{"id":"CVE-2026-74292","state":"PUBLISHED","title":"ASoC: tegra: tegra210_ahub: Validate written enum value","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tegra: tegra210_ahub: Validate written enum value\n\ntegra_ahub_put_value_enum() reads e->values[item[0]] before\nchecking whether item[0] is within the enum item range. The existing\ncheck therefore happens too late to prevent an out-of-range read of the\nvalues array.\n\nMove the check before the array access.","publishedAt":"2026-08-15T05:57:58.250Z","updatedAt":"2026-10-16T18:55:30.680Z","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":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"4e45e4c2015519a39c40eb575c03b77807fb5080","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"964f8f9015fb117402d8d2186593397cd93388e9","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"2ec7d16fe21c68b0879873a2abf9aac854c96134","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"4bcb23635d5059ee71f3fb89719ea14aada6fd59","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"f67d63628fe158b3a6e6b33a2b8c83ff118699d1","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"e098c9c6477dfa3cb363282100108484ceba5cc5","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"226d93b65f4f99b35fb7a03bdb24acb577364ebc","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"1d8aabb413b5638670dfd1162169edc0ba276a2e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/tegra/tegra210_ahub.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","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":["sound/soc/tegra/tegra210_ahub.c"]}],"references":["https://git.kernel.org/stable/c/4e45e4c2015519a39c40eb575c03b77807fb5080","https://git.kernel.org/stable/c/964f8f9015fb117402d8d2186593397cd93388e9","https://git.kernel.org/stable/c/2ec7d16fe21c68b0879873a2abf9aac854c96134","https://git.kernel.org/stable/c/4bcb23635d5059ee71f3fb89719ea14aada6fd59","https://git.kernel.org/stable/c/f67d63628fe158b3a6e6b33a2b8c83ff118699d1","https://git.kernel.org/stable/c/e098c9c6477dfa3cb363282100108484ceba5cc5","https://git.kernel.org/stable/c/226d93b65f4f99b35fb7a03bdb24acb577364ebc","https://git.kernel.org/stable/c/1d8aabb413b5638670dfd1162169edc0ba276a2e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74292.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74292","state":"PUBLISHED","datePublished":"2026-08-15T05:57:58.250Z","dateUpdated":"2026-10-16T18:55:30.680Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.881Z"},"containers":{"cna":{"title":"ASoC: tegra: tegra210_ahub: Validate written enum value","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tegra: tegra210_ahub: Validate written enum value\n\ntegra_ahub_put_value_enum() reads e->values[item[0]] before\nchecking whether item[0] is within the enum item range. The existing\ncheck therefore happens too late to prevent an out-of-range read of the\nvalues array.\n\nMove the check before the array access."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"4e45e4c2015519a39c40eb575c03b77807fb5080","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"964f8f9015fb117402d8d2186593397cd93388e9","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"2ec7d16fe21c68b0879873a2abf9aac854c96134","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"4bcb23635d5059ee71f3fb89719ea14aada6fd59","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"f67d63628fe158b3a6e6b33a2b8c83ff118699d1","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"e098c9c6477dfa3cb363282100108484ceba5cc5","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"226d93b65f4f99b35fb7a03bdb24acb577364ebc","versionType":"git"},{"version":"16e1bcc2caf446fa3e1daa040b59fd6f6272a766","status":"affected","lessThan":"1d8aabb413b5638670dfd1162169edc0ba276a2e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/tegra/tegra210_ahub.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","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":["sound/soc/tegra/tegra210_ahub.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4e45e4c2015519a39c40eb575c03b77807fb5080"},{"url":"https://git.kernel.org/stable/c/964f8f9015fb117402d8d2186593397cd93388e9"},{"url":"https://git.kernel.org/stable/c/2ec7d16fe21c68b0879873a2abf9aac854c96134"},{"url":"https://git.kernel.org/stable/c/4bcb23635d5059ee71f3fb89719ea14aada6fd59"},{"url":"https://git.kernel.org/stable/c/f67d63628fe158b3a6e6b33a2b8c83ff118699d1"},{"url":"https://git.kernel.org/stable/c/e098c9c6477dfa3cb363282100108484ceba5cc5"},{"url":"https://git.kernel.org/stable/c/226d93b65f4f99b35fb7a03bdb24acb577364ebc"},{"url":"https://git.kernel.org/stable/c/1d8aabb413b5638670dfd1162169edc0ba276a2e"}],"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 bug is reached only via a local ALSA control write (ioctl on /dev/snd/controlC*) to a tegra210_ahub DAPM mux Route enum; there is no network, Bluetooth, or physical-bus path to this callback on Tegra AHUB platforms.\nAC:L - An attacker with access to the ALSA control device can set enumerated.item[0] above e->items and reliably trigger the out-of-bounds read on every attempt; no race, special timing, or victim state is required beyond the driver being loaded.\nPR:L - Exploitation requires only local ability to open and write ALSA mixer controls, which on typical Linux/Tegra deployments (Jetson, automotive IVI, embedded kiosks) is granted to standard users in the audio group rather than requiring init-namespace root.\nUI:N - No end-user action such as plugging in hardware or mounting media is needed; a local attacker directly issues the crafted control write to trigger tegra_ahub_put_value_enum().\nS:U - Impact is confined to kernel memory disclosure or denial-of-service within the same OS security boundary; this is not a VM escape, IOMMU bypass, or cross-authority sandbox breakout.\nC:H - tegra_ahub_put_value_enum() indexes e->values[item[0]] before validating item[0] < e->items, giving an attacker-controlled out-of-bounds kernel read that can disclose adjacent memory and, with large indices, probe arbitrary offsets.\nI:N - When item[0] is out of range the function returns -EINVAL before using the fetched value to compute reg_idx/bit_pos or update AHUB crossbar registers, so the flaw does not directly modify kernel memory or hardware state.\nA:H - Supplying a sufficiently large out-of-bounds item[0] can read unmapped kernel memory and trigger a kernel oops or panic; even bounded over-reads enable repeatable local denial-of-service against audio-critical Tegra systems."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:45:30.088Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-74292","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-16T18:52:23.166039Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-16T18:55:30.680Z"}}]}}}