{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56645","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-27T15:00:39.840Z","datePublished":"2024-12-27T15:02:46.531Z","dateUpdated":"2025-11-03T20:51:51.200Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T10:00:55.403Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: j1939_session_new(): fix skb reference counting\n\nSince j1939_session_skb_queue() does an extra skb_get() for each new\nskb, do the same for the initial one in j1939_session_new() to avoid\nrefcount underflow.\n\n[mkl: clean up commit message]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/can/j1939/transport.c"],"versions":[{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"224e606a8d8e8c7db94036272c47a37455667313","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"b3282c2bebeeb82ceec492ee4972f51ee7a4a132","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"4199dd78a59896e091d3a7a05a77451aa7fd724d","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"f117cba69cbbd496babb3defcdf440df4fd6fe14","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"426d94815e12b6bdb9a75af294fbbafb9301601d","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"68fceb143b635cdc59fed3896d5910aff38f345e","status":"affected","versionType":"git"},{"version":"9d71dd0c70099914fcd063135da3c580865e924c","lessThan":"a8c695005bfe6569acd73d777ca298ddddd66105","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/can/j1939/transport.c"],"versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","status":"unaffected","versionType":"semver"},{"version":"5.4.287","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.231","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.174","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.120","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.66","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.5","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13","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":"5.4","versionEndExcluding":"5.4.287"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.6.66"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.12.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/224e606a8d8e8c7db94036272c47a37455667313"},{"url":"https://git.kernel.org/stable/c/b3282c2bebeeb82ceec492ee4972f51ee7a4a132"},{"url":"https://git.kernel.org/stable/c/4199dd78a59896e091d3a7a05a77451aa7fd724d"},{"url":"https://git.kernel.org/stable/c/f117cba69cbbd496babb3defcdf440df4fd6fe14"},{"url":"https://git.kernel.org/stable/c/426d94815e12b6bdb9a75af294fbbafb9301601d"},{"url":"https://git.kernel.org/stable/c/68fceb143b635cdc59fed3896d5910aff38f345e"},{"url":"https://git.kernel.org/stable/c/a8c695005bfe6569acd73d777ca298ddddd66105"}],"title":"can: j1939: j1939_session_new(): fix skb reference counting","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T20:51:51.200Z"}}]}}