{"id":"CVE-2023-52915","summary":"media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer\n\nIn af9035_i2c_master_xfer, msg is controlled by user. When msg[i].buf\nis null and msg[i].len is zero, former checks on msg[i].buf would be\npassed. Malicious data finally reach af9035_i2c_master_xfer. If accessing\nmsg[i].buf[0] without sanity check, null ptr deref would happen.\nWe add check on msg[i].len to prevent crash.\n\nSimilar commit:\ncommit 0ed554fd769a\n(\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")","modified":"2026-04-02T09:43:31.977151Z","published":"2024-09-06T09:07:49.695Z","related":["SUSE-SU-2024:3551-1","SUSE-SU-2024:3553-1","SUSE-SU-2024:3559-1","SUSE-SU-2024:3561-1","SUSE-SU-2024:3564-1","SUSE-SU-2024:3566-1","SUSE-SU-2024:3591-1","SUSE-SU-2024:4315-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4376-1","SUSE-SU-2025:20073-1","SUSE-SU-2025:20077-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52915.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52915.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52915"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7f882c2e353ca58695e9b4fcc9e97a9d4cbcf273"},{"fixed":"b2f54ed7739dfdf42c4df0a11131aad7c8635464"},{"fixed":"fa58d9db5cad4bb7bb694b6837e3b96d87554f2b"},{"fixed":"b49c6e5dd236787f13a062ec528d724169f11152"},{"fixed":"6c01ef65de0b321b2db1ef9abf8f1d15862b937e"},{"fixed":"d9ef84a7c222497ecb5fdf93361c76931804825e"},{"fixed":"0143f282b15f7cedc0392ea10050fb6000fd16e6"},{"fixed":"41b7181a40af84448a2b144fb02d8bf32b7e9a23"},{"fixed":"7bf744f2de0a848fb1d717f5831b03db96feae89"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52915.json"}}],"schema_version":"1.7.5"}