{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43291","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:55.999Z","datePublished":"2026-05-08T13:11:15.312Z","dateUpdated":"2026-05-11T22:21:42.963Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:21:42.963Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nfc: nci: Fix parameter validation for packet data\n\nSince commit 9c328f54741b (\"net: nfc: nci: Add parameter validation for\npacket data\") communication with nci nfc chips is not working any more.\n\nThe mentioned commit tries to fix access of uninitialized data, but\nfailed to understand that in some cases the data packet is of variable\nlength and can therefore not be compared to the maximum packet length\ngiven by the sizeof(struct)."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H","baseScore":8.3,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/nci/ntf.c"],"versions":[{"version":"8fcc7315a10a84264e55bb65ede10f0af20a983f","lessThan":"a24a8a582da4426b2042e510a1080df84083b51d","status":"affected","versionType":"git"},{"version":"bfdda0123dde406dbff62e7e9136037e97998a15","lessThan":"f5218426f765eee22e178df9c126d974792fb6a5","status":"affected","versionType":"git"},{"version":"0ba68bea1e356f466ad29449938bea12f5f3711f","lessThan":"ad058a4317db7fdb3f09caa6ed536d24a62ce6a0","status":"affected","versionType":"git"},{"version":"74837bca0748763a77f77db47a0bdbe63b347628","lessThan":"3b91160e9a91b5a2662875417dc42dc5b0bf03ea","status":"affected","versionType":"git"},{"version":"9c328f54741bd5465ca1dc717c84c04242fac2e1","lessThan":"c692db813a7e3b7c3c17d6e9a3ad2a018bf1142b","status":"affected","versionType":"git"},{"version":"9c328f54741bd5465ca1dc717c84c04242fac2e1","lessThan":"498fc5d0d650c77e87fcc73808d4f43240c21805","status":"affected","versionType":"git"},{"version":"9c328f54741bd5465ca1dc717c84c04242fac2e1","lessThan":"571dcbeb8e635182bb825ae758399831805693c2","status":"affected","versionType":"git"},{"version":"c395d1e548cc68e84584ffa2e3ca9796a78bf7b9","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/nci/ntf.c"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"5.15.202","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.165","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.16","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.6","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.195","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.156","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.112","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.53","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a24a8a582da4426b2042e510a1080df84083b51d"},{"url":"https://git.kernel.org/stable/c/f5218426f765eee22e178df9c126d974792fb6a5"},{"url":"https://git.kernel.org/stable/c/ad058a4317db7fdb3f09caa6ed536d24a62ce6a0"},{"url":"https://git.kernel.org/stable/c/3b91160e9a91b5a2662875417dc42dc5b0bf03ea"},{"url":"https://git.kernel.org/stable/c/c692db813a7e3b7c3c17d6e9a3ad2a018bf1142b"},{"url":"https://git.kernel.org/stable/c/498fc5d0d650c77e87fcc73808d4f43240c21805"},{"url":"https://git.kernel.org/stable/c/571dcbeb8e635182bb825ae758399831805693c2"}],"title":"net: nfc: nci: Fix parameter validation for packet data","x_generator":{"engine":"bippy-1.2.0"}}}}