{"id":"CVE-2026-98576","state":"PUBLISHED","title":"nfc: llcp: fix slab-out-of-bounds reads when logging service names","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix slab-out-of-bounds reads when logging service names\n\nnfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null-\nterminated strings to pr_debug() using the %s format specifier.\nThe buffers are allocated via kmemdup() or come from netlink\nattributes and are not guaranteed to be null-terminated, causing\n__dynamic_pr_debug() to read beyond the allocated region:\n\n  KASAN: slab-out-of-bounds Read in __dynamic_pr_debug\n\nFix both call sites by using %.*s with the explicit length to limit\nthe output to the actual length of the string.","publishedAt":"2026-10-18T15:18:41.629Z","updatedAt":"2026-10-19T09:22:01.670Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"75f7c5a42fa1483f5912279a749417c284ad708f","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"6d4ca872830e46fcca9c086bf19fa9bd2faf09d2","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"a143f7835faa4fe0178448289feea4f84eeee8d6","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"8afb6c194f5781798d3ab3edf243cf5a24a9d1f9","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"8978dff632519712d1fa432991e1f2e857f90239","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"4262b12277a3e056c95fc49e9c4d7bd97035d16c","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"7dcf371a35632f035baf77bcf2c129165f772ce4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/llcp_commands.c","net/nfc/llcp_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.10","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.55","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/llcp_commands.c","net/nfc/llcp_core.c"]}],"references":["https://git.kernel.org/stable/c/75f7c5a42fa1483f5912279a749417c284ad708f","https://git.kernel.org/stable/c/6d4ca872830e46fcca9c086bf19fa9bd2faf09d2","https://git.kernel.org/stable/c/a143f7835faa4fe0178448289feea4f84eeee8d6","https://git.kernel.org/stable/c/75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b","https://git.kernel.org/stable/c/8afb6c194f5781798d3ab3edf243cf5a24a9d1f9","https://git.kernel.org/stable/c/8978dff632519712d1fa432991e1f2e857f90239","https://git.kernel.org/stable/c/4262b12277a3e056c95fc49e9c4d7bd97035d16c","https://git.kernel.org/stable/c/7dcf371a35632f035baf77bcf2c129165f772ce4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98576.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98576","state":"PUBLISHED","datePublished":"2026-10-18T15:18:41.629Z","dateUpdated":"2026-10-19T09:22:01.670Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.358Z"},"containers":{"cna":{"title":"nfc: llcp: fix slab-out-of-bounds reads when logging service names","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: fix slab-out-of-bounds reads when logging service names\n\nnfc_llcp_wks_sap() and nfc_llcp_build_sdreq_tlv() pass non-null-\nterminated strings to pr_debug() using the %s format specifier.\nThe buffers are allocated via kmemdup() or come from netlink\nattributes and are not guaranteed to be null-terminated, causing\n__dynamic_pr_debug() to read beyond the allocated region:\n\n  KASAN: slab-out-of-bounds Read in __dynamic_pr_debug\n\nFix both call sites by using %.*s with the explicit length to limit\nthe output to the actual length of the string."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"75f7c5a42fa1483f5912279a749417c284ad708f","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"6d4ca872830e46fcca9c086bf19fa9bd2faf09d2","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"a143f7835faa4fe0178448289feea4f84eeee8d6","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"8afb6c194f5781798d3ab3edf243cf5a24a9d1f9","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"8978dff632519712d1fa432991e1f2e857f90239","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"4262b12277a3e056c95fc49e9c4d7bd97035d16c","versionType":"git"},{"version":"d9b8d8e19b073096d3609bbd60f82148d128b555","status":"affected","lessThan":"7dcf371a35632f035baf77bcf2c129165f772ce4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/llcp_commands.c","net/nfc/llcp_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.10","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.55","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/nfc/llcp_commands.c","net/nfc/llcp_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/75f7c5a42fa1483f5912279a749417c284ad708f"},{"url":"https://git.kernel.org/stable/c/6d4ca872830e46fcca9c086bf19fa9bd2faf09d2"},{"url":"https://git.kernel.org/stable/c/a143f7835faa4fe0178448289feea4f84eeee8d6"},{"url":"https://git.kernel.org/stable/c/75bfd9ef4da2fb49dac1f19880d2ac4ccd07b45b"},{"url":"https://git.kernel.org/stable/c/8afb6c194f5781798d3ab3edf243cf5a24a9d1f9"},{"url":"https://git.kernel.org/stable/c/8978dff632519712d1fa432991e1f2e857f90239"},{"url":"https://git.kernel.org/stable/c/4262b12277a3e056c95fc49e9c4d7bd97035d16c"},{"url":"https://git.kernel.org/stable/c/7dcf371a35632f035baf77bcf2c129165f772ce4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:22:01.670Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.10","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}