{"id":"CVE-2023-54314","state":"PUBLISHED","title":"media: af9005: Fix null-ptr-deref in af9005_i2c_xfer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: af9005: Fix null-ptr-deref in af9005_i2c_xfer\n\nIn af9005_i2c_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach af9005_i2c_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")","publishedAt":"2025-12-30T12:23:45.179Z","updatedAt":"2026-05-11T19:59:34.318Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"98c12abb275b75a98ff62de9466d21e4daa98536","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"63d962ac7a52c0ff4cd09af2e284dce5e5955dfe","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"c7e5ac737db25d7387fe517cb5207706782b6cf8","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"033b0c0780adee32dde218179e9bc51d2525108f","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"abb6fd93e05e80668d2317fe1110bc99b05034c3","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"e595ff350b2fd600823ee8491df7df693ae4b7c5","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"f4ee84f27625ce1fdf41e8483fa0561a1b837d10","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb/af9005.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"4.14.326","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.295","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.257","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.197","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.133","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.55","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.5","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb/af9005.c"]}],"references":["https://git.kernel.org/stable/c/98c12abb275b75a98ff62de9466d21e4daa98536","https://git.kernel.org/stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe","https://git.kernel.org/stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9","https://git.kernel.org/stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8","https://git.kernel.org/stable/c/033b0c0780adee32dde218179e9bc51d2525108f","https://git.kernel.org/stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3","https://git.kernel.org/stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5","https://git.kernel.org/stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:42.242Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/54xxx/CVE-2023-54314.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54314","state":"PUBLISHED","datePublished":"2025-12-30T12:23:45.179Z","dateUpdated":"2026-05-11T19:59:34.318Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:06:44.531Z"},"containers":{"cna":{"title":"media: af9005: Fix null-ptr-deref in af9005_i2c_xfer","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: af9005: Fix null-ptr-deref in af9005_i2c_xfer\n\nIn af9005_i2c_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach af9005_i2c_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"98c12abb275b75a98ff62de9466d21e4daa98536","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"63d962ac7a52c0ff4cd09af2e284dce5e5955dfe","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"c7e5ac737db25d7387fe517cb5207706782b6cf8","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"033b0c0780adee32dde218179e9bc51d2525108f","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"abb6fd93e05e80668d2317fe1110bc99b05034c3","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"e595ff350b2fd600823ee8491df7df693ae4b7c5","versionType":"git"},{"version":"af4e067e1dcf926d9523dff11e46c45fd9fa9da2","status":"affected","lessThan":"f4ee84f27625ce1fdf41e8483fa0561a1b837d10","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb/af9005.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"4.14.326","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.295","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.257","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.197","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.133","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.55","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.5.5","status":"unaffected","lessThanOrEqual":"6.5.*","versionType":"semver"},{"version":"6.6","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/usb/dvb-usb/af9005.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/98c12abb275b75a98ff62de9466d21e4daa98536"},{"url":"https://git.kernel.org/stable/c/63d962ac7a52c0ff4cd09af2e284dce5e5955dfe"},{"url":"https://git.kernel.org/stable/c/0c02eb70b1dd4ae9bb304ce6cdadbc6faba2b2e9"},{"url":"https://git.kernel.org/stable/c/c7e5ac737db25d7387fe517cb5207706782b6cf8"},{"url":"https://git.kernel.org/stable/c/033b0c0780adee32dde218179e9bc51d2525108f"},{"url":"https://git.kernel.org/stable/c/abb6fd93e05e80668d2317fe1110bc99b05034c3"},{"url":"https://git.kernel.org/stable/c/e595ff350b2fd600823ee8491df7df693ae4b7c5"},{"url":"https://git.kernel.org/stable/c/f4ee84f27625ce1fdf41e8483fa0561a1b837d10"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:59:34.318Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"4.14.326"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"4.19.295"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.4.257"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.10.197"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.133"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.5.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}