{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38665","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:24.031Z","datePublished":"2025-08-22T16:02:57.458Z","dateUpdated":"2026-05-11T21:32:36.485Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:32:36.485Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode\n\nAndrei Lalaev reported a NULL pointer deref when a CAN device is\nrestarted from Bus Off and the driver does not implement the struct\ncan_priv::do_set_mode callback.\n\nThere are 2 code path that call struct can_priv::do_set_mode:\n- directly by a manual restart from the user space, via\n  can_changelink()\n- delayed automatic restart after bus off (deactivated by default)\n\nTo prevent the NULL pointer deference, refuse a manual restart or\nconfigure the automatic restart delay in can_changelink() and report\nthe error via extack to user space.\n\nAs an additional safety measure let can_restart() return an error if\ncan_priv::do_set_mode is not set instead of dereferencing it\nunchecked."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/dev/dev.c","drivers/net/can/dev/netlink.c"],"versions":[{"version":"39549eef3587f1c1e8c65c88a2400d10fd30ea17","lessThan":"6bbcf37c5114926c99a1d1e6993a5b35689d2599","status":"affected","versionType":"git"},{"version":"39549eef3587f1c1e8c65c88a2400d10fd30ea17","lessThan":"cf81a60a973358dea163f6b14062f17831ceb894","status":"affected","versionType":"git"},{"version":"39549eef3587f1c1e8c65c88a2400d10fd30ea17","lessThan":"0ca816a96fdcf32644c80cbe7a82c7b6ce6ddda5","status":"affected","versionType":"git"},{"version":"39549eef3587f1c1e8c65c88a2400d10fd30ea17","lessThan":"6acceb46180f9e160d4f0c56fcaf39ba562822ae","status":"affected","versionType":"git"},{"version":"39549eef3587f1c1e8c65c88a2400d10fd30ea17","lessThan":"c1f3f9797c1f44a762e6f5f72520b2e520537b52","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/dev/dev.c","drivers/net/can/dev/netlink.c"],"versions":[{"version":"2.6.31","status":"affected"},{"version":"0","lessThan":"2.6.31","status":"unaffected","versionType":"semver"},{"version":"6.1.148","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.101","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.41","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.15.9","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16","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":"2.6.31","versionEndExcluding":"6.1.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.6.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.12.41"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.15.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.31","versionEndExcluding":"6.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6bbcf37c5114926c99a1d1e6993a5b35689d2599"},{"url":"https://git.kernel.org/stable/c/cf81a60a973358dea163f6b14062f17831ceb894"},{"url":"https://git.kernel.org/stable/c/0ca816a96fdcf32644c80cbe7a82c7b6ce6ddda5"},{"url":"https://git.kernel.org/stable/c/6acceb46180f9e160d4f0c56fcaf39ba562822ae"},{"url":"https://git.kernel.org/stable/c/c1f3f9797c1f44a762e6f5f72520b2e520537b52"}],"title":"can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T17:40:51.309Z"}}]}}