{"id":"CVE-2026-72092","state":"PUBLISHED","title":"accel/amdxdna: reject command submission on devices without a submit op","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: reject command submission on devices without a submit op\n\namdxdna_cmd_submit() calls xdna->dev_info->ops->cmd_submit()\nunconditionally, but only aie2_dev_ops defines that callback.\naie4_vf_ops (the AIE4 SR-IOV virtual function) does not, so a user\nAMDXDNA_EXEC_CMD ioctl on an AIE4 device reaches a NULL function-pointer\ncall and oopses the kernel. AIE4 submits work through a mapped user queue\nand doorbell, not this ioctl path.\n\nReject the submission early with -EOPNOTSUPP when the device provides no\ncmd_submit op, so the shared EXEC ioctl is a clean no-op on such devices.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).","publishedAt":"2026-08-15T05:52:39.120Z","updatedAt":"2026-08-17T05:08:03.359Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"af7a4c2caa7a191d6e7ed33903b69f9901874cd0","versionType":"git"},{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"f7d08603c87bae19ca3e424da5ab6d0aee81886e","versionType":"git"},{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"38953513d7313992676d4136cd425cdb70c6278e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_ctx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_ctx.c"]}],"references":["https://git.kernel.org/stable/c/af7a4c2caa7a191d6e7ed33903b69f9901874cd0","https://git.kernel.org/stable/c/f7d08603c87bae19ca3e424da5ab6d0aee81886e","https://git.kernel.org/stable/c/38953513d7313992676d4136cd425cdb70c6278e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72092.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72092","state":"PUBLISHED","datePublished":"2026-08-15T05:52:39.120Z","dateUpdated":"2026-08-17T05:08:03.359Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.905Z"},"containers":{"cna":{"title":"accel/amdxdna: reject command submission on devices without a submit op","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: reject command submission on devices without a submit op\n\namdxdna_cmd_submit() calls xdna->dev_info->ops->cmd_submit()\nunconditionally, but only aie2_dev_ops defines that callback.\naie4_vf_ops (the AIE4 SR-IOV virtual function) does not, so a user\nAMDXDNA_EXEC_CMD ioctl on an AIE4 device reaches a NULL function-pointer\ncall and oopses the kernel. AIE4 submits work through a mapped user queue\nand doorbell, not this ioctl path.\n\nReject the submission early with -EOPNOTSUPP when the device provides no\ncmd_submit op, so the shared EXEC ioctl is a clean no-op on such devices.\n\nFound by 0sec automated security-research tooling (https://0sec.ai)."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"af7a4c2caa7a191d6e7ed33903b69f9901874cd0","versionType":"git"},{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"f7d08603c87bae19ca3e424da5ab6d0aee81886e","versionType":"git"},{"version":"aac243092b707bb3018e951d470cc1a9bcbaba6c","status":"affected","lessThan":"38953513d7313992676d4136cd425cdb70c6278e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_ctx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/amdxdna/amdxdna_ctx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/af7a4c2caa7a191d6e7ed33903b69f9901874cd0"},{"url":"https://git.kernel.org/stable/c/f7d08603c87bae19ca3e424da5ab6d0aee81886e"},{"url":"https://git.kernel.org/stable/c/38953513d7313992676d4136cd425cdb70c6278e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:08:03.359Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}