{"id":"CVE-2026-22978","state":"PUBLISHED","title":"wifi: avoid kernel-infoleak from struct iw_point","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: avoid kernel-infoleak from struct iw_point\n\nstruct iw_point has a 32bit hole on 64bit arches.\n\nstruct iw_point {\n  void __user   *pointer;       /* Pointer to the data  (in user space) */\n  __u16         length;         /* number of fields or size in bytes */\n  __u16         flags;          /* Optional params */\n};\n\nMake sure to zero the structure to avoid disclosing 32bits of kernel data\nto user space.","publishedAt":"2026-01-23T15:24:00.482Z","updatedAt":"2026-05-11T21:57:37.849Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"d943b5f592767b107ba8c12a902f17431350378c","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"a3827e310b5a73535646ef4a552d53b3c8bf74f6","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"442ceac0393185e9982323f6682a52a53e8462b1","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"024f71a57d563fbe162e528c8bf2d27e9cac7c7b","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"e3c35177103ead4658b8a62f41e3080d45885464","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"21cbf883d073abbfe09e3924466aa5e0449e7261","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/wext-core.c","net/wireless/wext-priv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.27","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.27","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.161","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.121","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.66","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.6","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/wext-core.c","net/wireless/wext-priv.c"]}],"references":["https://git.kernel.org/stable/c/d943b5f592767b107ba8c12a902f17431350378c","https://git.kernel.org/stable/c/a3827e310b5a73535646ef4a552d53b3c8bf74f6","https://git.kernel.org/stable/c/442ceac0393185e9982323f6682a52a53e8462b1","https://git.kernel.org/stable/c/d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8","https://git.kernel.org/stable/c/024f71a57d563fbe162e528c8bf2d27e9cac7c7b","https://git.kernel.org/stable/c/e3c35177103ead4658b8a62f41e3080d45885464","https://git.kernel.org/stable/c/21cbf883d073abbfe09e3924466aa5e0449e7261"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22978.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22978","state":"PUBLISHED","datePublished":"2026-01-23T15:24:00.482Z","dateUpdated":"2026-05-11T21:57:37.849Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.936Z"},"containers":{"cna":{"title":"wifi: avoid kernel-infoleak from struct iw_point","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: avoid kernel-infoleak from struct iw_point\n\nstruct iw_point has a 32bit hole on 64bit arches.\n\nstruct iw_point {\n  void __user   *pointer;       /* Pointer to the data  (in user space) */\n  __u16         length;         /* number of fields or size in bytes */\n  __u16         flags;          /* Optional params */\n};\n\nMake sure to zero the structure to avoid disclosing 32bits of kernel data\nto user space."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"d943b5f592767b107ba8c12a902f17431350378c","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"a3827e310b5a73535646ef4a552d53b3c8bf74f6","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"442ceac0393185e9982323f6682a52a53e8462b1","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"024f71a57d563fbe162e528c8bf2d27e9cac7c7b","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"e3c35177103ead4658b8a62f41e3080d45885464","versionType":"git"},{"version":"87de87d5e47f94b4ea647a5bd1bc8dc1f7930db4","status":"affected","lessThan":"21cbf883d073abbfe09e3924466aa5e0449e7261","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/wext-core.c","net/wireless/wext-priv.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.27","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.27","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.161","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.121","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.66","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.6","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/wext-core.c","net/wireless/wext-priv.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d943b5f592767b107ba8c12a902f17431350378c"},{"url":"https://git.kernel.org/stable/c/a3827e310b5a73535646ef4a552d53b3c8bf74f6"},{"url":"https://git.kernel.org/stable/c/442ceac0393185e9982323f6682a52a53e8462b1"},{"url":"https://git.kernel.org/stable/c/d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8"},{"url":"https://git.kernel.org/stable/c/024f71a57d563fbe162e528c8bf2d27e9cac7c7b"},{"url":"https://git.kernel.org/stable/c/e3c35177103ead4658b8a62f41e3080d45885464"},{"url":"https://git.kernel.org/stable/c/21cbf883d073abbfe09e3924466aa5e0449e7261"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:57:37.849Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"5.10.248"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.1.161"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.6.121"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.12.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.18.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}