{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-15T20:12:23.023535800Z","vulnerabilities":[{"cve":{"id":"CVE-2023-54039","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-12-24T11:15:56.890","lastModified":"2026-04-15T00:35:42.020","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access\n\nIn the j1939_tp_tx_dat_new() function, an out-of-bounds memory access\ncould occur during the memcpy() operation if the size of skb->cb is\nlarger than the size of struct j1939_sk_buff_cb. This is because the\nmemcpy() operation uses the size of skb->cb, leading to a read beyond\nthe struct j1939_sk_buff_cb.\n\nUpdated the memcpy() operation to use the size of struct\nj1939_sk_buff_cb instead of the size of skb->cb. This ensures that the\nmemcpy() operation only reads the memory within the bounds of struct\nj1939_sk_buff_cb, preventing out-of-bounds memory access.\n\nAdditionally, add a BUILD_BUG_ON() to check that the size of skb->cb\nis greater than or equal to the size of struct j1939_sk_buff_cb. This\nensures that the skb->cb buffer is large enough to hold the\nj1939_sk_buff_cb structure.\n\n[mkl: rephrase commit message]"}],"metrics":{},"references":[{"url":"https://git.kernel.org/stable/c/36befc9aed6202b4a9b906529aea13eacd7e34ff","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4c3fb22a6ec68258ee129a2e6b720f43dffc562f","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4fe1d9b6231a68ffc91318f57fd8e4982f028cf7","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/70caa596d158a5d84b117f722d58f3ea503a5ba9","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b45193cb4df556fe6251b285a5ce44046dd36b4a","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d2136f05690c272dfc9f9d6efcc51d5f53494b33","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}]}}]}