{"schema_version":"1.9.0","id":"CVE-2026-63915","published":"2026-07-19T14:55:19.305Z","modified":"2026-08-31T18:26:03.740800277Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3594-1","SUSE-SU-2026:3790-1","SUSE-SU-2026:3810-1","openSUSE-SU-2026:21555-1"],"summary":"nfc: hci: fix out-of-bounds read in HCP header parsing","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: hci: fix out-of-bounds read in HCP header parsing\n\nBoth nfc_hci_recv_from_llc() and nci_hci_data_received_cb() read\npacket->header from skb->data at function entry without first checking\nthat the buffer holds at least one byte. A malicious NFC peer can send\na 0-byte HCP frame that passes through the SHDLC layer and reaches\nthese functions, causing an out-of-bounds heap read of packet->header.\nThe same 0-byte frame, if queued as a non-final fragment, also causes\nthe reassembly loop to underflow msg_len to UINT_MAX, triggering\nskb_over_panic() when the reassembled skb is written.\n\nFix this by adding a pskb_may_pull() check at the entry of each\nfunction before packet->header is first accessed. The existing\npskb_may_pull() checks before the reassembled hcp_skb is cast to\nstruct hcp_packet remain in place to guard the 2-byte HCP message\nheader.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8b8d2e08bf0d50193931afd27482a59376b66b2b"},{"fixed":"ed6d5d97dad0334a7f43d218753429cbe2f70a4f"},{"fixed":"b99366d74b535d0cadb1ef73e04639415d9ff3b7"},{"fixed":"37382293f174b82a0616c8295e32b1fc8e13d1ed"},{"fixed":"c4cc6b3b0013acb3ed0b2b60e57dfae98647fe98"},{"fixed":"1905f5ec3641b2b234bb63549c8ca11ab85466eb"},{"fixed":"22d41b176b9989efd21c3b2d3abf6728f05b9d9a"},{"fixed":"83b1362edc9d6ae376c6f36da116e2c70f2e70a6"},{"fixed":"f040e590c035bfd9553fe79ee9585caf1b14d67b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63915.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"5.10.259"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.210"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.93"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63915.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1905f5ec3641b2b234bb63549c8ca11ab85466eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/22d41b176b9989efd21c3b2d3abf6728f05b9d9a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/37382293f174b82a0616c8295e32b1fc8e13d1ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83b1362edc9d6ae376c6f36da116e2c70f2e70a6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b99366d74b535d0cadb1ef73e04639415d9ff3b7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c4cc6b3b0013acb3ed0b2b60e57dfae98647fe98"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed6d5d97dad0334a7f43d218753429cbe2f70a4f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f040e590c035bfd9553fe79ee9585caf1b14d67b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63915.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63915"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63915.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}