{"id":"CVE-2026-98555","published":"2026-10-18T16:17:07.610","lastModified":"2026-10-19T10:19:11.930","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nllc: fix skb UAF and leaks on llc_mac_hdr_init() failure\n\nIn llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(), if llc_mac_hdr_init()\nfails, kfree_skb(skb) is called instead of kfree_skb(nskb). This leaks\nthe newly allocated nskb, reads from the freed skb via LLC_I_GET_NR(pdu),\nand double-frees skb when llc_conn_state_process() drops its reference.\n\nIn llc_sap_action_send_xid_r() and llc_sap_action_send_test_r(), nskb is\nleaked if llc_mac_hdr_init() returns an error.\n\nFree nskb in all three error paths.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/060f827aa3dc47939ee306da715cd6700d129616","tags":[]},{"url":"https://git.kernel.org/stable/c/41dcae82bece9f106b4dff0ee777bba8d157c8a8","tags":[]},{"url":"https://git.kernel.org/stable/c/72f9dd522f8d6c5a00be9695c7bb74631eb5069e","tags":[]},{"url":"https://git.kernel.org/stable/c/8b855b645841b5a04e20339a22bb6d593c9b790d","tags":[]},{"url":"https://git.kernel.org/stable/c/b859ba18b5a1067f71db5618c6a4a70d55fa308b","tags":[]},{"url":"https://git.kernel.org/stable/c/cb3528ad8bb46fa6252f5d14ced7febddc18515d","tags":[]},{"url":"https://git.kernel.org/stable/c/d360b31f1a3666579422872aa7d1a751e20b76f9","tags":[]},{"url":"https://git.kernel.org/stable/c/fec0fe6838a7f45175667701fb51abb23a6ffb1e","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}