U - The corruption is confined to kernel memory within the same kernel security authority; there is no VM, IOMMU, or sandbox boundary crossing.\nC:H - The handlers provide kernel-heap out-of-bounds reads and the heap-overflow primitive can be leveraged to disclose adjacent kernel memory, enabling extensive information disclosure.\nI:H - atomisp_cp_dvs_6axis_config copies user-controlled-sized data into a smaller stream-sized heap allocation, giving a controlled kernel heap out-of-bounds write that can be leveraged for arbitrary write and code execution.\nA:H - The heap overflow corrupts kernel allocations and adjacent structures, readily causing a kernel oops/panic and full denial of service."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-05T12:30:27.283Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"4.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.12.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.18.32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}